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Class Information
Number: 257/E29.174
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Semiconductors devices adapted for rectifying, amplifying, oscillating, or switching, capacitors, or resistors with at least one potential-jump barrier or surface barrier (epo) > Types of semiconductor device (epo) > Controllable by only signal applied to control electrode (e.g., base of bipolar transistor, gate of field-effect transistor) (epo) > Bipolar device (epo) > Transistor-type device (i.e., able to continuously respond to applied control signal) > Bipolar junction transistor
Description: This subclass is indented under subclass E29.173. This subclass is substantially the same in scope as ECLA classification H01L29/73.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.18 Avalanche transistors (epo) 11
257/E29.182 Bipolar thin-film transistors (epo) 157
257/E29.176 Device being resistive element (e.g., ballasting resistor) (epo) 83
257/E29.188 Hetero-junction transistor (epo) 74
257/E29.187 Lateral transistor (epo) 269
257/E29.177 Point contact transistors (epo) 4
257/E29.178 Schottky transistors (epo) 6
257/E29.175 Structurally associated with other devices (epo) 75
257/E29.181 Transistors with hook collector (i.e., collector having two layers of opposite conductivity type (e.g., scr)) (epo) 40
257/E29.179 Tunnel transistors (epo) 26
257/E29.183 Vertical transistor (epo) 253

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8664692 Semiconductor device Mar. 4, 2014
8648419 ESD protection device and method Feb. 11, 2014
8624224 Nanotube array bipolar transistors Jan. 7, 2014
8598625 ESD protection device with tunable design windows Dec. 3, 2013
RE44547 Semiconductor device having deep trench charge compensation regions and method Oct. 22, 2013
8536679 High holding voltage BJT clamp with embedded reverse path protection in BCD process Sep. 17, 2013
8525300 Tunable ESD protection device Sep. 3, 2013
8525293 Bipolar transistor with raised extrinsic self-aligned base using selective epitaxial growth for BiCMOS integration Sep. 3, 2013
8492834 Electrostatic discharge protection device and applications thereof Jul. 23, 2013
8482102 Semiconductor device Jul. 9, 2013
8476712 Surge-current-resistant semiconductor diode with soft recovery behavior and methods for producing a semiconductor diode Jul. 2, 2013
8405186 Transistor structure with a sidewall-defined intrinsic base to extrinsic base link-up region and method of forming the structure Mar. 26, 2013
8378390 Silicon carbide bipolar junction transistor (BJT) having a surface electrode disposed on top of a dielectric layer formed at a region between emitter contact and base contact Feb. 19, 2013
8373236 Semiconductor device and method of manufacturing such a device Feb. 12, 2013
8319315 Bipolar junction transistor devices Nov. 27, 2012
8310027 Electronic device and manufacturing method thereof Nov. 13, 2012
8294243 Lateral bipolar transistor with compensated well regions Oct. 23, 2012
8283736 Hydrogen ion sensing device using of arrayed gated lateral BJT Oct. 9, 2012
8269313 Bipolar transistor including conductive first and second protection layers Sep. 18, 2012
8264038 Buried floating layer structure for improved breakdown Sep. 11, 2012
8258602 Bipolar junction transistors having a fin Sep. 4, 2012
8217494 Electrostatic discharge protection device Jul. 10, 2012
8212282 Semiconductor device used in step-up DC-DC converter, and step-up DC-DC converter Jul. 3, 2012
8148774 Method of fabricating semiconductor device with a high breakdown voltage between neighboring wells Apr. 3, 2012
8106480 Bipolar device having improved capacitance Jan. 31, 2012
8067290 Bipolar transistor with base-collector-isolation without dielectric Nov. 29, 2011
8049282 Bipolar device having buried contacts Nov. 1, 2011
8044466 ESD protection device in high voltage and manufacturing method for the same Oct. 25, 2011
8030635 Polysilicon plug bipolar transistor for phase change memory Oct. 4, 2011
8026575 Semiconductor device, electronic device, and manufacturing method of the same Sep. 27, 2011
8004008 Semiconductor device Aug. 23, 2011
7994611 Bipolar transistor fabricated in a biCMOS process Aug. 9, 2011
7968972 High-frequency bipolar transistor and method for the production thereof Jun. 28, 2011
7968970 Semiconductor device, method for manufacturing semiconductor device, and power amplifier element Jun. 28, 2011
7968908 Bidirectional electrostatic discharge protection structure for high voltage applications Jun. 28, 2011
7939854 Semiconductor device with a bipolar transistor and method of manufacturing such a device May. 10, 2011
7932155 Structure and method for performance improvement in vertical bipolar transistors Apr. 26, 2011
7915709 Semiconductor device and method of manufacturing the same Mar. 29, 2011
7910449 Semiconductor device and method of manufacturing the same Mar. 22, 2011
7902601 Semiconductor device having deep trench charge compensation regions and method Mar. 8, 2011
7898061 Structure for performance improvement in vertical bipolar transistors Mar. 1, 2011
7880271 Semiconductor device with emitter contact holes in a first layer not overlaid by emitter through holes in a second layer Feb. 1, 2011
7868414 Isolated bipolar transistor Jan. 11, 2011
7843039 Stress-modified device structures, methods of fabricating such stress-modified device structures, and design structures for an integrated circuit Nov. 30, 2010
7842967 Semiconductor device used in step-up DC-DC converter, and step-up DC-DC converter Nov. 30, 2010
7791171 Semiconductor device and method of manufacturing the same Sep. 7, 2010
7781350 Method and system for controllable deposition of nanoparticles on a substrate Aug. 24, 2010
7745882 High-gain bipolar junction transistor compatible with complementary metal-oxide-semiconductor (CMOS) process and method for fabricating the same Jun. 29, 2010
7741186 Creating increased mobility in a bipolar device Jun. 22, 2010
7723823 Buried asymmetric junction ESD protection device May. 25, 2010

1 2 3

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