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Class Information
Number: 257/E29.292
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductors devices adapted for rectifying, amplifying, oscillating, or switching, capacitors, or resistors with at least one potential-jump barrier or surface barrier (epo) > Types of semiconductor device (epo) > Controllable by only signal applied to control electrode (e.g., base of bipolar transistor, gate of field-effect transistor) (epo) > Unipolar device (epo) > Field-effect transistor (epo) > With field effect produced by insulated gate (epo) > Thin-film transistor (epo) > Silicon transistor (epo) > Nonmonocrystalline (epo) > Polycrystalline or microcrystalline silicon transistor (epo)
Description: This subclass is indented under subclass E29.288. This subclass is substantially the same in scope as ECLA classification H01L29/786E4C.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.294 With inverted transistor structure (epo) 243
257/E29.293 With top gate (epo) 590

Patents under this class:
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Patent Number Title Of Patent Date Issued
8704230 Semiconductor device and manufacturing method thereof Apr. 22, 2014
8674429 Gate structure in non-volatile memory device Mar. 18, 2014
8604483 Thin film semiconductor device, display device using such thin film semiconductor device and manufacturing method thereof Dec. 10, 2013
8563981 Semiconductor device Oct. 22, 2013
8487309 Thin film transistor with a semiconductor layer that includes a microcrystalline semiconductor layer and display device Jul. 16, 2013
8487307 Semiconductor component including a lateral transistor component Jul. 16, 2013
8470695 Method of manufacturing micromachine having spatial portion within Jun. 25, 2013
8455876 Organic light emitting diode display and method of manufacturing the same Jun. 4, 2013
8440548 Manufacturing method of microcrystalline silicon film and manufacturing method of thin film transistor May. 14, 2013
8415670 Methods of producing high uniformity in thin film transistor devices fabricated on laterally crystallized thin films Apr. 9, 2013
8415669 Semiconductor display device Apr. 9, 2013
8389995 Epitaxial solid-state semiconducting heterostructures and method for making same Mar. 5, 2013
8361890 Systems, methods and materials including crystallization of substrates via sub-melt laser anneal, as well as products produced by such processes Jan. 29, 2013
8338830 Method of manufacturing a semiconductor device Dec. 25, 2012
8314428 Thin film transistor with LDD/offset structure Nov. 20, 2012
8278663 Paper including semiconductor device and manufacturing method thereof Oct. 2, 2012
8247814 Active matrix display device including a metal oxide semiconductor film Aug. 21, 2012
8232147 Fabricating method of a thin film transistor having a dielectric layer for inhibiting leakage current Jul. 31, 2012
8143623 Thin film transistor and manufacturing method thereof Mar. 27, 2012
8124980 Display device Feb. 28, 2012
8120038 Electronic device and method of manufacturing the same Feb. 21, 2012
8106398 Microcrystalline semiconductor film, thin film transistor, and display device including thin film transistor Jan. 31, 2012
8097883 Thin film transistors in pixel and driver portions characterized by surface roughness Jan. 17, 2012
8097882 Organic EL display and method of fabricating comprising plural TFTs and with connection electrode wrapped on organic pattern Jan. 17, 2012
8097880 Semiconductor component including a lateral transistor component Jan. 17, 2012
8093593 Semiconductor device having multichannel transistor Jan. 10, 2012
8089071 Thin film semiconductor device having crystal grain boundaries cyclically traversing a channel part and method for manufacturing same Jan. 3, 2012
8026162 Method of manufacturing layer-stacked wiring Sep. 27, 2011
8026557 Semiconductor device with increased channel length and method for fabricating the same Sep. 27, 2011
7999262 Thin film transistor, method of fabricating the same, and method of fabricating liquid crystal display device having the same Aug. 16, 2011
7960734 FinFET field effect transistor insulated from the substrate Jun. 14, 2011
7943929 Thin film transistor and method of fabricating the same May. 17, 2011
7939826 Thin film semiconductor device May. 10, 2011
7939822 Active matrix display device May. 10, 2011
7915689 Thin film transistor, display device including the same and manufacturing method thereof Mar. 29, 2011
7910923 Semiconductor device Mar. 22, 2011
7888682 Thin film transistor and method of manufacturing the same Feb. 15, 2011
7879658 Semiconductor device and method for manufacturing the same Feb. 1, 2011
7863113 Transistor for active matrix display and a method for producing said transistor Jan. 4, 2011
7851807 Layer-stacked wiring and semiconductor device using the same Dec. 14, 2010
7777226 Polycrystalline silicon thin film, fabrication method thereof, and thin film transistor without directional dependency on active channels fabricated using the same Aug. 17, 2010
7777269 Dual-gate device Aug. 17, 2010
7714331 Display device May. 11, 2010
7642605 Semiconductor device Jan. 5, 2010
7619255 Layer-stacked wiring and method for manufacturing same and semiconductor device using same and method for manufacturing semiconductor device Nov. 17, 2009
7553714 Method of manufacturing thin film transistor having polycrystalline silicon layer, thin film transistor manufactured using the method and flat panel display comprising the thin film transistor Jun. 30, 2009
7341884 Thin-film microelectromechanical device fabrication process Mar. 11, 2008
7312471 Liquid crystal display device having drive circuit and fabricating method thereof Dec. 25, 2007
7297980 Flat panel display device with polycrystalline silicon thin film transistor Nov. 20, 2007
7256109 Isotropic polycrystalline silicon Aug. 14, 2007

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