Patent ID: 7158331

Claim:
A disk drive comprising: a casing; a disk-shaped recording medium arranged in the casing; a drive motor which is arranged in the casing and which holds and rotates the recording medium; a head for performing read/write operations on the recording medium; a head actuator arranged in the casing and movably supporting the head to move the head relative to the recording medium, said head actuator performing a retracting operation to move the head to a retracted position with respect to the recording medium; a board unit arranged in the casing and connected to the head actuator, the board unit including a board main body arranged on an inner surface of the casing and a main flexible printed circuit board extending from the board main body and connected to the head actuator, the board main body and main flexible printed circuit board being integrally formed of a flexible printed circuit board; a control circuit board arranged on an outer surface of the casing and connected to the board unit; and at least one capacitor mounted on the board main body for supplying power to said head actuator during said retracting operation.