A Hard Disk Drive (HDD) includes a write-inhibit signal that is generated
by a head-disk interaction sensor during a write process that is
integrated with a suspension of the HDD when fly-height modulation of the
slider is detected during a write process. The suspension load beam
includes a dimple and a laminated flexure. The laminated flexure includes
a surface that is adapted to receive a slider and a surface that is
adapted to contact the dimple. The head-disk interaction sensor is
fabricated as part of the laminations of the flexure. The head-disk
interaction sensor can be an accelerometer that senses an acceleration of
the flexure when the slider contacts the disk of the disk drive and/or a
pressure sensor that senses a pressure between the flexure and the dimple
when the slider contacts the disk. A write-inhibit circuit is responsive
to the sensor signal by inhibiting the write process.