Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Nitride semiconductor substrate and method for manufacturing the same, and nitride semiconductor device using nitride semiconductor substrate










Image Number 7 for United States Patent #6861729.

A nitride semiconductor substrate including (a) a supporting substrate, (b) a first nitride semiconductor layer having a periodical T-shaped cross-section, having grown from periodically arranged stripe-like, grid-like or island-like portions on the supporting substrate, and (c) a second nitride semiconductor substrate covering said supporting substrate, having grown from the top and side surfaces of said first nitride semiconductor layer, wherein a cavity is formed under the second nitride semiconductor layer.A protective layer having a periodically arranged stripe-like, grid-like or island-like apertures is formed on the supporting substrate. The first nitride semiconductor layer is laterally grown from the exposed portion of the substrate. The growth is stopped before the first nitride semiconductor layer covers the supporting substrate. Thus, the first nitride semiconductor layer has a periodical T-shaped cross-section. Then, the protective layer is removed and the second nitride semiconductor layer is grown from the top and side surface of the first nitride semiconductor layer to cover the substrate.








 
 
  Recently Added Patents
System and method for solving connection violations
Method and device for accessing the documentation of an aircraft according to alarms generated therein
Information distribution system, information distributing method, node, and recording medium
Flash multi-level threshold distribution scheme
Potential separation for filling level radar
Identification of electrical grid phase information for end-points in a grid network
Maize variety hybrid X03A157
  Randomly Featured Patents
Image receptor sheet or web material carrying a layer with a polysiloxane modified polymer
Graphics printer including device for maintaining print medium contact
Phase lock loops and methods for their operation
Method and device for controlling wheel brakes of a motor vehicle
Cloning of chicken anaemia DNA
Method and apparatus for providing agent swarm dispersal and separation by directed movement
Magnetic beam deflection system and method
Cremation urn lid with dragon emblem
Footwear
Process for producing mono-substituted alkylresorcinol isomers