Due to the raised operating rotation speed, it has become an important
technical theme to reduce fluid vibrations caused by high speed air flows
passing the wiring extension in a head gimbal assembly in order to raise
the positioning accuracy for higher density recording. Embodiments of the
present invention provide a spring structure to the wiring extension. In
a wiring extension holding section formed on the carriage side, the
wiring extension is retained at the center of the groove of the holding
section by the repulsive force of spring members. By preventing the
wiring extension from being directly subject to high speed air flows
generated by a high-speed rotating disk, this structure is intended to
suppress vibrations of the wiring extension caused by high-speed air
flows passing the wiring extension.