Transparent article having protective silicon nitride film
First Claim
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1. A method of making a transparent article comprising:
- providing a transparent, non-metallic substrate; and
depositing upon the substrate, in sequence, a first dielectric film, a metal film, a second dielectric film of a metal oxide, and a protective film of silicon nitride having a thickness in the range of 10 to 150 Å
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Abstract
Transparent articles comprising transparent, nonmetallic substrate and a transparent film stack is sputter deposited on the substrate. The film stack is characterized by including at least one infrared reflective metal film, a dielectric film over the metal film, and a protective silicon nitride film of 10 Å to 150 Å in thickness over the said dielectric film. The dielectric film desirably has substantially the same index of refraction as does silicon nitride and is contiguous with the silicon nitride film.
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Citations
18 Claims
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1. A method of making a transparent article comprising:
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providing a transparent, non-metallic substrate; and
depositing upon the substrate, in sequence, a first dielectric film, a metal film, a second dielectric film of a metal oxide, and a protective film of silicon nitride having a thickness in the range of 10 to 150 Å
. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of making a transparent article comprising:
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providing a transparent, non-metallic substrate; and
depositing upon the substrate, in sequence, a dielectric film contiguous to the transparent substrate, a metal film, a shielding film contiguous to the metal film, a metal oxide film, and a protective film of from 10 Å
to 150 Å
of silicon nitride contiguous to said metal oxide film. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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Specification