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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
8581255 Pixel structure having storage capacitance of the capacitor Nov. 12, 2013
8575617 Thin film transistor array having improved connectivity between shorting bar and data lines Nov. 5, 2013
8575616 Thin film transistor substrate and method for manufacturing the same Nov. 5, 2013
8575665 Graphene electronic device and method of fabricating the same Nov. 5, 2013
8569834 Accumulation field effect microelectronic device and process for the formation thereof Oct. 29, 2013
8569760 Thin film transistor having oxide semiconductor layer as ohmic contact layer and method of fabricating the same Oct. 29, 2013
8569756 Alkylsilane laminate, production method thereof and thin-film transistor Oct. 29, 2013
8563980 Array substrate and manufacturing method Oct. 22, 2013
8558240 Thin film transistor display panel having a gate wire with different thicknesses and manufacturing method thereof Oct. 15, 2013
8558241 Semiconductor device and fabrication method thereof Oct. 15, 2013
8552432 Display substrate and method of manufacturing the same Oct. 8, 2013
8552498 Semiconductor device and method for manufacturing the same Oct. 8, 2013
8546197 Thin film transistor, method of manufacturing the same, and electronic device Oct. 1, 2013
8541780 Semiconductor device having oxide semiconductor layer Sep. 24, 2013
8541785 Display device Sep. 24, 2013
8536579 Electronic device having spatially inverted thin film transistors Sep. 17, 2013
8530893 Display substrate and method of manufacturing the same Sep. 10, 2013
8525176 Thin film transistor, display device using the same, and thin film transistor manufacturing method Sep. 3, 2013
8525183 Semiconductor device including multiple insulating films Sep. 3, 2013
8519393 Thin film transistor array panel and manufacturing method thereof Aug. 27, 2013
8519453 Thin film transistor device with metallic electrodes Aug. 27, 2013
8513677 Display device having an aluminum complex oxide on metal layer for improving corrosion resistance Aug. 20, 2013
8501553 Method for manufacturing thin film transistor (TFT) array substrate Aug. 6, 2013
8502227 Active matrix substrate, display device, method for inspecting the active matrix substrate, and method for inspecting the display device Aug. 6, 2013
8497504 Thin film transistor and display unit Jul. 30, 2013
8497511 Array substrate and display apparatus using the same Jul. 30, 2013
8492765 Display device and method of fabricating the same Jul. 23, 2013
8492770 Thin film transistor and method of manufacturing the same Jul. 23, 2013
8487311 Pixel structure Jul. 16, 2013
8487310 Organic light-emitting display apparatus Jul. 16, 2013
8481998 Display device and method for manufacturing the same Jul. 9, 2013
8482005 Display device comprising an oxide semiconductor layer Jul. 9, 2013
8482006 Mother substrate, array substrate and method for manufacturing the same Jul. 9, 2013
8476627 Thin-film transistor, method of fabricating the thin-film transistor, and display substrate using the thin-film transistor Jul. 2, 2013
8476744 Thin film transistor with channel including microcrystalline and amorphous semiconductor regions Jul. 2, 2013
8471255 Bottom-gate thin-film transistor having a multilayered channel and method for manufacturing same Jun. 25, 2013
8471253 Crosslinked hybrid gate dielectric materials and electronic devices incorporating same Jun. 25, 2013
8466463 Semiconductor device and manufacturing method thereof Jun. 18, 2013
8466465 Thin film transistor having an oxide semiconductor bilayer, method of manufacturing the same and flat panel display device having the same Jun. 18, 2013
8460983 Method for modifying and controlling the threshold voltage of thin film transistors Jun. 11, 2013
8461584 Semiconductor device with metal oxide film Jun. 11, 2013
8461595 Method for making semiconductor apparatus and semiconductor apparatus obtained by the method, method for making thin film transistor substrate and thin film transistor substrate obtained by th Jun. 11, 2013
8450742 Thin film transistor having semiconductor with different crystallinities and manufacturing method thereof May. 28, 2013
8450142 Organic thin film transistors May. 28, 2013
8446010 Multilayer wiring, semiconductor device, substrate for display device, and display device May. 21, 2013
8441008 Solution composition for manufacturing metal oxide semiconductor May. 14, 2013
8441012 Array substrate, method for manufacturing array substrate, and display device May. 14, 2013
8436403 Semiconductor device including transistor provided with sidewall and electronic appliance May. 7, 2013
8431926 Semiconductor device having oxide semiconductor layer Apr. 30, 2013
8426919 Integrated circuitry Apr. 23, 2013

1 2 3 4 5 6 7 8

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