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
Check weigher comprising of a rotating weighing chute with an accumulating and a discharge position that calculates flow rate by measuring weight accumulated during a predetermined time interv
Dye sensitised solar cell
Television with a stand
Field emission cathode device and field emission display using the same
Jewelry
Base station apparatus and method for use in mobile communication system
Flash drive
  Randomly Featured Patents
Marker lamp with halo effect
Apparatus for mounting a device on a mounting surface
Panel
Steering wheel for motor vehicles
Vertical takeoff and landing aircraft
Cable management system
Expediting reverse geocoding with a bounding region
High temperature valve
Continuous vacuum treating apparatus
Backlight and liquid crystal display device