With the rapid development of mobile phone, electronics, communication industries, etc., it also promotes the continuous expansion and rapid growth of PCB circuit board industry, people's requirements for the number of layers, weight, precision, material, color, reliability, etc. Come higher.

However, due to the fierce price competition in the market, the cost of PCB board materials is also on the rise, and more and more manufacturers are monopolizing the market at low prices in order to enhance their core competitiveness. However, these ultra-low-cost backs are obtained by reducing material costs and process manufacturing costs, but the devices are generally prone to cracks (cracks), easy scratches, (or scratches), and their precision, performance and other comprehensive factors are not qualified. , which seriously affects the solderability and reliability of the products used.

Faced with a variety of PCB circuit boards on the market, Baineng.com can distinguish the quality of PCB circuit boards from two aspects; the first method is to judge from the appearance, and the other is to judge from the quality standard requirements of the PCB board itself. PCB circuit board