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    • 62. 发明授权
    • Polyimide film and use thereof
    • 聚酰亚胺膜及其用途
    • US08338560B2
    • 2012-12-25
    • US11918558
    • 2006-04-25
    • Hisayasu KaneshiroTakashi Kikuchi
    • Hisayasu KaneshiroTakashi Kikuchi
    • C08G73/00B32B7/12B32B15/08
    • H05K1/0346B32B15/08C08G73/1071C08L79/08C09J7/22C09J7/25C09J7/35C09J2201/61C09J2479/08C09J2479/086H05K3/022H05K3/386H05K2201/0154Y10T428/2826Y10T428/31681
    • The present invention provides a polyimide film and its usage. The polyimide film according to the present invention does not cause dimensional change due to thermal stress. The present invention particularly relates to a polyimide film and its usage, which polyimide film has a characteristic of suppressing thermal deformation of the material in lamination of a polyimide film and a metal layer by a laminate method. The polyimide film according to the present invention has the following characteristics: (1) an inflexion point of storage modulus ranges from 270° C. to 340° C.; (2) tan δ, which is a value obtained by dividing a loss elastic modulus by a storage modulus, has a peak-top in a range of 320° C. to 410° C.; (3) a storage modulus at 380° C. ranges from 0.4 GPa to 2.0 GPa; and (4) a storage modulus α1 at the inflexion point (GPa) and a storage modulus α2 at 380° C. (GPa) satisfy: 85≧{(α1−α2)/α1}×100≧65. With these characteristics, the polyimide film gives an effect of suppressing thermal deformation of the material in lamination of a polyimide film and a metal layer by a laminate method.
    • 本发明提供一种聚酰亚胺薄膜及其用途。 根据本发明的聚酰亚胺膜不会由于热应力而引起尺寸变化。 本发明特别涉及一种聚酰亚胺薄膜及其用途,该聚酰亚胺薄膜具有通过层叠方法抑制层叠聚酰亚胺薄膜和金属层的材料的热变形的特性。 本发明的聚酰亚胺薄膜具有以下特征:(1)储能模量的拐点为270℃〜340℃。 (2)作为通过将损失弹性模量除以储能模量而获得的值的tanδ在320℃〜410℃的范围内具有峰顶。 (3)380℃下的储能模量为0.4GPa至2.0GPa; (4)在拐点处的储能模量α1(GPa)和380℃下的储能模量α2(GPa)满足:85≥{(α1-α2)/α1}×100≥65。 通过这些特性,聚酰亚胺膜具有通过层叠法抑制层叠聚酰亚胺膜和金属层的材料的热变形的效果。
    • 63. 发明授权
    • Adhesive sheet and copper-clad laminate
    • 粘合片和覆铜层压板
    • US08298366B2
    • 2012-10-30
    • US13221358
    • 2011-08-30
    • Hisayasu KaneshiroTakashi Kikuchi
    • Hisayasu KaneshiroTakashi Kikuchi
    • B32B37/00B29C65/00
    • H05K1/0346C09J7/25C09J2479/086H05K1/0393H05K3/386H05K2201/0154H05K2201/068Y10T428/2852Y10T428/31678
    • Disclosed is an adhesive film having high dimensional stability which can be suitably used for two layer FPCs. Specifically, disclosed is an adhesive sheet composed of an insulating layer and an adhesive layer arranged on one side or both sides of the insulating layer. This adhesive sheet is characterized in that the insulating layer has a ratio E′2/E′1 between the storage elasticity modulus E′1 at 25° C. and the storage elasticity modulus E′2 at 380° C. of not more than 0.2 and a coefficient of thermal expansion in the MD direction of 5-15 ppm at 100-200° C. It is further characterized in that the change in the coefficient of thermal expansion of the adhesive sheet at 100-250° C. after heat treatment at 380° C. for 30 seconds under tension of 20 kg/m is not more than 2.5 ppm in the tension direction and not more than 10 ppm in the direction perpendicular to the tension direction.
    • 公开了一种具有高尺寸稳定性的粘合膜,其可以适用于两层FPC。 具体地,公开了由绝缘层和布置在绝缘层的一侧或两侧上的粘合层构成的粘合片。 该粘合片的特征在于绝缘层在25℃下的储能弹性模量E'1与380℃下的储能弹性模量E'2之间的比率E'2 / E'1不大于 0.2,在100〜200℃下MD方向的热膨胀系数为5〜15ppm。其特征还在于,热处理后的粘合片的热膨胀系数在100〜250℃的变化 在拉伸方向下,在380℃,30秒的张力下处理30分钟,在拉伸方向垂直的方向为不大于10ppm。