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. 09, 2007
Filed:
Sep. 08, 2003
Seung-kee Yang, Suwon-shi, KR;
Ahn-goo Choo, Seoul, KR;
Seung-Kee Yang, Suwon-shi, KR;
Ahn-Goo Choo, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A light receiving element for converting a received light signal into an electric signal and its manufacturing method are disclosed. The light receiving element includes a semiconductor substrate of a first conduction type; a semiconductor layer of a second conduction type; and a photo-absorption layer interposed between the semiconductor substrate and the semiconductor layer of the second conduction type. The semiconductor substrate comprises: a first groove having an inclination with respect to an incidence plane of the light signal so that the light signal can be refracted when the light signal has been incident to the first groove; and a second groove by which the light signal having been refracted by the first groove is reflected fully and then absorbed into the photo-absorption layer, so that a vertical-incidence drift of the light signal toward the photo-absorption layer is minimized.