Patent ID: 7151650

Claim:
A head assembly to use with a recording medium, comprising: a suspension coupled to an end portion of an actuator arm provided on a base to rotate around a pivot shaft; a head slider installed at the suspension and having a head to record and/or read information on and/or from the recording medium; a variable device located between the suspension and the head slider, wherein one side of the variable device is coupled to the suspension to adjust a flying height of the head slider by adjusting at least one of a pitch angle and a rolling angle made by the head with respect to the recording medium, wherein the variable device is a piezoelectric actuator having a piezoelectric material with a thickness that varies by the application of electric power; and a flexure, wherein the head is installed at the suspension using the flexure, and the variable device is disposed between the flexure and the suspension, wherein the variable device is formed to guide prevention of contact between the flexure where the head slider is attached and the suspension.