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.
Patent No.:
Date of Patent:
Jun. 02, 2015
Filed:
Nov. 16, 2012
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Ming-Chin Hung, Cupertino, CA (US);
Young Bae Park, San Jose, CA (US);
Chun-Yao Huang, Cupertino, CA (US);
Shih Chang Chang, Cupertino, CA (US);
John Z. Zhong, Cupertino, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01); H01L 29/66 (2006.01); H01L 29/786 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 29/66742 (2013.01); H01L 29/7869 (2013.01); H01L 27/1225 (2013.01); H01L 29/66969 (2013.01);
Abstract
Embodiments of the present disclosure relate to display devices and methods for manufacturing display devices. Specifically, embodiments of the present disclosure employ an enhanced etching process to create uniformity in the gate insulator of thin-film-transistor (TFTs) by using an active layer to protect the gate insulator from inadvertent etching while patterning an etch stop layer.