Patent ID: 6614627
Filing Date: 2003-09-02
Classification: G11B

Abstract:
The magnetic disk apparatus, comprising:a disk to which information is recorded; a magnetic head to read/write information from/to said disk; a suspension to support the magnetic head, the suspension including a load beam being flexible in a direction substantially perpendicular to said disk; a carriage to hold the suspension; a coarse adjustment actuator to drive said carriage; a microactuator for micro motion; and a microactuator mounting portion provided between the carriage and the load beam of the suspension, said microactuator mounting portion being separate from the load beam of the suspension and coupled thereto, said microactuator mounting portion being substantially rigid in the direction substantially perpendicular to said disk, said microactuator being mounted in said microactuator mounting portion; wherein at least one window is provided in said microactuator mounting portion; and outer frame portions of said microactuator mounting portion that do not cross a centerline in a longitudinal direction of the suspension are structured by flexible coupling members which are extensible and contractible in the longitudinal direction of the suspension, and said outer frame portions are disposed outside the microactuator; and wherein said outer frame portions are configured in a shape protruding outward from side surface of said carriage.