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:
Jul. 08, 2014
Filed:
Dec. 20, 2011
Lei Wang, Fremont, CA (US);
William J. Kozlovsky, Sunnyvale, CA (US);
Lei Wang, Fremont, CA (US);
William J. Kozlovsky, Sunnyvale, CA (US);
Western Digital (Fremont), LLC, Fremont, CA (US);
Abstract
A method and system align a laser diode on a first substrate to a waveguide on a second substrate. The first substrate includes an edge and a first surface adjoining the edge. The laser diode has an emission exit on the edge. The second substrate includes a back side and a side edge. The waveguide has a waveguide input on the back side and directs light along the side edge. A first alignment mark set on the first substrate is aligned to a second alignment mark set on the second substrate. The first alignment mark set corresponds to the emission exit, is formed on the first surface and is visible from the edge. The second alignment mark set corresponds to the waveguide input, is formed on the side edge, and is visible from the back side. The first substrate's edge is affixed to the second substrate's back side.