Low resistance ground joints for dual stage actuation disk drive suspensions
View Patent ↗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.
1. A stainless steel disk drive head suspension baseplate including a plated contact area directly on an outer surface of the stainless steel disk drive head suspension baseplate, wherein the plated contact area comprises a mixture of nickel and gold.
2. The baseplate of claim 1 wherein the baseplate and contact area are heat treated.
3. The baseplate of claim 2 wherein the contact area includes gold in an amount of about 2%-10%.
4. The baseplate of claim 2 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.
5. The baseplate of claim 4 wherein the portion of the contact area on the first portion of the baseplate is shaped as a stripe.
6. The baseplate of claim 4 wherein the plated contact area is located on only a portion of the baseplate.
7. The baseplate of claim 4 wherein the contact area includes portion on the stem of the T-shaped portion.
8. The baseplate of claim 4 wherein the contact area includes gold in an amount of about 2%-10%.
9. The baseplate of claim 2 wherein the contact area includes gold in an amount of about 2%-10%.
10. The baseplate of claim 1 wherein the contact area includes gold in an amount of about 2%-10%.
11. The baseplate of claim 1 wherein the contact area is shaped as a stripe.
12. 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.
13. The baseplate of claim 12 wherein the portion of the contact area on the first portion of the baseplate is shaped as a stripe.
14. The baseplate of claim 12 wherein the plated contact area is located on only a portion of the baseplate.
15. The baseplate of claim 12 wherein the contact area includes portion on the stem of the T-shaped portion.