Glass substrate
AssigneeAGC Inc.
InventorsYoshitaka Ono, Nobuaki Ikawa, Motoichi Iga, Masaya Kunigita
Life of this patent
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Abstract
A glass substrate comprising a rectangular glass sheet having a first main surface and a second main surface opposite the first main surface, the glass substrate having a first side and a second side which are adjacent to each other in a view along a thickness direction of the glass sheet, in which a thickness tolerance is less than 6.26 μm in a first cross section which is a cross section in the thickness direction of the glass sheet along a straight line parallel to the first side, the thickness tolerance being a difference between the maximum value and the minimum value of the thickness of the glass sheet.
Claims22
A glass substrate comprising a rectangular glass sheet comprising a first main surface and a second main surface opposite the first main surface,
- wherein the glass substrate comprises a first side and a second side which are adjacent to each other in a view along a thickness direction of the glass sheet,
- wherein a thickness tolerance is less than 6.26 μm in a first cross section which is a cross section in the thickness direction of the glass sheet along a straight line parallel to the first side, wherein the thickness tolerance is a difference between the maximum value and the minimum value of the thickness of the glass sheet, and
- wherein the first main surface comprises a roughened region and an unroughened region, and a ratio of a roughness of the roughened region to the unroughened region is greater than 1.
A glass substrate comprising a rectangular glass sheet comprising a first main surface and a second main surface opposite the first main surface,
- wherein the glass substrate comprises a first side and a second side which are adjacent to each other in a view along a thickness direction of the glass sheet,
- wherein a thickness tolerance is less than 6.26 μm in a first cross section which is a cross section in the thickness direction of the glass sheet along a straight line parallel to the first side, wherein the thickness tolerance is a difference between the maximum value and the minimum value of the thickness of the glass sheet,
- wherein the first main surface comprises a first region and a second region, and
- a ratio of a fluorine content in the first region to a fluorine content in the second region is greater than 1.
Dependencies are inferred from the claim text.