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
Rim for a TV receiver
Electronic multiparty accounts receivable and accounts payable system
Apparatus, system, and method for non-interruptively updating firmware on a redundant hardware controller
Vehicle display system or projection display for a motor vehicle, and calibration method
Range extension techniques for a wireless local area network
Dehydratable hygiene articles
Combined high and low frequency stimulation therapy
  Randomly Featured Patents
De-coupling capacitors produced by utilizing dummy conductive structures integrated circuits
Method for steam injection in steeply dipping formations
Tub seat massager
Method and apparatus for sealing and re-sealing an annular vessel opening
Phenolic modified olefin polymers
Dot drive circuit of wire dot type printer
Methods for optimizing the performance, cost and constellation design of satellites for full and partial earth coverage
Preventing mold and casting cracking in high rate directional solidification processes
Magnetic switch assembly for detecting unauthorized opening of doors or windows
Burner control system