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    • 9. 发明授权
    • Printed wiring board
    • 印刷电路板
    • US07800917B2
    • 2010-09-21
    • US11491604
    • 2006-07-24
    • Hiroshi ShimadaShigeru MichiwakiKazuo Shishime
    • Hiroshi ShimadaShigeru MichiwakiKazuo Shishime
    • H05K1/11H05K1/14
    • H05K3/4661H05K3/387H05K2201/0209H05K2201/0212H05K2201/09518H05K2203/0773H05K2203/0789H05K2203/0796H05K2203/1152
    • A printed wiring board has a first wiring layer formed at least on one surface of an insulative substrate, an insulating layer formed as covering the first wiring layer, and a second wiring layer formed on the insulating layer. The insulating layer is formed of a cured insulative sheet made of a high-stiff sheet-type reinforcing material containing resin. The first and second wiring layers are electrically connected to each other through at least one hole having a bottom. The second wiring layer is united with the insulating layer at an interface thereof with a conductive material of the second wiring layer injected into concave sections provided on the interface. Another printed wiring board has an insulative substrate having a first surface and a second surface, a first insulating layer and a second insulating layer formed on the first surface and the second surface, respectively, and a first wiring layer formed on the first insulating layer and a second wiring layer formed on the second insulating layer. The first and second wiring layers are electrically connected to each other via at least one through hole. The first wiring layer is united with the first insulating layer at an interface thereof with a conductive material of the first wiring layer injected into concave sections provided on the interface. The second wiring layer is united with the second insulating layer at an interface thereof with a conductive material of the first wiring layer injected into concave sections provided on the interface.
    • 印刷布线板具有形成在绝缘基板的至少一个表面上的第一布线层,形成为覆盖第一布线层的绝缘层和形成在绝缘层上的第二布线层。 绝缘层由包含树脂的高刚性片状增强材料制成的固化绝缘片形成。 第一和第二布线层通过具有底部的至少一个孔彼此电连接。 第二布线层与绝缘层在其界面处与注入到设置在界面上的凹部中的第二布线层的导电材料相结合。 另一种印刷电路板具有分别具有第一表面和第二表面的绝缘基板,分别形成在第一表面和第二表面上的第一绝缘层和第二绝缘层,以及形成在第一绝缘层上的第一布线层和 形成在第二绝缘层上的第二布线层。 第一和第二布线层经由至少一个通孔彼此电连接。 第一布线层与第一绝缘层在其界面处与注入到设置在界面上的凹部中的第一布线层的导电材料结合。 第二布线层与第二绝缘层的界面处与第一布线层的导电材料的界面结合,注入到设置在界面上的凹部中。