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China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui

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China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui Detail:

PCB Introduction

Flexible membrane keyboard is a typical form of membrane keyboard. This kind of membrane keyboard is called flexible because its mask layer, isolation layer, and circuit layer are all composed of software films with different properties.

The circuit layer of the flexible membrane keyboard uses polyester film (PET) with good electrical properties as the carrier of the switch circuit pattern. Due to the influence of the properties of the polyester film, the film keyboard has good insulation, heat resistance, flexural resistance and high resilience. The graphics of the switch circuit, including the switch connection and its lead wires, are printed with low-resistance, conductive paint that cures under low-temperature conditions. Therefore, the composition of the entire membrane keyboard has a certain degree of flexibility, which is not only suitable for use on a flat body, but can also be matched with a curved body. The lead wire of the flexible membrane keyboard is integrated with the switch body itself. When making the connection of the group switch, it is gathered in a certain place of the membrane and extended outward according to the designated position and standard line distance of the design as a soft , The arbitrarily bendable and sealed lead wire is connected to the rear circuit of the whole machine.


Silver chloride electrode (7)


Silver chloride electrode (8)


Silver chloride electrode (9)


Silver chloride electrode (11)

1. Line switch The line switch is essentially the membrane switch with the panel removed. In some specific occasions, or some users who already have an indicator panel, they don’t need a complete membrane switch, but only the bottom line switch. .

2. Double-sided circuits Double-sided circuits can be divided into two types. One type is printed with wires on both sides. A small hole of about 0.5mm is opened at the connection end of the wire, and conductive material is poured into this hole to make the front face. It is connected with the reverse circuit to achieve the required function; the other structure is mainly that the front printed circuit is in the X axis direction, the back circuit is in the Y axis direction, and the two circuits are not connected to each other. This kind of circuit is mainly used for e-books or other electronics. Similar products with sensing function.

For monolithic circuits with bridges, when two sets of circuits are crossed, UV insulating ink should be screen printed between them. This program will increase the number of screen printings and the cost will also increase. The designer should try to avoid crossing the lines when designing the circuit again.

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Silver chloride electrode (4)


Silver circuit (4)


Silver circuit (5)


Silver circuit (6)


IMG_20210616_214303


IMG_20210616_215859


IMG_20210616_215915


J65A9398


Product detail pictures:

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures

China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui detail pictures


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With our rich experience and considerate services, we have been recognized as a reliable supplier for many international buyers for China Cheap price Electronic Audio Wall Chart Circuit - Silver circuit (Silver paste line) – Xinhui , The product will supply to all over the world, such as: Jordan, Libya, Seattle, We've got constructed strong and long co-operation relationship with an enormous quantity of companies within this business overseas. Immediate and specialist after-sale service supplied by our consultant group has happy our buyers. In depth Info and parameters from the merchandise will probably be sent to you for any thorough acknowledge. Free samples may be delivered and company check out to our corporation. n Portugal for negotiation is constantly welcome. Hope to get inquiries type you and construct a long-term co-operation partnership.
  • This company has a lot of ready-made options to choose and also could custom new program according to our demand, which is very nice to meet our needs.
    5 Stars By Jason from Curacao - 2017.04.08 14:55
    We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!
    5 Stars By Athena from Liberia - 2018.10.09 19:07
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