The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 27, 2009
Filed:
Aug. 18, 2006
Joong-kon Son, Seoul, KR;
Tae-hoon Jang, Seoul, KR;
Youn-joon Sung, Yongin-si, KR;
Tan Sakong, Suwon-si, KR;
Ho-sun Paek, Suwon-si, KR;
Sung-nam Lee, Suwon-si, KR;
Joong-kon Son, Seoul, KR;
Tae-hoon Jang, Seoul, KR;
Youn-joon Sung, Yongin-si, KR;
Tan Sakong, Suwon-si, KR;
Ho-sun Paek, Suwon-si, KR;
Sung-nam Lee, Suwon-si, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
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.