China Shenzhen Wofly Technology Co., Ltd. Company News

1. What gases the VCR gas pressure regulator is suitable for？ VCR gas pressure regulators are suitable for hazardous and ultra-high purity gases.   2. What are the hazardous gases for which the VCR gas pressure regulator is suitable? Common dangerous gases and related information are: Ammonia (NH3): Ammonia is a common chemical widely used in agricultural fertilizers, refrigerants, cleaning agents and industrial processes. Chlorine (Cl2): Chlorine is a commonly used chemical for disinfection, bleaching, water treatment and the manufacture of other chemicals. Carbon dioxide (CO2): Carbon dioxide is a common gas used as a carbonating agent in the food and beverage industry, as well as in welding, firefighting and other industrial applications. Hydrogen Cyanide (HCN): Hydrogen cyanide is a highly toxic gas used in metallurgy, organic synthesis and pesticide manufacturing. Hydrogen Sulfide (H2S): Hydrogen sulfide is a highly malodorous and toxic gas commonly used in the oil and gas industry and other industrial processes. Hydrogen Chloride (HCl): Hydrogen Chloride is a gas with an irritating odor and is commonly used in the manufacture of chemicals, cleaning metals, and regulating pH levels. Nitrogen (N2): Nitrogen is an inert gas commonly used to protect and inert reaction environments, as well as for gas containment and pressure testing. Oxygen (O2): Oxygen is an essential gas commonly used in the medical industry, gas cutting, welding and combustion processes.   3. Characteristics of VCR gas pressure regulator？ HIGH ACCURACY REGULATION: The VCR Gas Pressure Regulator utilizes a precise regulation mechanism that provides highly accurate gas pressure regulation. This makes it useful in applications where accurate control of gas flow and pressure is required, such as in laboratory research, precision manufacturing and gas analysis. Reliability and Stability: Designed for long-term stable gas regulation, VCR gas pressure regulators are capable of providing reliable performance under varying operating conditions. They are typically constructed using high quality materials and workmanship to ensure reliable operation over long periods of time and to minimize the risk of leakage and failure. Multiple Connection Options: VCR gas pressure regulators are typically available with a variety of connection options to accommodate different gas piping and system requirements. Common connection options include VCR metal-sealed fittings, flanged connections, and threaded connections, making the installation and integration of the regulator flexible and easy. Wide range of adjustability: VCR gas pressure regulators typically have a wide range of adjustability to accommodate different pressure requirements. Whether high or low pressure regulation is required, they provide the appropriate solution. Safety features: VCR gas pressure regulators are often equipped with a variety of safety features to ensure the safe operation of the system. These features may include over-pressure protection, over-current protection, over-temperature protection and leak detection to minimize the risk of potential hazards and accidents. Adjustability: VCR gas pressure regulators are typically adjustable, allowing the user to set and adjust the pressure to specific needs. This adjustability makes the regulator suitable for different application scenarios and process requirements.   4. The environment in which the VCR gas pressure regulator is assembled？ VCR gas pressure regulators are assembled in clean rooms to ensure cleanliness and to help maintain the integrity and performance of the VCR gas pressure regulator.   5. How VCR Gas Pressure Regulators Work? Gas Inlet to Regulator: Gas enters the VCR gas pressure regulator through a connecting line. The inlet is usually connected to a gas source. Pressure Sensing: Inside the regulator there is a pressure sensing element, usually a spring or a diaphragm. As the gas enters the regulator, the pressure sensing element is subjected to the gas pressure and generates a corresponding force. Balancing of Forces: The force of the pressure sensing element is balanced against a regulating mechanism inside the regulator. This mechanism usually consists of a regulating valve and spool. Regulating Valve Operation: Depending on the force of the pressure sensing element, the regulating valve will open or close accordingly to adjust the pressure of the gas flowing through the system. When the force of the pressure sensing element increases, the regulating valve closes, decreasing the gas flow and thus lowering the system pressure. Conversely, when the force on the pressure sensing element decreases, the regulating valve opens, increasing the gas flow and raising the system pressure. Pressure Stabilization: By continually adjusting the valve opening, the VCR Gas Pressure Regulator maintains a steady pressure of gas flowing through the system. The regulator will adjust in real time as needed to ensure that the gas pressure in the system remains within a predetermined range.

In semiconductor fabrication, gases do all the work and lasers get all the attention. While lasers do etch transistor patterns into silicon, the etch that first deposits the silicon and breaks down the laser to make complete circuits is a series of gases. It is not surprising that these gases, which are used to develop microprocessors through a multi-stage process, are of high purity. In addition to this limitation, many of them have other concerns and limitations. Some of the gases are cryogenic, others are corrosive, and still others are highly toxic.   All in all, these limitations make manufacturing gas distribution systems for the semiconductor industry a considerable challenge. Material specifications are demanding. In addition to material specifications, a gas distribution array is a complex electromechanical array of interconnected systems. The environments in which they are assembled are complex and overlapping. Final fabrication takes place on site as part of the installation process. Orbital welding helps to meet the high specification gas distribution requirements while making fabrication in tight and challenging environments more manageable.   How gases are used in the semiconductor industry   Before attempting to plan the manufacture of a gas distribution system, it is necessary to understand at least the basics of semiconductor manufacturing. At its core, semiconductors use gases to deposit near-elemental solids on a surface in a highly controlled manner. These deposited solids are then modified by introducing additional gases, lasers, chemical etchants, and heat. The steps in the broad process are:   Deposition: This is the process of creating the initial silicon wafer. Silicon precursor gases are pumped into a vacuum deposition chamber and form thin silicon wafers through chemical or physical interactions.   Photolithography: The photo section refers to lasers. In the higher extreme ultraviolet lithography (EUV) spectrum used to make the highest specification chips, a carbon dioxide laser is used to etch the microprocessor circuitry into the wafer.   Etching: During the etching process, halogen-carbon gas is pumped into the chamber to activate and dissolve selected materials in the silicon substrate. This process effectively engraves the laser-printed circuitry onto the substrate.   Doping: This is an additional step that changes the conductivity of the etched surface to determine the exact conditions under which the semiconductor conducts.   Annealing: In this process, reactions between wafer layers are triggered by elevated pressure and temperature. Essentially, it finalizes the results of the previous process and creates the finalized processor in the wafer.   Chamber and Line Cleaning: The gases used in the previous steps, especially etching and doping, are often highly toxic and reactive. Therefore, the process chamber and the gas lines feeding it need to be filled with neutralizing gases to reduce or eliminate harmful reactions, and then filled with inert gases to prevent the intrusion of any contaminating gases from the outside environment.   Gas distribution systems in the semiconductor industry are often complex because of the many different gases involved and the tight control of gas flow, temperature and pressure that must be maintained over time. This is further complicated by the ultra-high purity required for each gas in the process. The gases used in the previous step must be flushed out of the lines and chambers or otherwise neutralized before the next step of the process can begin. This means that there are a large number of specialized lines, interfaces between welded tube systems and hoses, interfaces between hoses and tubes and gas regulators and sensors, as well as interfaces between all of the previously mentioned components and valves and sealing systems designed to prevent pipeline contamination of the natural gas supply from being swapped out.   In addition, cleanroom exterior and specialty gases will be equipped with bulk gas supply systems in cleanroom environments and specialized confined areas to mitigate any hazards in the event of accidental leakage. Welding these gas systems in such a complex environment is no easy task. However, with care, attention to detail and the right equipment, this task can be accomplished successfully.   Manufacturing gas distribution systems in the semiconductor industry Materials used in semiconductor gas distribution systems are highly variable. They can include things like PTFE-lined metal pipes and hoses to resist highly corrosive gases. The most common material used for general purpose piping in the semiconductor industry is 316L stainless steel - a low carbon stainless steel variant. When it comes to 316L versus 316, 316L is more resistant to intergranular corrosion. This is an important consideration when dealing with a range of highly reactive and potentially volatile gases that can corrode carbon. Welding 316L stainless steel releases less carbon precipitates. It also reduces the potential for grain boundary erosion, which can lead to pitting corrosion in welds and heat affected zones.   To reduce the possibility of piping corrosion leading to product line corrosion and contamination, 316L stainless steel welded with pure argon shielding gas and tungsten gas shielded weld rails is the standard in the semiconductor industry. The only welding process that provides the control needed to maintain a high purity environment in process piping. Automated orbital welding provides only the repeatable process control needed to complete the weld in the fabrication of semiconductor gas distribution systems. The fact that enclosed orbital weld heads can accommodate the crowded and difficult spaces at complex intersections between process areas is a significant advantage of the process. Shenzhen Wofei Technology Co., Ltd, with over 10 years of experience in the supply of industrial and specialty gases, materials, gas supply systems and gas engineering for the semiconductor, LED, DRAM, and TFT-LCD markets, we can provide you with the materials necessary to bring your products to the forefront of the industry. We can not only provide a wide range of valves and fittings for semi-conductor electronic specialty gases, but also design gas piping and equipment installation for our customers.

pneumatic diaphragm valve is a type of valve that uses compressed air to actuate a flexible diaphragm to control the flow of fluids or gases. The valve consists of a body, a diaphragm, and a pneumatic actuator that controls the movement of the diaphragm. The working principle of pneumatic diaphragm valve： （1）Air supply: Compressed air is supplied to the pneumatic actuator of the valve, which is connected to the diaphragm. （2）Diaphragm movement: The pneumatic actuator moves the diaphragm up or down, depending on the direction of the air flow. This movement opens or closes the valve, allowing or restricting the flow of fluid or gas through the valve. （3）Control signal: The pneumatic actuator is controlled by a signal from an external controller or control system, which regulates the amount of air supplied to the actuator and thus controls the position of the diaphragm. （4）Flow control: By adjusting the position of the diaphragm, the pneumatic diaphragm valve can control the flow of fluid or gas through the valve. When the diaphragm is in the open position, the fluid or gas flows through the valve, and when the diaphragm is in the closed position, the flow is restricted or stopped.   Pneumatic diaphragm valves are commonly used in a variety of applications, including chemical processing, pharmaceuticals, food and beverage, and water treatment, where reliable and efficient flow control is critical. They are known for their reliability, durability, and ease of maintenance.

Pressure is one of the important parameters in industrial production. Correct measurement and control of pressure is an important link to ensure the good operation of the production process and to realize high-quality, high-yield, low-consumption and safe production. Therefore, the detection of pressure is getting more and more attention. 1. what is the electric contact pressure gauge？ The electric contact pressure gauge is one of the most frequently contacted pressure gauges by the grassroots calibrators because of its variety, complete models and wide range of applications. The general accuracy level is 1.0-4.0, especially in the measurement and control of boilers, pressure vessels or pressure pipelines. Usually the pressure gauge is used in conjunction with the corresponding relays, contactors and other electrical devices to realize the automatic control of the measured pressure system and the purpose of signal alarm. In the course of daily use, pressure gauges will have various problems and malfunctions due to vibration, oil, wear and corrosion, etc., which require timely maintenance and calibration.   Working principle of electric contact pressure gauge？ The electric contact pressure gauge consists of a spring tube pressure gauge equipped with an electric contact. In addition to on-site indication, it is also used to signal pressure exceeding limits. The principle of pressure measurement is based on the measuring system in the spring tube under the pressure of the measured medium to force the end of the spring tube to produce the corresponding elastic deformation (displacement), through the fixed gear on the pointer will be the measured value of the indication in the dial; at the same time, drive the contact to produce the corresponding action (closed or open), so that the voltage control system in the circuit on or off, so as to achieve the purpose of the automatic control alarm and on-site instructions.   3. Calibration of electric contact pressure gauge？ The electric contact pressure gauge is actually a circuit switch operated by the pressure gauge. It is just an ordinary spring tube pressure gauge, retrofitted with electric contact signaling device. The calibration of the pressurized part is the same as that of the ordinary pressure gauge. The difference with the other pressure gauge is the reaction after connection. When verifying, first look at the accuracy of its pressure, and then look at the sensitivity of its connection reaction. Therefore, the verification is divided into two steps: (1) Pressurized part of the general-purpose pressure gauge calibration value; (2) The electrical part, after the demonstration value calibration is qualified, the electric contact signaling device should be calibrated under pressure and its connection performance should be checked with a multimeter.   4. Calibration of the pressurized part of the electric contact pressure gauge？ Comparison method is a common method to calibrate the pressure gauge. The standard pressure gauge and the measured pressure gauge are installed on the same level of the piston pressure gauge or pressure calibrator. After the piston is filled with working fluid (transformer oil) and the internal air is discharged, the needle valve on the oil cup is closed to form a closed system; the pressure of the extruded working fluid can be changed by rotating the handwheel on the piston of the piston type pressure gauge or calibrator. Hydraulic drive of the working fluid, so that the same level of standard pressure gauge and the pressure gauge to be measured pressure synchronization and equal changes; the standard pressure gauge and the pressure gauge to be measured to compare the indicated value.  

The production process of electronic specialty gases includes several processes such as synthesis, purification, filling, analysis and testing, mixing and proportioning. In order to meet the downstream semiconductor manufacturing requirements for purity and impurity content, the purification process is very important. Depending on the composition of the upstream synthesis gas or raw gas, low temperature distillation or multi-stage purification is performed.   High cleanliness requirements The preparation process of electronic special gases can be divided into two major blocks of upstream synthesis preparation and purification, which belongs to the chemical production process. The size of the production pipeline is large, and there is no special cleanliness level requirement. After downstream purification, the product is filled with gas and mixed for preparation. The production pipeline is small and has cleanliness level requirements. It needs to meet the standard specification of semiconductor manufacturing process. High sealing requirements Due to their chemical activity, electronic specialty gases also place high demands on the materials and sealing of the production process system. Just like the requirements of semiconductor manufacturing, it prevents interface leakage caused by the introduction of impurities or corrosion of special gases. The system can also be used to prevent the introduction of impurities or the leakage of interface caused by the corrosion of special gases.   High quality stability requirements The quality of electronic specialty gases includes a number of indicators such as purity and impurity particle content. Any change in the indicators will affect the results of the downstream semiconductor manufacturing process. Therefore, in order to ensure the consistency of the electronic special gas product indicators, the preparation process system to control the stability of the indicators is also very important.     Due to the chemical activity and quality requirements of EGP, the production system for EGP preparation, especially the downstream purification system, must meet the requirements of high purity materials, high sealing, high cleanliness and high quality consistency, and the construction of engineered components must meet the standards of the semiconductor manufacturing industry. What we commonly refer to as "high purity" is theoretically the definition of the purity of a substance, such as high purity gases, high purity chemicals, etc. Process systems or process system components that are applied to high-purity substances are also referred to as high-purity, such as high-purity systems and high-purity valves. Electronic specialty gas preparation systems require high purity application fittings, valves, and other fluid components, i.e., fittings and valves that are processed with high purity materials and clean manufacturing processes, and are structured for easy purging and cleaning. With high sealing performance. These fluid components are designed to meet the process flow path of the application, using the engineering and construction requirements of the semiconductor industry.   High Purity Piping Connections VCR metal gasket face seal connections and automatic guide butt weld connections are widely used in demanding fluid system purity process requirements due to the ability to meet both smooth transition of the flow path at the connection, no stagnation zone, and high sealing performance.VCR connections form a narrow surface seal by extruding a relatively soft metal gasket. Repeatable and consistent connection and sealing performance is assured each time the deformed gasket is removed and replaced.   Tubes are welded using an automatic orbital welding system. The tube is protected by high purity gas inside and out. The tungsten electrode rotates along the orbit for high quality welding. Fully automated orbital welding melts the pipe without introducing other materials, achieving a high quality weld by repeatedly controlling thin-walled pipe is difficult to achieve with manual welding.   VCR Metal Gasket Face Seal Connection   Automatic Orbital Butt Welding Connection of Pipes   High Purity Valves The chemical activity of flammable, explosive, corrosive, and toxic electronic specialty gases places high demands on the sealing of the valve. In order to improve the sealing reliability, the requirement of packingless valves to prevent external leakage, that is, switching operation of the valve stem and the valve body between the seal using metal bellows or metal diaphragm, in order to eliminate leakage due to abrasion and packing seal deformation. Bellows-sealed and diaphragm-sealed valves are commonly used in process systems for high-purity applications because of the greater reliability of the seals and the easier cleaning and purge replacement of the valve internals.   Bellows-sealed valves are a packingless needle valve construction that allows for slow opening and flow regulation. Used for electronic specialty gas filling with safety flow requirements or on precursor source bottles with high safety requirements. The all-metal stem tip seals allow for extremely low operating temperatures and are used for cryogenic liquefaction of electronic specialty gases in finished product tanks after cryogenic distillation for piping.   Springless Diaphragm Seal Valve is a 1/4" snap-open valve for use as an automatically controlled switching valve in delivery piping. They are commonly used in ultra-high-pressure, high-purity applications due to their simple internal flow path, small internal volume, and ease of purging and replacement.   Diaphragm-sealed valves that close via the stem tip can open slowly and be used at higher operating pressures than non-sprung diaphragm-sealed valves. They are widely used on high-pressure electronic specialty gas filling or precursor source bottles.   The secondary seal bellows valve can not only be used in ultra-low temperature process systems at -200 degrees, but also prevents leakage of hazardous media into the atmosphere. Usually used for very dangerous electronic special gases, such as silane filling system.   Shenzhen Wofei Technology Co., Ltd, with over 10 years of experience in the supply of industrial and specialty gases, materials, gas supply systems and gas engineering for the semiconductor, LED, DRAM, TFT-LCD markets, we can provide you with the necessary materials to push your products to the forefront of the industry. We can not only supply a wide range of valves and fittings for semi-conductor electronic specialty gases, but we can also design gas piping and equipment installation for our customers. If you have any needs in this area, please contact us at 0927023443.  

Specialty gases are often considered the lifeblood of the electronics industry and the heart of semiconductor manufacturing. The global specialty gases market is used in four key applications in the semiconductor chip manufacturing process and is directly related to the availability and potential of the technologies we use today. However, the use of gas is inevitably the need for related accessories and equipment for further processing in order to be well used; therefore, Shenzhen Wofly Technology as a gas pipeline porter, which is clearly the main battlefield of Wofly Technology, sweeping the domestic countless laboratory projects has been very mature, like Huawei Fortune 500 companies, but also have cooperated with the semiconductor project needs to provide services or products. For the semiconductor project needs to provide services or products Wofly Technology is also the biggest help it can provide, Wofly Technology's special gas certificates, as well as research and development of special gas equipment (special gas cabinet) GC, (special gas rack) GR, (valve box) VMB, (valve plate) VMP; gas mixing and proportioning device has a fully automated mixed-gas proportional cabinet, horizontal mixed-gas proportional cabinet, the two elements of the gas mixing and proportioning device, multi-distant gas mixing and proportioning device, and so on. All these can provide the greatest help for the semiconductor industry. Wolfly technology to sell products are matched with the gas, they can be equipped with a complete set of gas supply equipment, after all, engineering is their advantage, in this than many companies to be much better, it is understood that a large part of the company is only to buy products, Wolfly technology both products, and engineering and in this road has been walking for 12 years, can be said to be a wealth of experience. Although, now the Wolfly technology is not counted as one of the companies, but in the country or a small reputation, I believe that one day in the future in this industry will be a small international success, after all, the quality of the product can prove everything.

In semiconductor fabrication, gases do all the work and lasers get all the attention. While lasers do etch transistor patterns into silicon, the etch that first deposits the silicon and breaks down the laser to make complete circuits is a series of gases. It is not surprising that these gases, which are used to develop microprocessors through a multi-stage process, are of high purity. In addition to this limitation, many of them have other concerns and limitations. Some of the gases are cryogenic, others are corrosive, and still others are highly toxic. All in all, these limitations make manufacturing gas distribution systems for the semiconductor industry a considerable challenge. Material specifications are demanding. In addition to material specifications, a gas distribution array is a complex electromechanical array of interconnected systems. The environments in which they are assembled are complex and overlapping. Final fabrication takes place on site as part of the installation process. Orbital soldering helps meet the high specifications of gas distribution requirements while making manufacturing in tight, challenging environments more manageable.   How the semiconductor industry uses gases Before attempting to plan the manufacture of a gas distribution system, it is necessary to understand at least the basics of semiconductor manufacturing. At its core, semiconductors use gases to deposit near-elemental solids on a surface in a highly controlled manner. These deposited solids are then modified by introducing additional gases, lasers, chemical etchants, and heat. The steps in the broad process are: Deposition: This is the process of creating the initial silicon wafer. Silicon precursor gases are pumped into a vacuum deposition chamber and form thin silicon wafers through chemical or physical interactions. Photolithography: The photo section refers to lasers. In the higher extreme ultraviolet lithography (EUV) spectrum used to make the highest specification chips, a carbon dioxide laser is used to etch the microprocessor circuitry into the wafer. Etching: During the etching process, halogen-carbon gas is pumped into the chamber to activate and dissolve selected materials in the silicon substrate. This process effectively engraves the laser-printed circuitry onto the substrate. Doping: This is an additional step that changes the conductivity of the etched surface to determine the exact conditions under which the semiconductor conducts. Annealing: In this process, reactions between wafer layers are triggered by elevated pressure and temperature. Essentially, it finalizes the results of the previous process and creates the finalized processor in the wafer. Chamber and Line Cleaning: The gases used in the previous steps, especially etching and doping, are often highly toxic and reactive. Therefore, the process chamber and the gas lines feeding it need to be filled with neutralizing gases to reduce or eliminate harmful reactions, and then filled with inert gases to prevent the intrusion of any contaminating gases from the outside environment. Gas distribution systems in the semiconductor industry are often complex because of the many different gases involved and the tight control of gas flow, temperature and pressure that must be maintained over time. This is further complicated by the ultra-high purity required for each gas in the process. The gases used in the previous step must be flushed out of the lines and chambers or otherwise neutralized before the next step of the process can begin. This means that there are a large number of specialized lines, interfaces between the welded tube system and the hoses, interfaces between the hoses and tubes and the gas regulators and sensors, and interfaces between all of the previously mentioned components and the valves and sealing systems designed to prevent pipeline contamination of the natural gas supply from being swapped out. In addition, cleanroom exteriors and specialty gases will be equipped with bulk gas supply systems in cleanroom environments and specialized confined areas to mitigate any hazards in the event of accidental leakage. Welding these gas systems in such a complex environment is no easy task. However, with care, attention to detail and the right equipment, this task can be accomplished successfully.   Manufacturing gas distribution systems in the semiconductor industry The materials used in semiconductor gas distribution systems are highly variable. They can include things like PTFE-lined metal pipes and hoses to resist highly corrosive gases. The most common material used for general purpose piping in the semiconductor industry is 316L stainless steel - a low carbon stainless steel variant. When it comes to 316L versus 316, 316L is more resistant to intergranular corrosion. This is an important consideration when dealing with a range of highly reactive and potentially volatile gases that can corrode carbon. Welding 316L stainless steel releases less carbon precipitates. It also reduces the potential for grain boundary erosion, which can lead to pitting corrosion in welds and heat affected zones. To reduce the possibility of piping corrosion leading to product line corrosion and contamination, 316L stainless steel welded with pure argon shielding gas and tungsten gas shielded weld rails is the standard in the semiconductor industry. The only welding process that provides the control needed to maintain a high purity environment in process piping. Automated orbital welding is only available in semiconductor gas distribution

Due to its inert nature, gaseous nitrogen can be used in a variety of purging, covering and flushing operations. Depending on the type of process involved, different levels of nitrogen purity are required to meet unique manufacturing needs.   What is Nitrogen Purity?   Nitrogen purity is the percentage of nitrogen present in a sample taken from its stream compared to the impurities present. Nitrogen can be classified as high or low purity based on the ratio of pure gas to contaminants such as oxygen, water vapor, carbon monoxide and carbon dioxide.   This classification based on nitrogen concentration plays a key role in determining the suitability of nitrogen for any industrial process.   High Purity vs. Low Purity Nitrogen   The purity of a nitrogen sample is determined by the percentage/concentration of pure nitrogen in it. For a gas to be categorized as high purity, it must contain at least 99.998% nitrogen, whereas lower purity nitrogen typically contains a higher percentage of impurities. High Purity Nitrogen   Gaseous nitrogen with a concentration above 99.998% is considered a high purity fraction. High purity nitrogen can be graded in different ways by different manufacturers, but they are mostly considered "zero grade" fractions. Zero-grade high-purity nitrogen is categorized as such because they contain hydrocarbon impurities of less than 0.5 parts per million.   Other key characteristics of high purity nitrogen are:   Oxygen concentration ≤ 0.5 ppm   Carbon monoxide/carbon dioxide not more than 1.0 ppm   Moisture not greater than 3 ppm   Low purity nitrogen   Nitrogen with a purity of 90% to slightly less than 99.9% is considered low purity.   Nitrogen Purity Classification   The classification of pure nitrogen is accomplished through a grading system using numbers within each lowest purity grade. The first number of each grade refers to the number of "nines" that appear within it, while the second number represents the number after the last nine digits.   Purity grades of nitrogen are categorized as N2.0, N3.0, N4.0, N5.0, N6.0, and N7.0.   What is ultra-high purity nitrogen?   Ultrahigh-purity nitrogen is nitrogen with a concentration of 99.999% and negligible impurities. Nitrogen specifications are stringent and variations invalidate the classification.   The gas must not contain more than two parts per million by volume (ppmv) of oxygen, 0.5 parts per million by volume of total hydrocarbons, and one part per million by volume of moisture). Nitrogen is commonly used for scientific applications.   What is oxygen-free nitrogen?   Oxygen free nitrogen (OFN) is defined as gaseous nitrogen containing no more than 0.5 parts per million (ppm) of oxygen. OFN gases are typically maintained at 99.998% purity. This grade of nitrogen is used in scientific research and calibration processes where oxygen impurities may alter results or cause incorrect results. Nitrogen Purity Levels by Industry/Application   As mentioned above, the concentration of nitrogen required for different industrial processes varies greatly. The key consideration in selecting a nitrogen grade is the effect of impurities on the chosen application. Sensitivity to moisture, oxygen and other contaminants are key factors to consider.   Food Grade Nitrogen / Beverage Grade Nitrogen   Nitrogen is commonly used in different steps of food/beverage production, packaging and storage. Nitrogen in food packaging and processing is used to maintain the shelf life of processed foods/beverages by eliminating food oxidants, preserving flavor and preventing rancidity. The purity required for food grade nitrogen is typically in the range of 98-99.5%.   Pharmaceutical Grade Nitrogen   Pharmaceutical manufacturing processes require high purity to prevent contamination and alteration of the final product. Many pharmaceuticals require high grade nitrogen with purities between 97-99.99%. This high to ultra-high purity nitrogen is used to cover nitrogen tanks, containers and other drug manufacturing equipment.   High purity nitrogen is also used in pharmaceutical packaging to help maintain freshness and prevent deterioration of active ingredients.   Gaseous nitrogen with 95-99% purity is used in the oil and gas industry to reduce the risk of fire and explosion during the process. Inerting chemical storage tanks and purging pipelines with gaseous nitrogen helps minimize the risk of sudden combustion of their contents.   Pipeline maintenance services often use pressurized nitrogen for pipeline cleaning and pipeline decommissioning processes.   Industrial Nitrogen Grade Purity   Some industrial applications and their nitrogen grade requirements are outlined below.   Electronics and Semiconductor Manufacturing Grade Nitrogen   Typical nitrogen content requirements in electronics and semiconductor manufacturing are usually at least 99.99-99.999%. Some processes such as parts cleaning and adhesive coverage use lower concentrations of nitrogen (95-99.5%).   Plastics Manufacturing Grade Nitrogen   Nitrogen grade requirements for plastics synthesis are 95-98% for injection molding, 99.5% for gas-assisted injection molding, and 98-99.5% for blown film extrusion.   Metal processing grade nitrogen   The nitrogen content of metal processing grade varies greatly, from 95-99% for heat treatment to 99-99.999% for laser cutting process.   Power generation grade nitrogen   Nitrogen in the 95-99.6% range is required for power generation processes such as air seal blowdown, boiler lining, natural gas pipeline blowdown and water softening overlay.

Ultra-high purity gases are essential throughout the semiconductor supply chain. In fact, for a typical fab, high-purity gases are the largest material expense after silicon itself. In the wake of the global chip shortage, the industry is expanding faster than ever - and the demand for high purity gases is increasing. The most commonly used bulk gases in semiconductor manufacturing are nitrogen, helium, hydrogen and argon.   Nitrogen   Nitrogen makes up 78% of our atmosphere and is extremely abundant. It also happens to be chemically inert and non-conductive. As a result, nitrogen has found its way into a number of industries as a cost-effective inert gas. The semiconductor industry is a major consumer of nitrogen. A modern semiconductor manufacturing plant is expected to use up to 50,000 cubic meters of nitrogen per hour. In semiconductor manufacturing, nitrogen acts as a general purpose inerting and purging gas, protecting sensitive silicon wafers from reactive oxygen and moisture in the air.   Helium   Helium is an inert gas. This means that, like nitrogen, helium is chemically inert - but it also has the added advantage of high thermal conductivity. This is particularly useful in semiconductor manufacturing, allowing it to efficiently conduct heat away from high-energy processes and help protect them from thermal damage and unwanted chemical reactions.   Hydrogen   Hydrogen is used extensively throughout the electronics manufacturing process, and semiconductor production is no exception. In particular, hydrogen is used for:   Annealing: Silicon wafers are typically heated to high temperatures and slowly cooled to repair (anneal) the crystal structure. Hydrogen is used to transfer heat evenly to the wafer and to assist in rebuilding the crystal structure.   Epitaxy: Ultra-high purity hydrogen is used as a reducing agent in the epitaxial deposition of semiconductor materials such as silicon and germanium.   Deposition: Hydrogen can be doped into silicon films to make their atomic structure more disordered, helping to increase resistivity.   Plasma Cleaning: Hydrogen plasma is particularly effective in removing tin contamination from light sources used in UV lithography.   Argon   Argon is another noble gas, so it exhibits the same low reactivity as nitrogen and helium. However, argon's low ionization energy makes it useful in semiconductor applications. Because of its relative ease of ionization, argon is commonly used as the primary plasma gas for etch and deposition reactions in semiconductor manufacturing. In addition to this, argon is also used in excimer lasers for UV lithography.   Why purity matters   Typically, advances in semiconductor technology have been achieved through size scaling, and the new generation of semiconductor technology is characterized by smaller feature sizes. This yields multiple benefits: more transistors in a given volume, improved currents, lower power consumption and faster switching.   However, as the critical size decreases, semiconductor devices become increasingly sophisticated. In a world where the position of individual atoms matters, fault tolerance thresholds are very tight. As a result, modern semiconductor processes require process gases with the highest possible purity. WOFLY is a high-tech enterprise specializing in gas application system engineering: electronic special gas system, laboratory gas circuit system, industrial centralized gas supply system, bulk gas (liquid) system, high purity gas and special process gas secondary piping system, chemical delivery system, pure water system to provide a full set of engineering and technical services and ancillary products from the technical consulting, overall planning, system design, selecting the equipment, prefabricated components, the installation and construction of the project site, the overall system testing, maintenance and other supporting products in an integrated manner.

Organized by Shenzhen Overseas Chinese Entrepreneurs Think Tank Research Institute, Malaysia Chiu Chow Chamber of Commerce and Industry and Guangdong Qidian Group, the "Overseas Chinese Entrepreneurs Fair 2023 (Kuala Lumpur) Smart Technology Exhibition" will be held at the World Trade Center in Kuala Lumpur, Malaysia from June 16 to 18, with more than 2,000 new Chinese technology products on display. 6.24 - 6.26 The Smart Tech Expo in Bangkok, where Chinese exhibitors will discuss the market and opportunities for smart technology products with Thai businessmen. During the exhibition, hundreds of Chinese smart new energy products and technologies will be presented. Driven by the policy and market in China and Malaysia, the commercialization of new energy storage is accelerating and has huge commercial development space. This exhibition will gather cutting-edge trends and product information of new energy storage industry and help industry partners to find suitable upstream and downstream suppliers. For traditional factories and related industrial fields in urgent need of technological transformation and upgrading of buyers, this exhibition is full of attractions, many safety and automation equipment, electronic gas automation system, automated machinery and energy-saving equipment suppliers will appear at the exhibition, showing all kinds of automation, precision and intelligent industrial solutions. As a professional gas application system integrator with a good reputation in China, its business covers: ultra-high purity electronic special gas system, laboratory gas system, bulk gas (liquid) system, industrial centralized gas supply system, special process gas secondary piping system, chemical delivery system, pure water system, providing technical consultation, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance and other complete engineering services and supporting products, The project covers semiconductor, integrated circuit, flat panel display, photoelectric, new energy, nano, optical fiber, microelectronics, petrochemical, biomedical, various laboratories, research institutes, standard testing and other high-tech industries to provide customers with a full set of high-purity media delivery system Solutions; gradually become the industry's leading overall system supplier. This exhibition, the key exhibits have domestic independent research and development and production of ultra-high purity BA/EP grade diaphragm valves, regulators in the Malaysian market and Southeast Asian market for nearly 10 years of sales test, deep customer trust. At the same time the application of the domestic semiconductor and photovoltaic enterprises has been recognized and respected by the majority of customers. Realize the first choice of high-quality domestic products to replace imported products, but also for the Chinese manufacturing in overseas markets to add a new business card. On-site customers gave very high attention to the product's, the organizer interviewed Wofei Technology on site, Mr. He described the product's market in Malaysia and the strategic route of Belt and Road to the reporter, and elaborated on the price and quality of our products, expressing confidence in the overseas market. The interview was then reported in the relevant media. Woflyi Technology products in Southeast Asia and Russia received many customers like, in order to more in-depth understanding, overseas customers have come to China to visit and exchange. Group photo of Russian customers                                      Group photo of Malaysian customers in Hunan branch For this reason, Wofei makes extra efforts to do every detail of each high purity gas valve fittings to ensure the safety and reliability of each application scenario. As well as high cleanliness VCR micro-welded fittings, secondary valve fittings, hydrogen energy valves, etc.; special gas equipment and fittings (GC/GR/VMB/VMP/VDB/VDP/gas sink switching device) are exhibited in this exhibition, specific details can search the official website of Wolfei Technology to learn more.

AFKLOK helps the third generation of electronic semiconductor high-speed development, a comprehensive display of technology and products, 5/16-18 Shenzhen International Semiconductor Exhibition 16C051 and so you visit!   The fifth Shenzhen International Semiconductor Technology and Application Exhibition was officially opened on May 16 at Shenzhen International Convention and Exhibition Center (Baoan New Hall) / Hall 14 & Hall 16. SEMI-e Shenzhen Semiconductor Exhibition plunges deep into the field of semiconductor industry, focuses on the core technology and development trend of the industry, and contributes to the construction of a modern industrial system with international competitiveness in Guangdong, Hong Kong and Macao Greater Bay Area by building a professional and high-end industrial ecological exchange platform. As a key national development industry, the semiconductor industry is booming, and in the production process of semiconductor products, only by ensuring the stability of the packaging quality can we guarantee the final yield and reliability of integrated circuits. In order to ensure the quality of packaging, in addition to the need for advanced production lines, both the development and production of chips and components packaging, are inseparable from the safe and reliable electronic special gas system.   As a high-tech enterprise integrating engineering services and supporting products from technical consultation, overall planning, system design, selected equipment, prefabricated components, project site installation and construction, overall system testing, maintenance and other engineering services, AFKLOK Technology can provide customers with: electronic special gas systems, laboratory gas circuit systems, industrial centralized gas supply systems, bulk gas (liquid) systems, high-purity gases and special process gases Secondary piping system, chemical transportation system, pure water system and other gas application projects. AFKLOK Technology has excellent design and manufacturing experience in gas piping engineering valve fittings, so the brand reputation, products and services have consistently reaped high praise. Special gas system is a system used to ensure the safe use of special gases. It is used in the fields of semiconductor, electronics, liquid crystal, photovoltaic and solar cell industries, etc. The production process in the semiconductor industry is crucial, but most of the special gases are dangerous gases, such as SiH4, NF3, etc.. Therefore, to ensure the safe use of special gases is the meaning of special gas system. The special gas system consists of three parts: special gas equipment, special gas pipeline and terminal, and the special gas cabinet is the core equipment of the special gas system.   AFKLOK's fully automatic gas cabinet with PLC as the main control body, with touch screen for system display and setting, with different plate design to meet the needs of the solar energy, semiconductor industry, and has: simple operation, high compatibility of control software, high system stability, full alarm record function, etc. The special gas cabinet can support the network or wiring two ways to signal output, the gas cylinder cabinet control system can be All the status, including operation condition alarm information, pressure value when supplying gas, etc., can be uploaded to the central control by network or hardware. The gas cabinet control system (hydrogen control system) can be operated and controlled remotely by means of the network, increasing the convenience and safety of operation. Special gas system engineering is an important and dangerous project, special gas cabinet is the core equipment of most of the functions, special gas system engineering is incomplete without special gas cabinet. AFKLOK technology to help the majority of customers in the production process to solve the operational convenience and safety issues difficult to combine the difficulties, from product quality to business planning to make a comprehensive effort to gradually break through the difficulties, to achieve the aggregation of quality services, to provide a one-stop service program to meet different application scenarios, suitable for differentiation, for the growth of enterprise productivity to push the wave.   AFKLOK independently developed regulators, diaphragm valves are used in various fields and are respected by customers. For a long time, AFKLOK Technology has been deeply understanding the market demand, taking technical innovation as a strong support, cultivating the industry, constantly innovating and upgrading technology and process, adapting to the gradually developing market demand for new technology with high quality products and innovative technology. In the era of rapid development of the industry, higher product quality is an important factor for enterprises to enhance their core competitiveness. Wofei Technology also truly recognizes that quality is the cornerstone of enterprise survival and safety is the guarantee of company development. Wofei Technology is dedicated to professionalism, responsibility and integrity, and is determined to become a leading high-end intelligent gas delivery system integrator in the high-purity gas industry.  

We are pleased to offer AFKLOK two ferrule compression tube fittings at Fluid Controls. These incredibly flexible tube fittings come in a variety of diameters and corrosion-resistant materials, offer remarkable leak-free couplings, and are extremely adjustable. Afklok Tube Fittings Wofly’s Afklok tube fittings are made to offer trustworthy leak-free connections for applications involving instrumentation, process and control, and analyzers. These tubefittings are produced to the highest quality standards and come in a variety of sizes, corrosion-resistant materials, and combinations. Afklok collection of tube fittings from the manufacturer is made of heat-code-traceable 316 stainless steel as standard. 6Mo, Alloy 825, Alloy 625, and Alloy C-276 are more materials. While curved bodies are machined from close grain forgings, straight fittings are produced from cold-finished bar stock. The tube fittings come in imperial sizes ranging from 1/16" to 2" O.D. and metric sizes ranging from 2 mm to 25 mm O.D. 1) male pipe to a tube. 2) Male pipe to female tube 3) tubes joined together. 4) connections for ports. 5) flare (AN) to A-LOK at 37. 6) O-ring to tube seal 7) systems welded to tubes. 8) Fittings for analysis. 9) Barbed fittings. Wofly can help you secure your order. Wofly is a manufacturing company of high-quality instrumentation and pressure control equipment in the China, and it own brands eg. AFK, Afklok, Wofly. Call +86-755-27919860 or send an email to info@szwofly.com to speak with a Fluid Controls expert about all of your fittings needs right away.