The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 17, 2018

Filed:

Sep. 15, 2011
Applicants:

Seung Jae Hong, Sunnyvale, CA (US);

Casey J. Feinstein, San Jose, CA (US);

Lili Huang, San Jose, CA (US);

Sunggu Kang, San Jose, CA (US);

Kuo-hua Sung, San Jose, CA (US);

John Z. Zhong, Cupertino, CA (US);

Inventors:

Seung Jae Hong, Sunnyvale, CA (US);

Casey J. Feinstein, San Jose, CA (US);

Lili Huang, San Jose, CA (US);

Sunggu Kang, San Jose, CA (US);

Kuo-Hua Sung, San Jose, CA (US);

John Z. Zhong, Cupertino, CA (US);

Assignee:

APPLE INC., Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 1/03 (2006.01); C03C 21/00 (2006.01);
U.S. Cl.
CPC ...
C03C 21/002 (2013.01); Y10T 29/49124 (2015.01);
Abstract

Methods for chemically strengthening the edges of glass sheets are provided. Voids can be formed in a mother sheet. The edges of these voids may correspond to a portion of the new edges that would normally be created during separation and free shaping of the mother sheet. The mother sheet can then be immersed in a chemical strengthener. The edges of the voids can be chemically strengthened in addition to the front and back sides of the mother sheet. After thin film processing and separation, each of the resulting individual sheets has been chemically strengthened on both sides and on a portion of its edges.


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