HMC7992LP3DETR Manufacturers

Double-sided PCB is a very important PCB board in the circuit board, usually made of epoxy glass cloth copper clad board.

There are many forms of matter, such as solid, liquid, gas, plasma and so on. We usually call materials with poor conductivity, such as coal, artificial crystal, amber, ceramics and so on, insulators. Metals with good conductivity, such as gold, silver, copper, iron, tin and aluminum, are called conductors. The material between conductor and insulator can be simply called semiconductor. Compared with conductors and insulators, the discovery of semiconductor materials is the latest. Until the 1930s, when the purification technology of materials was improved, the existence of semiconductors was really recognized by the academic community.

We usually refer to metals with good conductivity such as gold, silver, copper, iron, tin and aluminum as conductors. At the same time, materials with poor conductivity, such as coal, artificial crystals, amber, ceramics, etc., are called insulators. Then, we can simply call the material between the conductor and the insulator semiconductor.

Due to the continuous introduction of thin, light and short products in the market, the high-function, high-speed and other double-height era has been developed, and the trend of high-frequency, high-speed, and multi-IO chips has been developed.

Cutting, fillet, edge grinding, baking, inner pretreatment, coating, exposure, DES (development, etching, film removal), punching, AOI inspection, VRS repair, browning, lamination, pressing, drilling target, gong edge, drilling, copper plating, film pressing, printing, text, surface treatment, final inspection, packaging, and other processes are extremely numerous. It sounds great, but the process is so long, and there are many problems to pay attention to.

Electronic products should use PCB. PCB (printed circuit board) is used in almost all electronic products and is considered as the "mother of electronic system products".