Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Youn-joon Sung0
Sung-nam Lee0
Tae-hoon Jang0
Tan Sakong0
Ho-sun Paek0
Joong-kon Son0
Date of Patent
January 27, 2009
Patent Application Number
11505871
Date Filed
August 18, 2006
Patent Primary Examiner
Patent abstract
A ridge-waveguide semiconductor laser diode with an improved current injection structure is provided. The ridge-waveguide semiconductor laser diode includes: a substrate; a lower multi-semiconductor layer formed on the substrate; an active layer formed on the lower multi-semiconductor layer; an upper multi-semiconductor layer having a ridge portion and formed on the active layer; and an upper electrode formed on the upper multi-semiconductor layer, wherein the upper electrode covers at least one side surface of the ridge portion.
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