A method of registering a plurality of substrate boards in a laminated printed wiring panel to permit drilling for plated-through holes at centers of terminal areas, which have shifted from design locations during processing of the boards and panel, involves drilling of a small target pilot hole at a...http://www.google.fr/patents/US4898636?utm_source=gb-gplus-shareBrevet US4898636 - Multilayer printed wiring registration method and apparatus
Multilayer printed wiring registration method and apparatus
