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    • 2. 发明公开
    • 범프의 형성방법 및 이로부터 형성된 범프를 이용한인쇄회로기판의 제조방법
    • 用于形成BUMP的方法和使用其形成的BUMP来制造印刷电路板的方法
    • KR1020030078449A
    • 2003-10-08
    • KR1020020017504
    • 2002-03-29
    • 삼성전기주식회사
    • 박완혁이병호조영상이양제양덕진
    • H05K3/40
    • H05K3/4007
    • PURPOSE: A method for forming a bump and a method for manufacturing a printed circuit board are provided to allow for a high density degree of freedom of circuit by simultaneously forming the bump and the base brass sheet through a copper plating process. CONSTITUTION: A method for forming a bump(6) comprises the steps of preparing a master tool having an opening for formation of the bump; forming a copper plating layer in such a manner that the bump and the base brass sheet are simultaneously formed by filling the opening through an electric copper plating process; and separating the bump and the base brass sheet from the master tool. The master tool includes a base metal layer; a soft metal layer plated on the base metal layer, and which has the opening; and a release metal layer plated on the layer where the opening is formed.
    • 目的:提供一种用于形成凸块的方法和印刷电路板的制造方法,以通过铜电镀工艺同时形成凸块和基底黄铜片来实现电路的高密度自由度。 构成:用于形成凸起(6)的方法包括准备具有用于形成凸块的开口的主工具的步骤; 以通过电镀铜工艺填充开口同时形成凸块和基底黄铜片的方式形成铜镀层; 并将凸起和基底黄铜片与主工具分开。 主工具包括贱金属层; 镀在基底金属层上的软金属层,其具有开口; 以及镀在形成开口的层上的剥离金属层。