Nowadays, electronic products often fail to function properly due to damage to one integrated circuit, which affects the normal use of the equipment. So how to detect the quality of integrated circuits? The main methods for detecting the quality of integrated circuits include visual inspection, sensing, voltage detection, resistance detection, current detection, signal injection, substitution, heating and cooling, boosting or lowering, and comprehensive methods. Let's take a look at the summary of methods for judging the quality of integrated circuits! Usually, there are many integrated circuits in a device. When receiving a faulty integrated circuit device, the first step is to determine the general location of the fault based on the fault phenomenon. Then, through measurement, the possible location of the fault is gradually reduced, and finally the fault is located. The visual inspection method is to observe whether the appearance of an integrated circuit is different from normal through the eyes, in order to determine whether the integrated circuit is damaged. Its main maintenance skill is to see which appearance is damaged. The normal appearance of an integrated circuit is clear handwriting, undamaged material, smooth surface, and rust free pins. The damaged surface of an integrated circuit is cracked, cracked, or scratched, with small holes on the surface. Missing corners, missing blocks, etc