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Class Information
Number: 257/E21.608
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) > To produce devices each consisting of plurality of components, e.g., integrated circuits (epo) > Substrate being semiconductor, using silicon technology (epo) > Bipolar technology (epo)
Description: This subclass is indented under subclass E21.606. This subclass is substantially the same in scope as ECLA classification H01L21/8222.










Sub-classes under this class:

Class Number Class Name Patents
257/E21.611 Complementary devices, e.g., complementary transistors (epo) 50
257/E21.609 Comprising combination of vertical and lateral transistors (epo) 43
257/E21.61 Comprising merged transistor logic or integrated injection logic (epo) 67
257/E21.613 Memory structures (epo) 139


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8703571 Methods of fabricating bipolar junction transistors having a fin Apr. 22, 2014
8648443 Bipolar transistor with improved stability Feb. 11, 2014
8637959 Vertical parasitic PNP device in a BiCMOS process and manufacturing method of the same Jan. 28, 2014
8598008 Stacked ESD clamp with reduced variation in clamp voltage Dec. 3, 2013
8592860 Apparatus and method for protection of electronic circuits operating under high stress conditions Nov. 26, 2013
8587224 Variable gate field-effect transistor and electrical and electronic apparatus including the same Nov. 19, 2013
8580644 Multi-level lateral floating coupled capacitor transistor structures Nov. 12, 2013
8502478 Variable gate field-effect transistor and electrical and electronic apparatus including the same Aug. 6, 2013
8450179 Semiconductor device having a first bipolar device and a second bipolar device and method for fabrication May. 28, 2013
8420475 Parasitic vertical PNP bipolar transistor and its fabrication method in BiCMOS process Apr. 16, 2013
8410572 Bipolar transistor with emitter and/or collector contact structure forming a Schottky contact and method of production Apr. 2, 2013
8390092 Area-efficient high voltage bipolar-based ESD protection targeting narrow design windows Mar. 5, 2013
8343843 Monolithic microwave integrated circuit device and method for forming the same Jan. 1, 2013
8299579 Method for generating a signal representative of the current delivered to a load by a power device and relative power device Oct. 30, 2012
8263470 Method of fabricating semiconductor device Sep. 11, 2012
8242566 Stacked ESD protection Aug. 14, 2012
8178948 Electrostatic discharge protection circuit May. 15, 2012
8124489 Monolithic microwave integrated circuit device and method of forming the same Feb. 28, 2012
8076211 Fabricating bipolar junction select transistors for semiconductor memories Dec. 13, 2011
8039351 Method of fabricating hetero-junction bipolar transistor (HBT) Oct. 18, 2011
8026146 Method of manufacturing a bipolar transistor Sep. 27, 2011
8003475 Method for fabricating a transistor structure Aug. 23, 2011
7955941 Method of forming an integrated semiconductor device and structure therefor Jun. 7, 2011
7939416 Method of making bipolar transistor May. 10, 2011
7932145 Method of forming a bipolar transistor and semiconductor component thereof Apr. 26, 2011
7872326 Array of vertical bipolar junction transistors, in particular selectors in a phase change memory device Jan. 18, 2011
7838374 Method of manufacturing a bipolar transistor Nov. 23, 2010
7777255 Bipolar transistor with raised base connection region and process for the production thereof Aug. 17, 2010
7638415 Method for reducing dislocation threading using a suppression implant Dec. 29, 2009
7538004 Method of fabrication for SiGe heterojunction bipolar transistor (HBT) May. 26, 2009
7473610 Local collector implant structure for heterojunction bipolar transistors and method of forming the same Jan. 6, 2009
7466009 Method for reducing dislocation threading using a suppression implant Dec. 16, 2008
7462546 Collector tailored structures for integration of binary junction transistors Dec. 9, 2008
7442617 Method for manufacturing bipolar transistor Oct. 28, 2008
7425754 Structure and method of self-aligned bipolar transistor having tapered collector Sep. 16, 2008
7390720 Local collector implant structure for heterojunction bipolar transistors and method of forming the same Jun. 24, 2008
7387909 Methods of forming assemblies displaying differential negative resistance Jun. 17, 2008
7371650 Method for producing a transistor structure May. 13, 2008
7342294 SOI bipolar transistors with reduced self heating Mar. 11, 2008
7329584 Method for manufacturing bipolar transistor Feb. 12, 2008
7115465 Method for manufacturing a bipolar transistor Oct. 3, 2006
7015139 Two-dimensionally arrayed quantum device Mar. 21, 2006
7001806 Semiconductor structure with increased breakdown voltage and method for producing the semiconductor structure Feb. 21, 2006
6987039 Forming lateral bipolar junction transistor in CMOS flow Jan. 17, 2006
6977426 Semiconductor device including high speed transistors and high voltage transistors disposed on a single substrate Dec. 20, 2005
6975924 Method and apparatus for controlling the strategy of compounding pharmaceutical admixtures Dec. 13, 2005
6838734 ESD implantation in deep-submicron CMOS technology for high-voltage-tolerant applications Jan. 4, 2005
6762094 Nanometer-scale semiconductor devices and method of making Jul. 13, 2004
6737721 Shallow trench isolation structure for a bipolar transistor May. 18, 2004
RE38510 Manufacturing process for a monolithic semiconductor device comprising at least one transistor of an integrated control circuit and one power transistor integrated on the same chip May. 4, 2004

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