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Class Information
Number: 257/E21.317
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) > Treatment of semiconductor body using process other than deposition of semiconductor material on a substrate, diffusion or alloying of impurity material, or radiation treatment (epo) > To modify their internal properties, e.g., to produce internal imperfections (epo)
Description: This subclass is indented under subclass E21.211. This subclass is substantially the same in scope as ECLA classification H01L21/322.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.322 Of group iii-v compound, e.g., to make them semi-insulating (epo) 17
257/E21.318 Of silicon body, e.g., for gettering (epo) 337


Patents under this class:

Patent Number Title Of Patent Date Issued
8658516 Method of producing silicon wafer, epitaxial wafer and solid state image sensor, and device for producing silicon wafer Feb. 25, 2014
8638001 Adhesive sheet for producing semiconductor device Jan. 28, 2014
8629044 Method of producing silicon wafer, epitaxial wafer and solid state image sensor, and device for producing silicon wafer Jan. 14, 2014
8587025 Method for forming laterally varying doping concentrations and a semiconductor device Nov. 19, 2013
8575652 Semiconductor device and manufacturing method thereof Nov. 5, 2013
8492248 Manufacturing method of semiconductor substrate Jul. 23, 2013
8440551 Plasma doping method and manufacturing method of semiconductor device May. 14, 2013
8383496 Plasma doping method and manufacturing method of semiconductor device Feb. 26, 2013
8377799 Method of manufacturing SOI substrate Feb. 19, 2013
8338269 Methods and apparatus for producing semiconductor on insulator structures using directed exfoliation Dec. 25, 2012
8324084 Manufacturing method of semiconductor substrate and manufacturing method of semiconductor device Dec. 4, 2012
8273624 Plasma immersed ion implantation process using balanced etch-deposition process Sep. 25, 2012
8242033 High throughput recrystallization of semiconducting materials Aug. 14, 2012
8236709 Method of fabricating a device using low temperature anneal processes, a device and design structure Aug. 7, 2012
8196546 Semiconductor structure made using improved multiple ion implantation process Jun. 12, 2012
8143142 Method of fabricating epi-wafer, epi-wafer fabricated by the method, and image sensor fabricated using the epi-wafer Mar. 27, 2012
8129261 Conformal doping in P3I chamber Mar. 6, 2012
8076727 Magnesium-doped zinc oxide structures and methods Dec. 13, 2011
8058148 Methods and apparatus for producing semiconductor on insulator structures using directed exfoliation Nov. 15, 2011
8021962 Functional film containing structure and method of manufacturing functional film Sep. 20, 2011
8003493 Method of splitting a substrate Aug. 23, 2011
7939859 Solid state imaging device and method for manufacturing the same May. 10, 2011
7867884 Sample wafer fabrication method Jan. 11, 2011
7855132 Method of manufacturing bonded wafer Dec. 21, 2010
7820524 Manufacturing method of SOI substrate and manufacturing method of semiconductor device Oct. 26, 2010
7816225 Methods and apparatus for producing semiconductor on insulator structures using directed exfoliation Oct. 19, 2010
7799662 Power semiconductor device with soft switching characteristic and manufacturing method for same Sep. 21, 2010
7795111 Manufacturing method of SOI substrate and manufacturing method of semiconductor device Sep. 14, 2010
7718515 Method for fabricating semiconductor device May. 18, 2010
7666761 Semiconductor device and manufacturing method thereof Feb. 23, 2010
7615471 Method for producing a tensioned layer on a substrate, and a layer structure Nov. 10, 2009
7611970 Wafer processing method Nov. 3, 2009
7611972 Semiconductor devices and methods of manufacture thereof Nov. 3, 2009
7517776 Method for controlling dislocation positions in silicon germanium buffer layers Apr. 14, 2009
7514365 Method of fabricating opening and plug Apr. 7, 2009
7498230 Magnesium-doped zinc oxide structures and methods Mar. 3, 2009
7494851 Thin film transistor array substrate and method for manufacturing the same Feb. 24, 2009
7416931 Methods for fabricating a stress enhanced MOS circuit Aug. 26, 2008
6987072 Method of producing semiconductor crystal Jan. 17, 2006
6838395 Method for fabricating a semiconductor crystal Jan. 4, 2005
6780796 Method of forming relaxed SiGe layer Aug. 24, 2004
6746902 Method to form relaxed sige layer with high ge content Jun. 8, 2004
6538285 Silicon wafer Mar. 25, 2003
6333279 Method for producing silicon wafer and silicon wafer Dec. 25, 2001
5710077 Method for the generation of stacking-fault-induced damage on the back of semiconductor wafers Jan. 20, 1998
4885257 Gettering process with multi-step annealing and inert ion implantation Dec. 5, 1989
4579601 Method of growing a resistive epitaxial layer on a short lifetime epi-layer Apr. 1, 1986











 
 
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