Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-05-02
2006-05-02
Arbes, Carl J. (Department: 3729)
Metal working
Method of mechanical manufacture
Electrical device making
C029S740000, C029S825000, C029S833000, C438S014000, C438S015000
Reexamination Certificate
active
07036215
ABSTRACT:
An electronic-circuit-component mounting system including at least two component mounting units concurrently operated to mount electronic circuit components on a printed-wiring board, wherein a relative position of the two units is obtained from positions of a common calibration mark fixed provided on machine base commonly for the two units, which positions are detected by fiducial-mark cameras of the two units, or obtained from positions of fiducial marks provided on a fiducial board, which positions are detected by the cameras while the fiducial board is located in alignment with component mounting areas of the two units, and wherein positioning errors of the printed-wiring board relative to the two units are calculated on the basis of the obtained relative position of the two units, and positions of at least two fiducial marks provided on the printed-wiring board, which positions are detected by the cameras of the two units.
REFERENCES:
patent: 4979290 (1990-12-01), Chiba
patent: 5566447 (1996-10-01), Sakurai
patent: 6216341 (2001-04-01), Nakahara
patent: 6538425 (2003-03-01), Kawada
patent: 6555400 (2003-04-01), Farnworth et al.
patent: 6681468 (2004-01-01), Uchiyama et al.
patent: 6861269 (2005-03-01), Kawai et al.
Arbes Carl J.
Fuji Machine Mfg. Co. Ltd.
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