| 摘要 |
A head stack assembly (HSA) including a swing arm including a core pivotably coupled to a base of a hard disk drive apparatus (HDD) and at least one arm blade extending horizontally from the core, a suspension extending from a front end of the arm blade, a head slider mounted on a front end of the suspension, a blade extension portion provided at a side of the swing arm in a width direction of the swing arm, the blade extension portion being an extension of the arm blade toward the core to avoid interfering with a disk of the HDD, and a rigidity weakening portion provided at the other side of the swing arm in the width direction, the rigidity weakening portion having a thickness less than that of the arm blade so as to alleviate an inconsistency of the rigidity of the arm blade in a width direction of the arm blade caused by the blade extension portion.
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