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Class Information
Number: 257/E29.225
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) > Thyristor-type device (e.g., having four-zone regenerative action) (epo) > Lateral thyristor (epo)
Description: This subclass is indented under subclass E29.211. This subclass is substantially the same in scope as ECLA classification H01L29/74F.

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8703547 Thyristor comprising a special doped region characterized by an LDD region and a halo implant Apr. 22, 2014
8680621 Integrated circuit, electronic device and ESD protection therefor Mar. 25, 2014
8586423 Silicon controlled rectifier with stress-enhanced adjustable trigger voltage Nov. 19, 2013
8390124 Semiconductor device and method of manufacturing semiconductor device including wiring via and switch via for connecting first and second wirings Mar. 5, 2013
8354722 SCR/MOS clamp for ESD protection of integrated circuits Jan. 15, 2013
8283731 One-time programmable memory Oct. 9, 2012
8174077 High-voltage variable breakdown voltage (BV) diode for electrostatic discharge (ESD) applications May. 8, 2012
8030683 Protection circuit Oct. 4, 2011
7968381 Fin thyristor-based semiconductor device Jun. 28, 2011
7843009 Electrostatic discharge protection device for an integrated circuit Nov. 30, 2010
7825473 Initial-on SCR device for on-chip ESD protection Nov. 2, 2010
7709329 High-voltage variable breakdown voltage (BV) diode for electrostatic discharge (ESD) applications May. 4, 2010
7667241 Electrostatic discharge protection device Feb. 23, 2010
7633095 Integration of high-voltage devices and other devices Dec. 15, 2009
7582937 ESD protection circuit Sep. 1, 2009
7462885 ESD structure for high voltage ESD protection Dec. 9, 2008
7342281 Electrostatic discharge protection circuit using triple welled silicon controlled rectifier Mar. 11, 2008
7205581 Thyristor structure and overvoltage protection configuration having the thyristor structure Apr. 17, 2007
7196361 Cascoded bi-directional high voltage ESD protection structure Mar. 27, 2007
7071528 Double-triggered silicon controlling rectifier and electrostatic discharge protection circuit thereof Jul. 4, 2006
7042027 Gated lateral thyristor-based random access memory cell (GLTRAM) May. 9, 2006
6989572 Symmetrical high frequency SCR structure Jan. 24, 2006
6965129 Thyristor-based device having dual control ports Nov. 15, 2005
6946690 High holding voltage ESD protection structure and method Sep. 20, 2005
6936896 Semiconductor apparatus Aug. 30, 2005
6933541 Emitter turn-off thyristors (ETO) Aug. 23, 2005
6921931 Electrostatic discharge protection element Jul. 26, 2005
6919588 High-voltage silicon controlled rectifier structure with improved punch through resistance Jul. 19, 2005
6919604 Silicon controlled rectifier structure with guard ring controlled circuit Jul. 19, 2005
6911680 Self-aligned thin capacitively-coupled thyristor structure Jun. 28, 2005
6909149 Low voltage silicon controlled rectifier (SCR) for electrostatic discharge (ESD) protection of silicon-on-insulator technologies Jun. 21, 2005
6894351 Semiconductor device for electrostatic protection May. 17, 2005
6891206 Lateral thyristor structure for protection against electrostatic discharge May. 10, 2005
6891205 Stability in thyristor-based memory device May. 10, 2005
6888176 Thyrister semiconductor device May. 3, 2005
6850397 Silicon controlled rectifier electrostatic discharge protection device for power supply lines with powerdown mode of operation Feb. 1, 2005
6828202 Semiconductor region self-aligned with ion implant shadowing Dec. 7, 2004
6828176 Thyristor having a first emitter with relatively lightly doped portion to the base Dec. 7, 2004
6815732 High-voltage silicon controlled rectifier structure Nov. 9, 2004
6806160 Method for forming a lateral SCR device for on-chip ESD protection in shallow-trench-isolation CMOS process Oct. 19, 2004
6791146 Silicon controlled rectifier structure with guard ring controlled circuit Sep. 14, 2004
6784029 Bi-directional ESD protection structure for BiCMOS technology Aug. 31, 2004
6770918 Electrostatic discharge protection silicon controlled rectifier (ESD-SCR) for silicon germanium technologies Aug. 3, 2004
6767770 Method of forming self-aligned thin capacitively-coupled thyristor structure Jul. 27, 2004
6765771 SCR devices with deep-N-well structure for on-chip ESD protection circuits Jul. 20, 2004
6762439 Diode for power protection Jul. 13, 2004
6737682 High voltage tolerant and low voltage triggering floating-well silicon controlled rectifier on silicon-on-insulator for input or output May. 18, 2004
6703646 Thyristor with lightly-doped emitter Mar. 9, 2004
6690039 Thyristor-based device that inhibits undesirable conductive channel formation Feb. 10, 2004
6674622 Dynamic floating SCR (semiconductor-controlled-rectifier) ESD protection Jan. 6, 2004

1 2 3

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