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Class Information
Number: 257/E21.6
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 devices consisting of plurality of solid-state components formed in or on common substrate or of parts thereof; manufacture of integrated circuit devices or of parts thereof (epo) > Manufacture or treatment of devices consisting of plurality of solid-state components or integrated circuits formed in, or on, common substrate (epo) > With subsequent division of substrate into plural individual devices (epo) > Involving separation of active layers from substrate (epo)
Description: This subclass is indented under subclass E21.599. This subclass is substantially the same in scope as ECLA classification H01L21/78B.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.601 Leaving reusable substrate, e.g., epitaxial lift-off process (epo) 23


Patents under this class:
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Patent Number Title Of Patent Date Issued
8709912 Semiconductor device manufacturing method and device for same Apr. 29, 2014
8592291 Fabrication of large-area hexagonal boron nitride thin films Nov. 26, 2013
8536023 Method of manufacturing a semiconductor device and structure Sep. 17, 2013
8524572 Methods of processing units comprising crystalline materials, and methods of forming semiconductor-on-insulator constructions Sep. 3, 2013
8524573 Method for separating a semiconductor layer from a substrate by irradiating with laser pulses Sep. 3, 2013
8482075 Structure and method for manufacturing asymmetric devices Jul. 9, 2013
8470621 Method for fabricating a flip-chip semiconductor optoelectronic device Jun. 25, 2013
8415208 Semiconductor device and peeling off method and method of manufacturing semiconductor device Apr. 9, 2013
8399272 Method of manufacturing semiconductor light emitting element Mar. 19, 2013
8389381 Processes for forming backplanes for electro-optic displays Mar. 5, 2013
8367442 Method of manufacturing semiconductor light emitting element Feb. 5, 2013
8173520 Semiconductor device and manufacturing method thereof May. 8, 2012
8137417 Peeling apparatus and manufacturing apparatus of semiconductor device Mar. 20, 2012
8119499 Semiconductor substrate fabrication by etching of a peeling layer Feb. 21, 2012
8088670 Method for manufacturing bonded substrate with sandblast treatment Jan. 3, 2012
8062960 Compound semiconductor device and method of manufacturing compound semiconductor device Nov. 22, 2011
8021964 Method of producing segmented chips Sep. 20, 2011
8012854 Semiconductor device and manufacturing method thereof Sep. 6, 2011
7994025 Wafer processing method without occurrence of damage to device area Aug. 9, 2011
7989304 Method for transferring semiconductor element, method for manufacturing semiconductor device, and semiconductor device Aug. 2, 2011
7955969 Ultra thin FET Jun. 7, 2011
7951687 Method of manufacturing a flexible electronic device and flexible device May. 31, 2011
7932111 Substrate removal process for high light extraction LEDs Apr. 26, 2011
7897482 Semiconductor device and manufacturing method thereof Mar. 1, 2011
7892867 Method for manufacturing flexible display panel Feb. 22, 2011
7875510 Thin-film device, method for manufacturing the same, and electronic apparatus Jan. 25, 2011
7867805 Structure replication through ultra thin layer transfer Jan. 11, 2011
7791190 Substrate with crystal silicon array Sep. 7, 2010
7785988 Processes for forming backplanes for electro-optic displays Aug. 31, 2010
7749829 Step height reduction between SOI and EPI for DSO and BOS integration Jul. 6, 2010
7736948 Method of manufacturing a plurality of semiconductor devices and carrier substrate Jun. 15, 2010
7709283 Method of manufacturing a semiconductor device having an insulating protective film covering at least a portion of a tile-shaped element May. 4, 2010
7678668 Manufacturing method of SOI substrate and manufacturing method of semiconductor device Mar. 16, 2010
7611965 Semiconductor device and manufacturing method thereof Nov. 3, 2009
7595256 Semiconductor device, method of manufacturing thereof, and method of manufacturing base material Sep. 29, 2009
7531430 Method for producing a semiconductor-on-insulator structure May. 12, 2009
7479442 Method of manufacturing single crystal Si film Jan. 20, 2009
7476596 Doped elongated semiconductors, growing such semiconductors, devices including such semiconductors, and fabricating such devices Jan. 13, 2009
7420263 DBG system and method with adhesive layer severing Sep. 2, 2008
7387946 Method of fabricating a substrate for a planar, double-gated, transistor process Jun. 17, 2008
7387947 Method for transferring a thin layer including a controlled disturbance of a crystalline structure Jun. 17, 2008
7364958 CMOS on hybrid substrate with different crystal orientations using silicon-to-silicon direct wafer bonding Apr. 29, 2008
7351644 Thin handle substrate method and structure for fabricating devices using one or more films provided by a layer transfer process Apr. 1, 2008
7341925 Method for transferring a semiconductor body from a growth substrate to a support material Mar. 11, 2008
7307006 Method of manufacturing semiconductor device Dec. 11, 2007
7279401 Fabricating method for flexible thin film transistor array substrate Oct. 9, 2007
7256443 Semiconductor memory and method of manufacturing the same Aug. 14, 2007
7169682 Method for manufacturing semiconductor device Jan. 30, 2007
7163875 Method of cutting an object and of further processing the cut material, and carrier for holding the object and the cut material Jan. 16, 2007
7157352 Method for producing ultra-thin semiconductor device Jan. 2, 2007

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