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Class Information
Number: 257/E21.229
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 change their surface-physical characteristics or shape, e.g., etching, polishing, cutting (epo) > Chemical or electrical treatment, e.g., electrolytic etching (epo) > Chemical cleaning (epo) > Combining dry and wet cleaning steps (epo)
Description: This subclass is indented under subclass E21.224. This subclass is substantially the same in scope as ECLA classification H01L21/306N6.










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

Patent Number Title Of Patent Date Issued
8709957 Spalling utilizing stressor layer portions Apr. 29, 2014
8703605 High yield and high throughput method for the manufacture of integrated circuit devices of improved integrity, performance and reliability Apr. 22, 2014
8680646 Self-aligned carbon electronics with embedded gate electrode Mar. 25, 2014
8673676 Surface processing method of silicon substrate for solar cell, and manufacturing method of solar cell Mar. 18, 2014
8669187 Porous lift-off layer for selective removal of deposited films Mar. 11, 2014
8658538 Method of fabricating memory device Feb. 25, 2014
8633105 Method of fabricating a self-aligning damascene memory structure Jan. 21, 2014
8618615 Semiconductor device and fabrication method thereof Dec. 31, 2013
8618668 Semiconductor contact barrier Dec. 31, 2013
8563374 Strained semiconductor devices having asymmetrical heterojunction structures and methods for the fabrication thereof Oct. 22, 2013
8551836 Semiconductor device and method of manufacturing the same Oct. 8, 2013
8552501 Method of forming an inverted T shaped channel structure for an inverted T channel field effect transistor device Oct. 8, 2013
8546262 Solid-state image pickup device, method of manufacturing the same and electronic apparatus Oct. 1, 2013
8536699 Semiconductor device manufacturing method and semiconductor device manufacturing apparatus Sep. 17, 2013
8524602 Method for forming vias in a substrate Sep. 3, 2013
8525289 Adjusting threshold voltage for sophisticated transistors by diffusing a gate dielectric cap layer material prior to gate dielectric stabilization Sep. 3, 2013
8492196 Semiconductor device and method of forming prefabricated EMI shielding frame with cavities containing penetrable material over semiconductor die Jul. 23, 2013
8492186 Method for producing group III nitride semiconductor layer, group III nitride semiconductor light-emitting device, and lamp Jul. 23, 2013
8481393 Semiconductor substrate and method for manufacturing the same, and method for manufacturing semiconductor device Jul. 9, 2013
8471321 Semiconductor device comprising capacitor and method of fabricating the same Jun. 25, 2013
8455365 Self-aligned carbon electronics with embedded gate electrode Jun. 4, 2013
8445387 Epitaxial silicon growth May. 21, 2013
8440536 Mask layout and method for forming vertical channel transistor in semiconductor device using the same May. 14, 2013
8441027 Light emitting device and light emitting device package May. 14, 2013
8436439 Semiconductor device and method of forming a shielding layer over a semiconductor die after forming a build-up interconnect structure May. 7, 2013
8426925 Memory device and method of fabricating the same Apr. 23, 2013
8420439 Method of producing a radiation-emitting thin film component and radiation-emitting thin film component Apr. 16, 2013
8415721 Field side sub-bitline nor flash array and method of fabricating the same Apr. 9, 2013
8415728 Memory device and method of fabricating the same Apr. 9, 2013
8410002 Semiconductor device and manufacturing method thereof Apr. 2, 2013
8399357 Method of manufacturing semiconductor device Mar. 19, 2013
8389417 Semiconductor device and manufacturing method thereof Mar. 5, 2013
8389399 Method of fabricating a self-aligning damascene memory structure Mar. 5, 2013
8389376 Air gap integration scheme Mar. 5, 2013
8384135 Phase-change random access memory device and method of manufacturing the same Feb. 26, 2013
8368134 Nonvolatile memory device and method for fabricating the same Feb. 5, 2013
8354328 Semiconductor device manufacturing method and semiconductor device Jan. 15, 2013
8344395 Light-emitting diode and manufacturing method thereof Jan. 1, 2013
8329559 Damascene process for use in fabricating semiconductor structures having micro/nano gaps Dec. 11, 2012
8324633 Ultra high thermal performance packaging for optoelectronics devices Dec. 4, 2012
8314422 Light emitting device, light emitting device package and lighting system Nov. 20, 2012
8294274 Semiconductor contact barrier Oct. 23, 2012
8288184 Production method of semiconductor device and semiconductor device Oct. 16, 2012
8288217 Stressor in planar field effect transistor device Oct. 16, 2012
8278186 Wafer cleaning method and wafer bonding method using the same Oct. 2, 2012
8268675 Passivation layer for semiconductor device packaging Sep. 18, 2012
8269318 MOS device Sep. 18, 2012
8263421 Manufacturing method of semiconductor device Sep. 11, 2012
8258065 Passive elements, articles, packages, semiconductor composites, and methods of manufacturing same Sep. 4, 2012
8232137 Heat conduction for chip stacks and 3-D circuits Jul. 31, 2012

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