Csutom Rear Surface Printing ESD Shielding Mebrane Switch Button With Flat Keys
LECTROSTATIC DISCHARGE
Electrostatic discharge (ESD) is a short but intense flow of electricity when two electronically charged objects come in contact. In a device with a membrane switch interface, this can happen when the user presses down a button. As you can imagine, ESD can damage sensitive circuitry and other components within the device.
SOLUTIONS FOR SHIELDING INTERFERENCE
Not every membrane switch requires shielding for EMI, RFI, or ESD. In some cases, the graphic overlay provides enough of a buffer to protect the internal components. However, for various reasons – including application, environment, regulations, and more – additional shielding is often warranted.
ESD Shielding Membrane:
- The ESD shielding membrane is a thin, conductive layer that is incorporated into the overall membrane switch assembly.
- This layer is typically made from a material such as metallized polyester or conductive fabric.
Dissipating Static Electricity:
- When static electricity builds up on the surface of the membrane switch, the conductive ESD shielding membrane provides a path for the static charge to be safely dissipated.
- This helps prevent the static electricity from reaching and potentially damaging the sensitive electronic components within the switch assembly.
Grounding the ESD Shielding:
- The ESD shielding membrane is typically connected to a ground plane or ground trace within the membrane switch assembly.
- This grounding connection ensures that the static electricity is directed away from the sensitive components and safely discharged.
Enhanced Protection:
- The ESD shielding membrane provides an additional layer of protection for the membrane switch, complementing other design features that may be in place to mitigate the effects of static electricity.
- This can include measures such as anti-static coatings, shielding around the switch components, and proper grounding of the overall system.
Product Descriptions :
| Overlay material ---For front or face overlay | ||||||||
| Polyester | Polycarbonate | |||||||
1 Highly versatile for embossing | 1 wide range of the surface finishes and thicknesses | |||||||
| Embossing --- Graphic overlay or up circuit can be embossed in order to insert metal stainless steel domes for good tactile when press .Leave space for mechanical keys and provide tactile indications | ||||||||
| Pedestal embossing | Rim embossing | Pillow embossing | Dim embossing | |||||
| Windows or LCD --- For display functions | ||||||||
| Printed colors windows such like red ,black and so on | Transparent finishes windows | |||||||
| Keys | ||||||||
| Tactile Keys :witch metal domes or Poly domes ,Metal dome with different diameter and pressure kinds | Non-tactile keys: printed silver spot on the circuit | |||||||
| LEDs ---Miniature LEDs ,LED colors :white ,Green ,Red ,Blue ,Yellow ,Orange and others | ||||||||
| EL and Sensors or inductors --- EL can be light any place where where you like ,and sensors can be used as LEDs | ||||||||
| Cables --- is extension of circuit and communication with your device | ||||||||
| Screen printing conductive silver cable | Copper plated cable /Polyimide or FPC | PCB cable | ||||||
| Types of connector --- 1 Zero insertion force(ZIF) with 0.5MM ,1.0MM,1.25MM pitch ;2 Female connector with 2.54MM pitch; 3 Male connector | ||||||||
| Shielding --- For protection function | ||||||||
| Gasket seal/Waterproof :protect the conductors against from the humidity and splashes | EMI/RFI/ESD Shielding: use an Aluminum foil shielding /clear ITO electrical conductive polyester to protect | |||||||
| Rear Adhesive --- Mostly use the 3M double-side mounting glue brand of USA. Also accepted others such like Lohmann and others | ||||||||
| Back plate --- Use in Aluminum ,Polycarbonate ,Acrylic Or PMMA | ||||||||
| Matching color --- PMS or RAL Is best ,CMYK or RGB also can be ok if you can supply PMS Or RAL | ||||||||
| Standard Tolerances :+/-0.2MM | ||||||||
