Micro-dual stage actuated gimbal design

Patent metadata

Field	Value
Publication number	US-11410693-B2
Application number	US-202015931412-A
Country	US
Kind code	B2
Filing date	May 13, 2020
Priority date	May 24, 2019
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

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 pair of microactuator elements, each of the pair of microactuator elements are disposed on the second surface on a respective side of the slider and includes a first end portion and a second end portion, and the microactuator elements are mounted to the second surface;
a tongue of the gimbal portion on which the slider is mounted;
a proximate pair of first supporting portions and a distal pair of second supporting portions of the gimbal portion, to which a pair of end portions are individually secured to the tongue; and
a conductive circuit portion unsupported from a first stationary part and beyond the proximate pair of first supporting portions, the conductive circuit portion first connects with a proximal side of the tongue at a point that is within a length of the slider.

2. The flexure assembly of claim 1 , wherein the conductive circuit portion includes a conductor connected to an element of the slider.

3. The flexure assembly of claim 2 , wherein the conductor connects to electrodes of the pair of microactuator elements.

4. The flexure assembly of claim 1 , wherein the proximate pair of first supporting portions are individually secured and supported by the first stationary part.

5. The flexure assembly of claim 1 , wherein the distal pair of second supporting portions are individually secured and supported by a second stationary part.

6. The flexure assembly of claim 1 , wherein the pair of end portions are U-shaped.

7. The flexure assembly of claim 1 , wherein the tongue includes a fixed first tongue portion, and a movable second tongue portion.

8. The flexure assembly of claim 7 , wherein the tongue further includes a first hinge portion formed between the fixed first tongue portion and the moveable second tongue portion.

9. The flexure assembly of claim 1 , wherein the first surface faces a load beam, and the slider, the microactuator elements, and the conductive circuit portion are all disposed on the second surface.

10. A disk drive suspension comprising:
a load beam; and
a flexure assembly, including:
a gimbal portion on which a slider is mounted, the gimbal portion including a first surface and a second surface which is opposite to the first surface, wherein the slider is mounted on the second surface;
a pair of microactuator elements, each of the pair of microactuator elements disposed on a respective side of the slider and includes a first end portion and a second end portion, and the microactuator elements mounted to the second surface;
a tongue of the gimbal portion on which the slider is mounted, the tongue including a dimple which represents the center of the tongue;
a proximate pair of first supporting portions and a distal pair of second supporting portions of the gimbal portion, to which a pair of end portions are individually secured to the tongue; and

a conductive circuit portion unsupported from a first stationary part and beyond the proximate pair of first supporting portions, the conductive circuit portion first connects with a proximal side of the tongue at a point that is within a length of the slider.

11. The disk drive suspension of claim 10 , wherein the conductive circuit portion includes a conductor connected to an element of the slider.

12. The disk drive suspension of claim 11 , wherein the conductor connects to electrodes of the pair of microactuator elements.

13. The disk drive suspension of claim 10 , wherein the first surface faces the load beam, and the slider, the microactuator elements, and the conductive circuit portion are all disposed on the second surface.

14. The disk drive suspension of claim 10 , wherein the proximate pair of first supporting portions are individually secured and supported by the first stationary part.

15. The disk drive suspension of claim 10 , wherein the distal pair of second supporting portions are individually secured and supported by a second stationary part.

16. The disk drive suspension of claim 10 , wherein the pair of end portions are U-shaped.

17. The disk drive suspension of claim 10 , wherein the tongue includes a fixed first tongue portion, and a movable second tongue portion.

18. The disk drive suspension of claim 17 , wherein the tongue further includes a first hinge portion formed between the fixed first tongue portion and the movable second tongue portion.

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

• G11B5/486

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

• G11B5/483 Primary

  Piezoelectric devices between head and arm, e.g. for fine adjustment · CPC title

• G11B5/4846

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