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:
Oct. 12, 1999
Filed:
Aug. 27, 1997
Robert Addison Boudreau, Hummelstown, PA (US);
Dennis Bowler, Sudbury, MA (US);
Hongtao Han, Mechanicsburg, PA (US);
Daniel Pulver, North Reading, MA (US);
John Woodhouse, Lexington, MA (US);
Ping Zhou, Mechanicsburg, PA (US);
The Whitaker Corporation, Wilmington, DE (US);
Lasertron Incorporated, Bedford, MA (US);
Abstract
A technique for passive alignment of an opto-electronic device, such as laser, by alignment fiducials to a silicon wafer board utilizes a tilted notch in the opto-electronic device. This system overcomes limitations using standard etched notches for previous passive alignment systems. Specifically, the tilted notch presents a range of offset distances between the edge of the notch and the active light-emitting spot of the laser. Depending on the location at which the wafer is diced or cleaved, the distance from the notch on the laser to the laser stripe can be adjusted after the laser wafer is fabricated.