source:Industry News release time:2022-10-10 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 as follows:
Fiberglass cloth: Fiberglass cloth is one of the raw materials of CCL, which is woven from glass fiber yarn, accounting for about 40% (thick plate) or 25% (thin plate) of the cost of CCL. Glass fiber yarn is calcined into a liquid state from raw materials such as silica sand in a kiln, pulled into extremely fine glass fiber through a very small alloy nozzle, and then twisted into glass fiber yarn by hundreds of glass fibers. The construction investment of the kiln is huge, usually hundreds of millions of funds, and once it is ignited, it must be produced 24 hours a day, 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 CCL, accounting for about 30% (thick plate) or 50% (thin plate) of the cost of CCL, so the price increase of copper is the main driving force for the price increase of CCL.
Copper clad laminate: The copper clad laminate is the product of pressing the glass fiber cloth and copper foil together with epoxy resin as a fusion agent. It is the direct raw material of the printed circuit board. into a printed circuit board.
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