Three-dimensional liquid crystal polymer multilayer circuit board including membrane switch and related methods

摘要

An electronic device includes a multilayer circuit board having a non-planar three-dimensional shape defining a membrane switch recess therein. The multilayer circuit board may include at least one liquid crystal polymer (LCP) layer, and at least one electrically conductive pattern layer thereon defining at least one membrane switch electrode adjacent the membrane switch recess to define a membrane switch. The electronic may further include a compressible dielectric material filling the membrane switch recess. The electronic device may also include at least one spring member within the membrane switch recess.

主权项

1. An electronic device comprising:
a multilayer circuit board having a non-planar three-dimensional shape defining a sealed membrane switch recess therein; said multilayer circuit board comprising at least one liquid crystal polymer (LCP) layer, and at least one electrically conductive pattern layer defining at least one membrane switch electrode within the sealed membrane switch recess to define a sealed membrane switch; circuitry on said multilayer circuit board and coupled to said at least one electrically conductive pattern layer; a compressible dielectric material filling the sealed membrane switch recess; and at least one spring member within the sealed membrane switch recess.