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:
Feb. 17, 2004
Filed:
Jul. 02, 2002
Applicant:
Inventors:
Yongsoon Baek, Daejon, KR;
Jungwoo Park, Seoul, KR;
Sungbock Kim, Daejon, KR;
Kwangryong Oh, Daejon, KR;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/100 ;
U.S. Cl.
CPC ...
H01L 2/100 ;
Abstract
A method of fabricating a monolithic integrated semiconductor photonic device is provided. In this method, it is possible to remarkably reduce an optical loss in a passive waveguide by forming a non-doped clad layer around a passive layer. Thus, the passive waveguide can be effectively coupled with an active waveguide. Further, a current confinement layer is formed around an active layer, using the non-doped clad layer. Therefore, an expensive tool such as an ion implanter is not required, thereby decreasing manufacturing costs.