Chip with program

1. EPROM chip should not be damaged generally. Because this chip needs ultraviolet light to erase the program, it will not be damaged in the test
WiFi microscope for circuit board detection
WiFi microscope for circuit board detection
Preface. But there is information introduction: due to the materials used to make the chip, it may be damaged (mainly refers to the program) even if it is not used over time (years). Therefore, backup should be provided as much as possible
2. EEPROM, sprom, etc. and RAM chips with batteries are very easy to destroy the program. Whether such chips destroy the program after VI curve scanning with < tester > has not been determined. Nevertheless, colleagues should be careful when encountering this situation. The author has done many tests, and the main reason may be: maintenance tools (such as tester, Caused by electric leakage in the shell of electric soldering iron, etc
3. Do not easily remove the chip with battery on the circuit board