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    • 1. 发明专利
    • Method of making fine-pitch circuit traces
    • 制造精细电路轨迹的方法
    • JP2011176252A
    • 2011-09-08
    • JP2010067643
    • 2010-03-24
    • Subtron Technology Co Ltd旭▲徳▼科技股▲分▼有限公司
    • WU CHIEN-NANHUANG GUAN-WEI
    • H05K3/06
    • H05K3/06C23F1/02C23F1/14C23F1/44
    • PROBLEM TO BE SOLVED: To provide a method of making fine-pitch circuit traces.
      SOLUTION: A method of making fine-pitch circuit traces includes the steps of: preparing an insulative substrate 10 and disposing a conductive metal layer 20 on the insulative substrate 10; disposing on a whole or a part of a top surface of the conductive metal layer 20, a hetero layer 30 having an etching rate smaller than that of the conductive metal layer 20; continuously forming a mask 40 having a circuit trace pattern on the hetero layer 30 and performing wet etching; and finally removing the mask 40 and the hetero layer 30 so as to form fine-pitch circuit traces having a high etching factor.
      COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供制造精细间距电路迹线的方法。 解决方案:制作精细间距电路迹线的方法包括以下步骤:制备绝缘衬底10并在绝缘衬底10上设置导电金属层20; 设置在导电金属层20的整个或一部分顶表面上,具有蚀刻速率小于导电金属层20的蚀刻速率的异质层30; 在异质层30上连续地形成具有电路迹线图案的掩模40,并执行湿蚀刻; 最后去除掩模40和异质层30,以形成具有高腐蚀因子的细间距电路迹线。 版权所有(C)2011,JPO&INPIT