Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Semiconductor laser device










Image Number 2 for United States Patent #5010375.

A semiconductor laser device include a Si substrate, a current confinement layer having an aperture disposed on the substrate, compound semiconductor layers disposed on the current confinement layer and on the Si substrate at the aperture of the current confinement layer, and a buffer layer for relieving the stress caused by the difference in lattice constants disposed between the Si substrate and the compound semiconductor layers. The Si substrate is of a first conductivity type and the current confinement layer is of a second conductivity type, or the current confinement layer comprises a compound semiconductor while the substrate comprises Si. The aperture of the current confinement layer is produced by anodic oxidation and selective etching of the current confinement layer. Therefore, a good re-growth interface at the substrate is obtained. There are no problems from residual oxides at the surface of the substrate, of Si or p type impurities diffusing out of the surface of the substrate, or of non-uniform thermal etching during the subsequent crystal growth processes.








 
 
  Recently Added Patents
System for programming domestic appliances and method for programming assembly-line programmable domestic appliances
Plants and seeds of hybrid corn variety CH367819
Processing financial documents
Signal processing apparatus and methods
Light emitting device and light emitting device package
Optical interconnect in high-speed memory systems
Method for producing a sulfonated polyarylether block copolymer
  Randomly Featured Patents
Particulate separation system for mercury analysis
Aluminum material coated with fluorine resin
Disc film advance assembly
Centrifugal pump
Adhesive closure for identification band and method
Kernel-based fast aerial image computation for a large scale design of integrated circuit patterns
Pallet
Wafer level package and manufacturing method thereof
Cellulose fibre
Motor proteins and methods for their use