Material thickness and structure of Membrane Switch

Membrane Switch additionally referred to as a lightweight bit keyboard, adopts the general protection structure composed of plane and multi-layer combination. New electronic elements are an elementary amendment to the look and structure of the electronic product. They will replace the buttons of typical separate elements and perform the tasks of the software system additional dependably. What's the material thickness and structure of the Membrane Switch? Let's take a glance.

Here is the content:

Material thickness

Structure

Material thickness

The thickness of the plastic substrate is 0.25mm and below is named the film, which is especially used because of the panel layer of the Membrane Switch. Numerous indicative patterns and texts are written on the rear to point to the operation space of the corresponding switch key. The thickness ought to be designated per the reckoning on the dimensions of the panel and buttons, the thick material can increase the bit force and cause a slow response; if the fabric is just too skinny, the hand feel is poor once touched, and also the rebound isn't obvious. A Membrane Switch with a thickness of 0.25mm or additional is named a plate, that isn't appropriate for three-dimensional key forming. It will be used as an associate degree indicative sign panel for the realm while not key operation, and might even be used as a backing plate for the Membrane Switch to enhance its hardness.

Structure

1. Panel layer

The versatile Membrane Switch panel layer is usually the product of exquisite patterns and characters by silk-screen printing on PET, PC, and alternative colorless light-transmitting sheets but 0.25MM. It's the characteristics of high transparency, high ink adhesion, high snap, and high toughness.

2. Top layer

The main operation of the surface glue is to closely connect the panel layer and also the circuit layer to attain the impact of projection and association. This layer typically needs a thickness between 0.05-0.15MM, with high body and anti-aging properties; in production, Generally, a special double-sided adhesive for Membrane Switches is employed. Some Membrane Switches are needed to be waterproof and high-temperature resistant, and the surface adhesive should even be the product of totally different materials per desires.

3. Negative feedback circuit higher and lower layers

This layer uses polyester film with smart performance because the carrier of the Membrane Switch circuit pattern uses a special method to screen-print conductive silver paste and conductive carbon paste on that to form it conductive. Its thickness is usually at intervals of 0.05-0.175MM, the foremost common is 0.125MM PET.

4. Sandwich layer

It is set between the higher circuit and also the lower circuit layer of the Membrane Switchand plays the role of protection and connecting. Generally, PET double-sided tape is employed, and its thickness varies from 0.05 to 0.2MM; the merchandise ought to be thought of once choosing the fabric of this layer the general thickness, insulation, circuit key pack feel, and tightness.

5. Back glue layer

The use of back glue is closely associated with what quiet material the Membrane Switch is connected to common double-sided adhesives, 3M adhesives, waterproof adhesives, etc. are unremarkably used.

The above is about the material thickness and structure of the Membrane Switch. If you're interested in Membrane Switch and Shielding Membrane Switch, you can contact us. Our website is www.kkeyboards.com. I look forward to your arrival very much and hope to cooperate with you.