WIRING BOARD, WIRING BOARD ASSEMBLY, AND METHOD OF MANUFACTURING THE WIRING BOARD AND THE WIRING BOARD ASSEMBLY

摘要

PROBLEM TO BE SOLVED: To provide a wiring board and an assembly of the wiring board, capable of suppressing electrical connection of a conductor overflowing from a via hole and wiring around the via hole without increasing the size of a land. SOLUTION: The wiring board includes a groove 6 formed to capture a conductor overflowing to the periphery of the via hole 4 when filling the conductor and to surround the via hole 4 within a range of a land 5. The groove 6 is formed to surround the via hole 4, thus capturing the conductor by the groove 6 and suppressing spread to the outside of the groove even if the conductor overflows in filling of the conductor into the via hole when conductive paste, namely a conductor, is pushed into the via hole 4. COPYRIGHT: (C)2011,JPO&INPIT