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Class Information
Number: 257/E29.211
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)
Description: This subclass is indented under subclass E29.171. This subclass is substantially the same in scope as ECLA classification H01L29/74.

Sub-classes under this class:

Class Number Class Name Patents
257/E29.224 Asymmetrical thyristor (epo) 16
257/E29.215 Bidirectional device (e.g., triac) (epo) 119
257/E29.217 Combined structurally with at least one other device (epo) 36
257/E29.212 Gate-turn-off device (epo) 162
257/E29.223 Having amplifying gate structure (e.g., darlington configuration) (epo) 68
257/E29.222 Having built-in localized breakdown/breakover region (epo) 32
257/E29.225 Lateral thyristor (epo) 127
257/E29.216 With turn on by field effect (epo) 167

Patents under this class:
1 2 3 4

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
8674400 Stress enhanced junction engineering for latchup SCR Mar. 18, 2014
8669554 Fast recovery reduced p-n junction rectifier Mar. 11, 2014
8598621 Memory cells, memory arrays, methods of forming memory cells, and methods of forming a shared doped semiconductor region of a vertically oriented thyristor and a vertically oriented access tra Dec. 3, 2013
8542337 Pixel structure of active matrix organic light emitting display and manufacturing thereof Sep. 24, 2013
8384126 Low voltage PNPN protection device Feb. 26, 2013
8354690 Solid-state pinch off thyristor circuits Jan. 15, 2013
8159026 Lateral high-voltage semiconductor devices with majorities of both types for conduction Apr. 17, 2012
8093623 Semiconductor integrated circuit Jan. 10, 2012
8049248 Semiconductor device including thyristor and method of manufacturing the same Nov. 1, 2011
8035126 One-transistor static random access memory with integrated vertical PNPN device Oct. 11, 2011
7985983 Semiconductor ESD device and method of making same Jul. 26, 2011
7939887 Active semiconductor component with a reduced surface area May. 10, 2011
7935619 Polarity dependent switch for resistive sense memory May. 3, 2011
7897440 Vertical thyristor-based memory with trench isolation and method of fabrication thereof Mar. 1, 2011
7880195 Electrostatic discharge protection device and related circuit Feb. 1, 2011
7855399 Protection device of programmable semiconductor surge suppressor having deep-well structure Dec. 21, 2010
7821029 Electrostatic protection element Oct. 26, 2010
7816706 Power semiconductor device Oct. 19, 2010
7800135 Power semiconductor device and method of manufacturing a power semiconductor device Sep. 21, 2010
7781797 One-transistor static random access memory with integrated vertical PNPN device Aug. 24, 2010
7732834 Semiconductor ESD device and method of making same Jun. 8, 2010
7705368 Insulated gate type thyristor Apr. 27, 2010
7671415 Electro-static discharge protection circuit and semiconductor device having the same Mar. 2, 2010
7649212 Active semiconductor component with a reduced surface area Jan. 19, 2010
7633095 Integration of high-voltage devices and other devices Dec. 15, 2009
7612387 Thyristor optimized for a sinusoidal HF control Nov. 3, 2009
7589359 Silicon controlled rectifier Sep. 15, 2009
7564072 Semiconductor device having junction termination extension Jul. 21, 2009
7521730 Thyristor arrangement with turnoff protection Apr. 21, 2009
7436003 Vertical thyristor for ESD protection and a method of fabricating a vertical thyristor for ESD protection Oct. 14, 2008
7423298 Bidirectional photothyristor chip, optical lighting coupler, and solid state relay Sep. 9, 2008
7365372 Semiconductor device and method for manufacturing semiconductor device Apr. 29, 2008
7301178 Pressed-contact type semiconductor device Nov. 27, 2007
7183591 Trench isolation for thyristor-based device Feb. 27, 2007
7145186 Memory cell with trenched gated thyristor Dec. 5, 2006
7084438 Metal insulator power semiconductor component (MIS) and a method for producing the same Aug. 1, 2006
7053404 Active semiconductor component with an optimized surface area May. 30, 2006
7015077 Varied trench depth for thyristor isolation Mar. 21, 2006
6979602 Method for making a recessed thyristor control port Dec. 27, 2005
6967358 Thyristor-type memory device Nov. 22, 2005
6943382 Pressed-contact type semiconductor device Sep. 13, 2005
6924177 Method for producing a thyristor Aug. 2, 2005
6872602 Carrier coupler for thyristor-based semiconductor device Mar. 29, 2005
6870202 Surge protection semiconductor device Mar. 22, 2005
6864515 Pressure contact type semiconductor device having dummy segment Mar. 8, 2005
6841806 Heterojunction thyristor-based amplifier Jan. 11, 2005
6815734 Varied trench depth for thyristor isolation Nov. 9, 2004
6803259 Silicon controlled rectifier for sige process, manufacturing method thereof and integrated circuit including the same Oct. 12, 2004

1 2 3 4

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