In this paper we present series of experimental results showing the vulnerability of tactile sensors called by name Piezoelectric Oxide Semiconductor Field Effect Transistors (POSFETs) toward light and bare touch. In fact these sensors have customized transistors on exposed silicon substrate/well. The result shows that by using a naked sensor chip for sensing, as was done in past works can give errors in results. We have proposed a cover layer i.e., a non-transparent sheet of silicone rubber, to shield the sensor chip from noises due to light and bare touch.
Exploring vulnerability of POSFETs
SINHA, ARUN KUMAR;CAVIGLIA, DANIELE
2012-01-01
Abstract
In this paper we present series of experimental results showing the vulnerability of tactile sensors called by name Piezoelectric Oxide Semiconductor Field Effect Transistors (POSFETs) toward light and bare touch. In fact these sensors have customized transistors on exposed silicon substrate/well. The result shows that by using a naked sensor chip for sensing, as was done in past works can give errors in results. We have proposed a cover layer i.e., a non-transparent sheet of silicone rubber, to shield the sensor chip from noises due to light and bare touch.
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