Abstract
We have fabricated simple circuits, including ring oscillators, using ZnO thin films deposited by low temperature (200°C) atmospheric pressure chemical vapor deposition. Bottom gate TFTs with aluminum source and drain contacts typically had field effect mobility >15 cm2/V·s. Seven stage ring oscillators operated at frequency as high as 1 MHz for a supply voltage of 32 V, corresponding to a propagation delay less than 75 nsec/stage. These circuits also had propagation delay less than 150 ns/stage at a supply voltage of 18 V. To our knowledge, these are the fastest ZnO circuits reported to date.
Original language | English (US) |
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Article number | 4419005 |
Pages (from-to) | 579-582 |
Number of pages | 4 |
Journal | Technical Digest - International Electron Devices Meeting, IEDM |
DOIs | |
State | Published - 2007 |
Event | 2007 IEEE International Electron Devices Meeting, IEDM - Washington, DC, United States Duration: Dec 10 2007 → Dec 12 2007 |
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
- Materials Chemistry