公开(公告)号：US20230348315A1

公开(公告)日：2023-11-02

申请号：US18331230

申请日：2023-06-08

Applicant: AGC Inc.

Inventor： Takato KAJIHARA ,  Shigeki SAWAMURA ,  Rikiya KADO ,  Yutaka KUROIWA ,  Shusaku AKIBA

IPC: C03C3/089 ,  C03C3/097 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  B32B17/10

CPC classification number: C03C3/097 ,  B32B17/10036 ,  B32B17/1055 ,  C03C3/087 ,  C03C3/089 ,  C03C3/091 ,  C03C3/093 ,  B32B2307/204 ,  B32B2307/412 ,  B32B2307/54 ,  B32B2307/72 ,  B32B2307/734 ,  B32B2307/7376 ,  B32B2605/00

Abstract: A glass plate includes, in terms of molar percentage based on oxides: 50% ≤ SiO2 ≤ 80%; 5.0% ≤ Al2O3 ≤ 10%; 5.0% 0.0%; and 0.30

公开(公告)号：US20230192540A1

公开(公告)日：2023-06-22

申请号：US18108535

申请日：2023-02-10

Applicant: AGC Inc.

Inventor： Hitomi FURUTA ,  Qing LI ,  Shigeki SAWAMURA ,  Shusaku AKIBA ,  Seiji INABA

IPC: C03C21/00 ,  C03B32/02 ,  C03C10/00

CPC classification number: C03C21/002 ,  C03B32/02 ,  C03C10/0027

Abstract: The present invention relates to a chemically strengthened glass having a haze value in terms of a thickness of 0.7 mm of 0.5% or less, having a surface compressive stress value of 400 MPa or more, having a depth of a compressive stress layer of 70 μm or more, having an ST limit of 18000 MPa·μm to 30000 MPa·μm, and being a glass ceramic including at least one of a Li3PO4 crystal and a Li4SiO4 crystal, or including a solid solution crystal of Li3PO4 or Li4SiO4 or a solid solution of both Li3PO4 and Li4SiO4.

公开(公告)号：US20230192531A1

公开(公告)日：2023-06-22

申请号：US18110357

申请日：2023-02-15

Applicant: AGC Inc.

Inventor： Hitomi FURUTA ,  Qing LI ,  Shigeki SAWAMURA ,  Shusaku AKIBA

IPC: C03C3/097 ,  C03C21/00

CPC classification number: C03C3/097 ,  C03C21/002

Abstract: The present invention relates to a chemically strengthened glass having a sheet shape, in which a haze in terms of a thickness of 0.70 mm is 1.0% or less, and on at least one main surface of the glass, a ratio (Rku/Hv)×1000 of kurtosis Rku of surface unevenness to Vickers hardness Hv is 1 or more and 4.4 or less.

公开(公告)号：US20220002183A1

公开(公告)日：2022-01-06

申请号：US17480440

申请日：2021-09-21

Applicant: AGC INC.

Inventor： Yu HANAWA ,  Kazutaka ONO ,  Shigeki SAWAMURA

IPC: C03C3/087 ,  B32B7/06 ,  H01L21/683 ,  B32B17/06 ,  H01L21/78

Abstract: A glass substrate contains, as a glass matrix composition as represented by mole percentage based on oxides, SiO2: 58-75%, Al2O3: 4.5-16%, B2O3: 0-6%, MgO: 0-6%, CaO: 0-6%, SrO: 5-20%, BaO: 5-20%, and MgO+CaO+SrO+BaO:15-40%. The glass substrate has an alkali metal oxide content of 0-0.1% as represented by mole percentage based on oxides. The glass substrate has an average coefficient of thermal expansion α of 56-90 (×10−7/° C.) at 50° C.-350° C.

公开(公告)号：US20190210327A1

公开(公告)日：2019-07-11

申请号：US16355613

申请日：2019-03-15

Applicant: AGC INC.

Inventor： Shigeki SAWAMURA ,  Kazutaka ONO

IPC: B32B17/10 ,  C03C3/087 ,  C03C3/091

CPC classification number: B32B17/10036 ,  B32B17/06 ,  B32B17/101 ,  C03C3/085 ,  C03C3/087 ,  C03C3/091 ,  C03C17/06 ,  H01L23/15

Abstract: A first aspect of the present invention relates to a glass substrate having a content of alkali metal oxides, as represented by molar percentage based on oxides, of 0 to 0.1%, a devitrification-temperature viscosity of 103.2 dPa·s or higher, and an average coefficient of thermal expansion α at 30 to 220° C. of 7.80 to 9.00 (ppm/° C.). A second aspect of the present invention relates to a glass substrate which is to be used for a support substrate for semiconductor packages, the glass substrate having a content of alkali metal oxides, as represented by molar percentage based on oxides, of 0 to 0.1% and a photoelastic constant of 10 to 26 nm/cm/MPa.

公开(公告)号：US20240336515A1

公开(公告)日：2024-10-10

申请号：US18746553

申请日：2024-06-18

Applicant: AGC Inc.

Inventor： Naoki KANNO ,  Shigeki SAWAMURA

IPC: C03C3/21

CPC classification number: C03C3/21

Abstract: Provided is glass having a high refractive index and capable of suppressing the risk of breakage. In glass (10), in mole percentage on an oxide basis, a content of TeO2 is more than 10.1% and less than 40.0%, a parameter A defined by Formula (1) is 65 or more, and a total content of P2O5, TeO2, B2O3, TiO2, Ta2O5, WO3, ZrO2, Bi2O3, and ZnO is 90% or more.

公开(公告)号：US20240278540A1

公开(公告)日：2024-08-22

申请号：US18647083

申请日：2024-04-26

Applicant: AGC Inc.

Inventor： Shigeki SAWAMURA ,  Takato KAJIHARA

IPC: B32B17/10 ,  B60J1/00 ,  C03C3/087 ,  C03C3/091

CPC classification number: B32B17/10119 ,  B32B17/10036 ,  B32B17/101 ,  B32B17/10449 ,  B32B17/10761 ,  B60J1/001 ,  C03C3/087 ,  C03C3/091 ,  B32B2307/536 ,  B32B2307/54 ,  B32B2307/558 ,  B32B2605/08

Abstract: A glass plate including a first surface and a second surface facing the first surface, in which, when Vickers indentation is performed with a force of 5 N on the first surface or the second surface, no cracks are generated or c/l

E
⁢
αΔ
⁢
T





(
1
)

公开(公告)号：US20230331622A1

公开(公告)日：2023-10-19

申请号：US18331239

申请日：2023-06-08

Applicant: AGC Inc.

Inventor： Rikiya KADO ,  Takato KAJIHARA ,  Shigeki SAWAMURA ,  Shusaku AKIBA ,  Yutaka KUROIWA

IPC: C03C3/091 ,  C03C4/16 ,  B32B17/10 ,  C03C23/00

CPC classification number: C03C3/091 ,  C03C4/16 ,  B32B17/10036 ,  C03C23/007 ,  B32B17/10091 ,  B32B17/10119 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2307/204 ,  B32B2307/7376 ,  B32B2605/00 ,  B32B2307/304 ,  B32B2307/412

Abstract: A borosilicate glass includes, in terms of molar percentage based on oxides: 70.0%≤SiO2≤85.0%; 5.0%≤B2O3≤20.0%; 0.0%≤Al2O3≤3.0%; 0.0%≤Li2O≤5.0%; 0.0%≤Na2O≤5.0%; 0.0%≤K2O≤5.0%; 0.0%≤MgO≤5.0%; 0.0%≤CaO≤5.0%; 0.0%≤SrO≤5.0%; 0.0%≤BaO≤5.0%; and 0.06%≤Fe2O3≤1.0%, in which the borosilicate glass has a basicity of 0.485 or more, and [AlO3]/([SiO2]+[B2O3]) of 0.015 or less.

公开(公告)号：US20240293999A1

公开(公告)日：2024-09-05

申请号：US18646873

申请日：2024-04-26

Applicant: AGC Inc.

Inventor： Takato KAJIHARA ,  Shigeki SAWAMURA

IPC: B32B17/10 ,  B32B1/00

CPC classification number: B32B17/10036 ,  B32B1/00 ,  B32B17/10119 ,  B32B17/10449 ,  B32B17/10889 ,  B32B2250/03 ,  B32B2250/40 ,  B32B2309/105 ,  B32B2315/08 ,  B32B2605/08

Abstract: A borosilicate glass includes: in mol % in terms of oxide, 70.0%≤SiO2≤85.0%; 5.0%≤B2O3 ≤20.0%; 0.70%≤Al2O3≤10.0%; 0.0%≤Li2O≤5.0%; 0.0%≤Na2O≤10.0%; 0.0%≤K2O≤5.0%; 0.0%≤MgO≤5.0%; 0.0%≤CaO≤5.0%; 0.0%≤SrO≤5.0%; and 0.10%≤Fe2O3≤1.0%, in which the borosilicate glass has a total amount of SiO2, Al2O3, and B2O3 of 85.0% or more, the borosilicate glass is substantially free of BaO, PbO, and As2O3, and Tb−Ta>0 is satisfied.

公开(公告)号：US20240270626A1

公开(公告)日：2024-08-15

申请号：US18644271

申请日：2024-04-24

Applicant: AGC Inc.

Inventor： Qing LI ,  Yusuke ARAI ,  Akio KOIKE ,  Kazutaka ONO ,  Hitomi FURUTA ,  Shigeki SAWAMURA

IPC: C03C10/00 ,  C03C4/18 ,  C03C21/00 ,  H01L23/15

CPC classification number: C03C10/0027 ,  C03C4/18 ,  C03C21/002 ,  H01L23/15 ,  C03C2204/00

Abstract: A glass sheet, containing, in mass % on an oxide basis: 45-70% of SiO2, 1-15% of Al2O3, 10-25% of Li2O, 0-10% of Na2O, 0-5% of K2O, and 0-15% of ZrO2. K2O/R2O is 0.10 or less and ZrO2/R2O is 0.30 or more, where R2O is a total content of Li2O, Na2O, and K2O. The glass sheet has an average thermal expansion coefficient at 50° C.-350° C. of 90×10−7/° C.-140×10−7/° C. and a Young's modulus of 85 GPa or more.