Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Physics
Class Information
Number: 257/E21.376
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) > Transistor (epo) > Silicon vertical transistor (epo) > Planar transistor (epo)
Description: This subclass is indented under subclass E21.375. This subclass is substantially the same in scope as ECLA classification H01L21/331F2.










Patents under this class:

Patent Number Title Of Patent Date Issued
8258626 Copper interconnection, method for forming copper interconnection structure, and semiconductor device Sep. 4, 2012
7553757 Semiconductor device and method of manufacturing the same Jun. 30, 2009
T104102 Polysilicon-base self-aligned bipolar transistor process and structure Apr. 3, 1984
4381953 Polysilicon-base self-aligned bipolar transistor process May. 3, 1983











 
 
  Recently Added Patents
Method for evaluating performance characteristics of dental curing lights
Data architecture and user interface for plasma processing related software applications
Imaging device
Techniques for forming a contact to a buried diffusion layer in a semiconductor memory device
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Pyridazine compounds for controlling invertebrate pests
Determining phase-specific parameters of a physiological variable
  Randomly Featured Patents
Powder charged rock cracker cartridge
Personal transportation device for supporting a user's foot having multiple transportation attachments
Cleaning shoe for a combine harvester
Zipper with pre-activated peel-seal
Pen and fan combination
Pumping method and unit for optical amplifiers
Removable closure device
Portion of a keyboard
Method of producing composite materials
Saw blade mounting apparatus