source:Industry News release time:2022-11-21 Article author:yu Popular:pcb
According to the upstream and downstream of the industrial chain, it can be divided into raw materials, copper clad laminates, printed circuit boards, electronic product applications, etc. The relationship is simple as follows:
Glass fiber cloth: glass fiber cloth is one of the raw materials of copper clad laminate, which is woven from glass fiber yarn, accounting for 40% (thick plate) or 25% (thin plate) of the cost of copper clad laminate. Glass fiber yarn is calcined into liquid state from silica sand and other raw materials in the kiln, pulled into very fine glass fiber through a very small alloy nozzle, and then hundreds of glass fibers are twisted into glass fiber yarn. The construction investment of the kiln is huge, which generally requires hundreds of millions of funds. Once the kiln is ignited, it must be produced 24 hours without interruption, and the cost of entry and exit is huge.
Copper foil: copper foil is the raw material that accounts for the largest proportion of the cost of copper clad laminate, accounting for about 30% (thick plate) or 50% (thin plate) of the cost of copper clad laminate. Therefore, the price rise of copper is the main driving force for the price rise of copper clad laminate.
Copper clad plate: copper clad plate is the product of pressing glass fiber cloth and copper foil together with epoxy resin as the fusion agent. It is the direct raw material of printed circuit board, and is made of printed circuit board after etching, electroplating and multilayer board pressing.
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