Metal working – Means to assemble or disassemble – Means to assemble electrical device
Reexamination Certificate
2006-06-20
2006-06-20
Bryant, David P. (Department: 3726)
Metal working
Means to assemble or disassemble
Means to assemble electrical device
C029S745000, C029S847000, C029S846000, C029S852000, C219S121600, C219S121780, C219S653000
Reexamination Certificate
active
07062845
ABSTRACT:
A laser drilling system for drilling blind vias in printed circuit board panels, multichip modules and chipscale packages with top and bottom surfaces and which include multiple dielectric polymer and metal layers. The system includes a first laser module comprising a laser able to form at least one via per pulse through one or more polymer layers. The vias are circular or non-circular in shape. An articulated arm is adapted to move at a speed of about 200 inches per second and at an acceleration of about 5 g's or more. A beam delivery unit is attached to the articulated arm and a conveyor adapted to move panels at a constant speed. The first laser module positioned on a separate track from the conveyor moves at a faster rate than the conveyor to drill the top surface. A second laser module is positioned to move on another separate track from the conveyor movable at a faster rate so as to drill the bottom surface.
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Bryant David P.
Kenny Stephen
Laservia Corporation
Marger & Johnson & McCollom, P.C.
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