Glass substrate and glass substrate for high frequency device

    公开(公告)号:US10264672B2

    公开(公告)日:2019-04-16

    申请号:US15962076

    申请日:2018-04-25

    申请人: AGC Inc.

    IPC分类号: H01B17/56 H05K1/03 H05K1/11

    摘要: 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.

    Substrate and metal laminate
    2.
    发明授权

    公开(公告)号:US12012498B2

    公开(公告)日:2024-06-18

    申请号:US17580798

    申请日:2022-01-21

    申请人: AGC Inc.

    IPC分类号: C08K3/36 C08J5/18

    CPC分类号: C08K3/36 C08J5/18 C08J2327/18

    摘要: A substrate with a tetrafluoroethylene polymer and an inorganic filler, wherein the proportion of the total volume of the tetrafluoroethylene polymer and the inorganic filler to the total volume of the present substrate is at least 80 vol %, and the substrate has a rate of change in dielectric loss tangent at 10 GHz before and after 72 hours of unsaturated pressure cooker test at 120° C. under 85% RH on a 127-μm thick specimen cut out from the substrate is at most 30%.

    Antenna
    6.
    发明授权
    Antenna 有权

    公开(公告)号:US11894625B2

    公开(公告)日:2024-02-06

    申请号:US17643232

    申请日:2021-12-08

    申请人: AGC Inc.

    IPC分类号: H01Q9/16 H01Q7/00 H05K1/02

    摘要: An antenna includes an antenna conductor to be provided on an exterior side of a chassis and a flexible substrate. The flexible substrate includes a first insulating portion that is a portion of a sheet-shaped dielectric where the sheet-shaped dielectric is folded, a grounding conductor provided between the first insulating portion and the chassis, a second insulating portion that is a portion of the sheet-shaped dielectric where the sheet-shaped dielectric is not folded, and a signal line configured to feed power to the antenna conductor. A thickness of the first insulating portion is greater than a thickness of the second insulating portion.

    Glass substrate
    7.
    发明授权

    公开(公告)号:US10531566B2

    公开(公告)日:2020-01-07

    申请号:US16030216

    申请日:2018-07-09

    申请人: AGC Inc.

    摘要: A glass substrate includes a first surface and a second surface that are opposite to each other. Multiple through holes pierce through the glass substrate from the first surface to the second surface. Each of five through holes randomly selected from the multiple through holes includes a first opening at the first surface and a second opening at the second surface. The approximate circle of the first opening has a diameter greater than a diameter of the approximate circle of the second opening. The first opening has a roundness of 5 μm or less. Perpendicularity expressed by P=tc/t0 ranges from 1.00000 to 1.00015, where P is the perpendicularity, tc is the distance between the center of the approximate circle of the first opening and the center of the approximate circle of the second opening, and t0 is the thickness of the glass substrate.

    Manufacturing method for glass substrate, method for forming hole in glass substrate, and apparatus for forming hole in glass substrate

    公开(公告)号:US11123822B2

    公开(公告)日:2021-09-21

    申请号:US15472636

    申请日:2017-03-29

    申请人: AGC Inc.

    发明人: Motoshi Ono

    摘要: A manufacturing method for a glass substrate having a hole with a depth of d (μm) or more includes irradiating the glass substrate with a laser beam emitted from a CO2 laser oscillator for an irradiation time t (μsec), to form a hole in the glass substrate. The laser beam is delivered to the glass substrate after being condensed at a focusing lens. A power density Pd (W/cm2), defined by Pd=P0/S where P0 and S are a power and a beam cross-sectional area of the laser beam just prior to entering the focusing lens, respectively, is 600 W/cm2 or less. The irradiation time t (μsec) satisfies t≥10×d/(Pd)1/2.

    Manufacturing method of glass substrate with hole

    公开(公告)号:US10584053B2

    公开(公告)日:2020-03-10

    申请号:US15666946

    申请日:2017-08-02

    申请人: AGC Inc.

    发明人: Motoshi Ono

    摘要: A manufacturing method of a glass substrate with a hole having a diameter ϕf, and with a thickness θf includes setting a thickness θ1 of a glass plate that is to be processed; preparing a glass plate with the thickness θ1, having first and second surfaces opposite to each other; forming one initial characteristic object or two or more initial characteristic objects in the glass plate by irradiating the glass plate with a laser from a side of the first surface of the glass plate, the initial characteristic object having a size of a diameter ϕ1 on the first surface; and performing wet etching for the glass plate having the initial characteristic object, so that from the initial characteristic object a hole having the diameter ϕf on the first surface is formed, and a thickness of the glass plate is adjusted from θ1 to a target value of θf.