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Class Information
Number: 257/E21.484
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 other than carbon, si, ge, sic, se, te, cu 2 o, cui, and group iii-v compounds with or without impurities, e.g., doping materials (epo) > Treatment of semiconductor body using process other than electromagnetic radiation (epo) > To change their surface-physical characteristics or shape, e.g., etching, polishing, cutting (epo) > Mechanical treatment, e.g., grinding, ultrasonic treatment (epo)
Description: This subclass is indented under subclass E21.483. This subclass is substantially the same in scope as ECLA classification H01L21/463.










Patents under this class:

Patent Number Title Of Patent Date Issued
8153508 Method for fabricating image sensor Apr. 10, 2012
7709381 Semiconductor device fabricating method May. 4, 2010
7682224 Method of machining substrate Mar. 23, 2010
7556983 Thin planar semiconductor device having electrodes on both surfaces and method of fabricating same Jul. 7, 2009
7456051 Photoelectric device grinding process and device grinding process Nov. 25, 2008
7358154 Method for fabricating packaged die Apr. 15, 2008
7265035 Semiconductor device and its manufacturing method Sep. 4, 2007
7256108 Method for reducing semiconductor die warpage Aug. 14, 2007
7199449 Wafer backside removal to complete through-holes and provide wafer singulation during the formation of a semiconductor device Apr. 3, 2007
7183178 Method of manufacturing semiconductor wafer Feb. 27, 2007
7157376 Method and apparatus for handling thin semiconductor wafers Jan. 2, 2007
5763325 Fabrication process of a semiconductor device using a slurry containing manganese oxide Jun. 9, 1998
4564494 Encapsulant of CdTe boules for multiblade wafering Jan. 14, 1986
4490441 Encapsulated CDTe boules for multiblade wafering Dec. 25, 1984











 
 
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