Patent ID: 8830179

Claim:
A touch pad for a data processing system, comprising: a surface; a first electrically conductive thin film above the surface; a first plurality of electrically non-conductive spacer dots above the first electrically conductive thin film, wherein the first plurality of electrically non-conductive spacer dots has a first density; a second plurality of electrically non-conductive spacer dots above the first electrically conductive thin film, wherein the second plurality of electrically non-conductive spacer dots has a second density, and wherein the first density is different from the second density, wherein the second plurality of electrically non-conductive spacer dots is non-overlapping with the first plurality of electrically non-conductive spacer dots; and a second electrically conductive thin film above both the first plurality of electrically non-conductive spacer dots and the second plurality of electrically non-conductive spacer dots.