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:
Nov. 19, 2019
Filed:
Apr. 16, 2018
Applicant:
Canon Kabushiki Kaisha, Tokyo, JP;
Inventors:
Assignee:
CANON KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B41J 2/155 (2006.01); B41J 2/14 (2006.01); B41J 2/16 (2006.01); B41J 2/21 (2006.01); H01L 21/78 (2006.01); H01L 21/66 (2006.01); H01L 23/482 (2006.01); H01L 23/544 (2006.01); H01L 23/00 (2006.01); H01L 23/58 (2006.01);
U.S. Cl.
CPC ...
B41J 2/14072 (2013.01); B41J 2/155 (2013.01); B41J 2/1601 (2013.01); B41J 2/1635 (2013.01); B41J 2/2103 (2013.01); H01L 21/78 (2013.01); H01L 22/34 (2013.01); H01L 23/4824 (2013.01); H01L 23/544 (2013.01); H01L 23/564 (2013.01); H01L 23/585 (2013.01); B41J 2202/13 (2013.01); B41J 2202/18 (2013.01); B41J 2202/20 (2013.01); H01L 2223/5446 (2013.01);
Abstract
A print head substrate includes: a substrate surface including a plurality of printing elements and a plurality of pads disposed along a first side and electrically connected to the printing elements, the substrate surface having an acute angle portion formed by the first side and a second side; and a test element group (TEG) area including a TEG not electrically connected to the printing elements, at least a part of the TEG area being located between the second side and a pad closest to a vertex of the acute angle portion among the pads.