Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Trench gate type VDMOSFET device with thicker gate insulation layer portion for reducing gate to source capacitance










Image Number 16 for United States Patent #8129779.

A semiconductor device according to the present invention includes a semiconductor layer. A first conductivity type region is formed on a base layer portion of the semiconductor layer. A body region of a second conductivity type is formed on the semiconductor layer to be in contact with the first conductivity type region. A trench in which a gate electrode is embedded through a gate insulating film is formed on the semiconductor layer. The trench penetrates through the body region, so that a deepest portion thereof reaches the first conductivity type region. A source region of the first conductivity type is formed on a surface layer portion of the semiconductor layer around the trench. The gate insulating film includes a thick-film portion having a relatively large thickness on a bottom surface of the trench.








 
 
  Recently Added Patents
System and method for internet based procurement of goods and services
Methods and devices for creating, compressing and searching binary tree
Electrode structure and its manufacturing method, and semiconductor module
Method and apparatus for detecting and tracking vehicles
Systems, methods and apparatus for payment processing
Method and system for distributing load by redirecting traffic
Coated article and method for making the same
  Randomly Featured Patents
Difluoropyridine-based compound and organic electroluminescent device using the same
Food preparation table having a refrigerated ingredient zone
Process and apparatus for treating composite elements
Dashboard device retraction system
Radiator for a heat generating components in electronic equipment
Method and apparatus for evenly winding magnetic tape
Tri-heterocyclic compounds and a pharmaceutical comprising them as an active ingredient
Soap cake construction and manufacture
Method and system for locating signal jammers
Process for converting formate esters to carboxylic acids