Title:
ガラス基板
Document Type and Number:
Japanese Patent JP7473021
Kind Code:
B2
Abstract:
A glass substrate includes a plurality of through holes that penetrate from a first surface to a second surface of the glass substrate. Each through hole has an upper aperture with a first diameter on the first surface and a lower aperture with a second diameter on the second surface. For each of ten through holes selected from the plurality of through holes, a side wall length is obtained from the first and second diameters and the thickness of the glass substrate, and an R value is obtained by dividing the side wall length by the thickness of the glass substrate. The R values fall within a range of 1 to 1.1. A B value, obtained from dividing a difference between the greatest R value and the smallest R value by an average of the R values followed by multiplication with 100, is 5% or less.
Inventors:
Shigetoshi Mori
Genji Ono
Mamoru Isobe
Kohei Horiuchi
Genji Ono
Mamoru Isobe
Kohei Horiuchi
Application Number:
JP2023003131A
Publication Date:
April 23, 2024
Filing Date:
January 12, 2023
Export Citation:
Assignee:
AGC Inc.
International Classes:
C03C23/00; C03B33/09; C03C15/00; H05K1/02
Domestic Patent References:
| JP2016222529A | ||||
| JP5245672A | ||||
| JP11177200A | ||||
| JP2010287878A |
Foreign References:
| WO2015072259A1 | ||||
| WO2010087483A1 |
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito
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