Patent ID: 9701569
Date: 2017-07-11
CPC Classifications: B32B,C03C,G06F,H05K

Claim:
1. A strengthened glass article comprising: a first surface and a second surface opposing the first surface defining a thickness (t) of about 3 mm or less; a compressive stress layer extending from the first surface to a depth of compression (DOC) of greater than 0.16·t as measured by scattered light polariscope, the compressive stress layer comprising a surface compressive stress of 400 MPa or greater, as measured by a combination of scattered light polariscope and surface stress meter; and a maximum central tension that is 50 MPa or greater as measured by scattered light polariscope, wherein, after the glass article fractures according to a Frangibility Test, the glass article includes a plurality of fragments, wherein at least 90% of the plurality of fragments have an aspect ratio of about 5 or less.