Electricity: circuit makers and breakers – Capacitive switch
Patent
1994-10-25
1997-01-14
Scott, J. R.
Electricity: circuit makers and breakers
Capacitive switch
341 33, H03K 17975
Patent
active
055942229
ABSTRACT:
A low impedance touch sensor detects manual contact of a dielectric substrate by a human user. The touch sensor includes a first conductive electrode pad having a closed, continuous geometric form and a second conductive electrode which substantially co-planarly surrounds the first electrode and is spaced from the first electrode by a channel. The first and second electrodes are disposed on the same surface of the substrate. An active electrical component, 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.
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Integrated Controls
Scott J. R.
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