Sharp Logic Switch Based on Band Modulation

The capability of Z 2 -FET (Zero Impact Ionization and Zero Subthreshold Slope FET) to operate as a sharp logic switch is demonstrated in advanced FD-SOI (Fully Depleted SOI) technology. The operation mechanism is band-modulation which enables remarkable DC performance in terms of ON/OFF current rat...

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Veröffentlicht in:IEEE electron device letters 2019-11, Vol.40 (11), p.1852-1855
Hauptverfasser: Lee, Kyung Hwa, El Dirani, Hassan, Fonteneau, Pascal, Bawedin, Maryline, Cristoloveanu, Sorin
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container_end_page 1855
container_issue 11
container_start_page 1852
container_title IEEE electron device letters
container_volume 40
creator Lee, Kyung Hwa
El Dirani, Hassan
Fonteneau, Pascal
Bawedin, Maryline
Cristoloveanu, Sorin
description The capability of Z 2 -FET (Zero Impact Ionization and Zero Subthreshold Slope FET) to operate as a sharp logic switch is demonstrated in advanced FD-SOI (Fully Depleted SOI) technology. The operation mechanism is band-modulation which enables remarkable DC performance in terms of ON/OFF current ratio and sharp switch (~1 mV/decade). Z 2 -FETs have successfully been used for ESD protection and capacitorless DRAM memory, but the presence of an inherent hysteresis has handicapped so far logic applications. However, this letter shows that fast pulses on the gate result in hysteresis-free switching: the device turns ON and OFF at same gate bias. The sharpness of the switch depends on device parameters, bias and speed of operation. Systematic experiments compare the performance of Z 2 -FETs with dual or single ground-planes.
doi_str_mv 10.1109/LED.2019.2939665
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subjects Anodes
band-modulation
Bias
dual ground planes
Electrostatic discharges
Engineering Sciences
FD-SOI
Field effect transistors
Global Positioning System
Hysteresis
Logic
Logic gates
Logic switch
Micro and nanotechnologies
Microelectronics
Modulation
sharp switch
Sharpness
SOI
Switches
Z²-FET
title Sharp Logic Switch Based on Band Modulation
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