Browse Prior Art Database

High Resolution Gap Spacers for Gas Panels

IP.com Disclosure Number: IPCOM000086080D
Original Publication Date: 1976-Jul-01
Included in the Prior Art Database: 2005-Mar-03
Document File: 2 page(s) / 23K

Publishing Venue

IBM

Related People

Anderson, LC: AUTHOR [+2]

Abstract

A publication entitled "Gas Panel Spacer Assembly," IBM Technical Disclosure Bulletin, Vol. 18, No. 6, November 1975, Pages 1923-1924, describes a method for the positioning of spacer rods in a gas panel assembly, to control the discharge gap of the panel without intrusion into the electrode containing portions of the panel, particularly in the case of medial spacers.

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High Resolution Gap Spacers for Gas Panels

A publication entitled "Gas Panel Spacer Assembly," IBM Technical Disclosure Bulletin, Vol. 18, No. 6, November 1975, Pages 1923-1924, describes a method for the positioning of spacer rods in a gas panel assembly, to control the discharge gap of the panel without intrusion into the electrode containing portions of the panel, particularly in the case of medial spacers.

As taught in the above publication, the dielectric is initially applied over the conductors in frit form and then reflowed. The grooves 9 are cut in the uncured dielectric and the spacer positioned therein such that when the dielectric layer 5 is reflowed, one or both sides of the spacer rod 7 are wetted and the rod is imbedded in the dielectric. While the specific technique for providing the grooves is not taught in the above publication, mechanical scribing of the unfired dielectric coating 5 represents the preferred process.

The mechanical scribing process causes horizontal tearing into the unfired dielectric, the scribe blade wear produces a changing cutting profile and the mechanical scribe varies with the drying conditions and time-to-scribe of the unfired dielectric. Thus the mechanical scribing technique is not adaptable for high-resolution panels which allow only 10 mils for rod placement with virtually zero tolerance.

These problems are eliminated and high-resolution grooves are cut into the unfired dielectric by air abrading. Referring to the dra...