PCB tooling apparatus and method for forming patterns in registr

Details PCB tooling apparatus and method for forming patterns in registr PCB tooling apparatus and method for forming patterns in registr

1993-08-11

1995-04-04

Rosasco, S.

Radiation imagery chemistry: process, composition, or product th

Radiation modifying product or process of making

Radiation mask

430321, 430322, 430394, G03F 900

Patent

active

054036844

ABSTRACT:
The present invention includes a tooling apparatus designed to provide accurately aligned printed circuits on both major sides of a printed circuit board layer, especially advantageous for use in multi-layer PCB's. Also disclosed is the method manufacture of the apparatus and the methods of using the apparatus. The apparatus includes patterns formed on glass masks attached to frames incorporating alignment pins and slots. The patterns include registration marks for alignment during manufacture of the apparatus. During use, the apparatus allows accurate alignment of patterns on both sides of a PCB layer. Also disclosed is the apparatus with buttons used to pattern PCB layers having pre-drilled Z-axis holes.

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