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
Simplified algorithm for abnormal situation prevention in load following applications including plugged line diagnostics in a dynamic process
Secure data exchange for processing requests
Global alignment for high-dynamic range image generation
Controller with screen
System and methods for facilitating and documenting user thinking and learning using enhanced interactive constructs
Combined imaging and radiation therapy
Method for the synthesis of an array of metal nanowire capable of supporting localized plasmon resonances and photonic device comprising said array
  Randomly Featured Patents
Device for performing an endodontic treatment
Tilt priority scheme for a control system
CRL last changed extension or attribute
Method for treating hypermenorrhea with uterine therapeutic system
Directional input device with a light directing shaft
Preparation of stable nanotube dispersions in liquids
Multi-dimensional screen
Method and system for testing and debugging distributed software systems by using network emulation
Camera having a data registration device
Surface acoustic wave filter device, duplexer including the same, and electronic apparatus including the same