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Class Information
Number: 257/E21.318
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) > Of silicon body, e.g., for gettering (epo)
Description: This subclass is indented under subclass E21.317. This subclass is substantially the same in scope as ECLA classification H01L21/322B.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.32 Of silicon on insulator (soi) (epo) 407
257/E21.321 Thermally inducing defects using oxygen present in silicon body for intrinsic gettering (epo) 212
257/E21.319 Using cavities formed by inert gas ion implantation, e.g., hydrogen, noble gas (epo) 72


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

Patent Number Title Of Patent Date Issued
8664746 Gettering method for dielectrically isolated devices Mar. 4, 2014
8658516 Method of producing silicon wafer, epitaxial wafer and solid state image sensor, and device for producing silicon wafer Feb. 25, 2014
8642449 Silicon wafer Feb. 4, 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
8575661 Solid-state image pick-up device and manufacturing method thereof, image-pickup apparatus, semiconductor device and manufacturing method thereof, and semiconductor substrate Nov. 5, 2013
8569149 Method of treating a semiconductor device Oct. 29, 2013
8569175 Method for dry chemical treatment of substrates and also use thereof Oct. 29, 2013
8524002 Silicon wafer and method for producing the same Sep. 3, 2013
8497208 Semiconductor device and method for manufacturing the same Jul. 30, 2013
8476149 Method of manufacturing single crystal silicon wafer from ingot grown by Czocharlski process with rapid heating/cooling process Jul. 2, 2013
8377202 Method for manufacturing silicon wafer and silicon wafer manufactured by this method Feb. 19, 2013
8362530 Semiconductor device including MISFET and its manufacture method Jan. 29, 2013
8357592 Method and apparatus for manufacturing semiconductor substrate dedicated to semiconductor device, and method and apparatus for manufacturing semiconductor device Jan. 22, 2013
8349646 Semiconductor wafer for semiconductor components and production method Jan. 8, 2013
8343853 Semiconductor wafer, semiconductor device using the same, and method and apparatus for producing the same Jan. 1, 2013
8329563 Semiconductor device including a gettering layer and manufacturing method therefor Dec. 11, 2012
8324084 Manufacturing method of semiconductor substrate and manufacturing method of semiconductor device Dec. 4, 2012
8316745 Semiconductor wafer pre-process annealing and gettering method and system for solar cell formation Nov. 27, 2012
8309436 Method of producing epitaxial substrate with gettering for solid-state imaging device, and method of producing solid-state imaging device using same substrate Nov. 13, 2012
8293613 Gettering structures and methods and their application Oct. 23, 2012
8273644 Soldering method and method of manufacturing semiconductor device including soldering method Sep. 25, 2012
8268705 Method for producing SOI wafer Sep. 18, 2012
8241941 Method of purifying a crystalline silicon substrate and process for producing a photovoltaic cell Aug. 14, 2012
8227299 Removal of impurities from semiconductor device layers Jul. 24, 2012
8207048 Method for producing ordered nanostructures Jun. 26, 2012
8187954 Method for manufacturing silicon single crystal wafer May. 29, 2012
8187959 Semiconductor substrate with solid phase epitaxial regrowth with reduced junction leakage and method of producing same May. 29, 2012
8173523 Method of removing heavy metal in semiconductor substrate May. 8, 2012
8143142 Method of fabricating epi-wafer, epi-wafer fabricated by the method, and image sensor fabricated using the epi-wafer Mar. 27, 2012
8138066 Dislocation engineering using a scanned laser Mar. 20, 2012
8124501 Method of producing semiconductor wafer Feb. 28, 2012
8124502 Semiconductor device manufacturing method, semiconductor device and semiconductor device manufacturing installation Feb. 28, 2012
8119461 Reducing the creation of charge traps at gate dielectrics in MOS transistors by performing a hydrogen treatment Feb. 21, 2012
8110451 Method for manufacturing light emitting device Feb. 7, 2012
8101999 SOI substrate and method for producing the same, solid-state image pickup device and method for producing the same, and image pickup apparatus Jan. 24, 2012
8093089 Methods of manufacturing image sensors including gettering regions Jan. 10, 2012
8093719 Seal ring for preventing crack propagation in integrated circuit devices Jan. 10, 2012
8084286 Solid-state imaging device, camera and method of producing the solid-state imaging device Dec. 27, 2011
8080449 Method for manufacturing thin-film transistors Dec. 20, 2011
8030184 Epitaxial wafer and method of producing the same Oct. 4, 2011
8008107 Semiconductor wafer pre-process annealing and gettering method and system for solar cell formation Aug. 30, 2011
8003493 Method of splitting a substrate Aug. 23, 2011
7993987 Surface cleaning using sacrificial getter layer Aug. 9, 2011
7943494 Method for blocking dislocation propagation of semiconductor May. 17, 2011
7915145 Silicon substrate and manufacturing method thereof Mar. 29, 2011
7867920 Method for modifying high-k dielectric thin film and semiconductor device Jan. 11, 2011
7868360 Semiconductor device with heat-resistant gate Jan. 11, 2011
7816279 Semiconductor device and method for manufacturing the same Oct. 19, 2010
7776723 Method of manufacturing an epitaxial semiconductor substrate and method of manufacturing a semiconductor device Aug. 17, 2010

1 2 3 4 5 6 7










 
 
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