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    GLASS SUBSTRATE AND LAMINATED SUBSTRATE
    31.
    发明申请
    GLASS SUBSTRATE AND LAMINATED SUBSTRATE 审中-公开

    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.

    ALKALI-FREE GLASS SUBSTRATE, LAMINATED SUBSTRATE, AND GLASS SUBSTRATE PRODUCTION METHOD
    32.
    发明申请
    ALKALI-FREE GLASS SUBSTRATE, LAMINATED SUBSTRATE, AND GLASS SUBSTRATE PRODUCTION METHOD 审中-公开

    公开(公告)号：US20190161388A1

    公开(公告)日：2019-05-30

    申请号：US16264734

    申请日：2019-02-01

    Applicant: AGC INC.

    Inventor： Shuhei NOMURA ,  Kazutaka ONO

    IPC: C03C3/093 ,  B32B17/00 ,  C03C3/091

    Abstract: An alkali-free glass substrate which is a glass substrate includes, as represented by molar percentage based on oxides, 0.1% to 10% of ZnO. The alkali-free glass substrate has an average coefficient of thermal expansion α50/100 at 50 to 100° C. of from 2.70 ppm/° C. to 3.20 ppm/° C., an average coefficient of thermal expansion α200/300 at 200 to 300° C. of from 3.45 ppm/° C. to 3.95 ppm/° C., and a value α200/300/α50/100 obtained by dividing the average coefficient of thermal expansion α200/300 at 200 to 300° C. by the average coefficient of thermal expansion α50/100 at 50 to 100° C. of from 1.20 to 1.30.

    ALKALI-FREE GLASS
    34.
    发明公开
    ALKALI-FREE GLASS 审中-公开

    公开(公告)号：US20240140855A1

    公开(公告)日：2024-05-02

    申请号：US18403771

    申请日：2024-01-04

    Applicant: AGC Inc.

    Inventor： Hirofumi TOKUNAGA ,  Kazutaka ONO

    IPC: C03C3/087 ,  C03C3/091

    CPC classification number: C03C3/087 ,  C03C3/091 ,  C03C2201/10 ,  C03C2203/10

    Abstract: An alkali free glass having an average coefficient of thermal expansion at 50 to 350° C. of 30×10−7 to 43×10−7/° C., a strain point of 650 to 725° C., a temperature T4 at which a viscosity reaches 104 dPa·s of 1,290° C. or lower, and a temperature T2 at which the viscosity reaches 102 dPa·s of 1,680° C. or lower, and including, as represented by mol % based on oxides: 62 to 67% of SiO2, 8 to 13% of MgO, 6 to 12% of CaO, 0.5 to 4% of SrO, and 0 to 0.5% of BaO, wherein MgO+CaO+SrO+BaO is 18 to 22%, and MgO/CaO is 0.8 or more, and the alkali free glass has a value expressed by the following Expression (I) of 4.6 or less:


    (7.87[A2O3]-8.5[B2O3]+11.35[MgO]+7.09[CaO]+5.52[SrO]−1.45[BaO])/[SiO2]   Expression (I).

    LIQUID CRYSTAL DISPLAY PANEL
    36.
    发明申请
    LIQUID CRYSTAL DISPLAY PANEL 有权

    公开(公告)号：US20230140716A1

    公开(公告)日：2023-05-04

    申请号：US18147787

    申请日：2022-12-29

    Applicant: AGC Inc.

    Inventor： Kazutaka ONO ,  Yasumasa KATO ,  Masaya KUNIGITA

    IPC: G02F1/1362 ,  C03C3/091 ,  C03C17/36 ,  G02F1/1333 ,  G02F1/1343

    Abstract: The present invention relates to a liquid crystal display panel having a predetermined size, containing a wiring film formed of a metal, an insulating film containing an inorganic substance and a substrate formed of a non-alkali glass, in which the metal has the product of a Young's modulus (E) and a thermal expansion coefficient (α) at room temperature falling within a predetermined range, α of the inorganic substance is smaller than that of the non-alkali glass, the non-alkali glass has E of from 70 GPa to 95 GPa and a of from 32×10−7 to 45×10−7 (1/° C.) in which E and α satisfies a predetermined formula, and has a predetermined composition.

    GLASS SUBSTRATE, LIQUID CRYSTAL ANTENNA AND HIGH-FREQUENCY DEVICE
    37.
    发明申请
    GLASS SUBSTRATE, LIQUID CRYSTAL ANTENNA AND HIGH-FREQUENCY DEVICE 有权

    公开(公告)号：US20220102850A1

    公开(公告)日：2022-03-31

    申请号：US17550080

    申请日：2021-12-14

    Applicant: AGC Inc.

    Inventor： Shuhei NOMURA ,  Kazutaka ONO

    IPC: H01Q1/38 ,  H01Q1/22 ,  H01Q9/04 ,  H01Q15/00

    Abstract: Provided is a glass substrate with which it is possible to reduce dielectric loss in high-frequency signals, and which also has excellent thermal shock resistance. This invention satisfies the relation {Young's modulus (GPa)×average thermal expansion coefficient (ppm/° C.) at 50-350° C.}≤300 (GPa·ppm/° C.), wherein the relative dielectric constant at 20° C. and 35 GHz does not exceed 10, and the dielectric dissipation factor at 20° C. and 35 GHz does not exceed 0.006.

    ALKALI-FREE GLASS AND GLASS PLATE
    38.
    发明申请
    ALKALI-FREE GLASS AND GLASS PLATE 有权

    公开(公告)号：US20220024805A1

    公开(公告)日：2022-01-27

    申请号：US17492941

    申请日：2021-10-04

    Applicant: AGC Inc.

    Inventor： Yusaku MATSUO ,  Kazutaka ONO

    IPC: C03C3/093

    Abstract: An alkali-free glass includes, as represented by mole percentage based on oxides, SiO2: 57 to 70%, Al2O3: 5 to 15%, B2O3: 15 to 24%, MgO: 0.2 to 10%, CaO: 0.1 to 7%, SrO: 0.1 to 2.5%, BaO: 0 to 10%, and ZnO: 0 to 0.1%, or includes, as represented by mole percentage based on oxides, SiO2: 57 to 70%, Al2O3: 5 to 15%, B2O3: 15 to 24%, MgO: 0.1 to 10%, CaO: 0.1 to 10%, SrO: 0.1 to 10%, BaO: 0.1 to 10%, and ZnO: 0 to 0.1%. Formula (A) is [Al2O3]/[B2O3], and a value of the formula (A) is larger than 0.35 and 1.4 or smaller.

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