Perforated mother sheet for partial edge chemical strengthening and method therefor
First Claim
Patent Images
1. A method comprising:
- forming one or more voids passing through a mother sheet of glass from a first surface of the mother sheet to a second surface of the mother sheet opposite the first surface;
processing the mother sheet to strengthen one or more edges of the one or more voids in the mother sheet, the processing of the mother sheet to strengthen the one or more edges includes at least chemically strengthening of the one or more edges using ion exchange; and
separating the mother sheet to form a plurality of individual sheets,wherein at least one of the one or more voids are formed along an entire length of at least one edge of one or more of the plurality of individual sheets, andwherein at least a portion of each of the individual sheets is a component for a touch sensor.
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Abstract
Methods for chemically strengthening the edges of glass sheets are provided. Voids can be formed in a mother sheet. The edges of these voids may correspond to a portion of the new edges that would normally be created during separation and free shaping of the mother sheet. The mother sheet can then be immersed in a chemical strengthener. The edges of the voids can be chemically strengthened in addition to the front and back sides of the mother sheet. After thin film processing and separation, each of the resulting individual sheets has been chemically strengthened on both sides and on a portion of its edges.
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Citations
22 Claims
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1. A method comprising:
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forming one or more voids passing through a mother sheet of glass from a first surface of the mother sheet to a second surface of the mother sheet opposite the first surface; processing the mother sheet to strengthen one or more edges of the one or more voids in the mother sheet, the processing of the mother sheet to strengthen the one or more edges includes at least chemically strengthening of the one or more edges using ion exchange; and separating the mother sheet to form a plurality of individual sheets, wherein at least one of the one or more voids are formed along an entire length of at least one edge of one or more of the plurality of individual sheets, and wherein at least a portion of each of the individual sheets is a component for a touch sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method comprising:
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forming one or more voids in a mother sheet of glass; processing the mother sheet using ion exchange to strengthen one or more edges of the one or more voids in the mother sheet; filling the one or more voids with a plug material; processing the mother sheet to form conductive traces on the mother sheet; removing the plug material from the one or more voids; and subsequent to removing the plug material, separating the mother sheet to form a plurality of individual sheets, wherein at least one entire edge length of at least one of the plurality of individual sheets forms an edge of at least one of the one or more voids; wherein at least a portion of a perimeter of each of the plurality of individual sheets is chemically strengthened. - View Dependent Claims (16, 17, 18, 19, 20)
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21. A method comprising:
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forming one or more voids passing through a mother sheet of glass; processing the mother sheet to strengthen one or more edges of the one or more voids in the mother sheet, the processing of the mother sheet to strengthen the one or more edges includes at least chemically strengthening of the one or more edges using ion exchange; and separating the mother sheet to form a plurality of individual sheets, after processing the mother sheet, wherein at least one side of the one or more voids are formed along an entire length of at least one side of at least one of the plurality of individual sheets, wherein at least a substantial portion of a perimeter of at least one of the plurality of individual sheets is strengthened. - View Dependent Claims (22)
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Specification