| 摘要 |
A low impedance touch sensor detects manual contact of a dielectric substrate (10) by a human user. The touch sensor includes a first conductive electrode pad (16) having a closed, continuous geometric form and a second conductive electrode (18) which substantially surrounds the first electrode in a spaced apart, coplanar relationship by a channel (20). The first and second electrodes are disposed on the same planar undersurface (14) of the substrate. An active electrical component (26), such as a transistor, is located on the substrate proximate the first and second electrodes, and is electrically coupled to the first and second electrodes. |
