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We try for excellence, services the customers”, hopes to become the ideal cooperation team and dominator company for staff, suppliers and buyers, realizes value share and continuous marketing for China Circuit Board, FPC Board, If you are for any reason unsure which product to select, do not hesitate to contact us and we will be delighted to advise and assist you. This way we are going to be providing you with all the knowledge needed to make the best choice. Our company strictly follows “Survive by good quality, Develop by keeping good credit. ” operation policy. Welcome all the clients old and new to visit our company and talk about the business. We’ve been looking for more and more customers to create the glorious future.
Metallization of through-holes.
After drilling， layers have not been connected yet.Flexible pcb manufacturer need to create a conductive layer on the wall of the holes.The plating through-hole processes are just for PCB with two or more layers.
When circuits are too complex for single layer wiring or copper foil is needed for grounding shielding, double-layer or even multilayer boards are needed. The most typical difference between a laminate and a monolayer is the addition of a through-hole structure to connect the layers of copper foil. General substrate + transparent adhesive + copper foil the first processing process is the production of holes. First in the substrate and copper foil drilling, cleaning and plating a certain thickness of copper, and then through the hole is finished. And the next process is almost identical to that of a single board.