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    • 73. 发明公开
    • 프린트 기판의 레이저 가공 방법
    • 印刷电路板激光加工方法
    • KR1020080052394A
    • 2008-06-11
    • KR1020070122838
    • 2007-11-29
    • 비아 메카닉스 가부시키가이샤
    • 오마에고이치아오야마히로시가나야야스히코
    • H05K3/14
    • H05K3/465B23K26/364B23K26/389H05K3/0032H05K3/0035H05K3/107H05K2203/0557H05K2203/108
    • A laser machining method for a printed circuit board is provided to improve machining efficiency without a smear on a bottom of a hole by irradiating an excimer laser after machining the hole through Co2 laser. A laser machining method for a printed circuit board includes the steps of: forming a hole(5a) with a predetermined depth from a surface(2a) of the printed circuit board by irradiating a first laser to a first position of the printed circuit board with an insulating layer(2) on the surface; additionally forming a hole(5) from the insulating layer of the surface to a conductor layer(3) of an inner layer in the first position by irradiating a second laser to the first position and a second position of the printed circuit board and forming a groove(6) in the second position, wherein the groove has a depth not to reach the conductor layer of the inner layer; and forming a conductor pattern by filling conductive material in the hole and the groove.
    • 提供一种用于印刷电路板的激光加工方法,通过在通过Co2激光加工孔之后照射准分子激光器来提高加工效率,而不会在孔底部产生污迹。 一种用于印刷电路板的激光加工方法包括以下步骤:通过将第一激光照射到印刷电路板的第一位置,从印刷电路板的表面(2a)形成具有预定深度的孔(5a) 表面上的绝缘层(2); 另外通过将第二激光照射到印刷电路板的第一位置和第二位置,并且在印刷电路板的第二位置上形成从表面的绝缘层到内层的导体层(3)的孔(5) 槽(6)处于第二位置,其中所述槽具有不能到达所述内层的导体层的深度; 以及通过在孔和槽中填充导电材料来形成导体图案。