Many people have encountered the problem of LED leakage. Some are found during production testing, and some are found when customers use them. The timing of leakage also varies. Some are tested after the LED package is completed, some appear after being placed in the warehouse for a period of time, some appear after aging for a period of time, some appear after customer welding, and some appear after customer use for a period of time.

The specific cause of the LED leakage problem has been troubling the engineers of the packaging plant. Many people believe that the reasons for LED leakage are as follows

Electrostatic damage, wafer leakage, silver glue problems, wire bias welding, electrostatic breakdown leakage during transportation, improper debugging of the packaging platform or packaging is believed to cause leakage of the finished product.

Looking at the conclusions on the Internet, most people attributed the cause of LED leakage to electrostatic damage. Their proposed solution is to emphasize anti-static measures. This makes the packaging factory and the user very difficult. Because even if they do a good job of anti-static measures, LED leakage phenomenon will still exist. So, what is the cause of LED leakage? At present, the most likely causes of LED leakage are the following (in order of likelihood) :

1. The chip is tainted (the most important and highest problem)

2. The silver glue is too high

3, line bias welding

4. Stress

5. Improper use

6, the chip itself leakage

7. Improper process causes chip cracking

8. Static electricity

9. Other reasons