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发明公开
CN101730398A 印刷电路板及其制作方法 无效 - 撤回

印刷电路板及其制作方法
摘要：
一种印刷电路板，包括层叠设置的一信号层、一绝缘层及一参考层，所述信号层上设有一传输线，所述传输线上设有一测试点，所述参考层上对应于所述测试点的位置处设有一开槽，所述开槽于对应所述测试点的位置处设有一连接开槽两侧参考层的连接线。上述印刷电路板利用所述开槽及连接线来降低信号在传输过程中由所述测试点引起的电容效应。
摘要（英）：

The invention relates to a printed circuit board and a method for producing same. The printed circuit board comprises a signal layer, an insulating layer and a reference layer which are arranged in a stacking way. The signal layer is provided with a transmission line, and the transmission line is provided with a test point. The reference layer is provided with a groove in a position which corresponds to the test point, and the groove is provided with a connecting line which connects the reference layer on two sides of the groove in a position which corresponds to the test point. The printed circuit board uses the groove and the connecting line to reduce the capacitance effect resulted from the test point in the signal transmission process.

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