Browse Prior Art Database

Protection of Secondary Emission MgO Surface on Reflowed Dielectrics by Use of Inert Gas Processing

IP.com Disclosure Number: IPCOM000084331D
Original Publication Date: 1975-Oct-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Ahearn, WE: AUTHOR [+5]

Abstract

Inert gas has been used during the fabrication of gas discharge display panels incorporating electron beam evaporated dielectric and MgO emission surface layers, in conjunction with solder-glass seals joined directly to the conductive metallurgy and substrate plate glass.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 54% of the total text.

Page 1 of 1

Protection of Secondary Emission MgO Surface on Reflowed Dielectrics by Use of Inert Gas Processing

Inert gas has been used during the fabrication of gas discharge display panels incorporating electron beam evaporated dielectric and MgO emission surface layers, in conjunction with solder-glass seals joined directly to the conductive metallurgy and substrate plate glass.

The inert gas provides protection to the panel structure in two ways: (1) it protects the exposed metallurgy during the glass sealing operation, so that undue oxidation of the metal by gaseous oxidants does not occur; and (2) the inert gas protects the MgO emission surface from air constituents, such as CO(2) and H(2)O, and greatly facilitates achieving stable operating characteristics of a gas panel without the use of extensive bake-out burn-in procedures.

The described method relates to gas discharge display panels incorporating an MgO overcoat on reflowed dielectric layers and includes applying an inert gas, such as N(2), during the step of solder-glass sealing the panel parts, in order to protect the MgO overcoat. Also, using the inert gas protection of the MgO layer during handling and, in particular, during the sealing operation substantially reduces, if not eliminates, the need for burn-in conditioning.

Further, the requirement of thermal outgassing under vacuum for cleaning the interior of the panels can be replaced by the more simple process of gas flushing. Such cleaning can be used only...