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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:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 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 |
| 7018750 |
Mask and method for crystallizing amorphous silicon |
Mar. 28, 2006 |
| 7011992 |
Method of fabricating a thin film transistor using dual or multiple gates |
Mar. 14, 2006 |
| 6977775 |
Method and apparatus for crystallizing semiconductor with laser beams |
Dec. 20, 2005 |
| 6964831 |
Method of fabricating polysilicon film by excimer laser crystallization process |
Nov. 15, 2005 |
| 6909118 |
Semiconductor device and method of fabricating the same |
Jun. 21, 2005 |
| 6903370 |
Variable quality semiconductor film substrate |
Jun. 7, 2005 |
| 6890870 |
Method for controlling electrical conductivity |
May. 10, 2005 |
| 6890842 |
Method of forming a thin film transistor |
May. 10, 2005 |
| 6872977 |
Thin film semiconductor device, production process and information displays |
Mar. 29, 2005 |
| 6825494 |
Polycrystalline silicon thin film used in a thin film transistor and a device using the same |
Nov. 30, 2004 |
| 6806099 |
Process for producing polycrystalline silicon film by crystallizing on amorphous silicon film by light irradiation |
Oct. 19, 2004 |
| 6800541 |
Pulse laser irradiation method for forming a semiconductor thin film |
Oct. 5, 2004 |
| 6781155 |
Electroluminescence display device with a double gate type thin film transistor having a lightly doped drain structure |
Aug. 24, 2004 |
| 6773969 |
Method of forming a thin film transistor |
Aug. 10, 2004 |
| 6767799 |
Laser beam irradiation method |
Jul. 27, 2004 |
| 6720578 |
Polycrystalline silicon thin film for a thin film transistor and display device using the same |
Apr. 13, 2004 |
| 6713371 |
Large grain size polysilicon films formed by nuclei-induced solid phase crystallization |
Mar. 30, 2004 |
| 6660576 |
Substrate and method for producing variable quality substrate material |
Dec. 9, 2003 |
| 6649032 |
System and method for sputtering silicon films using hydrogen gas mixtures |
Nov. 18, 2003 |
| 6607971 |
Method for extending a laser annealing pulse |
Aug. 19, 2003 |
| 6573163 |
Method of optimizing channel characteristics using multiple masks to form laterally crystallized ELA poly-Si films |
Jun. 3, 2003 |
| 6396560 |
Method of producing liquid crystal display panel |
May. 28, 2002 |
| 6344376 |
Method of forming a thin film transistor |
Feb. 5, 2002 |
| 6337233 |
Method of manufacturing a polycrystalline silicon layer |
Jan. 8, 2002 |
| 6331474 |
Defect compensation method for semiconductor element |
Dec. 18, 2001 |
| 6329673 |
Liquid-crystal display apparatus, transistor, and display apparatus |
Dec. 11, 2001 |
| 6281057 |
Method of manufacturing a semiconductor device |
Aug. 28, 2001 |
| 6271062 |
Thin film semiconductor device including a semiconductor film with high field-effect mobility |
Aug. 7, 2001 |
| 5796116 |
Thin-film semiconductor device including a semiconductor film with high field-effect mobility |
Aug. 18, 1998 |
| 5466619 |
Method for fabricating a thin film transistor |
Nov. 14, 1995 |
| 5466619 |
Method for fabricating a thin film transistor |
Nov. 14, 1995 |
| 5111260 |
Polysilicon FETs |
May. 5, 1992 |
| 5064779 |
Method of manufacturing polycrystalline silicon film |
Nov. 12, 1991 |
| 4988638 |
Method of fabrication a thin film SOI CMOS device |
Jan. 29, 1991 |
| 4951113 |
Simultaneously deposited thin film CMOS TFTs and their method of fabrication |
Aug. 21, 1990 |
| 4613382 |
Method of forming passivated polycrystalline semiconductors |
Sep. 23, 1986 |
| 4459739 |
Thin film transistors |
Jul. 17, 1984 |
| 4422090 |
Thin film transistors |
Dec. 20, 1983 |
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