US 10,643,655 B2 · Baseplate resonant axis optimization

Abstract

In one implementation, the presently disclosed technology teaches an apparatus with a head attached to an end of a baseplate. The baseplate includes a tilted section that causes a torsion axis of the baseplate to pass near the head. In another implementation, the presently disclosed technology teaches an apparatus with a load beam attached to a baseplate. The apparatus also includes a head attached to an opposite end of the load beam from the baseplate. The baseplate includes a mass-shifted section that causes a torsion axis of the apparatus to pass through the head. In yet another implementation, the presently disclosed technology teaches a method for reducing baseplate resonance amplitude. The method includes shifting a baseplate mass on a suspension toward an adjacent disc surface to move a baseplate torsion axis to pass near a head.

Claims18

Dependent claims

A method comprising:

positioning a head to access data from an adjacent disc surface, the head supported by a load beam attached to a baseplate, the baseplate including:
a planar main section and a mass-shifted section;
and
at least one microactuator motor element positioned on the mass-shifted_section of the baseplate to provide fine position control of the head;
wherein the mass-shifted section includes a top portion and a center portion, the top portion being wider and further away from the adjacent disc surface than the center portion and coupled to the load beam, and wherein the mass-shifted section causing a torsion axis of the planar main section and the mass-shifted section to angle toward the head when the head is flying above the adjacent disc surface with the center portion of the mass-shifted section being closer to the adjacent disc surface than the planar main section.

2 more elements

Dependencies are inferred from the claim text.

Baseplate resonant axis optimization

Life of this patent

Baseplate resonant axis optimization

Life of this patent

Abstract

Claims18