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Class Information
Number: 257/E27.053
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Device consisting of a plurality of semiconductor or other solid state components formed in or on a common substrate, e.g., integrated circuit device (epo) > Including semiconductor component with at least one potential barrier or surface barrier adapted for rectifying, oscillating, amplifying, or switching, or including integrated passive circuit elements (epo) > With semiconductor substrate only (epo) > Including only semiconductor components of a single kind, e.g., all bipolar transistors, all diodes, or all cmos (epo) > Bipolar component only (epo)
Description: This subclass is indented under subclass E27.046. This subclass is substantially the same in scope as ECLA classification H01L27/082.

Sub-classes under this class:

Class Number Class Name Patents
257/E27.054 Combination of lateral and vertical transistors only (epo) 107
257/E27.055 Vertical bipolar transistor only (epo) 63

Patents under this class:
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Patent Number Title Of Patent Date Issued
8569867 Semiconductor device Oct. 29, 2013
8531001 Complementary bipolar inverter Sep. 10, 2013
8455975 Parasitic PNP bipolar transistor in a silicon-germanium BiCMOS process Jun. 4, 2013
RE44140 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Apr. 9, 2013
8410572 Bipolar transistor with emitter and/or collector contact structure forming a Schottky contact and method of production Apr. 2, 2013
8390096 Adjustable holding voltage ESD protection device Mar. 5, 2013
8378456 Unified switch array for memory devices Feb. 19, 2013
8357985 Bipolar transistor with guard region Jan. 22, 2013
8350352 Bipolar transistor Jan. 8, 2013
8338863 Vertical heterojunction bipolar transistors with reduced base-collector junction capacitance Dec. 25, 2012
8232156 Vertical heterojunction bipolar transistors with reduced base-collector junction capacitance Jul. 31, 2012
8227836 Semiconductor device and radio communication device Jul. 24, 2012
8120136 Bipolar transistor Feb. 21, 2012
RE43042 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Dec. 27, 2011
7973386 ESD protection bipolar device with internal avalanche diode Jul. 5, 2011
7927955 Adjustable bipolar transistors formed using a CMOS process Apr. 19, 2011
7923810 Semiconductor devices having active elements with raised semiconductor patterns and related methods of fabricating the same Apr. 12, 2011
7910448 Method for fabricating a mono-crystalline emitter Mar. 22, 2011
7868414 Isolated bipolar transistor Jan. 11, 2011
7859030 Heterojunction bipolar transistor and fabrication method of the same Dec. 28, 2010
7855119 Method for forming polycrystalline thin film bipolar transistors Dec. 21, 2010
7838947 Read-only memory device coded with selectively insulated gate electrodes Nov. 23, 2010
7723823 Buried asymmetric junction ESD protection device May. 25, 2010
7723824 Methodology for recovery of hot carrier induced degradation in bipolar devices May. 25, 2010
7675141 Semiconductor device and method of manufacturing the same Mar. 9, 2010
7629628 Bipolar transistor including a base layer containing carbon atoms and having three distinct layers being doped with a trivalent substance Dec. 8, 2009
7622756 Semiconductor device and radio communication device Nov. 24, 2009
7622357 Semiconductor device structures with backside contacts for improved heat dissipation and reduced parasitic resistance Nov. 24, 2009
7612430 Silicon bipolar transistor, circuit arrangement and method for producing a silicon bipolar transistor Nov. 3, 2009
7605445 Sealed nitride layer for integrated circuits Oct. 20, 2009
7605446 Bipolar high voltage/power semiconductor device having first and second insulated gated and method of operation Oct. 20, 2009
7582536 Electronic device with reduced interface charge between epitaxially grown layers and a method for making the same Sep. 1, 2009
7531851 Electronic device with reduced interface charge between epitaxially grown layers and a method for making the same May. 12, 2009
7482642 Bipolar transistors having controllable temperature coefficient of current gain Jan. 27, 2009
7473983 Bipolar method and structure having improved BVCEO/RCS trade-off made with depletable collector columns Jan. 6, 2009
7442595 Bipolar transistor with collector having an epitaxial Si:C region Oct. 28, 2008
7371650 Method for producing a transistor structure May. 13, 2008
RE40222 Electronic semiconductor power device with integrated diode Apr. 8, 2008
7342294 SOI bipolar transistors with reduced self heating Mar. 11, 2008
7329940 Semiconductor structure and method of manufacture Feb. 12, 2008
7268412 Double polysilicon bipolar transistor Sep. 11, 2007
7265434 Modular bipolar-CMOS-DMOS analog integrated circuit and power transistor technology Sep. 4, 2007
7164186 Structure of semiconductor device with sinker contact region Jan. 16, 2007
7075156 Collector structure for electrostatic discharge protection circuits Jul. 11, 2006
6762094 Nanometer-scale semiconductor devices and method of making Jul. 13, 2004
6664574 Heterojunction semiconductor device and method of manufacturing Dec. 16, 2003
6657279 PNP lateral bipolar electronic device and corresponding manufacturing process Dec. 2, 2003
6638807 Technique for gated lateral bipolar transistors Oct. 28, 2003
6627925 Transistor having a novel layout and an emitter having more than one feed point Sep. 30, 2003
6605870 Pressure-contact type semiconductor device Aug. 12, 2003

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