How to distinguish the good or bad PCB circuit board
PCB circuit boards are seen in almost all electronic products, and those who study IC design know it. The development of science and technology has promoted the continuous growth of the PCB circuit board industry, and people have increasingly higher requirements for the number of layers, precision and reliability of components. There are many types of PCB circuit boards on the market, and it is difficult to distinguish good quality from bad. In this regard, here are a few ways to distinguish between good and bad PCB circuit boards.
1. Appearance of weld
Since there are many PCB circuit board parts, if the welding is not good, the circuit board parts will easily fall off, which will seriously affect the welding quality and appearance of the circuit board, so it is very important that the welding is firm.
2. Standard rules for size and thickness
Since PCB circuit boards have different sizes to the thickness of standard circuit boards, users can measure and check according to their needs.
3. Light and color
Usually the external PCB circuit board is covered with ink for insulation. If the color of the board is not bright and the ink is less, it means that the insulation board itself is not good.