Touch interface using patterned bulk amorphous alloy
First Claim
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1. A touch sensing system comprising:
- a substrate comprising sense pads, each defined by a region of a crystalline form of a metal alloy and adjacent a region of an amorphous form of the metal alloy;
conducting traces in electrical connection with the sense pads; and
a control unit connected to at least one of the conducting traces and configured to calculate a position of an object relative to the substrate;
whereineach sense pad forms at least one circuit element.
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Abstract
Touch sensing systems comprising bulk-solidifying amorphous alloys and methods of making touch sensing arrays and electronic devices containing touch sensitive screens that include arrays containing bulk-solidifying amorphous alloys. The bulk-solidifying amorphous alloy substrates have select areas of crystalline and amorphous alloy providing for discrete areas of conductivity and resistivity.
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Citations
20 Claims
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1. A touch sensing system comprising:
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a substrate comprising sense pads, each defined by a region of a crystalline form of a metal alloy and adjacent a region of an amorphous form of the metal alloy; conducting traces in electrical connection with the sense pads; and a control unit connected to at least one of the conducting traces and configured to calculate a position of an object relative to the substrate;
whereineach sense pad forms at least one circuit element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electronic device comprising:
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a substrate comprising; a base portion comprising an amorphous form of a metal alloy; and first crystalline regions formed in the base portion and comprising a crystalline form of the metal alloy; conducting traces in electrical connection with the first and second crystalline regions; and a control unit connected to at least one of the conducting traces and configured to determine a capacitance between at least one of the first crystalline regions and at least one of the second crystalline regions. - View Dependent Claims (11, 12, 13, 14)
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15. A component for a touch sensing system, comprising:
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a monolithic substrate formed from a metal alloy having a single chemical composition, comprising; an amorphous portion of the metal alloy defining a first portion of the substrate; and crystalline regions of the metal alloy defining a second portion of the substrate; and conducting traces electrically connected to the crystalline regions and configured to be electrically connected to a control unit of the touch sensing system. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification