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Class Information
Number: 257/66
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Non-single crystal, or recrystallized, semiconductor material forms part of active junction (including field-induced active junction) > Field effect device in non-single crystal, or recrystallized, semiconductor material
Description: Subject matter wherein the active solid-state device is a field effect device, i.e., one which operates with the application of a voltage across electrical terminals thereof.










Sub-classes under this class:

Class Number Class Name Patents
257/72 In array having structure for use as imager or display, or with transparent electrode 3,857
257/71 In combination with capacitor element (e.g., dram) 378
257/67 In combination with device formed in single crystal semiconductor material (e.g., stacked fets) 373


Patents under this class:
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Patent Number Title Of Patent Date Issued
6225644 Semiconductor TFT, producing method thereof, semiconductor TFT array substrate and liquid crystal display using the same May. 1, 2001
6225645 Semiconductor device and method of manufacturing the same May. 1, 2001
6225663 Semiconductor device having SOI structure and method of fabricating the same May. 1, 2001
6225667 Leaky lower interface for reduction of floating body effect in SOI devices May. 1, 2001
6222201 Method of forming a novel self-aligned offset thin film transistor and the structure of the same Apr. 24, 2001
6218221 Thin film transistor with a multi-metal structure and a method of manufacturing the same Apr. 17, 2001
6218702 Microcrystal silicon film and its manufacturing method, and photoelectric conversion device and its manufacturing method Apr. 17, 2001
6214652 Thin film transistors and method of forming thin film transistors Apr. 10, 2001
6215130 Thin film transistors Apr. 10, 2001
6215154 Thin film transistor and method of fabricating the same Apr. 10, 2001
6215163 Semiconductor device and method of manufacturing the same where the nitrogen concentration in an oxynitride insulating layer is varied Apr. 10, 2001
6210998 Semiconductor device formed on an insulator and having a damaged portion at the interface between the insulator and the active layer Apr. 3, 2001
6211535 Method of manufacturing a semiconductor device Apr. 3, 2001
6211536 Semiconductor device having improved crystal orientation Apr. 3, 2001
6211553 Thin-film transistor, a method for manufacturing same, and a liquid crystal display device using the transistor Apr. 3, 2001
6207481 Thin film transistor having a crystallization seed layer and a method for manufacturing thereof Mar. 27, 2001
6204517 Single electron transistor memory array Mar. 20, 2001
6204519 Thin film semiconductor device Mar. 20, 2001
6204520 Thin film transistor, liquid crystal display and fabricating methods thereof Mar. 20, 2001
6201260 Thin film transistor and method of manufacturing the same Mar. 13, 2001
6188085 Thin film transistor and a method of manufacturing thereof Feb. 13, 2001
6188108 Thin film transistor and a fabricating method thereof Feb. 13, 2001
6184559 Active matrix display device having multiple gate electrode portions Feb. 6, 2001
6175134 Thin film transistors Jan. 16, 2001
6172380 Semiconductor material Jan. 9, 2001
6172381 Source/drain junction areas self aligned between a sidewall spacer and an etched lateral sidewall Jan. 9, 2001
6166398 Thin film transistors Dec. 26, 2000
6166447 Semiconductor memory device having first and second voltage level shifters Dec. 26, 2000
6160268 Semiconductor device and manufacturing method thereof Dec. 12, 2000
6153920 Process for controlling dopant diffusion in a semiconductor layer and semiconductor device formed thereby Nov. 28, 2000
6150679 FIFO architecture with built-in intelligence for use in a graphics memory system for reducing paging overhead Nov. 21, 2000
6147384 Method for forming planar field effect transistors with source and drain an insulator and device constructed therefrom Nov. 14, 2000
6144042 Polysilicon thin film transistor Nov. 7, 2000
6140158 Method of manufacturing thin film transistor-liquid crystal display Oct. 31, 2000
6140667 Semiconductor thin film in semiconductor device having grain boundaries Oct. 31, 2000
6140668 Silicon structures having an absorption layer Oct. 31, 2000
6137120 Semiconductor device and method of fabricating the same Oct. 24, 2000
6133583 Semiconductor device and method for producing the same Oct. 17, 2000
6133586 Semiconductor memory device and method of fabricating the same Oct. 17, 2000
6130455 Semiconductor device, thin film transistor having an active crystal layer formed by a line containing a catalyst element Oct. 10, 2000
6130456 Thin film transistor matrix device Oct. 10, 2000
6124602 Semiconductor circuit having a crystal growth in an active layer where a specific distance is established between a selected portion and where the growth starts to the active layer of the circ Sep. 26, 2000
6124603 Complementary integrated circuit having N channel TFTs and P channel TFTs Sep. 26, 2000
6118140 Semiconductor apparatus having conductive thin films Sep. 12, 2000
6114741 Trench isolation of a CMOS structure Sep. 5, 2000
6107641 Thin film transistor with reduced parasitic capacitance and reduced feed-through voltage Aug. 22, 2000
6104040 Liquid crystal display having a transistor with doped region in an active semiconductor layer Aug. 15, 2000
6104042 Thin film transistor with a multi-metal structure a method of manufacturing the same Aug. 15, 2000
6100466 Method of forming microcrystalline silicon film, photovoltaic element, and method of producing same Aug. 8, 2000
6097037 Thin film transistor having a continuous crystallized layer including the channel and portions of source and drain regions Aug. 1, 2000

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