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:
May. 23, 1995
Filed:
Dec. 30, 1993
Mark B Cholewa, Mt. Penn Township, Berks County, PA (US);
John W Osenbach, Kutztown, PA (US);
Bryan P Segner, Piscataway, NJ (US);
AT&T Corp., Murray Hill, NJ (US);
Abstract
A method of fabricating a semiconductor electro-optical device in which a cleaving apparatus is used to separate the wafer into bars of semiconductor material by striking the wafer from the epitaxial side, directly beneath the substrate side scribe mark. A series of angularly shaped trenches are etched across the epitaxial side of the semiconductor bars to permit bar separation into individual devices that allows a plurality of bars to be processed simultaneously.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile