Composite having transparent conductor pattern

Details Composite having transparent conductor pattern Composite having transparent conductor pattern

1980-01-04

1981-03-10

Hoffman, James R.

Stock material or miscellaneous articles

Two dimensionally sectional layer

Transparent or translucent layer or section

428 49, 428141, 428212, 428432, 428702, 428941, 428635, 428642, B32B 500, B32B 1706

Patent

active

042554748

ABSTRACT:
A continuous layer of transparent material is formed on a base. A desired pattern of transparent electrically conductive material is included in the layer. The regions of the layer not included in the conductor pattern are insulative. The insulative material is preferably an indium oxide. Tin is preferably used as a dopant in the indium oxide to made it electrically conductive according to the desired pattern. The electrically conductive pattern is first formed in metallic tin. The tin pattern is diffused into a layer of metallic indium. The layer is then thermally oxidized to form the electrically conductive pattern as indium-tin-oxide (ITO) in indium sesquioxide, In.sub.2 O.sub.3, an insulator.

REFERENCES:
patent: 2932590 (1960-04-01), Barrett
patent: 2971867 (1961-02-01), Lytle
patent: 3455722 (1969-07-01), Kushihashi
patent: 3814501 (1974-06-01), Schindler
patent: 3944684 (1976-03-01), Kane
patent: 3957029 (1976-05-01), Nozik
patent: 4010291 (1977-03-01), Katsube
patent: 4025944 (1977-05-01), Moon
patent: 4048372 (1977-09-01), Ando
Seki et al., IBM Technical Disclosure Bulletin, vol. 6, No. 5, Oct. 1963, p. 68.

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