Browse Prior Art Database

Production of Through Holes in Glass Layers With Vaporizable Materials

IP.com Disclosure Number: IPCOM000094242D
Original Publication Date: 1966-Aug-01
Included in the Prior Art Database: 2005-Mar-06
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Kaiser, HD: AUTHOR [+3]

Abstract

Through-holes 1, drawing A, can be produced in glass layer 2 by first depositing a vaporizable screenable paste 3. The latter can be terephthalic acid, drawing B, dispersed in a vehicle employing an alpha methyl styrene resin, and is deposited on substrate 4 at the desired hole location. Layer 2 is then applied over substrate 4 and paste 3. Subsequent heating vaporizes paste 3 and blows a hole 1 through the glass 2, drawing A, leaving a void unwet by the glass. The through-holes permit layer-to-layer land contact where alternate layers of fired lands and glass are used.

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Production of Through Holes in Glass Layers With Vaporizable Materials

Through-holes 1, drawing A, can be produced in glass layer 2 by first depositing a vaporizable screenable paste 3. The latter can be terephthalic acid, drawing B, dispersed in a vehicle employing an alpha methyl styrene resin, and is deposited on substrate 4 at the desired hole location. Layer 2 is then applied over substrate 4 and paste 3. Subsequent heating vaporizes paste 3 and blows a hole 1 through the glass 2, drawing A, leaving a void unwet by the glass. The through-holes permit layer-to-layer land contact where alternate layers of fired lands and glass are used.

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