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Class Information
Number: 257/560
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Integrated circuit structure with electrically isolated components > Lateral bipolar transistor structure > With multiple collectors or emitters
Description: Subject matter wherein the device has more than one collector region or more than one emitter region.

Sub-classes under this class:

Class Number Class Name Patents
257/562 With auxiliary collector/re-emitter between emitter and output collector (e.g., "current hogging logic" device) 26
257/561 With different emitter to collector spacings or facing areas 49

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8212291 Inverse mode SiGe HBT cascode device and fabrication method Jul. 3, 2012
8030167 Varied impurity profile region formation for varying breakdown voltage of devices Oct. 4, 2011
8022496 Semiconductor structure and method of manufacture Sep. 20, 2011
8004022 Field effect transistor Aug. 23, 2011
7893478 Semiconductor storage device and driving method thereof Feb. 22, 2011
7859082 Lateral bipolar transistor and method of production Dec. 28, 2010
7847374 Non-volatile memory cell array and logic Dec. 7, 2010
7843038 High linearity digital variable gain amplifier Nov. 30, 2010
7704824 Semiconductor layer Apr. 27, 2010
7576409 Group III-V compound semiconductor based heterojuncton bipolar transistors with various collector profiles on a common wafer Aug. 18, 2009
7414298 Super self-aligned collector device for mono-and hetero bipolar junction transistors, and method of making same Aug. 19, 2008
7329925 Device for electrostatic discharge protection Feb. 12, 2008
7276744 Semiconductor device and method of manufacturing the same Oct. 2, 2007
7239007 Bipolar transistor with divided base and emitter regions Jul. 3, 2007
7235860 Bipolar transistor including divided emitter structure Jun. 26, 2007
7173320 High performance lateral bipolar transistor Feb. 6, 2007
7098113 Method and system for providing a power lateral PNP transistor using a buried power buss Aug. 29, 2006
7075156 Collector structure for electrostatic discharge protection circuits Jul. 11, 2006
7071500 Semiconductor device and manufacturing method for the same Jul. 4, 2006
6962842 Method of removing a sacrificial emitter feature in a BICMOS process with a super self-aligned BJT Nov. 8, 2005
6906410 Semiconductor device and method for manufacturing same Jun. 14, 2005
6870242 Method for manufacturing and structure of semiconductor device with polysilicon definition structure Mar. 22, 2005
6864538 Protection device against electrostatic discharges Mar. 8, 2005
6841829 Self protecting bipolar SCR Jan. 11, 2005
6798040 Power semiconductor switch Sep. 28, 2004
6770953 Bipolar transistor Aug. 3, 2004
6768183 Semiconductor device having bipolar transistors Jul. 27, 2004
6753592 Multi-technology complementary bipolar output using polysilicon emitter and buried power buss with low temperature processing Jun. 22, 2004
6703647 Triple base bipolar phototransistor Mar. 9, 2004
6703685 Super self-aligned collector device for mono-and hetero bipolar junction transistors Mar. 9, 2004
6674147 Semiconductor device having a bipolar transistor structure Jan. 6, 2004
6664609 High frequency differential amplification circuit with reduced parasitic capacitance Dec. 16, 2003
6624502 Method and device for limiting the substrate potential in junction isolated integrated circuits Sep. 23, 2003
6570240 Semiconductor device having a lateral bipolar transistor and method of manufacturing same May. 27, 2003
6566733 Method and system for providing a power lateral PNP transistor using a buried power buss May. 20, 2003
6384433 Voltage variable resistor from HBT epitaxial layers May. 7, 2002
6365957 Lateral bipolar transistor Apr. 2, 2002
6323538 Bipolar transistor and method for fabricating the same Nov. 27, 2001
6303973 Power transistor having large electric current capacity and semiconductor integrated circuit device using the same Oct. 16, 2001
6245609 High voltage transistor using P+ buried layer Jun. 12, 2001
6236072 Method and system for emitter partitioning for SiGe RF power transistors May. 22, 2001
6225679 Method and apparatus for protecting a device against voltage surges May. 1, 2001
6060761 Lateral type transistor May. 9, 2000
6043555 Bipolar silicon-on-insulator transistor with increased breakdown voltage Mar. 28, 2000
5939759 Silicon-on-insulator device with floating collector Aug. 17, 1999
5932922 Uniform current density and high current gain bipolar transistor Aug. 3, 1999
5821148 Method of fabricating a segmented emitter low noise transistor Oct. 13, 1998
5783855 Lateral transistor Jul. 21, 1998
5747837 Semiconductor device having input protective function May. 5, 1998
5691557 Semiconductor circuit having input protective circuit Nov. 25, 1997

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