公开(公告)号：US20170260079A1

公开(公告)日：2017-09-14

申请号：US15455910

申请日：2017-03-10

Applicant: Corning Incorporated

Inventor： Jason Thomas Harris ,  Guangli Hu ,  Yousef Kayed Qaroush ,  Irene Marjorie Slater ,  Vijay Subramanian ,  Sam Samer Zoubi

IPC: C03B27/012 ,  H05K5/00 ,  H05K5/03 ,  C03C21/00

CPC classification number: C03B27/012 ,  B32B17/06 ,  C03C21/00 ,  C03C21/002 ,  C03C27/06 ,  H04M1/185 ,  H05K5/0017 ,  H05K5/03 ,  Y10T428/10

Abstract: Glass articles comprising an outer region extending from an outer surface of the glass article to a depth of layer and methods of making the same are described. The outer region is bounded by at least one edge of the glass article and is under an intrinsic neutral stress or an intrinsic compressive stress. A core region of the glass article is under a tensile stress. A compressive element applies an external compressive stress to the at least one edge and increases the intrinsic stress on the outer region and reduces the tensile stress in the core region of the glass article. The glass article may be a strengthened glass article such that the outer region is under compressive stress, and the external compressive stress applied by the compressive element has a magnitude such that the glass article has an overall internal stress defined by: ∫0tσdt≠0 where t is a thickness of the glass article and σ is the internal stress.