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Class Information
Number: 257/107
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Regenerative type switching device (e.g., scr, comfet, thyristor)
Description: Subject matter wherein the active solid-state device acts as if it has two or more active emitter junctions each of which is associated with a separate, equivalent transistor having an individual gain and, when initiated by a base region current, the equivalent transistors mutually drive each other in a regenerative manner to lower the voltage drop between the emitters.

Sub-classes under this class:

Class Number Class Name Patents
257/119 Bidirectional rectifier with control electrode (gate) (e.g., triac) 126
257/133 Combined with field effect transistor 390
257/146 Combined with other solid-state active device in integrated structure 258
257/108 Controlled by nonelectrical, nonoptical external signal (e.g., magnetic field, pressure, thermal) 96
257/173 Device protection (e.g., from overvoltage) 682
257/163 Emitter region feature 105
257/132 Five or more layer unidirectional structure 62
257/167 Having at least four external electrodes 93
257/109 Having only two terminals and no control electrode (gate), e.g., shockley diode 147
257/162 Lateral structure 175
257/147 With extended latchup current level (e.g., gate turn off "gto" device) 201
257/177 With housing or external electrode 130
257/157 With integrated trigger signal amplification means (e.g., amplified gate, "pilot thyristor", etc.) 76
257/113 With light activation 128
257/175 With means to control triggering (e.g., gate electrode configuration, zener diode firing, dv/dt control, transient control by ferrite bead, etc.) 158
257/168 With means to increase breakdown voltage 97
257/172 With means to lower "on" voltage drop 39
257/154 With resistive region connecting separate sections of device 174
257/155 With switching speed enhancement means (e.g., schottky contact) 175

Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8704269 Die package Apr. 22, 2014
8685800 Single event latch-up prevention techniques for a semiconductor device Apr. 1, 2014
8674400 Stress enhanced junction engineering for latchup SCR Mar. 18, 2014
8664728 Power transistor with protected channel Mar. 4, 2014
8664690 Bi-directional triode thyristor for high voltage electrostatic discharge protection Mar. 4, 2014
8643085 High-voltage-resistant semiconductor component having vertically conductive semiconductor body areas and a trench structure Feb. 4, 2014
8610237 Semiconductor apparatus Dec. 17, 2013
8575695 Lateral super junction device with high substrate-drain breakdown and built-in avalanche clamp diode Nov. 5, 2013
8535992 Thyristor random access memory device and method Sep. 17, 2013
8530949 Semiconductor device with common contact coupling gate wiring integrated with gate electrode of antifuse to diffusion layer Sep. 10, 2013
8476672 Electrostatic discharge protection device and method for fabricating the same Jul. 2, 2013
8456155 Radio-frequency power amplifier Jun. 4, 2013
8441030 III-nitride multi-channel heterojunction interdigitated rectifier May. 14, 2013
8420454 Three-terminal power device with high switching speed and manufacturing process Apr. 16, 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
8390068 Electrostatic discharge protection device and method of fabricating same Mar. 5, 2013
8377754 Stress enhanced junction engineering for latchup SCR Feb. 19, 2013
8378382 High aspect-ratio PN-junction and method for manufacturing the same Feb. 19, 2013
8324656 Reduction of electrostatic coupling for a thyristor-based memory cell Dec. 4, 2012
8288795 Thyristor based memory cells, devices and systems including the same and methods for forming the same Oct. 16, 2012
8278715 Electrostatic discharge protection device Oct. 2, 2012
8247839 ESD protection device with increased holding voltage during normal operation Aug. 21, 2012
8242534 Semiconductor device and manufacturing method thereof Aug. 14, 2012
8236623 Memory cell that employs a selectively fabricated carbon nano-tube reversible resistance-switching element and methods of forming the same Aug. 7, 2012
8227831 Semiconductor device having a junction FET and a MISFET for control Jul. 24, 2012
8203171 Defective graphene-based memristor Jun. 19, 2012
8188601 Semiconductor subassemblies with interconnects and methods for manufacturing the same May. 29, 2012
8174046 Reducing effects of parasitic transistors in thyristor-based memory using local thinning or implanting May. 8, 2012
8164110 Integrated lateral high-voltage diode and thyristor Apr. 24, 2012
8159023 Semiconductor device Apr. 17, 2012
8145020 Semiconductor device Mar. 27, 2012
8143700 Electrostatic discharge protection circuit Mar. 27, 2012
8138521 Thyristor semiconductor device and switching method thereof Mar. 20, 2012
8134177 Switching element, semiconductor device and method of manufacturing the same Mar. 13, 2012
8129292 Integrated circuit arrangement with shockley diode or thyristor and method for production and use of a thyristor Mar. 6, 2012
8120023 Low crosstalk, front-side illuminated, back-side contact photodiode array Feb. 21, 2012
8115211 Silicon carbide semiconductor device and manufacturing method thereof Feb. 14, 2012
8093622 Semiconductor device and its driving method Jan. 10, 2012
8089095 Two terminal multi-channel ESD device and method therefor Jan. 3, 2012
7989841 Fast injection optical switch Aug. 2, 2011
7985983 Semiconductor ESD device and method of making same Jul. 26, 2011
7968381 Fin thyristor-based semiconductor device Jun. 28, 2011
7940558 Integrated circuit comprising a thyristor and method of controlling a memory cell comprising a thyristor May. 10, 2011
7939850 Semiconductor device and method for producing a semiconductor device May. 10, 2011
7910949 Power semiconductor device Mar. 22, 2011
7897440 Vertical thyristor-based memory with trench isolation and method of fabrication thereof Mar. 1, 2011
7893456 Thyristor-based memory and its method of operation Feb. 22, 2011
7893455 Semiconductor light emitting device with stress absorber, LED printhead, and image forming apparatus Feb. 22, 2011
7888704 Semiconductor device for electrostatic discharge protection Feb. 15, 2011
7888701 Integrated circuit arrangement with Shockley diode or thyristor and method for production and use of a thyristor Feb. 15, 2011

1 2 3 4 5 6

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