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Printed circuit board via drilling stage assembly
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A technology for drilling tools and tool benches, applied in the field of target processing systems, which can solve problems such as limiting fast driving natural frequency and inefficiency
Inactive Publication Date: 2012-02-22
ELECTRO SCI IND INC
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Soft stiffness loops may have natural frequencies that limit rapid driving of various platforms
Another drawback is that, from a system throughput standpoint, the parallel configuration of multiple panels is a relatively inefficient way to handle multiple panels, especially when the footprint is considered
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[0138] figure 1 Shown is a decoupled multi-stage drilling system 5 which, in a preferred embodiment, supports the components of a laser processing system (depicted in detail, including laser 10, scanning lens 15 (4 shown) and beam deflector 20 (4 icons)), the laser beam propagates through these components, and thus is incident on the target 25 . Target 25 shows two artifacts 25a and 25b, but may include more or fewer artifacts. Each workpiece includes one or more devices, such as printed circuit boards, to be processed. Target 25 may comprise a printed circuit board panel, a flexible circuit web roll, or other suitable target. Alternative embodiments may support a mechanical drill (not shown) or other suitable drill or drilling equipment for addressing target 25 by, for example, drilling.
[0139] The drilling system 5 comprises a dimensionally stable lower base structure 30 formed of stone slabs preferably formed of granite or other suitable stone or of ceramic material, c...
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Abstract
A via drilling system (5, 700, 800, 900) is preferably constructed to process one target (25, 720, 820, 910) at a time. The via drilling system (5, 700, 800, 900) preferably provides a relatively small footprint for the via drilling system (5, 700, 800, 900), relatively small moment arms between via drilling system components, a relatively short stiffness loop, and a relatively fast processing time for a target (25, 720, 820, 910). Multiple tools (736, 836, 926) are preferably provided to perform multiple operations substantially simultaneously on the target (25, 720, 820, 910).
Description
technical field [0001] This case relates to object processing systems and, in particular, to benchtop architectures for producing vias in printed circuit boards and other objects. Background technique [0002] Printed circuit board (PCB) and flexible circuit panel drilling systems are typically configured with a multi-stage architecture and multiple drilling tools to process multiple panels simultaneously. Common benchtop architectures include a first platform for holding one or both of a PCB and a flexible circuit panel in a side-by-side configuration, which typically requires a relatively large footprint. The first platform typically moves along one axis of a Cartesian coordinate system and is substantially constrained from moving in the remaining two degrees of linear motion and three degrees of rotational motion. [0003] It is common in existing drilling systems to include a second platform for carrying drilling tools and for moving the tools along a second axis of a C...
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