Method for determining drill target locations in a multilayer board panel

In order to correct for misregistration of solder pads in multilayer board (MLB) panels and determine drill target locations through vertical stacks of the solder pads, a fixture is prepared with fixture holes arranged in a pattern that corresponds with the locations of fiducial pads that are locate...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	ZACHMAN, JULIE C, HUDZIK, JAMES S, KUNTZ, ROBERT A, SMITH, STEVEN R
Format:	Patent
Sprache:	eng
Schlagworte:	CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY MACHINE TOOLS MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS PRINTED CIRCUITS TRANSPORTING
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