Damage condition 1. Static electricity burned out. Because LED is an electrostatic sensitive component, if the electrostatic protection work is not done well in the production process, the LED chip will be burned out due to static electricity, which will cause the false death of the LED strip.
Repair countermeasures: The measure to prevent this phenomenon is to strengthen electrostatic protection. All employees who come into contact with LEDs must wear anti-static gloves and electrostatic rings in accordance with regulations. Tools and instruments must be grounded.
Damage condition 2. High temperature damage. The high temperature resistance of LED is not good. Therefore, if the welding temperature and welding time of the LED are not well controlled during the production and maintenance process, the LED chip will be damaged due to the ultra-high temperature or continuous high temperature, which will cause the LED strip to be damaged. Feign death.
Repair countermeasures: The measures to prevent this phenomenon are to do a good job in the temperature control of reflow soldering and soldering iron, and implement special personnel responsible for special file management; the soldering iron uses a temperature-controlled soldering iron to effectively prevent the soldering iron from burning out the LED chip at high temperature.
Damage condition 3. Moisture burst at high temperature. If the LED package is exposed to the air for a long time, it will absorb moisture. If it is not dehumidified before use, it will cause the moisture in the LED package to expand due to the high temperature and long time period during the reflow soldering process. The LED package bursts, which indirectly causes the LED chip to be overheated and damaged.
Repair countermeasures: The storage environment of the LED should be constant temperature and humidity. The unused LED must be baked in an oven at about 80° for 6~8 hours for dehumidification before the next use to ensure that the used LED will not have Moisture absorption phenomenon.
