Fishing – trapping – and vermin destroying
Patent
1989-03-29
1990-10-16
Hearn, Brian E.
Fishing, trapping, and vermin destroying
437 44, 437 49, 437181, 437913, 437907, 148DIG1, 148DIG4, 148DIG90, 148DIG91, H01L 2188, H01L 21265
Patent
active
049635034
ABSTRACT:
A liquid crystal display device comprises, a plurality of display electrodes which are selectively energized through on-off control of thin film transistors. In order to reduce the channel length of the thin film transistors to increase operation speed and obtain uniform characteristics each display electrode and an associated transistor source electrode is formed on one of a pair of transparent substrates of the liquid crystal display device, a semiconductor layer is formed between the display electrode and source electrode, a gate insulating film is formed on the semiconductor layer, and a gate electrode is formed on a portion of the gate insulating film between the display electrode and source electrode. Then, ions are implanted into the semiconductor layer with the gate electrode used as a mask, thus rendering portions of the semiconductor layer contiguous to the display electrode and source electrode into ohmic layers. A channel is thus obtained between the ohmic layers with its length determined by the length of the gate electrode.
REFERENCES:
patent: 4169746 (1979-10-01), Ipri et al.
Koyanagi et al. "Short-channel MOSFET's Fabricated by Self-Aligned ion-implantation and laser annealing" Appl. Phys. Lett. 35(8) Oct. 15, 1979, pp. 621-623.
Aoki Shigeo
Miyake Katsumi
Okamoto Kotaro
Ugai Yasuhiro
Hearn Brian E.
Hosiden Electronics Co. Ltd.
Nguyen Tuan
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