Do you have a product that has stringent EMI shielding requirements? CSI can integrate EMI mesh into your keypad assembly using the finest woven blackened wire mesh. The mesh is blackened to make it suitable for optical applications such as applying over displays or under windows. 

EMI protection will be provided by covering the entire keypad, display and LED conductors, etc. with wire mesh. The mesh is typically 80 x 80 density, of .0011 inch diameter stainless steel wire strands.  It is an interwoven fabric, silver coated, and then blackened. The mesh shall be in direct electrical contact when attached to the enclosure. The woven mesh is highly conductive for the best EMI shielding effectiveness and is even and very black avoiding highly reflective un-blackened wires and discolorations.

Integrating the Mesh into the Design:

1. The mesh is die-cut to the shape of the keypad and then assembled into the internal layers of the keypad assembly.
2. CSI will work closely with you in determining the best method to make direct electrical contact between the EMI mesh and your product when the keypad is assembled to your enclosure.