Multi-tool positioning system

Details Multi-tool positioning system Multi-tool positioning system

1996-10-10

1998-12-08

Elmore, Reba I.

Boots, shoes, and leggings

36416703, 36447428, 36447435, 36447436, G06F 1900, G06G 764, G06G 766

Patent

active

058479600

ABSTRACT:
A multi-rate, multi-head positioner (150) receives and processes unpanelized positioning commands to actuate slow stages (56, 58) and multiple fast stages (154) that are mounted on one of the slow stages to simultaneously position multiple tools (156) relative to target locations (162) on multiple associated workpieces (152). Each of the fast stages is coupled to a fast stage signal processor (172) that provides corrected position data to each fast stage positioner to compensate for fast stage nonlinearities and workpiece placement, offset, rotation, and dimensional variations among the multiple workpieces. When cutting blind via holes in etched circuit boards (ECBs), improved throughput and process yield are achieved by making half of the tools ultraviolet ("UV") lasers, which readily cut conductor and dielectric layers, and making the other half of the tools are infrared ("IR") lasers, which readily cut only dielectric layers. The UV lasers are controlled to cut an upper conductor layer and a portion of an underlying dielectric layer, and the IR lasers are controlled to cut the remaining dielectric layer without cutting through or damaging a second underlying conductor layer. The throughput is increased by cutting conductor layers in unprocessed ECBs while concurrently cutting dielectric layers in ECBs that have already had their conductor layer cut. The process yield is increased by performing a workpiece calibration prior to each cutting step to account for any ECB placement, offset, rotation, and dimensional variations.

REFERENCES:
patent: 4326824 (1982-04-01), Lasermann et al.
patent: 4532402 (1985-07-01), Overbeck
patent: 4616326 (1986-10-01), Meier et al.
patent: 4618938 (1986-10-01), Sandland et al.
patent: 4681452 (1987-07-01), Watanabe
patent: 4873478 (1989-10-01), Weiss
patent: 4876656 (1989-10-01), Leicht et al.
patent: 4941082 (1990-07-01), Pailthorp et al.
patent: 4977494 (1990-12-01), Gabaldon et al.
patent: 4990840 (1991-02-01), Migda
patent: 5126648 (1992-06-01), Jacobs
patent: 5220262 (1993-06-01), Kneifel, II et al.
patent: 5255199 (1993-10-01), Barkman et al.
patent: 5262707 (1993-11-01), Okazaki et al.
patent: 5315526 (1994-05-01), Maeda et al.
patent: 5377096 (1994-12-01), Ono
patent: 5452275 (1995-09-01), Ogawa
patent: 5453594 (1995-09-01), Konecny
patent: 5453933 (1995-09-01), Wright et al.

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