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Class Information
Number: 438/318
Name: Semiconductor device manufacturing: process > Forming bipolar transistor by formation or alteration of semiconductive active regions > Having heterojunction > Including isolation structure
Description: Process for making a heterojunction bipolar transistor which has structure so as to at least partially electrically isolate the device from laterally adjacent semiconductor regions.










Sub-classes under this class:

Class Number Class Name Patents
438/319 Air isolation (e.g., mesa, etc.) 95


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8637959 Vertical parasitic PNP device in a BiCMOS process and manufacturing method of the same Jan. 28, 2014
8420495 Manufacturing approach for collector and a buried layer of bipolar transistor Apr. 16, 2013
8222114 Manufacturing approach for collector and a buried layer of bipolar transistor Jul. 17, 2012
8120122 Self-aligned masks using multi-temperature phase-change materials Feb. 21, 2012
8101491 Heterojunction bipolar transistor Jan. 24, 2012
8048734 Bipolar transistor and method for making same Nov. 1, 2011
8039351 Method of fabricating hetero-junction bipolar transistor (HBT) Oct. 18, 2011
8022485 Transistor structure having reduced input capacitance Sep. 20, 2011
8018006 Semiconductor device having an enlarged space area surrounding an isolation trench for reducing thermal resistance and improving heat dissipation Sep. 13, 2011
7986029 Dual SOI structure Jul. 26, 2011
RE42423 Contact method for thin silicon carbide epitaxial layer and semiconductor devices formed by those methods Jun. 7, 2011
7939414 Ion implantation and process sequence to form smaller base pick-up May. 10, 2011
7923340 Method to reduce collector resistance of a bipolar transistor and integration into a standard CMOS flow Apr. 12, 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
7807579 Hydrogen ashing enhanced with water vapor and diluent gas Oct. 5, 2010
7807539 Ion implantation and process sequence to form smaller base pick-up Oct. 5, 2010
7776704 Method to build self-aligned NPN in advanced BiCMOS technology Aug. 17, 2010
RE41477 Semiconductor device with a reduced mask count buried layer Aug. 10, 2010
7718554 Focused laser beam processing May. 18, 2010
7696582 Semiconductor device Apr. 13, 2010
7615455 Integrated circuit bipolar transistor Nov. 10, 2009
7595253 Method of forming the semiconductor device Sep. 29, 2009
7557010 Method to improve writer leakage in a SiGe bipolar device Jul. 7, 2009
7462547 Method of fabricating a bipolar transistor having reduced collector-base capacitance Dec. 9, 2008
7422951 Method of fabricating self-aligned bipolar transistor Sep. 9, 2008
7354840 Method for opto-electronic integration on a SOI substrate Apr. 8, 2008
7354812 Multiple-depth STI trenches in integrated circuit fabrication Apr. 8, 2008
7303968 Semiconductor device and method having multiple subcollectors formed on a common wafer Dec. 4, 2007
7271011 Methods of implementing magnetic tunnel junction current sensors Sep. 18, 2007
7262483 Semiconductor device and method for manufacturing the same Aug. 28, 2007
7214593 Passivation for improved bipolar yield May. 8, 2007
7190046 Bipolar transistor having reduced collector-base capacitance Mar. 13, 2007
7186582 Process for deposition of semiconductor films Mar. 6, 2007
7176098 Semiconductor element and method for fabricating the same Feb. 13, 2007
7172914 Method of making uniform oxide layer Feb. 6, 2007
7151035 Semiconductor device and manufacturing method thereof Dec. 19, 2006
7148115 Semiconductor device and method for forming the same Dec. 12, 2006
7141479 Bipolar transistor and method for producing the same Nov. 28, 2006
7132701 Contact method for thin silicon carbide epitaxial layer and semiconductor devices formed by those methods Nov. 7, 2006
7118981 Method of fabricating an integrated silicon-germanium heterobipolar transistor and an integrated silicon-germanium heterobipolar transistor Oct. 10, 2006
7074685 Method of fabrication SiGe heterojunction bipolar transistor Jul. 11, 2006
7037798 Bipolar transistor structure with self-aligned raised extrinsic base and methods May. 2, 2006
7033896 Field effect transistor with a high breakdown voltage and method of manufacturing the same Apr. 25, 2006
7012009 Method for improving the electrical continuity for a silicon-germanium film across a silicon/oxide/polysilicon surface using a novel two-temperature process Mar. 14, 2006
7008852 Discontinuous dielectric interface for bipolar transistors Mar. 7, 2006
6984593 Beta control using a rapid thermal oxidation Jan. 10, 2006
6964907 Method of etching a lateral trench under an extrinsic base and improved bipolar transistor Nov. 15, 2005
6958253 Process for deposition of semiconductor films Oct. 25, 2005
6955957 Method of forming a floating gate in a flash memory device Oct. 18, 2005

1 2 3










 
 
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