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    HDD suspension and its manufacture
    3.
    发明申请
    HDD suspension and its manufacture 审中-公开
    硬盘悬挂及其制造

    公开(公告)号：US20060073316A1

    公开(公告)日：2006-04-06

    申请号：US11253564

    申请日：2005-10-20

    申请人： Kazuto Okamura ,  Kazutoshi Taguchi ,  Kazunori Ohmizo ,  Makoto Shimose ,  Katsuya Sakayori ,  Terutoshi Momose ,  Tomoko Togashi ,  Michiaki Uchiyama ,  Shigeki Kawano

    发明人： Kazuto Okamura ,  Kazutoshi Taguchi ,  Kazunori Ohmizo ,  Makoto Shimose ,  Katsuya Sakayori ,  Terutoshi Momose ,  Tomoko Togashi ,  Michiaki Uchiyama ,  Shigeki Kawano

    IPC分类号： B32B3/00

    CPC分类号： G11B5/4853 ,  C08G73/1042 ,  H05K1/056 ,  H05K3/002 ,  Y10T428/24917 ,  Y10T428/31721

    摘要： This invention relates to an HDD suspension and a process for its manufacture with high productivity and reliability. The HDD suspension of this invention is manufactured from a laminate composed of a stainless steel substrate, an insulating resin layer and a metal foil by wet-etching the laminate by the use of a basic fluid. The insulating layer of the laminate is composed of plural layers of polyimide, every constituent layer exhibits a mean etching rate of 0.5 μM/min or more by a 50 wt % aqueous solution of KOH at 80° C., the layers in contact with the stainless steel substrate and the metal foil are those of polyimide (B) exhibiting a glass transition temperature of 300° C. or less and the adhesive strength between the layer of polyimide (B) and either the stainless steel substrate or the metal foil is 0.5 kN/m or more.

    摘要翻译： 本发明涉及一种具有高生产率和可靠性的HDD悬架及其制造方法。 本发明的HDD悬架通过使用碱性流体湿法蚀刻层压体由由不锈钢基板，绝缘树脂层和金属箔组成的叠层制造。 层叠体的绝缘层由多层聚酰亚胺构成，各构成层通过在80℃下的50重量％的KOH水溶液表现出0.5μmM/ min以上的平均蚀刻速度，与 不锈钢基材和金属箔是玻璃化转变温度为300℃以下的聚酰亚胺（B），并且聚酰亚胺（B）与不锈钢基材或金属箔之间的粘合强度为0.5 kN / m以上。

    Laminate and process for producing the same
    5.
    发明授权
    Laminate and process for producing the same 失效
    层压板及其制造方法

    公开(公告)号：US07338716B2

    公开(公告)日：2008-03-04

    申请号：US10467463

    申请日：2002-02-25

    申请人： Kazuto Okamura ,  Kazutoshi Taguchi ,  Kazunori Ohmizo ,  Makoto Shimose

    发明人： Kazuto Okamura ,  Kazutoshi Taguchi ,  Kazunori Ohmizo ,  Makoto Shimose

    IPC分类号： B32B9/00

    CPC分类号： B32B15/08 ,  B32B27/06 ,  B32B27/18 ,  B32B27/36 ,  H05K1/0346 ,  H05K1/036 ,  H05K3/002 ,  H05K2201/0355 ,  H05K2201/068 ,  H05K2203/0759 ,  Y10T428/24917 ,  Y10T428/24942 ,  Y10T428/2495 ,  Y10T428/24959 ,  Y10T428/31681 ,  Y10T428/31721

    摘要： This invention relates to a laminate comprising an insulating polyimide resin layer etchable by an aqueous alkaline solution and a metal foil. The laminate has an insulating resin layer composed of a plurality of polyimide resin layers on the metal foil and the insulating resin layer has at least one polyimide resin layer (A) with a coefficient of linear thermal expansion (CTE) of 30×10−6/° C. or less and at least one polyimide resin layer (B) with a glass transition temperature (Tg) of 300° C. or below, the layer in contact with the metal foil is the polyimide resin layer (B), the bonding strength between the metal foil and the polyimide resin layer (B) in contact therewith is 0.5 kN/m or more, and the average rate of etching of the insulating resin layer by a 50 wt % aqueous solution of potassium hydroxide at 80° C. is 0.5 μm/min or more. The laminate is useful for flexible printed circuits and the like.

    摘要翻译： 本发明涉及包含可由碱性水溶液和金属箔蚀刻的绝缘聚酰亚胺树脂层的层压体。 层压体具有在金属箔上由多个聚酰亚胺树脂层构成的绝缘树脂层，绝缘树脂层具有至少一个线性热膨胀系数（CTE）为30×10 -6的聚酰亚胺树脂层（A） 6℃以下的玻璃化转变温度（Tg）为300℃以下的至少一个聚酰亚胺树脂层（B），与金属箔接触的层为聚酰亚胺树脂层 （B）中，金属箔与其接触的聚酰亚胺树脂层（B）的接合强度为0.5kN / m以上，通过50重量％的钾水溶液对绝缘树脂层的平均蚀刻速度 在80℃下的氢氧化物为0.5m / min以上。 该层压板可用于柔性印刷电路等。

    Laminate for HDD Suspension With the use of Thin Copper Foil and Method for Manufacturing the same
    6.
    发明申请
    Laminate for HDD Suspension With the use of Thin Copper Foil and Method for Manufacturing the same 审中-公开
    使用薄铜箔和制造方法制造HDD悬挂的层压板

    公开(公告)号：US20060037674A1

    公开(公告)日：2006-02-23

    申请号：US10534249

    申请日：2003-11-25

    申请人： Kazuto Okamura ,  Kazunori Ohmizo ,  Takaki Suzuki

    发明人： Kazuto Okamura ,  Kazunori Ohmizo ,  Takaki Suzuki

    IPC分类号： B32B15/08 ,  C21D1/70

    CPC分类号： G11B5/486 ,  H05K1/056 ,  Y10T428/31681

    摘要： The invention relates to a substrate for HDD suspension. A laminate for HDD suspension comprises a stainless steel layer, a polyimide resin layer, and a conductor layer. The conductor layer is composed of a copper or copper alloy foil having a thickness of 14 μm or less, a tensile strength of 400 MPa, and a conductance of 65% or more. A suspension formed of such a laminate facilitates the control of the flying height of the slider of the suspension essential to great progress of the technology for higher capacity of HDDs, facilitates the impedance control improves the tension rate, reduces the loss of electric signal, facilitates machining of the shape of the flying lead, and provides durability.

    摘要翻译： 本发明涉及一种用于HDD悬挂的基板。 用于HDD悬挂的层压板包括不锈钢层，聚酰亚胺树脂层和导体层。 导体层由厚度为14μm以下，拉伸强度为400MPa，电导率为65％以上的铜或铜合金箔构成。 由这种层压板形成的悬架有助于控制悬架的滑块的飞行高度，这对于更高容量的HDD的技术来说是非常大的进步，便于阻抗控制提高张力，减少电信号的损失，便于 加工飞铅的形状，并提供耐用性。

    Laminate and process for producing the same
    7.
    发明授权
    Laminate and process for producing the same 有权
    层压板及其制造方法

    公开(公告)号：US06998455B1

    公开(公告)日：2006-02-14

    申请号：US10110316

    申请日：2000-10-20

    申请人： Takuhei Ohta ,  Katsufumi Hiraishi ,  Makoto Shimose ,  Kazuto Okamura ,  Naoya Okabayashi ,  Kazunori Oomizo

    发明人： Takuhei Ohta ,  Katsufumi Hiraishi ,  Makoto Shimose ,  Kazuto Okamura ,  Naoya Okabayashi ,  Kazunori Oomizo

    IPC分类号： C08F122/40

    CPC分类号： C08G73/10 ,  H05K1/0346 ,  H05K1/056

    摘要： This invention relates to a laminate which changes in dimension to such a small extent as not to cause curling and warpage when the ambient humidity changes and is useful for flexible printed wiring boards. The laminate possesses a polyimide layer or layers of polyimides formed on a conductor by coating and at least one of the polyimide layers is composed of polyimide of low hygroscopic expansion obtained by the reaction of diamines containing 20 mol % or more of 4,4′-diamino-2,2′-dimethylbiphenyl with a tetracarboxylic acid compound and exhibiting a coefficient of linear hygroscopic expansion of 15×10−6/% RH or less.

    摘要翻译： 本发明涉及一种层叠体，其尺寸变化到如此小的程度，当环境湿度变化时不会引起卷曲和翘曲，并且可用于柔性印刷线路板。 层压体具有通过涂布在导体上形成的聚酰亚胺层或聚酰亚胺层，并且至少一个聚酰亚胺层由通过使含有20摩尔％以上的4,4'-二羧酸的二胺反应获得的低吸湿膨胀性的聚酰亚胺构成， 二氨基-2,2'-二甲基联苯与四羧酸化合物，线性吸湿膨胀系数为15×10 -6 /％RH以下。