TITLE

Piezoelectric oxide semiconductor field effect transistor touch sensing devices

AUTHOR(S)
Dahiya, Ravinder S.; Metta, Giorgio; Valle, Maurizio; Adami, Andrea; Lorenzelli, Leandro
PUB. DATE
July 2009
SOURCE
Applied Physics Letters;7/20/2009, Vol. 95 Issue 3, p034105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This work presents piezoelectric oxide semiconductor field effect transistor (POSFET) based touch sensing devices. These devices are fabricated by spin coating thin (∼2.5 μm) piezoelectric polymer film directly on to the gate area of metal oxide semiconductor (MOS) transistor. The polymer film is processed in situ and challenging issues such as in situ poling of piezoelectric polymer film, without damaging or altering the characteristics of underlying MOS devices, are successfully dealt with. The POSFET device represents an integral “sensotronic” unit comprising of transducer and the transistor—thereby sensing as well as conditioning (and processing) the touch signal at “same site.”
ACCESSION #
43398074

 

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