ESD anti-static knowledge and protection methods analysis
2023-07-25 20:08:50
ESD protection <br> <br> human person can be said to be a high static power, the human body static electricity protection, with a shield and discharge static electricity. Strictly speaking, it is required to be "fully armed", that is, to wear anti-static helmets, anti-static masks, anti-static gloves, finger tips, etc., to wear anti-static clothing, anti-static shoes, but also wear a wrist band, etc. To shield and guide static electricity. In short, try not to expose the skin.
<br> <br> ESD protection of the machine is a high static power machine, because the machine mechanical parts, particularly such as a motor, easy to produce EMI (electromagnetic induction), so the electrostatic protection machine, is necessary. For the electrostatic protection of the machine, it is generally achieved through the elimination of the electromagnetic field, the shielding of the high static part, the grounding of the machine, and the like. Demagnetization is generally used for demagnetization, and ion blowers are used for charge elimination. The degausser is very simple and will not be introduced. Let's take a look at the ion fan. Ion blowers produce rich positive ions and negative ions. Blowing these ions to a highly static object, the object's static electricity will be neutralized. These ions are generated by the ion generating element inside the ion fan and ionize the air. The ion-generating element stimulates air ionization by a low-current, high-voltage transformer. The transformer also contains a current limiting resistor that enhances the stability and safety of ionization. The high-voltage alternating current that acts on the circular circuit of the stainless steel ion emission point forms a strong alternating electric field at the top of the emission point, which is the electric field that ionizes the air to produce the variable pole ion. When the electromagnetic field can not be eliminated or difficult to eliminate, we use static shielding equipment to shield the high electrostatic devices or high electrostatic parts of the equipment, such as motors, we all know that the motor is easy to produce EMI, but the machine must run without motors Therefore, it is not necessary to shield it. There are also worktables, power cords, and computer keyboards that can be used for electrostatic shielding to perform ESD protection. The available shielding products include anti-static mats, anti-static films, anti-static curtains, and anti-static shielding bags. Anti-static tape and so on. Finally, regardless of the machine shielding or degaussing effect, it is necessary to connect the machine to ESD ground.
ESD protection of materials with a very absolute <br> <br> words, if your product is very sensitive to static electricity, so that your line is not high static material arise, especially from areas closer to the product Use anti-static materials as much as possible, such as component boxes, shelves, worktables, transportation equipment, cleaning equipment, chemical reagents, etc. Finally, even your pen and notebook must use anti-static pens and notebooks, because you use When it is pen, it may come into contact with the product. Of course, if your product is not very sensitive to static electricity, you can handle it at your discretion, but it is best to use ESD experiments to prove it and see if you can really rest assured.
ESD Protection Ring <br> <br> a good anti-static work environment for the production is very important, so to establish such an environment generally:
First, establish an ESD safe operation area, that is, an EPA (ESD Protection Area), and it is preferable to attach an ESD protection warning mark to the corresponding position.
Secondly, the installation of the ESD safe operation area, we talk about the anti-static floor system, dust removal system, grounding system and air temperature and humidity. Anti-static floor system, the most important is to lay anti-static flooring on the ordinary floor, generally this floor has anti-static PVC floor, anti-static epoxy floor, etc. For anti-static floor, the requirements must meet the international anti-static Association Standard, of course, anti-static flooring must also be connected to the ESD ground. An ESD-free working environment, so that no dust is a key, because the dust in the air collide with each other in the course of the movement, will also produce ESD, if not dust, then find the cause of ESD problems, It's hard to say. Generally we use the dust removal system to solve this problem. The first requirement is air dust filtration system, such as: air shower, air shower channel, cargo shower room, dust pad, dust roller, air filter, dust-free transfer window, clean room air shower transfer window and so on. Second, as far as possible the establishment of purification lamps, clean room clean glass, clean room color steel ceiling, clean room color steel plate corner, clean room color steel package column and so on.
The selection of the above equipment, all companies should be based on the sensitivity of the product to the ESD, it is best to learn from the views of professionals. A complete ESD protection working environment and the establishment of an independent and perfect ESD grounding system are also very important. In addition, all equipment and work surfaces in the workplace must be connected to the ESD grounding system. In addition, a complete ESD working environment has certain requirements for temperature and humidity. From the perspective of ESD protection, the higher the humidity is, the better, but the humidity is too high and will corrode the equipment. So, generally speaking, 40%-60 The humidity of % is ideal. Of course, companies also have to decide according to the characteristics of their own company's products, after all, this work is more complicated. In addition, ceilings and wall outlets are also set up, and dust collectors are often used to clean the clean rooms.
In this way, with such a working environment, we would like to think about whether the human body's static electricity is dissipated through electrostatic clothes, electrostatic shoes, or through wrist straps, ESD grounding systems, and introduced into the earth. Static electricity in the environment by controlling the temperature and humidity of the air is also dissipated through the floor system and introduced into the earth.
Of course, think about it carefully. The people, machines, and materials in front should be protected by the environment. As long as the work of each link is done well, a complete ESD protection working environment is established. Coupled with a reasonable operation specification, that is, the correct method, it basically passes.
ESD protection of the law <br> <br> talk about law, we must first clear the above four points, in fact law is to establish reasonable approach and specifications to ensure the effective realization of the above four points. In addition, what needs to be supplemented is that when the cause of ESD cannot be clarified, according to the production process, the corresponding ESD experiment should be designed to carefully find the cause of the ESD problem. Ultimately, establish appropriate ESD operating procedures and disciplinary regulations to regulate production.
Of course, after the ESD protection system is established, what the staff has to do is to constantly check this system so as to constantly discover areas of incompleteness and make corresponding improvements to ensure that the system will maintain its ESD for a long period of time. Anti-action. In this way, the establishment of corresponding ESD functional departments, and the continuous development of their professional skills to improve their awareness of ESD protection, are also an integral part of ESD protection.
<br> <br> ESD protection of the machine is a high static power machine, because the machine mechanical parts, particularly such as a motor, easy to produce EMI (electromagnetic induction), so the electrostatic protection machine, is necessary. For the electrostatic protection of the machine, it is generally achieved through the elimination of the electromagnetic field, the shielding of the high static part, the grounding of the machine, and the like. Demagnetization is generally used for demagnetization, and ion blowers are used for charge elimination. The degausser is very simple and will not be introduced. Let's take a look at the ion fan. Ion blowers produce rich positive ions and negative ions. Blowing these ions to a highly static object, the object's static electricity will be neutralized. These ions are generated by the ion generating element inside the ion fan and ionize the air. The ion-generating element stimulates air ionization by a low-current, high-voltage transformer. The transformer also contains a current limiting resistor that enhances the stability and safety of ionization. The high-voltage alternating current that acts on the circular circuit of the stainless steel ion emission point forms a strong alternating electric field at the top of the emission point, which is the electric field that ionizes the air to produce the variable pole ion. When the electromagnetic field can not be eliminated or difficult to eliminate, we use static shielding equipment to shield the high electrostatic devices or high electrostatic parts of the equipment, such as motors, we all know that the motor is easy to produce EMI, but the machine must run without motors Therefore, it is not necessary to shield it. There are also worktables, power cords, and computer keyboards that can be used for electrostatic shielding to perform ESD protection. The available shielding products include anti-static mats, anti-static films, anti-static curtains, and anti-static shielding bags. Anti-static tape and so on. Finally, regardless of the machine shielding or degaussing effect, it is necessary to connect the machine to ESD ground.
ESD protection of materials with a very absolute <br> <br> words, if your product is very sensitive to static electricity, so that your line is not high static material arise, especially from areas closer to the product Use anti-static materials as much as possible, such as component boxes, shelves, worktables, transportation equipment, cleaning equipment, chemical reagents, etc. Finally, even your pen and notebook must use anti-static pens and notebooks, because you use When it is pen, it may come into contact with the product. Of course, if your product is not very sensitive to static electricity, you can handle it at your discretion, but it is best to use ESD experiments to prove it and see if you can really rest assured.
ESD Protection Ring <br> <br> a good anti-static work environment for the production is very important, so to establish such an environment generally:
First, establish an ESD safe operation area, that is, an EPA (ESD Protection Area), and it is preferable to attach an ESD protection warning mark to the corresponding position.
Secondly, the installation of the ESD safe operation area, we talk about the anti-static floor system, dust removal system, grounding system and air temperature and humidity. Anti-static floor system, the most important is to lay anti-static flooring on the ordinary floor, generally this floor has anti-static PVC floor, anti-static epoxy floor, etc. For anti-static floor, the requirements must meet the international anti-static Association Standard, of course, anti-static flooring must also be connected to the ESD ground. An ESD-free working environment, so that no dust is a key, because the dust in the air collide with each other in the course of the movement, will also produce ESD, if not dust, then find the cause of ESD problems, It's hard to say. Generally we use the dust removal system to solve this problem. The first requirement is air dust filtration system, such as: air shower, air shower channel, cargo shower room, dust pad, dust roller, air filter, dust-free transfer window, clean room air shower transfer window and so on. Second, as far as possible the establishment of purification lamps, clean room clean glass, clean room color steel ceiling, clean room color steel plate corner, clean room color steel package column and so on.
The selection of the above equipment, all companies should be based on the sensitivity of the product to the ESD, it is best to learn from the views of professionals. A complete ESD protection working environment and the establishment of an independent and perfect ESD grounding system are also very important. In addition, all equipment and work surfaces in the workplace must be connected to the ESD grounding system. In addition, a complete ESD working environment has certain requirements for temperature and humidity. From the perspective of ESD protection, the higher the humidity is, the better, but the humidity is too high and will corrode the equipment. So, generally speaking, 40%-60 The humidity of % is ideal. Of course, companies also have to decide according to the characteristics of their own company's products, after all, this work is more complicated. In addition, ceilings and wall outlets are also set up, and dust collectors are often used to clean the clean rooms.
In this way, with such a working environment, we would like to think about whether the human body's static electricity is dissipated through electrostatic clothes, electrostatic shoes, or through wrist straps, ESD grounding systems, and introduced into the earth. Static electricity in the environment by controlling the temperature and humidity of the air is also dissipated through the floor system and introduced into the earth.
Of course, think about it carefully. The people, machines, and materials in front should be protected by the environment. As long as the work of each link is done well, a complete ESD protection working environment is established. Coupled with a reasonable operation specification, that is, the correct method, it basically passes.
ESD protection of the law <br> <br> talk about law, we must first clear the above four points, in fact law is to establish reasonable approach and specifications to ensure the effective realization of the above four points. In addition, what needs to be supplemented is that when the cause of ESD cannot be clarified, according to the production process, the corresponding ESD experiment should be designed to carefully find the cause of the ESD problem. Ultimately, establish appropriate ESD operating procedures and disciplinary regulations to regulate production.
Of course, after the ESD protection system is established, what the staff has to do is to constantly check this system so as to constantly discover areas of incompleteness and make corresponding improvements to ensure that the system will maintain its ESD for a long period of time. Anti-action. In this way, the establishment of corresponding ESD functional departments, and the continuous development of their professional skills to improve their awareness of ESD protection, are also an integral part of ESD protection.
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