학술논문

A new a-Si TFT with Al/sub 2/O/sub 3//SiN double-layered gate insulator for 10.4-inch diagonal multicolor display
Document Type
Conference
Source
International Technical Digest on Electron Devices Electron Devices Meeting, 1990. IEDM '90. Technical Digest., International. :851-854 1990
Subject
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Thin film transistors
Electrodes
Displays
Silicon compounds
Insulation
Conductivity
Oxidation
Manufacturing
Image quality
Language
ISSN
0163-1918
Abstract
A novel a-Si TFT (thin film transistor) with an Al gate electrode and an Al/sub 2/O/sub 3//SiN double-layered gate insulator has been developed and successfully applied to a 10.4-in diagonal multicolor display panel. Al is a low resistivity metal and it is also possible to form Al/sub 2/O/sub 3/ by anodic oxidation. These features contribute greatly to decreasing the number of defects in the panel and are indispensable for manufacturing a large-size display. The Al, which is used as a gate electrode, can also be used as a gate bus-line metal. As a result, the gate bus-line resistance of the panel can be reduced to about 2 k Omega , which is quite effective for improving the image quality of the panel.ETX