| 摘要 |
一种线路与绝缘体表面接合的电路板，令线路与绝缘体接合的下表面，最少有一部分是位于绝缘体的开孔内，使线路的下表面至少一部分是裸露于大气中供电连接用，其中，由于线路的凹洞位于下表面，并令凹洞的底部实施为线路的第二下表面，使线路得具有第二下表面及侧边，据此，使线路与导电物质得以藉侧边而增加接合的面积，进而提升线路与导电物质接合强度，就可防止导电物质自线路剥离的问题，而能提升电路板的品质及实用性。; wherein due to the recess on the lower surface of trace, said recess having a bottom which is employed as the second lower surface of trace, then said trace having a second lower surface and a side edge, then, By means of both said side edge and said recess, it allows the surfaces of said trace contacted with conductive material(s) enables to be increased, then said trace coupled with said conductive material becomes more securely, and then it can prevent said trace from peeling off said conductive material, as this result, the reliability of said PCB can be enhanced; and furthermore, it is more convenient for said PCB to be used in the electronic industries. |
