| 摘要 |
The invention realizes preferential routing of wires. A semiconductor device includes leads, a plurality of semiconductor chips stacked in layers, first wires that electrically connect a first semiconductor chip among the plurality of semiconductor chips to the leads, second wires that electrically connect a second semiconductor chip stacked on the first semiconductor chip among the plurality of semiconductor chips to the leads, and first and second bent sections formed in the second wires, each having a curvature greater than other parts thereof. The second wires extend toward the first bent section above the leads, upwardly diagonally extend from the first bent section toward the second semiconductor chip, and downwardly extend from the second bent section to electrically connect to the second semiconductor chip.
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