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. 30, 1988
Filed:
Jun. 30, 1986
Applicant:
Inventor:
Garry R Adams, Great Dunmow, GB;
Assignee:
ITT Gallium Arsenide Technology Center, A Division of ITT Corporation, Roanoke, VA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 30 ; 357 19 ; 357 32 ; 357 40 ; 357 45 ; 372 50 ;
Abstract
Integrated circuits are tested prior to separation from a processed wafer. ach circuit has photoreceivers coupled via metallization tracks to an adjacent circuit. The receivers are used for the input of high speed optical test signals. The intercircuit coupling tracks are severed when the wafer is scribed to separate the individual circuits thus removing the electrical parasitic effects of the receivers.