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Class Information
Number: 257/553
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Integrated circuit structure with electrically isolated components > With pn junction isolation > With bipolar transistor structure > Transistors of same conductivity type (e.g., npn) having different current gain or different operating voltage characteristics
Description: Subject matter wherein plural bipolar transistor structures are present which have the same electrical conductivity type (e.g., npn) but have different current gain or different operating voltage characteristics.

Patents under this class:

Patent Number Title Of Patent Date Issued
8304857 Semiconductor device Nov. 6, 2012
8026569 Semiconductor device Sep. 27, 2011
7969186 Apparatus and method for forming a mixed signal circuit with fully customizable analog cells and programmable interconnect Jun. 28, 2011
7718494 Method for forming high-drain-voltage tolerance MOSFET transistor in a CMOS process flow with double well dose approach May. 18, 2010
7704814 Method for manufacturing MOS transistor of semiconductor device Apr. 27, 2010
7638856 Optoelectronic transmitter integrated circuit and method of fabricating the same using selective growth process Dec. 29, 2009
7521733 Method for manufacturing an integrated circuit and integrated circuit with a bipolar transistor and a hetero bipolar transistor Apr. 21, 2009
7276744 Semiconductor device and method of manufacturing the same Oct. 2, 2007
7026690 Memory devices and electronic systems comprising integrated bipolar and FET devices Apr. 11, 2006
6977426 Semiconductor device including high speed transistors and high voltage transistors disposed on a single substrate Dec. 20, 2005
6933588 High performance SCR-like BJT ESD protection structure Aug. 23, 2005
6787795 Logic apparatus and logic circuit Sep. 7, 2004
6693344 Semiconductor device having low and high breakdown voltage transistors Feb. 17, 2004
6495896 Semiconductor integrated circuit device with high and low voltage wells Dec. 17, 2002
6104080 Integrated circuit having capacitors for smoothing a supply voltage Aug. 15, 2000
6084286 Integrated device in an emitter switching configuration and with a cellular structure Jul. 4, 2000
5994740 Semiconductor device Nov. 30, 1999
5976940 Method of making plurality of bipolar transistors Nov. 2, 1999
5892268 Inductive load driving and control circuits inside isolation regions Apr. 6, 1999
5708287 Power semiconductor device having an active layer Jan. 13, 1998
5545918 Circuit construction for controlling saturation of a transistor Aug. 13, 1996
5523606 BiCMOS semiconductor device having SiGe heterojunction and Si homo-junction transistors Jun. 4, 1996
5508551 Current mirror with saturation limiting Apr. 16, 1996
5500551 Integrated emitter switching configuration using bipolar transistors Mar. 19, 1996
5426328 BICDMOS structures Jun. 20, 1995
5300805 Epitaxial tub bias structure for integrated circuits Apr. 5, 1994
5151765 Semiconductor device comprising high-speed and high-current transistors formed in a common substrate and having matched characteristics Sep. 29, 1992
5121185 Monolithic semiconductor IC device including blocks having different functions with different breakdown voltages Jun. 9, 1992
4935800 Semiconductor integrated circuit Jun. 19, 1990
4807011 Semiconductor integrated circuit incorporating SITS Feb. 21, 1989
4536784 Semiconductor device having a junction capacitance, an integrated injection logic circuit and a transistor in a semiconductor body Aug. 20, 1985
4458158 IC Including small signal and power devices Jul. 3, 1984
4412142 Integrated circuit incorporating low voltage and high voltage semiconductor devices Oct. 25, 1983
4228448 Bipolar integrated semiconductor structure including I.sup.2 L and linear type devices and fabrication methods therefor Oct. 14, 1980
4202006 Semiconductor integrated circuit device May. 6, 1980
4189738 Semiconductor integrated circuit device Feb. 19, 1980
4136353 Bipolar transistor with high-low emitter impurity concentration Jan. 23, 1979
4047217 High-gain, high-voltage transistor for linear integrated circuits Sep. 6, 1977
4047220 Bipolar transistor structure having low saturation resistance Sep. 6, 1977
4030954 Method of manufacturing a semiconductor integrated circuit device Jun. 21, 1977
3969748 Integrated multiple transistors with different current gains Jul. 13, 1976
3961340 Integrated circuit having bipolar transistors and method of manufacturing said circuit Jun. 1, 1976
3946336 Microwave solid state circuit employing a bipolar transistor structure Mar. 23, 1976

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