Scratch-resistant and optically transparent materials and articles

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10603870
APP PUB NO 20170355172A1
SERIAL NO

15621170

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Importance

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Abstract

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Embodiments of a scratch-resistant and optically transparent material comprising silicon, aluminum, nitrogen, and optionally oxygen are disclosed. In one or more embodiments, the material exhibits an extinction coefficient (k) at a wavelength of 400 nm of less than about 1×10−3, and an average transmittance of about 80% or greater, over an optical wavelength regime in the range from about 380 nm to about 780 nm, as measured through the material having a thickness of about 0.4 micrometer. In one or more embodiments, the material comprises an intrinsic maximum hardness of about 12 GPa or greater as measured on a major surface of the material having a thickness of about 400 by a Berkovich Indenter Hardness Test along an indentation depth of about 100 nm or greater, low compressive stress and low roughness (Ra). Articles and devices incorporating the material are also disclosed.

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Patent Owner(s)

Patent OwnerAddress
CORNING INCORPORATEDONE RIVERFRONT PLAZA CORNING NY 14831

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Paulson, Charles Andrew Painted Post, US 44 283

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