source:Industry News release time:2021-11-16 Article author:sznbone Popular:pcb
PCB copper clad laminate is a product made of wood pulp paper or glass fiber cloth as a reinforcing material, impregnated with resin, single-sided or double-sided copper clad foil, and hot pressed. When used in the production of multilayer boards, it is also called CORE.
Copper clad laminate is a plate-shaped material formed by impregnating glass fiber cloth or other reinforcing materials with resin, covering one or both sides with copper foil, and hot pressing. Take glass fiber cloth based copper clad laminate as an example. Its main raw materials are copper foil, glass fiber cloth and epoxy resin, which account for about 32%, 29% and 26% of the product cost, respectively.
Copper Clad Laminate (CCL) is the basic material of printed circuit board (PCB), and it is an indispensable component for most electronic products to realize circuit interconnection. In recent years, with the continuous progress of science and technology, some special electronic copper clad laminates can be directly used to manufacture printed electronic components. It can be seen that CCL is an indispensable and important electronic material for all electronic products such as aviation, aerospace, remote sensing, telemetry, remote control, and communications.
PCB substrate is an insulating layer composed of polymer synthetic resin and reinforced materials. The surface of the substrate is covered with a layer of pure copper foil with high conductivity and good solderability, with a thickness of 35 ~ 50/ma. The copper clad laminate with copper foil covering one side of the substrate is called a single-sided copper clad laminate, and the copper clad laminate with copper foil covering both sides of the substrate is called a double-sided copper clad laminate. Whether the copper foil can be firmly coated on the substrate is determined by the adhesive. Commonly used copper clad laminate thicknesses are 1.0 mm, 1.5 mm and 2.0 mm.
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