Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Physics
Class Information
Number: 257/E21.392
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Device having semiconductor body comprising group iv elements or group iii-v compounds with or without impurities, e.g., doping materials (epo) > Multi-step process for manufacture of device of bipolar type, e.g., diodes, transistors, thyristors, resistors, capacitors) (epo) > Device comprising three or more electrodes (epo) > Thyristor (epo) > Bi-directional thyristor (epo)
Description: This subclass is indented under subclass E21.388. This subclass is substantially the same in scope as ECLA classification H01L21/332P.










Patents under this class:

Patent Number Title Of Patent Date Issued
8680621 Integrated circuit, electronic device and ESD protection therefor Mar. 25, 2014
8664690 Bi-directional triode thyristor for high voltage electrostatic discharge protection Mar. 4, 2014
8242534 Semiconductor device and manufacturing method thereof Aug. 14, 2012
7718473 HF control bidirectional switch May. 18, 2010
7374974 Thyristor-based device with trench dielectric material May. 20, 2008
6828176 Thyristor having a first emitter with relatively lightly doped portion to the base Dec. 7, 2004
6777271 Thyristor-based device including trench isolation Aug. 17, 2004
4066484 Method of manufacture of a gold diffused thyristor Jan. 3, 1978











 
 
  Recently Added Patents
System and method for improving text input in a shorthand-on-keyboard interface
Representations of compressed video
Stroboscopic image modulation to reduce the visual blur of an object being viewed by an observer experiencing vibration
Liquid formulations of carboxamide arthropodicides
Systems and methods for computer-aided fold detection
Apparatus and method for storing event information for an HVAC system
(4948
  Randomly Featured Patents
Cathode structure for an electron tube and method of constructing it
Determining link capacity utilization for HDLC encoded links
Wideband multi-channel receiver with fixed-frequency notch filter for interference rejection
Orbiting nip sheet output with faceup or facedown stacking and integral gate
Suppression of low-frequency noise from phase detector in phase control loop
Sonar system
Set of speakers
Mower
Film-forming copolymers and their use in water vapor permeable coatings
Apparatus and method of dispensing small-scale powders