Resources Contact Us Home
Semiconductor laser

Image Number 3 for United States Patent #5640409.

A semiconductor light-emitting device capable of emitting blue to green light is disclosed. The device comprises a first cladding layer of the first conduction type stacked on a compound semiconductor substrate and made of ZnMgSSe compound semiconductor; an active layer stacked on the first cladding layer; a second cladding layer of the second conduction type stacked on the active layer and made of a ZnMgSSe compound semiconductor; and ZnSSe compound semiconductor layers provided on the second cladding layer and/or between the compound semiconductor substrate and the first cladding layer. The device has good optical confinement characteristics and carrier confinement characteristics, generates only a small amount of heat during its operation, and is fabricated easily.

  Recently Added Patents
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Sealed, waterproof digital electronic camera system and method of fabricating same
Method of using N-thio compounds for oligonucleotide synthesis
Method and apparatus for exercise monitoring combining exercise monitoring and visual data with wireless internet connectivity
Backside structure and methods for BSI image sensors
  Randomly Featured Patents
Fluorinated polymers and resins prepared therefrom
Apparatus and method for automatically milking animals
Concrete-finishing machine
Curtain hook
Electrical power entry
Cable and hose guide
Photoconductive recording material having a crosslinked binder system
Trailer hitch
Composite article of cellulose esters and thermoplastic elastomers
Process for producing 1,1-dichloro-1-fluoroethane and/or 1-chloro-1,1-difluoroethane free of vinylidene chloride