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Class Information
Number: 438/157
Name: Semiconductor device manufacturing: process > Making field effect device having pair of active regions separated by gate structure by formation or alteration of semiconductive active regions > On insulating substrate or layer (e.g., tft, etc.) > Having insulated gate > Plural gate electrodes (e.g., dual gate, etc.)
Description: Process for making a field effect transistor formed on an insulating layer or substrate wherein plural insulated gate electrodes on either the same or opposite sides of the active channel region serve to control the electrical conduction characteristics of the semiconductive active channel region.

Patents under this class:
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Patent Number Title Of Patent Date Issued
5348899 Method of fabricating a bottom and top gated thin film transistor Sep. 20, 1994
5332685 Method of manufacturing a DRAM cell Jul. 26, 1994
5273921 Methods for fabricating a dual-gated semiconductor-on-insulator field effect transistor Dec. 28, 1993
5266507 Method of fabricating an offset dual gate thin film field effect transistor Nov. 30, 1993
5266515 Fabricating dual gate thin film transistors Nov. 30, 1993
5229310 Method for making a self-aligned vertical thin-film transistor in a semiconductor device Jul. 20, 1993
5223046 Super-magnetostrictive alloy Jun. 29, 1993
5198379 Method of making a MOS thin film transistor with self-aligned asymmetrical structure Mar. 30, 1993
5188973 Method of manufacturing SOI semiconductor element Feb. 23, 1993
5185535 Control of backgate bias for low power high speed CMOS/SOI devices Feb. 9, 1993
5166084 Process for fabricating a silicon on insulator field effect transistor Nov. 24, 1992
5145796 Method for manufacturing a semiconductor apparatus Sep. 8, 1992
5120666 Manufacturing method for semiconductor device Jun. 9, 1992
5075237 Process of making a high photosensitive depletion-gate thin film transistor Dec. 24, 1991
5053347 Amorphous silicon thin film transistor with a depletion gate Oct. 1, 1991
4980308 Method of making a thin film transistor Dec. 25, 1990
4968638 Semiconductor devices Nov. 6, 1990
4945067 Intra-gate offset high voltage thin film transistor with misalignment immunity and method of its fabrication Jul. 31, 1990
4459739 Thin film transistors Jul. 17, 1984
4178605 Complementary MOS inverter structure Dec. 11, 1979
4169746 Method for making silicon on sapphire transistor utilizing predeposition of leads Oct. 2, 1979
4115914 Electrically erasable non-volatile semiconductor memory Sep. 26, 1978
4040073 Thin film transistor and display panel using the transistor Aug. 2, 1977

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