Browse Prior Art Database

Liquid Crystal Cell Seal

IP.com Disclosure Number: IPCOM000052051D
Original Publication Date: 1981-Apr-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Addy, J: AUTHOR [+2]

Abstract

A seal for a liquid crystal cell contains a non-wettable metal and a wettable metal.

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Liquid Crystal Cell Seal

A seal for a liquid crystal cell contains a non-wettable metal and a wettable metal.

As shown in Fig. 1, a picture frame of twin lines of a non-wettable metal 10, such as chromium is deposited on both a sheet of tin oxide coated glass 12 and a passivated silicon substrate 14. A wettable metal 15, such as copper-gold, is deposited on the substrate and the tin oxide coated glass within the twin lines of non-wettable metal 10. A solder alloy 16A is then deposited on top of the wettable metal 15.

The two parts are then positioned so that the solder alloy regions 16A are in contact with each other. The two parts are joined, as shown in Fig. 2, by heating in an oven to form the desired seal 16B.

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