Patent ID: 9437230
Filing Date: 2016-09-06
CPC Classification: G11B

Claim Text:
1. A micro-milliactuator comprising: a piezoelectric actuator mount plate including one or more side tabs for enabling attachment of the piezoelectric actuator mount plate to an actuator arm; one or more piezoelectric actuators mounted to the piezoelectric actuator mount plate and rotating the micro-milliactuator in response to control signals; a suspension load beam coupled to the piezoelectric actuator mount plate at a first end and capable of mounting a slider at a second end opposite the first end; a suspension flexure physically coupled to the suspension load beam and carrying a plurality of conductive traces, wherein some of the plurality of conductive traces provide data signals via flexure legs to the slider; and one or more sensors coupled to the suspension flexure and the suspension load beam for vibration compensation and suppression, the one or more sensors generating sensor signals in response to sensed vibrations during operation and providing the sensor signals to corresponding ones of the plurality of conductive traces for generation of the control signals, the control signals comprising voice coil motor coarse control signals and micro-milliactuator fine control signals, wherein the one or more sensors comprise one or more load beam piezoelectric sensors coupled to the suspension load beam for sensing load beam strain on the suspension load beam, wherein the suspension load beam comprises a load beam weld at one end of each of the one or more load beam piezoelectric sensors for coupling the load beam strain in the suspension load beam to stretching of the one or more load beam piezoelectric sensors, and wherein the suspension load beam further comprises a load beam slot located over and perpendicular to each of the one or more load beam piezoelectric sensors for coupling the load beam strain to stretching of the one or more load beam piezoelectric sensors.