Substrate having an optically transparent EMI/RFI shield

Details Substrate having an optically transparent EMI/RFI shield Substrate having an optically transparent EMI/RFI shield

1994-07-21

1996-02-06

Ryan, Patrick J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428639, 428642, 428647, 428209, 428210, 428901, B32B 900

Patent

active

054894891

ABSTRACT:
A substrate having an optically transparent EMI/RFI shield. A transparent substrate (10) has a thin film metallization pattern (20) on one surface, and some of the pattern is covered with an optically transparent EMI/RFI shield (32). The shield comprises a vapor deposited layer of indium-tin oxide on the substrate surface and on the metallization pattern. The indium-tin oxide is optically transparent. It is patterned to expose one portion (34) of the metallization pattern and to cover a second portion (32) of the metallization pattern. The shield is electrically connected to a part (26) of the metallization pattern that is covered, thus providing electrical shielding and transparency.

REFERENCES:
patent: 4670097 (1987-06-01), Abdalla et al.
patent: 4835061 (1989-05-01), Ohta et al.

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