Tactile Sensing Chips With POSFET Array and Integrated Interface Electronics
| Autor: | Luigi Pinna, Cristian Collini, Andrea Adami, Maurizio Valle, Ravinder Dahiya, Leandro Lorenzelli |
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| Rok vydání: | 2014 |
| Předmět: |
Engineering
Interface (computing) Hardware_PERFORMANCEANDRELIABILITY 02 engineering and technology 01 natural sciences Multiplexer 0103 physical sciences Hardware_INTEGRATEDCIRCUITS Electronic engineering Electronics Electrical and Electronic Engineering Tactile sensing Instrumentation Diode 010302 applied physics business.industry CMOS integrated circuits Electrical engineering 021001 nanoscience & nanotechnology Chip CMOS Field-effect transistor 0210 nano-technology business Voltage |
| Zdroj: | IEEE Sensors Journal. 14:3448-3457 |
| ISSN: | 2379-9153 1530-437X |
| Popis: | This work presents the advanced version of novel POSFET (Piezoelectric Oxide Semiconductor Field Effect Transistor) devices based tactile sensing chip. The new version of the tactile sensing chip presented here comprises of a 4 x 4 array of POSFET touch sensing devices and integrated interface electronics (i.e. multiplexers, high compliance current sinks and voltage output buffers). The chip also includes four temperature diodes for the measurement of contact temperature. Various components on the chip have been characterized systematically and the overall operation of the tactile sensing system has been evaluated. With new design the POSFET devices have improved performance (i.e. linear response in the dynamic contact forces range of 0.01–3N and sensitivity (without amplification) of 102.4 mV/N), which is more than twice the performance of their previous implementations. The integrated interface electronics result in reduced interconnections which otherwise would be needed to connect the POSFET array with off-chip interface electronic circuitry. This research paves the way for CMOS (Complementary Metal Oxide Semiconductor) implementation of full on-chip tactile sensing systems based on POSFETs. |
| Databáze: | OpenAIRE |
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