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:
Aug. 23, 2005
Filed:
Sep. 09, 2003
Terry Patrick Bowen, Etters, PA (US);
William Sean Ring, Ringoes, NJ (US);
Ching-long Jiang, Belle Mead, NJ (US);
Randall B. Wilson, Warren, NJ (US);
Mark S. Soler, Santa Barbara, CA (US);
John Baker Breedis, Boston, MA (US);
Richard Anderson, Etters, MA (US);
Terry Patrick Bowen, Etters, PA (US);
William Sean Ring, Ringoes, NJ (US);
Ching-Long Jiang, Belle Mead, NJ (US);
Randall B. Wilson, Warren, NJ (US);
Mark S. Soler, Santa Barbara, CA (US);
John Baker Breedis, Boston, MA (US);
Richard Anderson, Etters, MA (US);
Tyco Electronics Corporation, Middletown, PA (US);
Abstract
The present invention relates to a technique for fabricating a mechanical or visual alignment fiducial on a laser die particularly adapted for application with a laser die that is a buried structure edge emitting laser. In fabricating the device, the fiducial and the active mesa are formed in the same photolithography patterning step, using conventional techniques. The active is then buried with regrowth layers. The regrowth layers are subsequently selectively etched to expose the fiducial, leaving the active region protected and buried.