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. 07, 1992
Filed:
Jul. 11, 1990
Craig A Armiento, Acton, MA (US);
Chirravuri Jagannath, Medfield, MA (US);
Marvin J Tabasky, West Peabody, MA (US);
Thomas W Fitzgerald, Framingham, MA (US);
Harry F Lockwood, Waban, MA (US);
Paul O Haugsjaa, Acton, MA (US);
Mark A Rothman, Acton, MA (US);
Vincent J Barry, Framingham, MA (US);
Margaret B Stern, Sudbury, MA (US);
GTE Laboratories Incorporated, Waltham, MA (US);
Abstract
A method of passively aligning optical receiving elements such as fibers to the active elements of a light generating chip includes the steps of forming two front and one side pedestal structures on the surface of a substrate body, defining a vertical sidewall of the chip to form a mating channel having an edge at a predetermined distance from the first active element, mounting the chip epi-side down on the substrate surface, and positioning the fibers in fiber-receiving channels to that a center line of each fiber is aligned to a center line of a respective active element. When mounted, the front face of the chip is abutting the contact surfaces of the two front pedestals, and the defined sidewall of the mating channel is abutting the contact surface of the side pedestal. The passive alignment procedure is also effective in aligning a single fiber to a single active element.