Patent
1988-04-29
1990-09-18
James, Andrew J.
357 4, 357 30, 357 41, 357 71, H01L 2712, H01L 2978, H01L 2348
Patent
active
049582054
ABSTRACT:
A self-aligned TFT array for liquid-crystal display devices and a method of manufacturing the array are disclosed. A protective insulating layer on a semiconductor layer is exactly aligned with a gate electrode. A self-alignment method is used for patterning the protective insulating layer and an impurity-doped semiconductor layer on the semiconductor layer. No lift-off process is necessary.
REFERENCES:
patent: 4601097 (1986-07-01), Shimbo
patent: 4609930 (1986-09-01), Yamazaki
patent: 4618873 (1986-10-01), Sasano et al.
patent: 4624737 (1986-11-01), Shimbo
patent: 4685195 (1987-08-01), Szydlo et al.
Snell et al, "Application of Amorphous Silicon Field Effect Transistors in Addressable Liquid Crystal Display Panels", Applied Physics, 24, 357-362 (1981).
Kitahiro Isamu
Takeda Mamoru
Yamashita Ichiro
James Andrew J.
Matsushita Electric - Industrial Co., Ltd.
Ngo Ngan Van
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