公开(公告)号：US20170129803A1

公开(公告)日：2017-05-11

申请号：US15416205

申请日：2017-01-26

Applicant: CORNING INCORPORATED

Inventor： Jaymin Amin ,  Benedict Osobomen Egboiyi ,  Pascale Oram ,  Jonathan David Pesansky ,  Kevin Barry Reiman ,  Rostilav Vatchev Roussev ,  Vitor Marino Schneider ,  Brian Paul Strines

IPC: C03C3/097 ,  G06F1/16 ,  C03C4/18 ,  C03C21/00 ,  C03C3/091 ,  C03C3/085

CPC classification number: C03C21/002 ,  C03C3/04 ,  C03C3/085 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  C03C3/095 ,  C03C3/097 ,  C03C4/18 ,  C03C21/00 ,  C03C2204/00 ,  G06F1/1637 ,  G06F2200/1634 ,  H04B1/3827 ,  Y10T428/315

Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of layer DOL of about 130 μm up to about 175 μm or, alternatively, to a depth of compression (DOC) in a range from about 90 μm to about 120 μm within the article. The compressive layer has a stress profile that includes a first substantially linear portion extending from a relatively shallow depth to the DOL or DOC and a second portion extending from the surface to the shallow depth. The second portion is substantially linear at a depth from 0 μm to 5 μm and has a steeper slope than that of the first portion of the profile. Methods of achieving such stress profiles are also described.