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:
Oct. 18, 2022
Filed:
Mar. 11, 2019
Applicant:
Hoya Corporation, Tokyo, JP;
Inventor:
Masao Takano, Akishima, JP;
Assignee:
HOYA CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/32 (2006.01); B24B 9/10 (2006.01); B32B 7/022 (2019.01); G11B 5/73 (2006.01); B32B 27/36 (2006.01); B32B 27/40 (2006.01); B32B 37/10 (2006.01); B32B 37/14 (2006.01); B32B 37/18 (2006.01); B32B 38/00 (2006.01); C03C 19/00 (2006.01); G11B 5/84 (2006.01);
U.S. Cl.
CPC ...
B24B 9/10 (2013.01); B32B 7/022 (2019.01); B32B 27/32 (2013.01); B32B 27/36 (2013.01); B32B 27/40 (2013.01); B32B 37/10 (2013.01); B32B 37/144 (2013.01); B32B 37/18 (2013.01); B32B 38/105 (2013.01); C03C 19/00 (2013.01); G11B 5/73921 (2019.05); G11B 5/8404 (2013.01); B32B 2250/42 (2013.01); B32B 2307/7265 (2013.01); B32B 2307/734 (2013.01); B32B 2315/08 (2013.01); B32B 2323/10 (2013.01); B32B 2367/00 (2013.01); B32B 2375/00 (2013.01); B32B 2429/02 (2013.01);
Abstract
The area of a spacer that is to be provided between the adjacent substrates in a laminate including a plurality of substrates to keep the adjacent substrates apart from each other is smaller than those of the stacked substrates. When pressure is released to bring the laminate obtained by providing the spacers between the substrates from a pressed state in which 0.60 MPa of pressure is applied to the laminate in the stacking direction into a non-pressed state, an amount of change ΔW in thickness per spacer that is calculated from a change in the thickness of the laminate due to the release of pressure is 30 μm or less.