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Class Information
Number: 257/E29.273
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)
Description: This subclass is indented under subclass E29.255. This subclass is substantially the same in scope as ECLA classification H01L29/786.










Sub-classes under this class:

Class Number Class Name Patents
257/E29.295 Characterized by insulating substrate or support (epo) 323
257/E29.299 Characterized by property or structure of channel or contact thereto (epo) 768
257/E29.296 Comprising group iii-v or ii-vi compound, or of se, te, or oxide semiconductor (epo) 235
257/E29.297 Comprising group iv non-si semiconductor materials or alloys (e.g., ge, sin alloy, sic alloy) (epo) 202
257/E29.285 Silicon transistor (epo) 33
257/E29.274 Vertical transistor (epo) 208
257/E29.275 With multiple gates (epo) 719
257/E29.276 With supplementary region or layer in thin film or in insulated bulk substrate supporting it for controlling or increasing voltage resistance of device (epo) 87


Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8710506 Pixel structure of organic light emitting device Apr. 29, 2014
8710494 Organic dual-gate memory and method for producing same Apr. 29, 2014
8704219 Method for manufacturing semiconductor device Apr. 22, 2014
8704235 Semiconductor circuit having capacitor and thin film transistor, flat panel display including the semiconductor circuit, and method of manufacturing the semiconductor circuit Apr. 22, 2014
8686427 Liquid crystal display and method of manufacturing the same Apr. 1, 2014
8686422 Active matrix substrate and active matrix display device Apr. 1, 2014
8673693 Methods for forming materials using micro-heaters and electronic devices including such materials Mar. 18, 2014
8674365 Array substrate and manufacturing method thereof Mar. 18, 2014
8669550 Semiconductor device and manufacturing method thereof Mar. 11, 2014
8664639 Display apparatus Mar. 4, 2014
8664658 Semiconductor device Mar. 4, 2014
8664652 Semiconductor device and method for manufacturing the same Mar. 4, 2014
8659013 Semiconductor device Feb. 25, 2014
8659021 Organic light-emitting display device and method of manufacturing the same Feb. 25, 2014
8653531 Thin film transistor and display device Feb. 18, 2014
8653524 Touch-sensing display device and method for manufacturing the same Feb. 18, 2014
8653523 Thin-film transistor forming substrate, semiconductor device, and electric apparatus Feb. 18, 2014
8653517 Thin-film transistor and method for manufacturing the same Feb. 18, 2014
8648344 Organic light-emitting display device and method of manufacturing the same Feb. 11, 2014
8643021 Semiconductor device including multiple insulating films Feb. 4, 2014
8633066 Thin film transistor with reduced edge slope angle, array substrate and having the thin film transistor and manufacturing method thereof Jan. 21, 2014
8633491 Display device and manufacturing method thereof Jan. 21, 2014
8629438 Semiconductor device and manufacturing method thereof Jan. 14, 2014
8629450 Flexible substrate and display device including the flexible substrate Jan. 14, 2014
8624239 Semiconductor device Jan. 7, 2014
8624240 Top gate thin film transistor and display apparatus including the same Jan. 7, 2014
8624244 Thin film transistor including a light-transmitting semiconductor film and active matrix substrate Jan. 7, 2014
8624254 Thin film transistor Jan. 7, 2014
8624330 Thin film transistors and high fill factor pixel circuits and methods for forming same Jan. 7, 2014
8624397 Electrode layer structure for a thin-film transistor and process for manufacture thereof Jan. 7, 2014
8618545 Thin film transistor and display Dec. 31, 2013
8614141 Utilization of organic buffer layer to fabricate high performance carbon nanoelectronic devices Dec. 24, 2013
8614435 Utilization of organic buffer layer to fabricate high performance carbon nanoelectronic devices Dec. 24, 2013
8614445 Alkylsilane laminate, production method thereof and thin-film transistor Dec. 24, 2013
8610226 Photosensor element, photosensor circuit, thin-film transistor substrate, and display panel Dec. 17, 2013
8604481 Thin film transistor Dec. 10, 2013
8604479 Display substrate, method for manufacturing the same, and display apparatus having the same Dec. 10, 2013
8604470 Oxide thin film transistor and method of fabricating the same Dec. 10, 2013
8604469 Thin film transistor array panel Dec. 10, 2013
8598583 Thin film transistor panel and fabricating method thereof Dec. 3, 2013
8592262 Residue isolation process in TFT LCD fabrication Nov. 26, 2013
8592817 Self-aligned metal oxide TFT with reduced number of masks Nov. 26, 2013
8592861 Display device and manufacturing method of the display device Nov. 26, 2013
8587093 Multilayer device with organic and inorganic dielectric material Nov. 19, 2013
8586987 Active matrix substrate and active matrix display device Nov. 19, 2013
8586986 Pixel structure Nov. 19, 2013
8586427 Thin film transistors and methods of manufacturing thin film transistors Nov. 19, 2013
8580623 Thin film transistor substrate and display device including the same, and method for manufacturing thin film transistor substrate Nov. 12, 2013
8581247 Flexible semiconductor device having gate electrode disposed within an opening of a resin film Nov. 12, 2013
8581248 Thin film transistor (TFT) having copper electrodes Nov. 12, 2013

1 2 3 4 5 6 7 8










 
 
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