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Glass substrates with improved compositions

A glass substrate, glass technology, applied in the field of glass substrates with improved composition, can solve the problems such as the limitation of glass substrates in fusion technology

Active Publication Date: 2021-06-25
CORNING INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, the fusion technique has a certain limitation on the strengthening of glass substrates via ion exchange

Method used

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  • Glass substrates with improved compositions
  • Glass substrates with improved compositions
  • Glass substrates with improved compositions

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0134] This disclosure includes the following numbered implementations:

Embodiment approach 1

[0135] Embodiment 1: A method of manufacturing a glass substrate comprising: obtaining a base glass having opposed first and second surfaces defining a thickness (t), and comprising a base composition comprising an alkali metal oxide; exposing the glass to a first ion exchange treatment comprising ions of a first metal to form a protected base glass; exposing the protected base glass to a second ion exchange treatment comprising ions of the first metal and ions of a second metal treating to form a modified base glass; and annealing the modified base glass to reduce stress and obtain a distribution concentration profile of an alkali metal oxide, an oxide of the first metal, and an oxide of the second metal to form a glass substrate.

Embodiment approach 2

[0136] Embodiment 2: A method of manufacturing a glass substrate comprising: obtaining a base glass having opposing first and second surfaces defining a thickness (t), and comprising a base composition comprising an alkali metal oxide; exposing the glass to a first ion exchange treatment comprising ions of a first metal to form a protected base glass; exposing the protected base glass to a second ion exchange treatment comprising ions of the first metal and ions of a second metal treating to form a modified base glass; and annealing the modified base glass to reduce residual stress to form a glass substrate, wherein the center of the glass substrate has an oxide concentration of the second metal higher than that of the base composition. The concentration of the oxide of the second metal.

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Abstract

Methods of making glass substrates comprise: obtaining a base glass from a bulk process; exposing the base glass to a first ion exchange treatment including ions of a first metal to form a protected base glass; exposing the protected base glass to a second ion exchange treatment including the ions of the first metal and ions of a second metal to form a modified base glass; and annealing the modified base glass to remove substantially all stress and to obtain a distributed concentration profile of the alkali metal oxide, an oxide of the first metal, and an oxide of the second metal, thereby forming the glass substrate.

Description

[0001] This application claims priority under 35 U.S.C. §119 to U.S. Provisional Application Serial No. 62 / 767,200, filed November 14, 2018, which is hereby based and is hereby incorporated by reference in its entirety. technical field [0002] Embodiments of the present disclosure generally relate to methods of manufacturing glass substrates with improved compositions. In particular, glass substrates are derived from base glasses that are easily fabricated in bulk processes and then processed to achieve new compositions that are suitable for strengthening. Background technique [0003] Glass-based articles are used in many various industries, including consumer electronics, transportation, construction, protective, medical, and packaging. For consumer electronics, glass-based articles are used in electronic devices as covers or windows for portable or mobile electronic communication and entertainment devices, such as cell phones, smartphones, tablets, video players, informa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/097C03C21/00
CPCC03C3/097C03C21/005C03C4/18C03C21/002C03C2204/00C03C23/007
Inventor V·M·施奈德
Owner CORNING INC