Low resistance ground joints for dual stage actuation disk drive suspensions
US-9245555-B2 · Jan 26, 2016 · US
Low resistance ground joints for dual stage actuation disk drive suspensions
US2016104503A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016104503-A1 |
| Application number | US-201514974760-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 18, 2015 |
| Priority date | May 24, 2010 |
| Publication date | Apr 14, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A stainless steel dual stage actuated disk drive head suspension baseplate including a plated electrical contact area having nickel and gold. The baseplate can be heat treated. The nickel and gold can be in a mixture.
First claim
Opening claim text (preview).
The following is claimed: 1 . A stainless steel disk drive head suspension baseplate including a plated contact area, wherein the plated contact area comprises nickel and gold. 2 . The baseplate of claim 1 wherein the plated contact area comprises a mixture of nickel and gold. 3 . The baseplate of claim 2 wherein the baseplate and contact area are heat treated. 4 . The baseplate of claim 3 wherein the contact area includes gold in an amount of about 2%-10%. 5 . The baseplate of claim 3 wherein the baseplate is a dual stage actuation baseplate that includes a first portion having a swage mount and a T-shaped portion having a stem extending from the first portion, and wherein the contact area includes a portion on the first portion of the baseplate adjacent the T-shaped portion. 6 . The baseplate of claim 5 wherein the portion of the contact area on the first portion of the baseplate is shaped as a stripe. 7 . The baseplate of claim 5 wherein the plated contact area is located on only a portion of the baseplate. 8 . The baseplate of claim 5 wherein the contact area includes portion on the stem of the T-shaped portion. 9 . The baseplate of claim 5 wherein the contact area includes gold in an amount of about 2%-10%. 10 . The baseplate of claim 2 wherein the contact area includes gold in an amount of about 2%-10%. 11 . The baseplate of claim 1 wherein the contact area includes gold in an amount of about 2%-10%. 12 . The baseplate of claim 1 wherein the contact area is shaped as a stripe. 13 . The baseplate of claim 1 wherein baseplate is a dual stage actuation baseplate that includes a first portion having a swage mount and a T-shaped portion having a stem extending from the first portion, and wherein the contact area includes a portion on the first portion of the baseplate adjacent the T-shaped portion. 14 . The baseplate of claim 13 wherein the portion of the contact area on the first portion of the baseplate is shaped as a stripe. 15 . The baseplate of claim 13 wherein the plated contact area is located on only a portion of the baseplate. 16 . The baseplate of claim 13 wherein the contact area includes portion on the stem of the T-shaped portion. 17 . A method for manufacturing a disk drive head suspension baseplate, including: applying nickel and gold to a contact area of a stainless steel baseplate; and heat treating the baseplate after applying the nickel and gold. 18 . The method of claim 17 , including applying amounts of nickel and gold to the stainless steel baseplate and heating the baseplate to produce a contact area having about 2%-10% gold. 19 . The method of claim 17 wherein applying nickel and gold includes: applying a layer of material including nickel on the stainless steel baseplate; and applying a layer of gold on the layer of material including nickel.
Assignees
Inventors
Classifications
Constructional details of the electrical connection between head and arm · CPC title
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
- G11B5/4873Primary
the arm comprising piezoelectric or other actuators for adjustment of the arm · CPC title
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Frequently asked questions
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- What does patent US2016104503A1 cover?
- A stainless steel dual stage actuated disk drive head suspension baseplate including a plated electrical contact area having nickel and gold. The baseplate can be heat treated. The nickel and gold can be in a mixture.
- Who is the assignee on this patent?
- Hutchinson Technology
- What technology area does this patent fall under?
- Primary CPC classification G11B5/4873. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Apr 14 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).