Resources Contact Us Home
Browse by Category: Main > Physics
Class Information
Number: 257/E21.076
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 selenium (se) or tellurium (te) (epo) > Treatment of complete device, e.g., by electroforming to form barrier (epo)
Description: This subclass is indented under subclass E21.068. This subclass is substantially the same in scope as ECLA classification H01L21/14.

Sub-classes under this class:

Class Number Class Name Patents
257/E21.077 Heat treating (epo) 114

Patents under this class:

Patent Number Title Of Patent Date Issued
7964938 Semiconductor packages having electromagnetic interference-shielding function, manufacturing method thereof and jig Jun. 21, 2011
7605082 Capping before barrier-removal IC fabrication method Oct. 20, 2009
7157371 Barrier layer and a method for suppressing diffusion processes during the production of semiconductor devices Jan. 2, 2007
3940645 Small-sized synchronous motor Feb. 24, 1976

  Recently Added Patents
Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefrom
Asymmetric switching rectifier
Nanoparticles in a flash memory using chaperonin proteins
Application authentication system and method
Process for preparing red cocoa ingredients, red chocolate, and food products
Systems, methods and computer program products supporting provision of web services using IMS
Rapid glycopeptide optimization via neoglycosylation
  Randomly Featured Patents
Method and process for manufacturing a terminal block
Intraoral jig for optical measurement
Proximity based method and apparatus for reducing electrical energy consumed by a personal computer with a sleep mode
Electrical power control assembly
Calender assembly
Receiver, wireless communication system, and receiving method
Apparatus for improving the image and sound processing capabilities of a camera
Bearing assembly
Electrical connector having locking mechanism
Swivel clip and case