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










Image Number 17 for United States Patent #7796669.

A semiconductor laser diode capable of further improving temperature characteristics while sufficiently preventing a laser beam emission end surface portion from thermal destruction through a window structure is obtained. This semiconductor laser diode comprises an active layer having a window structure on a laser beam emission end surface portion and a p-type layer, formed on the surface of the active layer, containing Mg and Zn as impurities. The impurity concentration of Zn contained in the p-type layer is larger than the impurity concentration of Mg contained in the p-type layer.








 
 
  Recently Added Patents
Apparatus for preventing overcharge of a battery
Coupling device having piercing member
Pharmaceutical composition comprising gabapentin or an analogue thereof and an .alpha.-aminoamide and its analgesic use
Reconstruction of deforming surfaces by canceling ambient occlusion and refining 3-D shape
Signal conversion control circuit for touch screen and method thereof
Buckle
Resistive random access memory cell and resistive random access memory module
  Randomly Featured Patents
Footstool extension providing leg support
Method for reducing chloride emissions from a moving bed catalyst regeneration process
Sound absorbing portions of passenger carrying car
Climate control system with a vapour compression circuit combined with an absorption circuit
Internally located return electrode electrosurgical apparatus, system and method
Multi-layer container and preform and process for obtaining same
Location determination and location tracking in wireless networks
Method and apparatus for testing a semiconductor package
Combine chaff discharger
Safety box for safeguarding documents and the like