Micro-dual stage actuated gimbal design

Patent metadata

Field	Value
Publication number	US-12300282-B2
Application number	US-202217874789-A
Country	US
Kind code	B2
Filing date	Jul 27, 2022
Priority date	May 24, 2019
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A flexure assembly is described. The flexure assembly includes a gimbal portion on configured to receive a slider. The gimbal portion includes a first surface and a second surface which is opposite to the first surface. The slider is mounted on the second surface. The flexure assembly also includes a pair of microactuator elements. The flexure assembly also includes a tongue of the gimbal portion on which the slider is mounted. The tongue includes a dimple point which represents the center of the tongue. The flexure assembly also includes a pair of first supporting portions and a pair of second supporting portions of the gimbal portion. A pair of end portions are individually secured to the tongue and the first supporting portions and the pair of second supporting portions. The flexure assembly also includes a conductive circuit portion unsupported between a first stationary part and the pair of end portions.

First claim

What is claimed is:

1. A flexure assembly comprising:
a gimbal portion configured to receive a slider, the gimbal portion includes a first surface and a second surface which is opposite to the first surface, the gimbal portion is configured to receive the slider on the second surface;
a distal stationary part at a distal end of the flexure assembly;
a proximal stationary part at a proximal end of the flexure assembly;
a first pair of arms connected to the proximal stationary part;
a second pair of arms that connect to the distal stationary part at a point on a distal side of the distal stationary part;
a distal pair of supporting portions formed on the gimbal portion, each of the distal pair of supporting portions connect with the distal stationary part through distal end portions and are secured and supported by the distal stationary part by the second pair of arms;
a tongue of the gimbal portion on which the slider is mounted, the tongue comprising a fixed first tongue portion, a movable second tongue portion, and a first hinge portion formed between the fixed first tongue portion and the movable second tongue portion; and
a conductive circuit portion unsupported from the proximate stationary part, the conductive circuit portion connects with the tongue within a length of the slider, wherein the conductive circuit portion connects to one of a pair of microactuator elements on respective sides of the slider.

2. The flexure assembly of claim 1 , wherein the microactuator elements are mounted on the second surface on respective sides of the slider and each includes a first end portion and a second end portion.

3. The flexure assembly of claim 2 , wherein the first surface faces a load beam.

4. The flexure assembly of claim 1 , wherein the conductive circuit portion unsupported from the proximate stationary part is disposed on the second surface.

5. The flexure assembly of claim 1 , further comprising a proximate pair of supporting portions individually secured and supported by the proximate stationary part.

6. A disk drive suspension comprising:
a load beam; and
a flexure assembly, including:
a gimbal portion configured to receive a slider, the gimbal portion includes a first surface and a second surface which is opposite to the first surface, the gimbal portion is configured to receive the slider on the second surface;
a distal stationary part at a distal end of the flexure assembly;
a proximal stationary part at a proximal end of the flexure assembly;
a first pair of arms connected to the proximal stationary part;
a second pair of arms that connect to the distal stationary part at a point on a distal side of the distal stationary part;
a distal pair of supporting portions formed on the gimbal portion, each of the distal pair of supporting portions connect with the distal stationary part through distal end portions and are secured and supported by the distal stationary part by the second pair of arms;
a tongue of the gimbal portion on which the slider is mounted, the tongue comprising a fixed first tongue portion, a movable second tongue portion, and a first hinge portion formed between the fixed first tongue portion and the movable second tongue portion; and
a conductive circuit portion unsupported from the proximate stationary part, the conductive circuit portion connects with the tongue at a point that is within a length of the slider.

7. The disk drive suspension of claim 6 , wherein microactuator elements are mounted on the second surface on respective sides of the slider and each includes a first end portion and a second end portion.

8. The disk drive suspension of claim 7 , wherein the first surface faces the load beam.

9. The disk drive suspension of claim 6 , wherein the conductive circuit portion unsupported from the proximate stationary part is disposed on the second surface.

10. The disk drive suspension of claim 6 , further comprising a proximate pair of supporting portions individually secured and supported by the proximate stationary part.

Assignees

• Magnecomp Corp

Inventors

• Ee Kuen Chee
• Zhang Long
• Glaess David

Classifications

• G11B5/4833

  Structure of the arm assembly, e.g. load beams, flexures, parts of the arm adapted for controlling vertical force on the head (G11B5/484 takes precedence) · CPC title

• G11B5/4853

  Constructional details of the electrical connection between head and arm · CPC title

• G11B5/596

  for track following on disks {(G11B5/5526, G11B5/5552, G11B5/5565, G11B5/5582 take precedence)} · CPC title

• G11B5/486

  with provision for mounting or arranging electrical conducting means or circuits on or along the arm assembly · CPC title

• G11B5/5552

  using fine positioning means for track acquisition separate from the coarse (e.g. track changing) positioning means · CPC title