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What are the problems encountered in the design of membrane switch circuits?

- Apr 18, 2018 -

What are the problems encountered in the design of membrane switch circuits?


What are the problems encountered in the design of membrane switch circuits?

Membrane switches are composed of multiple layers of thin films. They use different material properties and play different roles to complete the function of thin film switches on electrical products. The circuit layer is the main functional layer of thin film switches and it is in accordance with the requirements of circuit products. The electronic circuit designed for the function.

Membrane switches, also called touch-type keyboards, use a flat and multi-layered integrated sealing structure, which is a type of integrated light, machine and electricity that seals key switches, panels, marks, symbol displays, and liners together. The new electronic components are fundamental changes in the appearance structure of electronic products. They can replace the buttons of conventional discrete components and perform the tasks of the operating system more reliably.

The common problems in membrane switch circuit design are as follows:

1. The shrapnel of the membrane switch bulge button needs to be placed properly, and there can be no offset, otherwise it will affect the operation of the button to failure.

2. Color problem: The modulation ratio of ink is the main cause of serious color deviation. There are also strict color requirements and too small color range. These factors are difficult to control in any industry.

3, button bulge position, you need to open the mold to a suitable location, otherwise it will affect the appearance of the button, gum is not sticky, in addition to the choice of raw materials, but also to confirm the shape of a good prototype, if the prototype has a groove you need to choose the quality Good viscose, gum can be selected as appropriate.


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