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Electronic device having selectively strengthened glass

  • US 9,725,359 B2
  • Filed: 09/16/2011
  • Issued: 08/08/2017
  • Est. Priority Date: 03/16/2011
  • Status: Active Grant
First Claim
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1. A method for assembling an electronic product comprising:

  • obtaining a cover glass having an outward facing surface and an inner facing surface;

    selectively chemically strengthening one surface region of the outward facing surface of the cover glass differently than chemically strengthening an other surface region of the outward facing surface of the cover glass, the one surface region located at a periphery of the cover glass and having a width less than the width of the other surface region which is not at the periphery of the cover glass; and

    subsequently attaching the cover glass to a housing for the electronic product such that the outward facing surface of the cover glass remains at least partially exposed,wherein the one surface region and the other surface region are both different portions of the outward facing surface of the cover glass, andwherein the enhanced strengthening of the one surface region comprises both;

    a) disposing the one surface region in a first heated solution for a first period of time, so as to allow at least one component of the first heated solution to diffuse into the one surface region, and b) thereafter disposing the one surface region in a second heated solution for a second period of time, so as to allow at least one component of the second heated solution to diffuse into the one surface region.

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