1. Understand the working principle of integrated circuits and related circuits before testing. Before inspecting and repairing integrated circuits, you must first be familiar with the functions, internal circuits, main electrical parameters 2020-02-17

The nitrogen cabinet has dehumidification and anti-oxidation functions. You only need to put the IC chip in it, but if it is okay, dont open the cabinet door often. This will make it easier for outside air to enter the cabinet, which will no 2020-02-17

I. Check board method: 1. Observation method: whether there is burning paste, burning out, blistering, board surface disconnection, socket rust. 2. Meter test method: Whether the + 5V, GND resistance is too small (below 50 ohms). 3． Power- 2020-02-17

It should be stored in a metal box to prevent static electricity damage and effectively shield electromagnetic waves and microwaves from harming components. The metal box is best made of copper, followed by aluminum, and iron has the worst e 2020-02-17

Electronic components are a general term for components and devices. Electronic component: refers to a finished product that does not change its molecular composition during factory production and processing. Because it does not generate ele 2020-02-17

1. Monolithic integrated circuit It is a type of integrated circuit that is integrated and indivisible on the silicon wafer (or other substrate) using a semiconductor planar process such as resistors, capacitors, and diodes. So it is called 2020-02-17

The difference between the two is that the chip integrates upper peripheral devices. The CPU does not have peripheral devices (such as memory arrays). It is a highly integrated general-purpose processor. The CPU is a digital chip, which is j 2020-02-17

Imported ICs generally look at the label Date code on the packaging, and those that are not unpacked are generally original. If it is unpacked, the following methods are for reference. The main method to distinguish between genuine and refur 2020-02-17

IC 是芯片的一种， IC 的意思就是集成电路，通常芯片就是指 IC 例外：有的是一个芯片上可以封装，不同的集成电路 2020-02-17

After so many years of development of the integrated circuit market, during the research and development or learning process, it is often necessary to order some chips to meet their own needs. However, there are some specific problems. Altho 2020-02-17