Patent ID: 7050045

Claim:
A pointing device for integrating into portable electronic devices comprising: a bottom substrate having a top face and a bottom face, the top face including a sensing region comprising a plurality of interdigitated conductive trace regions, each trace region including interdigitated common and sense traces, the bottom substrate defining at least one via through the bottom substrate for each sense trace and the common trace, each via supporting a conductive path from one trace to at least one lead element, the bottom face supporting at least one lead element for each sense trace and the common trace, each lead element solderable to a printed circuit board; a flexible substrate constructed from a heat resistant polymer, the flexible substrate having a resistive layer deposited on a bottom side; a raised pedestal formed on the bottom substrate top face around at least a portion of the sensing region, the pedestal separating the plurality of the interdigitated conductive traces from the flexible substrate resistive layer; and an adhesive spacer layer joining the flexible substrate to the bottom substrate such that the resistive layer is facing the bottom substrate sensing region.