1. Sharp switching, hysteresis-free characteristics of Z 2 -FET for fast logic applications
- Author
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Kyung Hwa Lee, S. Sato, Pascal Fonteneau, H. El Dirani, Sorin Cristoloveanu, Maryline Bawedin, STMicroelectronics [Crolles] (ST-CROLLES), STMicroelectronics [Grenoble] (ST-GRENOBLE), Institut de Microélectronique, Electromagnétisme et Photonique - Laboratoire d'Hyperfréquences et Caractérisation (IMEP-LAHC ), and Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019])
- Subjects
Silicon on insulator ,Z2-FET ,02 engineering and technology ,Integrated circuit ,Hardware_PERFORMANCEANDRELIABILITY ,01 natural sciences ,7. Clean energy ,law.invention ,law ,0103 physical sciences ,Hardware_INTEGRATEDCIRCUITS ,[SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics ,Fully Depleted SOI (FDSOI) ,010302 applied physics ,Physics ,business.industry ,021001 nanoscience & nanotechnology ,Logic Switch ,Subthreshold slope ,Anode ,Impact ionization ,Hysteresis ,Dual Ground Planes ,Logic gate ,Optoelectronics ,0210 nano-technology ,business ,Dram ,band-modulation ,Hardware_LOGICDESIGN ,Sharp Switch - Abstract
session A4L-F: Emerging Devices and Applications; International audience; A logic switch for integrated circuits is demonstrated experimentally in advanced FDSOI (Fully Depleted SOI). The Z 2 -FET (Zero Impact Ionization and Zero Subthreshold Slope FET) is a band-modulation device that shows remarkable performance in terms of ON/OFF current ratio and sharp switch (~ 1 mV/decade). The Z 2 -FET capability for ESD protection and capacitorless DRAM has already been documented. However, the presence of an inherent hysteresis effect has inhibited so far fast logic applications. A new generation of Z 2 -FETs with single or dual ground-plane has been fabricated with Ultra-Thin Body and Buried Oxide (UTBB) SOI technology. We demonstrate that fast pulses on the gate result in hysteresis-free switching: the device turns ON and OFF at same gate bias. Systematic measurements reveal the key roles of the device parameters and bias on the speed of operation.
- Published
- 2018
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