How Do I Get Started?

CSI Keyboards Membrane Switches

Wondering where to start and how to get the ball rolling on your membrane switch project? 

CSI just needs to collect a few details on your product and design. Once we obtain some basic information on your design, we can begin the quoting and proposal process.

Please provide any mechanical drawings (DWG, DXF, IGES, STEP) and artwork files (AI or CDR) if available.

  • Molded rubber or polyester overlay?
  • Copper flex circuit or printed silver?
  • Mechanical dimensions – height and width of part, keys, etc.
  • Artwork/Graphic Overlay if not, how many colors (Pantone #s)?
  • Embossed (plateau/pillow or rim)?
  • Tactile feel (domes)?
  • Any backlighting?  Any LEDs?
  • Length of tail and tail break out location?
  • What type of connection?  Female connector or prep for ZIF?
  • What type of environment?  Does the keypad need to be environmentally sealed?
  • Are there any windows?  Do they need to be reinforced (opti-bonded)?
  • Is there a display and would you like us to integrate it into the interface?

Other Key Considerations

  • Space between keys and around perimeter of keypad should be .100” or better. 
  • .100” center to center min for tail with connector. 
  • 1mm center to center min for ZIF type interconnect. 
  • Tail exit should be .25” min. from edge, keys and other components (tail cannot exit under key). 
  • Normal final assembly tolerances = size +/- .010”, die cut to image = +/- .010” 

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