Information storage device having a disk drive and a bridge controller PCB within a monolithic conductive nest
View Patent ↗An information storage device includes a disk drive and a disk drive printed circuit board (PCB) with a disk drive interface connector. A bridge controller PCB is connected to the disk drive interface connector, and includes a host interface connector. An electrically conductive nest of monolithic construction receives the disk drive housing and the bridge controller PCB. The electrically conductive nest includes an enclosure portion enclosing the bridge controller PCB with a conductive grounding tab in contact with the host interface connector. The enclosure portion includes a first plurality of conductive fingers each in contact with the disk drive housing. The electrically conductive nest also includes an extended shield portion adjacent the second side of the disk drive base and overlying the disk drive controller PCB. The extended shield portion includes a second plurality of conductive fingers each in contact with the disk drive housing.
1. An information storage device comprising:
a disk drive including
a spindle;
a disk attached to the spindle;
a disk drive housing, the disk drive housing including a disk drive base having a first side and an opposing second side, the spindle attached to the disk drive base, and a disk drive cover attached to the first side of the disk drive base to enclose the spindle and the disk; and
a disk drive controller printed circuit board attached to the disk drive base and disposed adjacent the second side of the disk drive base, the disk drive printed circuit board including a disk drive interface connector;
a bridge controller printed circuit board connected to the disk drive interface connector, the bridge controller printed circuit board including a host interface connector; and
an electrically conductive nest adapted to receive the disk drive housing and the bridge controller printed circuit board, the electrically conductive nest including:
an enclosure portion enclosing the bridge controller printed circuit board and including a conductive grounding tab in contact with the host interface connector, the enclosure portion also including a first plurality of conductive fingers each in contact with the disk drive housing; and
an extended shield portion adjacent the second side of the disk drive base and overlying the disk drive controller printed circuit board, the extended shield portion including a second plurality of conductive fingers each in contact with the disk drive housing;
wherein the electrically conductive nest consists of a single bent monolithic and continuous sheet of metal rather than being an assembly of sub-components.
2. The information storage device of claim 1 wherein the extended shield portion further comprises a plurality of conductive base contact regions each in contact with the second side of the disk drive base.
3. The information storage device of claim 2 further comprising a plurality of clips, each of the clips in contact with the disk drive cover and the extended shield portion of the electrically conductive nest to mechanically bias the second side of the disk drive base to be in contact with the conductive base contact regions.
4. The information storage device of claim 3 wherein the clips comprise an elastomeric material.
5. The information storage device of claim 3 wherein each of the plurality of clips includes a projection that extends into a hole in the disk drive base.
6. The information storage device of claim 2 further comprising a layer of dielectric material disposed between the disk drive controller printed circuit board and the extended shield portion, and wherein the layer of dielectric material is absent between each of the plurality of conductive base contact regions and the second side of the disk drive base.
7. The information storage device of claim 6 wherein the dielectric material layer comprises Mylar.
8. The information storage device of claim 1 wherein each of the first plurality of conductive fingers includes a location of contact with the disk drive housing that is no more than 10 mm from that of an adjacent one of the first plurality of conductive fingers.
9. The information storage device of claim 1 wherein each of the second plurality of conductive fingers includes a location of contact with the disk drive housing that is no more than 10 mm from that of an adjacent one of the second plurality of conductive fingers.
10. The information storage device of claim 1 wherein the disk drive interface connector is a Serial Advanced Technology Attachment (SATA) compliant connector.
11. The information storage device of claim 1 wherein the host interface connector is a Universal Serial Bus (USB) compliant connector.
12. The information storage device of claim 1 wherein the host interface connector is a IEEE 1394 compliant connector.
13. The information storage device of claim 1 wherein the disk drive is a 2.5″ form-factor disk drive, and wherein the sheet of metal has a thickness in the range 0.1 mm to 0.5 mm.
14. The information storage device of claim 1 wherein the sheet of metal is plated with a metal selected from the group consisting of tin, nickel, and zinc.