| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a printed-wiring board that does not increase the number of layers of the printed-wiring boards, does not become complex wiring, and can be connected easily while a grid-array-type package is packaged on the printed-wiring board. SOLUTION: In the printed-wiring board where a multi-terminal element where a number of terminals are arranged in a matrix is packaged, a number of lands that are divided into a plurality of blocks while each terminal of the multi-terminal element is provided in a matrix at a first layer so that it can be connected correspondingly, a signal line pattern that is connected to a number of lands and is withdrawn in the same direction for each block, and a signal line pattern from the land that is located at the innermost row of a number of lands are provided via a first signal connection hole, a signal line, and a second signal connection hole, thus regularly withdrawing the wiring pattern of the signal line from a number of lands in a matrix being provided on the packaging surface of the grid-array-type package.</p> |
