Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Semiconductor device










Image Number 13 for United States Patent #6849900.

A semiconductor device includes: a semiconductor substrate of a first conductivity type; a semiconductor layer of a first conductivity type formed on a first main surface of the semiconductor substrate, the semiconductor layer including a first region for a cell portion and a second region for a terminating portion, the second region being positioned in an outer periphery of the first region, the terminating portion maintaining breakdown voltage by extending a depletion layer to relieve an electric field; junction pairs of semiconductor layers periodically arranged so as to form a line from the first region to the second region in a first direction parallel to the first main surface in the semiconductor layer and having mutually opposite conductivity types of impurities, each of the junction pair being composed of a first impurity diffusion layer of a second conductivity type formed from a surface of the semiconductor layer toward the semiconductor substrate and a second impurity diffusion layer of a first conductivity type formed from the surface of the semiconductor layer toward the semiconductor substrate and adjacently to the first impurity diffusion layer; a base layer of a second conductivity type selectively formed on each surface layer of the junction pairs which are formed in the first region, so as to connect with the first impurity diffusion layer and the second impurity diffusion layer in the same manner; a source layer of a first conductivity type selectively formed on each surface layer of the base layers of the second conductive type; a control electrode formed above each surface of the base layers and above each surface of the source layers via an insulating film; a first main electrode formed so as to cover the control electrode and to contact the source layers and the base layers in the same manner; and a second main electrode formed on a second main surface opposite to the first main surface of the semiconductor substrate.








 
 
  Recently Added Patents
Variety corn line LIC7382
Protocol delay measuring device and protocol delay measuring method
Image generation device with optimized dose control
Method and apparatus for controlled reoxygenation
Context-based adaptive binary arithmetic coding engine
Method and apparatus for encoding and decoding video based on first sub-pixel unit and second sub-pixel unit
Dehumidifier
  Randomly Featured Patents
Vibration damping device
Circuit breaking device
Emergency reporting system and terminal apparatus therein
Method and apparatus for manufacturing TEDA-impregnated active carbon in fluidized bed type absorbing tower by generating TEDA vapor by means of hot air
Flow check valve assembly and method
Peptides for the treatment of Alzheimer's disease and other beta-amyloid protein fibrillogenesis disorders
Method for displaying toilet training materials and display kiosk using same
Apparatus and method for estimating bounce back angle of a stopped engine
Vertical actuator having a gravity compensation device
Substituted N-aroyl N'-phenyl urea compounds