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Class Information
Number: 257/E29.036
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) > Electrical characteristics due to properties of entire semiconductor body rather than just surface region (epo) > Characterized by specified shape or size of pn junction or by specified impurity concentration gradient within the device (epo) > With semiconductor regions connected to electrode carrying current to be rectified, amplified or switched and such electrode being part of semiconductor device which comprises three or more electrodes (epo) > Anode or cathode regions of thyristors or gated bipolar-mode devices (epo)
Description: This subclass is indented under subclass E29.029. This subclass is substantially the same in scope as ECLA classification H01L29/08D.










Sub-classes under this class:

Class Number Class Name Patents
257/E29.037 Anode regions of thyristors or gated bipolar-mode devices (epo) 176
257/E29.038 Cathode regions of thyristors (epo) 72


Patents under this class:

Patent Number Title Of Patent Date Issued
8664690 Bi-directional triode thyristor for high voltage electrostatic discharge protection Mar. 4, 2014
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
8093622 Semiconductor device and its driving method Jan. 10, 2012
8080830 Semiconductor device and method of driving the same Dec. 20, 2011
7910949 Power semiconductor device Mar. 22, 2011
7824967 Monolithically integrated light-activated thyristor and method Nov. 2, 2010
7705368 Insulated gate type thyristor Apr. 27, 2010
7687826 Thyristor with recovery protection Mar. 30, 2010
7633095 Integration of high-voltage devices and other devices Dec. 15, 2009
7339203 Thyristor and method of manufacture Mar. 4, 2008
7276778 Semiconductor system functioning as thyristor in on-state, and as bipolar transistor in transient state or with overcurrent Oct. 2, 2007
7262442 Triac operating in quadrants Q1 and Q4 Aug. 28, 2007
7262443 Silicide uniformity for lateral bipolar transistors Aug. 28, 2007
7242036 Semiconductor element Jul. 10, 2007
6111278 Power semiconductor devices having discontinuous emitter regions therein for inhibiting parasitic thyristor latch-up Aug. 29, 2000
5894141 Bipolar semiconductor power controlling devices with heterojunction Apr. 13, 1999
5731637 Semiconductor device Mar. 24, 1998











 
 
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