COPPER-CLAD LAMINATED PLATE, RESIN-CLAD COPPER FOIL, AND CIRCUIT SUBSTRATE USING SAID PLATE AND FOIL

    公开(公告)号:US20220220272A1

    公开(公告)日:2022-07-14

    申请号:US17609695

    申请日:2020-05-14

    Abstract: A copper clad laminate includes: an insulating layer containing a cured product of a resin composition; and a surface treated copper foil on one surface or both surfaces of the insulating layer, the resin composition containing a polymer, and the surface treated copper foil including a finely roughened particle treatment layer of copper on at least one surface side of a copper foil, the finely roughened particle treatment layer being formed of fine copper particles having a particle size of 40 to 200 nm, a heat resistance treatment layer containing nickel provided on the finely roughened particle treatment layer, a rust prevention treatment layer containing at least chromium provided on the heat resistance treatment layer, a silane coupling agent layer provided on the rust prevention treatment layer, and an amount of nickel attached in the heat resistance treatment layer being 30 to 60 mg/m2.

    PREPREG, METAL-CLAD LAMINATE, AND WIRING BOARD

    公开(公告)号:US20220159830A1

    公开(公告)日:2022-05-19

    申请号:US17440528

    申请日:2020-03-26

    Abstract: A prepreg includes: a resin composition or a semi-cured product thereof; and a fibrous base material, wherein the resin composition contains a polymer having a structural unit expressed by the formula (1) in a molecule, and a curing agent each at a predetermined content rate. A cured product of the resin composition has a Dk of 2.6 to 3.8, and the fibrous base material includes a glass cloth having a Dk of 4.7 or less and a Df of 0.0033 or less. A cured product of the prepreg has a Dk of 2.7 to 3.8, and a Df of 0.002 or less. In the formula (1), Z represents an arylene group, R1 to R3 each independently represents a hydrogen atom or an alkyl group, and R4 to R6 each independently represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms.

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