Abstract
The fabrication of metal-base transistors (MBTs) based on InGaZnO at room temperature is reported for the first time. With a suitable oxygen doping to the sputtering-deposited InGaZnO film and an HfSiO interlayer, improved diode performances with enhanced Schottky barrier heights of 0.70 and 0.66 eV are obtained for the base/collector (Ti/InGaZnO) and base/emitter (Au/HfSiO/InGaZnO) junctions, respectively. InGaZnO MBT using a Ti(10 nm)/Au(10 m)/HfSiO(5 nm) dual metal base shows a high common-emitter current gain (β) 840-310 at VCE = 2 V and IB ranging from 1 to 10 nA.
Original language | English |
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Pages (from-to) | 1465-1467 |
Number of pages | 3 |
Journal | Electronics Letters |
Volume | 50 |
Issue number | 20 |
DOIs | |
Publication status | Published - 2014 Sept 25 |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering