Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Power semiconductor device and method of manufacturing the same










Image Number 6 for United States Patent #7554155.

A power semiconductor device has a first main electrode formed along a surface of a substrate, a first semiconductor layer of first conductive type electrically connected to the first main electrode, a cyclic structure section which is formed on the first semiconductor layer and has second semiconductor layers of first conductive type and third semiconductor layers of second conductive type alternately and cyclically formed along the surface of the substrate, a fourth semiconductor layer of second conductive type selectively formed on a part of the second and third semiconductor layers, a fifth semiconductor layer of first conductive type selectively formed on the fourth semiconductor layer, a second main electrode contacted the fourth and fifth semiconductor layers, a control electrode disposed adjacent via a first insulating film on the second, fourth and fifth semiconductor layers, and a depletion layer blocking section which is formed outside of the cyclic structure section and prevents a depletion layer from spreading outside, wherein the depletion layer blocking section includes a conductive layer formed via a second insulating film in a first trench formed outside of the outermost third semiconductor layer in the cyclic structure section.








 
 
  Recently Added Patents
Packet transmission system and fault recovery method
Base station apparatus and communication control method
Method for parking or exiting a parking bay and for avoiding a collision of a vehicle, and corresponding assistance systems and vehicle
Replacing memory pointers with implicit pointers to be used in compiler-generated debug output
Printed circuit board unit having routing unit mounted thereon and computer device having the same
Fluorescent dyes, fluorescent dye kits, and methods of preparing labeled molecules
Progressively discovering and integrating services
  Randomly Featured Patents
L1/L2 GPS receiver
Mass production and long-term preservation of fungivorous nematodes and uses thereof
Kelly driver
Device for producing a coating rod for use in the paper industry
Anti-fuse circuit and method for anti-fuse programming and test thereof
Frequency-stabilized transmitting/receiving configuration
Canola cultivar CL121460H
Method for manufacturing a magnetic write pole having straight side walls and a well defined track-width
Power combiner
Sensor failure accommodation system