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PWB Interconnect Strategy Using a Full Build Electroless Copper Plating System:: Part 2: Etch Characteristics

J. Cisson (Digital Equipment Corporation, Greenville, South Carolina, USA)
J. Seigo (Digital Equipment Corporation, Greenville, South Carolina, USA)
K. Minten (Digital Equipment Corporation, Greenville, South Carolina, USA)

Circuit World

ISSN: 0305-6120

Article publication date: 1 March 1992

Abstract

This paper constitutes a follow‐up to earlier work published in Circuit World, Vol. 17, No. 4. The first paper studied the metallographic structures of two commercially available full build electroless copper foils. Part 2 reports the investigations carried out into the etching characteristics of these copper foils, chemically deposited from full build electroless copper baths designated high elongation (HE) and high strength (HS). It is shown that, although attention should be given to the choice of etchant for these copper foils, they do not exhibit an uncontrollable etch rate, as is often feared.

Citation

Cisson, J., Seigo, J. and Minten, K. (1992), "PWB Interconnect Strategy Using a Full Build Electroless Copper Plating System:: Part 2: Etch Characteristics", Circuit World, Vol. 18 No. 4, pp. 5-12. https://doi.org/10.1108/eb046172

Publisher

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MCB UP Ltd

Copyright © 1992, MCB UP Limited