Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E21.369
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)
Description: This subclass is indented under subclass E21.35. This subclass is substantially the same in scope as ECLA classification H01L21/33.

Sub-classes under this class:

Class Number Class Name Patents
257/E21.388 Thyristor (epo) 74
257/E21.37 Transistor (epo) 83

Patents under this class:

Patent Number Title Of Patent Date Issued
8410554 Method, structure and design structure for customizing history effects of SOI circuits Apr. 2, 2013
8174054 Field effect transistor with interdigitated fingers and method of manufacturing thereof May. 8, 2012
7422970 Method for modifying circuit within substrate Sep. 9, 2008
5465001 Electronic component capable of negative dynamic resistance Nov. 7, 1995

  Recently Added Patents
Fractal method for detecting and filling data gaps within LiDAR data
Fluorescent molecule and method for detecting target nucleic acid
Sending notification of event
Semiconductor apparatus
Mobile communication apparatus
High-efficiency preambles for communications systems over pseudo-stationary communication channels
Method of operating an electromechanical converter, a controller and a computer program product
  Randomly Featured Patents
Food container with flip-out condiment pocket
Printing medium, printing medium unit, printing system, consumption control server, consumption control system, and consumption control method
Circulating switch
Control device for a vehicle route guidance system
Method and apparatus for stripping media from a surface in an apparatus useful for printing
Apparatus and method for producing symmetric capture range in two-quadrant phase detector PLLs using nonsymmetric pulse waves
Managing traffic in communications system having dissimilar CDMA channels
Infrared spectrometer
System and method for an optimizable rack solution
Communication control system between parallel computers