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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) |
92 |
| 257/133 |
Combined with field effect transistor |
305 |
| 257/146 |
Combined with other solid-state active device in integrated structure |
225 |
| 257/108 |
Controlled by nonelectrical, nonoptical external signal (e.g., magnetic field, pressure, thermal) |
66 |
| 257/173 |
Device protection (e.g., from overvoltage) |
436 |
| 257/163 |
Emitter region feature |
95 |
| 257/132 |
Five or more layer unidirectional structure |
56 |
| 257/167 |
Having at least four external electrodes |
83 |
| 257/109 |
Having only two terminals and no control electrode (gate), e.g., shockley diode |
98 |
| 257/162 |
Lateral structure |
148 |
| 257/147 |
With extended latchup current level (e.g., gate turn off "gto" device) |
177 |
| 257/177 |
With housing or external electrode |
80 |
| 257/157 |
With integrated trigger signal amplification means (e.g., amplified gate, "pilot thyristor", etc.) |
51 |
| 257/113 |
With light activation |
105 |
| 257/175 |
With means to control triggering (e.g., gate electrode configuration, zener diode firing, dv/dt control, transient control by ferrite bead, etc.) |
127 |
| 257/168 |
With means to increase breakdown voltage |
72 |
| 257/172 |
With means to lower "on" voltage drop |
34 |
| 257/154 |
With resistive region connecting separate sections of device |
148 |
| 257/155 |
With switching speed enhancement means (e.g., schottky contact) |
142 |
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7443722 |
Semiconductor device and driving method therefor |
Oct. 28, 2008 |
| 7436003 |
Vertical thyristor for ESD protection and a method of fabricating a vertical thyristor for ESD protection |
Oct. 14, 2008 |
| 7436004 |
Semiconductor device |
Oct. 14, 2008 |
| 7427787 |
Guardringed SCR ESD protection |
Sep. 23, 2008 |
| 7423299 |
Semiconductor devices with a field shaping region |
Sep. 9, 2008 |
| 7405434 |
Quantum dot conjugates in a sub-micrometer fluidic channel |
Jul. 29, 2008 |
| 7391057 |
High voltage silicon carbide devices having bi-directional blocking capabilities |
Jun. 24, 2008 |
| 7385230 |
Modulation doped thyristor and complementary transistor combination for a monolithic optoelectronic integrated circuit |
Jun. 10, 2008 |
| 7365372 |
Semiconductor device and method for manufacturing semiconductor device |
Apr. 29, 2008 |
| 7352032 |
Output driver with split pins |
Apr. 1, 2008 |
| 7345326 |
Electric signal transmission line |
Mar. 18, 2008 |
| 7342281 |
Electrostatic discharge protection circuit using triple welled silicon controlled rectifier |
Mar. 11, 2008 |
| 7339203 |
Thyristor and method of manufacture |
Mar. 4, 2008 |
| 7332749 |
Junction-gate type static induction thyristor and high-voltage pulse generator using such junction-gate type static induction thyristor |
Feb. 19, 2008 |
| 7332748 |
Electro-static discharge protection device |
Feb. 19, 2008 |
| 7309896 |
Electrostatic discharge protection device |
Dec. 18, 2007 |
| 7294408 |
Material composite and production and use of the material composite |
Nov. 13, 2007 |
| 7291869 |
Electronic module with stacked semiconductors |
Nov. 6, 2007 |
| 7279367 |
Method of manufacturing a thyristor semiconductor device |
Oct. 9, 2007 |
| 7279726 |
ESD protection device |
Oct. 9, 2007 |
| 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 |
| 7265395 |
Semiconductor device |
Sep. 4, 2007 |
| 7262442 |
Triac operating in quadrants Q1 and Q4 |
Aug. 28, 2007 |
| 7259407 |
Isolated HF-control SCR switch |
Aug. 21, 2007 |
| 7247921 |
Semiconductor apparatus and method of manufacturing same, and method of detecting defects in semiconductor apparatus |
Jul. 24, 2007 |
| 7242036 |
Semiconductor element |
Jul. 10, 2007 |
| 7242085 |
Semiconductor device including a semiconductor chip mounted on a metal base |
Jul. 10, 2007 |
| 7230324 |
Strobe light control circuit and IGBT device |
Jun. 12, 2007 |
| 7205581 |
Thyristor structure and overvoltage protection configuration having the thyristor structure |
Apr. 17, 2007 |
| 7193251 |
ESD protection cluster and method of providing multi-port ESD protection |
Mar. 20, 2007 |
| 7173290 |
Thyristor switch with turn-off current shunt, and operating method |
Feb. 6, 2007 |
| 7173291 |
Vertical protecting element formed in semiconductor substrate and semiconductor device using the same |
Feb. 6, 2007 |
| 7170105 |
Type II interband heterostructure backward diodes |
Jan. 30, 2007 |
| 7157747 |
Bidirectional photothyristor chip, light-fired coupler and solid state relay |
Jan. 2, 2007 |
| 7157342 |
Thyristor-based semiconductor memory device and its method of manufacture |
Jan. 2, 2007 |
| 7145185 |
Voltage-controlled bidirectional switch |
Dec. 5, 2006 |
| 7126204 |
Integrated semiconductor circuit with an electrically programmable switching element |
Oct. 24, 2006 |
| 7126166 |
High voltage lateral FET structure with improved on resistance performance |
Oct. 24, 2006 |
| 7119379 |
Semiconductor device |
Oct. 10, 2006 |
| 7109531 |
High frequency switch, two-band type high frequency switch, three-band type high frequency switch, and mobile communication equipment |
Sep. 19, 2006 |
| 7084438 |
Metal insulator power semiconductor component (MIS) and a method for producing the same |
Aug. 1, 2006 |
| 7078739 |
Thyristor-based memory and its method of operation |
Jul. 18, 2006 |
| 7075168 |
Semiconductor device |
Jul. 11, 2006 |
| 7067850 |
Stacked switchable element and diode combination |
Jun. 27, 2006 |
| 7053423 |
Thyristor having a first emitter with relatively lightly doped portion to the base |
May. 30, 2006 |
| 7042027 |
Gated lateral thyristor-based random access memory cell (GLTRAM) |
May. 9, 2006 |
| 7034385 |
Topless semiconductor package |
Apr. 25, 2006 |
| 7026664 |
DC-DC converter implemented in a land grid array package |
Apr. 11, 2006 |
| 7019337 |
Power semiconductor switching devices, power converters, integrated circuit assemblies, integrated circuitry, power current switching methods, methods of forming a power semiconductor switchin |
Mar. 28, 2006 |
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