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Dongguan Chun Yip Electronic Technology Co.,Ltd.

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New Information

Membrane switch introduces double board and double panel structure of fpc circuit board

From:admin Date: 2019-07-11
The membrane switch made by fpc circuit board has a long service life and good quality, which is more expensive than other membrane switches. After all, a penny of goods, a good membrane switch, the price is of course more expensive than the ordinary membrane switch to highlight its value. So, what is the double-layer and double-panel structure of the fpc board?

First, the structure of the fpc double-layer board of the membrane switch is introduced. If the circuit of the circuit is too complicated, if the single-layer board cannot be wired or copper foil is required for ground shielding, it is necessary to select a double-layer board or even a multi-layer board. A typical difference between a multi-layer board and a single-layer board is the addition of a via structure to join the layers of copper foil. Generally, the processing technology of the substrate, the transparent glue and the copper foil is to make a via hole. First, the substrate and the copper foil are drilled, and after cleaning, a certain thickness of copper is plated, and the via hole is completed. Then, it is punched into a small circuit board of a corresponding shape, and the solder resist layer is directly printed on the copper foil without using a protective film, so that the cost is lower, but the mechanical strength of the circuit board becomes worse, so that the production is made. The quality of the membrane switch will also be poor, unless the strength requirements are not high but the price needs to be as low as possible, it is the application of the protective film. Both sides of the double panel have pads that are primarily used for connections to other boards. Although it is similar to the single-layer structure, the manufacturing process is very different. Its raw materials are copper foil, protective film and transparent glue. First, drill holes on the protective film according to the position of the pad, then paste the copper foil, etch the pads and leads, and then attach another protective film with holes. In fact, the production of fpc circuit boards is almost the same, only minor changes.
Only with the exquisite circuit board, will there be a delicate membrane switch, Chuangming is not looking for, but a membrane switch to give users a better experience. If you trust Chuangming, if you are willing to let Chuangming create your own membrane switch, then contact Chuangming, give you worry-free service, please call 0769-85382422 or visit Click on the website online customer consultation, right away Customized products for you: membrane switch, membrane button, film panel, silk screen panel, acrylic panel silk screen, film button panel, film line printing

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