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Class Information
Number: 438/317
Name: Semiconductor device manufacturing: process > Forming bipolar transistor by formation or alteration of semiconductive active regions > Having heterojunction > Wide bandgap emitter
Description: Process for making a heterojunction bipolar transistor with an active region which involves a charge carrier emitter










Patents under this class:
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Patent Number Title Of Patent Date Issued
8653627 Bipolar semiconductor device and manufacturing method thereof Feb. 18, 2014
8574994 HBT with emitter electrode having planar side walls Nov. 5, 2013
8557670 SOI lateral bipolar junction transistor having a wide band gap emitter contact Oct. 15, 2013
8460994 Bipolar semiconductor device and manufacturing method thereof Jun. 11, 2013
8450146 Transistor assembly and method for manufacturing the same May. 28, 2013
8110472 High power and high temperature semiconductor power devices protected by non-uniform ballasted sources Feb. 7, 2012
8044485 Semiconductor device Oct. 25, 2011
7892943 Isolation trenches for memory devices Feb. 22, 2011
7888199 PNP light emitting transistor and method Feb. 15, 2011
7875523 HBT with emitter electrode having planar side walls Jan. 25, 2011
7723198 Integrated semiconductor cascode circuit for high-frequency applications May. 25, 2010
7638820 Contact method for thin silicon carbide epitaxial layer and semiconductor devices formed by those methods Dec. 29, 2009
7482237 Semiconductor device and method of producing the same, and power conversion apparatus incorporating this semiconductor device Jan. 27, 2009
7208387 Method for manufacturing compound semiconductor wafer and compound semiconductor device Apr. 24, 2007
7192838 Method of producing complementary SiGe bipolar transistors Mar. 20, 2007
7176098 Semiconductor element and method for fabricating the same Feb. 13, 2007
7119382 Heterobipolar transistor and method of fabricating the same Oct. 10, 2006
7118982 Emitter and method of making Oct. 10, 2006
7091082 Semiconductor method and device Aug. 15, 2006
7030462 Heterojunction bipolar transistor having specified lattice constants Apr. 18, 2006
7005362 Method of fabricating a thin film transistor Feb. 28, 2006
6953728 Semiconductor device and method of manufacturing thereof Oct. 11, 2005
6924201 Heterojunction bipolar transistor and method of producing the same Aug. 2, 2005
6917061 AlGaAs or InGaP low turn-on voltage GaAs-based heterojunction bipolar transistor Jul. 12, 2005
6905929 Single poly EPROM cell having smaller size and improved data retention compatible with advanced CMOS process Jun. 14, 2005
6894362 Method and apparatus for a self-aligned heterojunction bipolar transistor using dielectric assisted metal liftoff process May. 17, 2005
6873029 Self-aligned bipolar transistor Mar. 29, 2005
6855948 Low base-emitter voltage heterojunction bipolar transistor Feb. 15, 2005
6847063 Semiconductor device Jan. 25, 2005
6847062 Semiconductor device Jan. 25, 2005
6818520 Method for controlling critical dimension in an HBT emitter Nov. 16, 2004
6806512 InPSb/InAs BJT device and method of making Oct. 19, 2004
6797580 Method for fabricating a bipolar transistor in a BiCMOS process and related structure Sep. 28, 2004
6784064 Heterojunction bipolar transistor and method of making heterojunction bipolar transistor Aug. 31, 2004
6768139 Transistor configuration for a bandgap circuit Jul. 27, 2004
6762106 Semiconductor device and method for fabricating the same Jul. 13, 2004
6727146 Semiconductor device and method of manufacturing thereof Apr. 27, 2004
6673687 Method for fabrication of a heterojunction bipolar transistor Jan. 6, 2004
6660607 Method for fabricating heterojunction bipolar transistors Dec. 9, 2003
6661037 Low emitter resistance contacts to GaAs high speed HBT Dec. 9, 2003
6649458 Method for manufacturing semiconductor device with hetero junction bipolar transistor Nov. 18, 2003
6589850 Method and system for fabricating a bipolar transistor and related structure Jul. 8, 2003
6586298 Method of forming high performance bipolar transistor Jul. 1, 2003
6528378 Semiconductor device Mar. 4, 2003
6482711 InPSb/InAs BJT device and method of making Nov. 19, 2002
6326650 Method of forming a semiconductor structure Dec. 4, 2001
6310368 Semiconductor device and method for fabricating same Oct. 30, 2001
6271097 Method of fabricating a low base-resistance bipolar transistor Aug. 7, 2001
6261917 High-K MOM capacitor Jul. 17, 2001
6165859 Method for making InP heterostructure devices Dec. 26, 2000

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