| 摘要 |
PURPOSE: A printed circuit board being enable to a test embedded electric element is provided to perform embedded electrical component by including a reference pad for inspecting high frequency. CONSTITUTION: A printed circuit board(10) comprises electrical device components(11a,11b), a reference pad(13) for inspecting high frequency, and a signal pad(12). The electrical device component is built in the printed circuit board. The signal pad is connected to the I/O terminal of the electrical device component. The signal pad is connected with an inspection signal transmission line of a high frequency test probe. The reference pad for inspecting high frequency is connected to the connection line of the ground line of the high frequency test probe.
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