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Water-Soluble Solder Mask

IP.com Disclosure Number: IPCOM000043461D
Original Publication Date: 1984-Sep-01
Included in the Prior Art Database: 2005-Feb-04

Publishing Venue

IBM

Related People

Authors:
Bakos, P Franchak, NP Funari, J Rivenburgh, DL [+details]

Abstract

A water-soluble solder mask having desired qualities can be formulated by adding the materials listed to the commercially available Alpha 110 (available from Alpha Metals Inc.). The materials added to Alpha 110 are: N-Methyl-2-Pyrrolidone 1 to 3 percent Triethanolamine 4 to 5 percent Glycerin 1 to 2 percent Polydimethylsiloxane 5 percent A solder mask formulated, as described above, can be screened onto ceramic substrates. Such a film is high temperature resistant. The mask can be easily removed by cold or warm water.