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Class Information
Number: 257/E29.217
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) > Combined structurally with at least one other device (epo)
Description: This subclass is indented under subclass E29.211. This subclass is substantially the same in scope as ECLA classification H01L29/74B.










Sub-classes under this class:

Class Number Class Name Patents
257/E29.218 Combined with capacitor or resistor (epo) 39
257/E29.219 Combined with diode (epo) 28
257/E29.221 Combined with field-effect transistor (epo) 42


Patents under this class:

Patent Number Title Of Patent Date Issued
7843009 Electrostatic discharge protection device for an integrated circuit Nov. 30, 2010
7456440 Electrostatic protection device Nov. 25, 2008
7274047 Silicon controlled rectifier electrostatic discharge protection device for power supply lines with powerdown mode of operation Sep. 25, 2007
6927427 Bidirectional static switch responsive in quadrants Q4 and Q1 Aug. 9, 2005
6727526 Thyristor with recovery time voltage surge resistance Apr. 27, 2004
6724043 Bipolar MOSFET device Apr. 20, 2004
6552370 Network of triacs with gates referenced with respect to a common opposite face electrode Apr. 22, 2003
6479841 Power component state detector Nov. 12, 2002
6480056 Network of triacs with gates referenced with respect to a common opposite face electrode Nov. 12, 2002
6218709 Semiconductor device and semiconductor circuit using the same Apr. 17, 2001
6034381 Network of triacs with gates referenced with respect to a common opposite face electrode Mar. 7, 2000
5914502 Assembly of thyristors having a common cathode Jun. 22, 1999
5861639 Breakover-triggered dipole component having a controlled sensitivity Jan. 19, 1999
5699008 Thyristor controllable by logic signals Dec. 16, 1997
5644150 Insulated gate thyristor Jul. 1, 1997
5627090 Semiconductor element and process for production for the same May. 6, 1997
5468976 Semi conductor rectifying module Nov. 21, 1995
5463344 Fast turn on switch circuit with parallel MOS controlled thyristor and silicon controlled rectifier Oct. 31, 1995
5442219 Semiconductor device for controlling electric power Aug. 15, 1995
5304823 An equipment protection semiconductor integrated circuit Apr. 19, 1994
5204273 Method for the manufacturing of a thyristor with defined lateral resistor Apr. 20, 1993
5086242 Fast turn-off of thyristor structure Feb. 4, 1992
4888627 Monolithically integrated lateral insulated gate semiconductor device Dec. 19, 1989
4857983 Monolithically integrated semiconductor device having bidirectional conducting capability and method of fabrication Aug. 15, 1989
4827321 Metal oxide semiconductor gated turn off thyristor including a schottky contact May. 2, 1989
4803172 Method of manufacturing thyristor with integrated power supply for an associated circuit Feb. 7, 1989
4801985 Monolithically integrated semiconductor device and process for fabrication Jan. 31, 1989
4799095 Metal oxide semiconductor gated turn off thyristor Jan. 17, 1989
4743950 Thyristor with switchable emitter short circuit May. 10, 1988
4736232 Thyristor with integrated power supply for an associated circuit and method for manufacture thereof Apr. 5, 1988
4509068 Thyristor with controllable emitter short circuits and trigger amplification Apr. 2, 1985
4491742 Semiconductor switch device Jan. 1, 1985
4441115 Thyristor having a center pn junction formed by plastic deformation of the crystal lattice Apr. 3, 1984
4286280 Semiconductor integrated circuit device Aug. 25, 1981
4027322 Zero point switching thyristor having an isolated emitter region May. 31, 1977
3979766 Semiconductor device Sep. 7, 1976











 
 
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