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Class Information
Number: 257/110
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Regenerative type switching device (e.g., scr, comfet, thyristor) > Having only two terminals and no control electrode (gate), e.g., shockley diode > More than four semiconductor layers of alternating conductivity types (e.g., pnpnpn structure, 5 layer bidirectional diacs, etc.)
Description: Subject matter wherein the two terminal device with no control electrode has more than four layers of semiconductor material, each layer having an electrical conductivity type (e.g., p-type or n-type) which differs from that of each adjacent layer.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8664690 Bi-directional triode thyristor for high voltage electrostatic discharge protection Mar. 4, 2014
8654537 Printed circuit board with integral radio-frequency shields Feb. 18, 2014
8592881 Organic light emitting element and method of manufacturing the same Nov. 26, 2013
8587027 Field effect transistor, method of manufacturing the same, and semiconductor device Nov. 19, 2013
8564047 Semiconductor power devices integrated with a trenched clamp diode Oct. 22, 2013
8519431 Thyristors Aug. 27, 2013
8482029 Semiconductor device and integrated circuit including the semiconductor device Jul. 9, 2013
8476673 Diode Jul. 2, 2013
8395204 Power semiconductor device Mar. 12, 2013
8330184 Bidirectional voltage-regulator diode Dec. 11, 2012
8330198 Device for preventing current-leakage Dec. 11, 2012
8212320 High voltage tolerant ESD device Jul. 3, 2012
8049247 Asymmetric bidirectional silicon-controlled rectifier Nov. 1, 2011
8049250 Circuit and method for power clamp triggered dual SCR ESD protection Nov. 1, 2011
8035115 Semiconductor apparatus, print head, and image forming apparatus Oct. 11, 2011
7936020 Dual-directional electrostatic discharge protection device May. 3, 2011
7859010 Bi-directional semiconductor ESD protection device Dec. 28, 2010
7804150 Lateral trench gate FET with direct source-drain current path Sep. 28, 2010
7786504 Bidirectional PNPN silicon-controlled rectifier Aug. 31, 2010
7700970 Integrated power device having a start-up structure Apr. 20, 2010
7659140 Integrated circuit system with a debris trapping system Feb. 9, 2010
7554155 Power semiconductor device and method of manufacturing the same Jun. 30, 2009
7511316 Semiconductor device resistive to high voltage and capable of controlling leakage current Mar. 31, 2009
7452787 Fabrication method of semiconductor integrated circuit device Nov. 18, 2008
7427787 Guardringed SCR ESD protection Sep. 23, 2008
7332749 Junction-gate type static induction thyristor and high-voltage pulse generator using such junction-gate type static induction thyristor Feb. 19, 2008
7327541 Operation of dual-directional electrostatic discharge protection device Feb. 5, 2008
7319238 Semiconductor device and its manufacturing method Jan. 15, 2008
7317213 Semiconductor device having super junction structure and method for manufacturing the same Jan. 8, 2008
7268079 Method for fabricating a semiconductor having a field zone Sep. 11, 2007
7266006 Multiple-layer serial diode cell and nonvolatile memory device using the same Sep. 4, 2007
7250630 Electronic devices formed of high-purity molybdenum oxide Jul. 31, 2007
7244979 Semiconductor memory device and method for manufacturing the same Jul. 17, 2007
7224002 Silicon on insulator read-write non-volatile memory comprising lateral thyristor and trapping layer May. 29, 2007
7145185 Voltage-controlled bidirectional switch Dec. 5, 2006
7126166 High voltage lateral FET structure with improved on resistance performance Oct. 24, 2006
7064500 Semi-conductor interconnect using free space electron switch Jun. 20, 2006
7053423 Thyristor having a first emitter with relatively lightly doped portion to the base May. 30, 2006
7038234 Thermoelectric module with Si/SiGe and B4C/B9C super-lattice legs May. 2, 2006
7002218 Low capacitance ESD-protection structure under a bond pad Feb. 21, 2006
6965130 Alternating implant ring terminations Nov. 15, 2005
6963087 Pulsed bistable bidirectional electronic switch Nov. 8, 2005
6933588 High performance SCR-like BJT ESD protection structure Aug. 23, 2005
6888177 Increased base-emitter capacitance May. 3, 2005
6870202 Surge protection semiconductor device Mar. 22, 2005
6825504 Semiconductor integrated circuit device and method of manufacturing the same Nov. 30, 2004
6821824 Semiconductor device and method of manufacturing the same Nov. 23, 2004
6800877 Semi-conductor interconnect using free space electron switch Oct. 5, 2004
6724075 Semiconductor chip package and manufacturing method thereof Apr. 20, 2004
6717219 High holding voltage ESD protection structure for BiCMOS technology Apr. 6, 2004

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