Suspension assembly having a microactuator electrically connected to a gold coating on a stainless steel surface
AssigneeWestern Digital Technologies, Inc.
InventorsYanning Liu, Wing C. Shum, John E. Scura
Life of this patent
Estimating the term…
Abstract
A novel suspension assembly includes a suspension assembly mounting plate, a microactuator mounting structure extending from the suspension assembly mounting plate, a load beam extending from the microactuator mounting structure, and a laminated flexure attached to the load beam. The laminated flexure includes a tongue that has a read head bonding surface. The suspension assembly includes a stainless steel surface having a gold coating, and a piezoelectric microactuator attached to the microactuator mounting structure and electrically connected to the gold coating.
Claims18
A suspension assembly comprising:
- a suspension assembly mounting plate;
- a microactuator mounting structure extending from the suspension assembly mounting plate;
- a load beam extending from the microactuator mounting structure;
- and
- a laminated flexure attached to the load beam, the laminated flexure including a tongue that has a read head bonding surface;
- wherein the microactuator mounting structure includes a stainless steel surface having at least one partial etched trench, the partial etched trench in the stainless steel surface being coated with a gold coating, and the suspension assembly further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating.
A head gimbal assembly (HGA) comprising:
- a suspension assembly, the suspension assembly including
- a suspension assembly mounting plate;
- a microactuator mounting structure extending from the suspension assembly mounting plate;
- a load beam extending from the microactuator mounting structure;
- and
- a laminated flexure attached to the load beam, the laminated flexure including a tongue;
- wherein the microactuator mounting structure includes a stainless steel surface having at least one partial etched trench, the partial etched trench in the stainless steel surface being coated with a gold coating, and the suspension assembly further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating;
- and
- a read head bonded to the tongue.
A disk drive comprising:
- a disk drive base;
- a spindle attached to the disk drive base;
- a disk mounted on the spindle;
- a coarse actuator attached to the disk drive base, the coarse actuator including an actuator arm;
- a suspension assembly, the suspension assembly including
- a suspension assembly mounting plate attached to the actuator arm;
- a microactuator mounting structure extending from the suspension assembly mounting plate;
- a load beam extending from the microactuator mounting structure;
- and
- a laminated flexure attached to the load beam, the laminated flexure including a tongue;
- wherein the microactuator mounting structure includes a stainless steel surface having at least one partial etched trench, the partial etched trench in the stainless steel surface being coated with a gold coating, and the suspension assembly further comprises a microactuator attached to the microactuator mounting structure and electrically connected to the gold coating;
- and
- a read head bonded to the tongue.
Dependencies are inferred from the claim text.