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Preparing Glass Masters

IP.com Disclosure Number: IPCOM000073779D
Original Publication Date: 1971-Feb-01
Included in the Prior Art Database: 2005-Feb-23
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Mesley, NN: AUTHOR

Abstract

This is a method of preparing glass masters for use in the production of printed circuitry.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 100% of the total text.

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Preparing Glass Masters

This is a method of preparing glass masters for use in the production of printed circuitry.

The surface of a flat transparent glass substrate is coated with a solution consisting of a polyvinyl alcohol-catalytic agent complex (the catalytic agent preferably being palladium chloride). The substrate is then dried and immersed into an electroless metal bath. The metal coated substrate is coated with a conventional photoresist, exposed to actinic radiation, developed and the exposed metal is subsequently etched to provide a desired metal pattern. The deposited metal adheres very strongly to the substrate without prior mechanical or chemical roughening.

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