How Much Do You Know About PCB Classification?!
PCBs come in a wide variety of materials, layer counts, and manufacturing processes to accommodate different electronic products and their specific requirements, resulting in numerous classifications. Below, we summarize some common classification methods to briefly introduce PCB types and their manufacturing processes. Let’s analyze this from three perspectives. I. Materials 1. Organic Materials: ① Phenolic Resin: Phenolic resin, also known as Bakelite or Bakelite powder, is originally a colorless or yellowish-brown transparent substance. When sold on the market, it is often mixed with colorants to produce red, yellow, black, green, brown, blue, and other colors, and is available in granular or powdered forms. Phenolic resin is resistant to weak acids and weak alkalis; it decomposes when exposed to strong acids and corrodes when exposed to strong alkalis. It is insoluble in water but soluble in organic solvents such as acetone and alcohol. It is obtained through the polycon...