|
- Tactile feedback of
actuation force is produced by embossing the key area on the top
circuit, creating a polydome feel, or by positioning
a metal dome at each key location between the top
and bottom circuit.
|
|
- The typical six layer
construction; graphic overlay, graphic adhesive, top circuit,
circuit spacer, bottom circuit, and rear adhesive.
- Silver ink circuits are
printed on polyester. Dielectric ink protects crossovers
and exposed tail traces.
- EMI/RFI and ESD protection is obtained using printed conductive ink
shields, aluminum foil, metallized mylar or copper foil on the top
surface of the upper circuit.
|
