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Class Information
Number: 257/E21.433
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for the manufacture of unipolar device (epo) > Field-effect transistor (epo) > With an insulated gate (epo) > Lateral single gate silicon transistor (epo) > Where the source and drain or source and drain extensions are self-aligned to sides of gate (epo)
Description: This subclass is indented under subclass E21.424. This subclass is substantially the same in scope as ECLA classification H01L21/336H1.


Sub-classes under this class:

Class Number Class Name Patents
257/E21.434 With initial gate mask or masking layer complementary to prospective gate location, e.g., with dummy source and drain contacts (epo) 286


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13

Patent Number Title Of Patent Date Issued
7582554 Method for manufacturing semiconductor device Sep. 1, 2009
7579249 Methods for fabricating DRAM semiconductor devices including silicon epitaxial and metal silicide layers Aug. 25, 2009
7572719 Semiconductor device and manufacturing method thereof Aug. 11, 2009
7569444 Transistor and method for manufacturing thereof Aug. 4, 2009
7563663 Method of manufacturing semiconductor device with offset sidewall structure Jul. 21, 2009
7557396 Semiconductor device and method of manufacturing semiconductor device Jul. 7, 2009
7554156 Semiconductor device having a field effect transistor using a high dielectric constant gate insulating film and manufacturing method of the same Jun. 30, 2009
7538003 Method for fabricating MOS transistor May. 26, 2009
7527994 Amorphous silicon thin-film transistors and methods of making the same May. 5, 2009
7485515 Method of manufacturing metal oxide semiconductor Feb. 3, 2009
7459704 Ion source configuration for production of ionized clusters, ionized molecules and ionized mono-atoms Dec. 2, 2008
7459758 Transistor structure and method for making same Dec. 2, 2008
7452761 Hybrid SOI-bulk semiconductor transistors Nov. 18, 2008
7432144 Method for forming a transistor for reducing a channel length Oct. 7, 2008
7427549 Method of separating a structure in a semiconductor device Sep. 23, 2008
7393766 Process for integration of a high dielectric constant gate insulator layer in a CMOS device Jul. 1, 2008
7232720 Method for fabricating a semiconductor device having an insulation film with reduced water content Jun. 19, 2007
7217622 Semiconductor device and method of manufacturing the semiconductor device May. 15, 2007
7067855 Semiconductor structure having an abrupt doping profile Jun. 27, 2006
7060599 Method of forming shallow doped junctions having a variable profile gradation of dopants Jun. 13, 2006
7049664 Semiconductor device structures formed by ion-assisted oxidation May. 23, 2006
7005335 Array of nanoscopic mosfet transistors and fabrication methods Feb. 28, 2006
6982212 Method of manufacturing a semiconductor device Jan. 3, 2006
6982215 N type impurity doping using implantation of P.sub.2+ ions or As.sub.2+ Ions Jan. 3, 2006
6949803 Manufacturing process for a high voltage transistor integrated on a semiconductor substrate with non-volatile memory cells and corresponding transistor Sep. 27, 2005
6939769 Method for manufacturing a semiconductor device with using double implanting boron and boron difluoride Sep. 6, 2005
6929990 MOSFET with a thin gate insulating film Aug. 16, 2005
6878596 Method of forming high voltage junction in semiconductor device Apr. 12, 2005
6835612 Method for fabricating a MOSFET having a very small channel length Dec. 28, 2004
6812121 Process for forming a low resistivity titanium silicide layer on a silicon semiconductor substrate Nov. 2, 2004
6800543 Semiconductor device having a low-resistance gate electrode Oct. 5, 2004
6784033 Method for the manufacture of an insulated gate field effect semiconductor device Aug. 31, 2004
6780742 Undulated moat for reducing contact resistance Aug. 24, 2004
6780718 Transistor structure and method for making same Aug. 24, 2004
6770538 Ion-assisted oxidation methods and the resulting structures Aug. 3, 2004
6723621 Abrupt delta-like doping in Si and SiGe films by UHV-CVD Apr. 20, 2004
6717211 Shallow doped junctions with a variable profile gradation of dopants Apr. 6, 2004
6690070 Insulated gate semiconductor device and its manufacturing method Feb. 10, 2004
6667513 Semiconductor device with compensated threshold voltage and method for making same Dec. 23, 2003
6656799 Method for producing FET with source/drain region occupies a reduced area Dec. 2, 2003
6653687 Insulated gate semiconductor device Nov. 25, 2003
6642591 Field-effect transistor Nov. 4, 2003
6642560 MOSFET with a thin gate insulating film Nov. 4, 2003
6635938 Semiconductor device and manufacturing method thereof Oct. 21, 2003
6632728 Increasing the electrical activation of ion-implanted dopants Oct. 14, 2003
6599840 Material removal method for forming a structure Jul. 29, 2003
6596642 Material removal method for forming a structure Jul. 22, 2003
6596648 Material removal method for forming a structure Jul. 22, 2003
6593633 Method and device for improved salicide resistance on polysilicon gates Jul. 15, 2003
6593450 2,7-aryl-9-substituted fluorenes and 9-substituted fluorene oligomers and polymers Jul. 15, 2003

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