The harm of static electricity in the production process of LED display
In recent years, LED display production technology has gradually matured in China, and its application fields have become widespread and popularized. However, most LED display manufacturers are not fully equipped to produce such products, which brings hidden dangers to LED display products and affects the entire market. How to standardize production, how to produce a true low-attenuation, long-life LED display products? This article only discusses the harm caused by static electricity in the process from the perspective of electrostatic protection in the LED display production process.
The electrostatic voltage is generated by the contact and separation of different kinds of substances. This effect is known as triboelectric charging, and the voltage generated depends on the nature of the material itself that rubs against each other. Since the LED display screen is mainly in the actual production process, the direct contact and indirect contact between the human body and the related components generate static electricity. Therefore, according to the characteristics of the industry, we can do some targeted static precautions.
If you ignore anti-static at any point in production, it will cause the electronic device to malfunction or even damage it.
When semiconductor devices are placed alone or loaded into a circuit, permanent damage to these devices may occur due to static electricity even if power is not applied. As we all know, LED is a semiconductor product. If the voltage between two pins or more pins of the LED exceeds the breakdown strength of the component medium, it will cause damage to the component. The thinner the oxide layer, the greater the sensitivity of the LED and the driver IC to static electricity, such as the lack of solder, the quality of the solder itself, etc., which can cause serious leakage paths and cause devastating damage.
Another type of failure is caused by the temperature of the node exceeding the melting point of semiconductor silicon (1415 ° C). The pulse energy of static electricity can generate localized heat, so there is a direct breakdown of the lamp and the IC. This failure occurs even if the voltage is lower than the breakdown voltage of the medium. A typical example is that the LED is a diode composed of a PN junction, and the breakdown between the emitter and the base causes a sharp drop in current gain. After the LED itself or the IC in the driver circuit is affected by static electricity, functional damage may not occur immediately. These potentially damaged components are usually displayed during use, so the life of the display is affected. It is fatal.The harm of static electricity in the production process of LED display
In recent years, LED display production technology has gradually matured in China, and its application fields have become widespread and popularized. However, most LED display manufacturers are not fully equipped to produce such products, which brings hidden dangers to LED display products and affects the entire market. How to standardize production, how to produce a true low-attenuation, long-life LED display products? This article only discusses the harm caused by static electricity in the process from the perspective of electrostatic protection in the LED display production process.
The electrostatic voltage is generated by the contact and separation of different kinds of substances. This effect is known as triboelectric charging, and the voltage generated depends on the nature of the material itself that rubs against each other. Since the LED display screen is mainly in the actual production process, the direct contact and indirect contact between the human body and the related components generate static electricity. Therefore, according to the characteristics of the industry, we can do some targeted static precautions.
If you ignore anti-static at any point in production, it will cause the electronic device to malfunction or even damage it.
When semiconductor devices are placed alone or loaded into a circuit, permanent damage to these devices may occur due to static electricity even if power is not applied. As we all know, LED is a semiconductor product. If the voltage between two pins or more pins of the LED exceeds the breakdown strength of the component medium, it will cause damage to the component. The thinner the oxide layer, the greater the sensitivity of the LED and the driver IC to static electricity, such as the lack of solder, the quality of the solder itself, etc., which can cause serious leakage paths and cause devastating damage.
Another type of failure is caused by the temperature of the node exceeding the melting point of semiconductor silicon (1415 ° C). The pulse energy of static electricity can generate localized heat, so there is a direct breakdown of the lamp and the IC. This failure occurs even if the voltage is lower than the breakdown voltage of the medium. A typical example is that the LED is a diode composed of a PN junction, and the breakdown between the emitter and the base causes a sharp drop in current gain. After the LED itself or the IC in the driver circuit is affected by static electricity, functional damage may not occur immediately. These potentially damaged components are usually displayed during use, so the life of the display is affected. It is fatal.