Patent ID: 11929103
Assignee: TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 4:
5. A disk device comprising:
a magnetic disk;
a magnetic head configured to read and write information from and to the magnetic disk;
a flexible printed circuit board electrically connected to the magnetic head;
an electronic component mounted on the flexible printed circuit board; and
a wall having rigidity higher than the flexible printed circuit board and attached to the flexible printed circuit board, wherein
the flexible printed circuit board with a first through hole includes
a first surface facing the electronic component with a gap, and
a second surface opposite the first surface and facing the wall, the first through hole being open to the first surface and the second surface to communicate with the gap,

the wall is provided with a second through hole penetrating the wall to communicate with the first through hole,
the flexible printed circuit board includes a first terminal,
the electronic component includes a case provided with a second terminal, the second terminal electrically connected to the first terminal through solder,
the gap lies between the first surface and the case,
the flexible printed circuit board includes
a first layer having the first surface,
a second layer covering the first surface, and
a third layer having conductive property and located between the first layer and the second layer, the third layer including the first terminal, and

the second layer is provided with a third through hole penetrating the second layer,
the third through hole includes
an exposure part that exposes the first surface, the first through hole, and the first terminal, and
an extending part that is apart from the third layer, extends from the exposure part, and exposes the first surface, and

in a direction along the first surface, at least a part of the extending part is apart from the case.