Fiducial markings for quality verification of high density...

Details Fiducial markings for quality verification of high density... Fiducial markings for quality verification of high density...

2005-09-30

2009-11-10

Rahll, Jerry T (Department: 2874)

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

C361S777000

Reexamination Certificate

active

07614800

ABSTRACT:
A printed circuit board having a pattern of fiducial marks on opposed edges of the board for assuring accuracy and alignment of an electrical connector printed on the board. The fiducial marks are printed as staggered indicia extending orthogoral to the printed contact row array of the electrical connector so that when the board is cut or routed, an inspection process can determine if the physical edges of the board, which determine the pin alignment with a mating receptacle, are within specification.

REFERENCES:
patent: 5627931 (1997-05-01), Ackley et al.
patent: 6239590 (2001-05-01), Krivy et al.
patent: 6635866 (2003-10-01), Chan et al.
patent: 6656646 (2003-12-01), Hotta et al.

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