IP Library Granted Patent US 9,472,242
Granted Patent B1
US 9,472,242 · App. 14/843,911 · Granted Oct 18, 2016

Hard disk drive enclosure base with feed through flexure design and accompanying flexure

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Quick Facts
Patent No.
US 9,472,242
App. No.
14/843,911
Granted
Oct 18, 2016
Kind
B1
Abstract

A storage base having an interior side and an exterior side is described. The storage drive base includes a slotted aperature, a flexible circuit and a sealing-adhesive barrier. The slotted aperature passes through the storage drive base from the interior side to the exterior side. The flexible circuit has a first end and a second end. The first end of the flexible circuit is installed in the slotted aperture and aligned so that the first end extends along an interior surface of the storage drive base in a location proximal to the slotted aperture. The sealing-adhesive barrier is applied between edges of the slotted aperture and the flexible circuit to form a hermetic seal between the exterior side and the interior side of the storage drive base.

Claims (43)

1. A storage drive base having an interior side and an exterior side, the storage drive base comprising:

a slotted aperture passing through the storage drive base from the interior side to the exterior side;

a flexible circuit having a first end disposed on the interior side of the storage drive base and a second end disposed on the exterior side of the storage drive base,

wherein the first end of the flexible circuit is installed through the slotted aperture and aligned so that the first end lays flat along an interior surface of the storage drive base in a location proximal to the slotted aperture, and

wherein the first end of the flexible circuit includes at least one exposed interior electrode contact pad exposed to the interior of the storage drive base; and

a sealing-adhesive barrier, applied between edges of the slotted aperture and the flexible circuit, to form a hermetic seal between the exterior side and the interior side of the storage drive base.

2. The storage drive base of claim 1 ,

wherein the second end of the flexible circuit includes at least one exposed exterior electrical circuit contact communicatively coupled to the at least one exposed interior electrode contact pad.

3. The storage drive base of claim 2 , wherein the first end of the flexible circuit is oriented such that the at least one exposed interior electrode contact pad faces away from the storage drive base.

4. The storage drive base of claim 2 , further comprising a printed circuit board including a compression connector electrically connected to the at least one exposed interior electrode contact pad.

5. The storage drive base of claim 1 , further comprising an alignment feature provided on the storage drive base configured to mechanically align with a corresponding alignment feature provided on the first end of the flexible circuit.

6. The storage drive base of claim 1 , further comprising a circuit housing member surrounding the flexible circuit, the circuit housing member configured to be inserted into the slotted aperture.

7. The storage drive base of claim 1 , wherein the slotted aperture has a thickness at least 1.1 times the thickness of the first end of the flexible circuit; and

wherein thickness of the slotted aperture is no more than 10 times the thickness of the first end of the flexible circuit.

8. A storage drive housing comprising the storage drive base of claim 1 .

9. A storage drive comprising:

a storage media;

a spindle motor for rotating the storage media;

a head stack assembly (HSA);

a flexible circuit having a first end electrically connected to the HSA and a second end; and

a storage drive housing comprising:

a storage drive base having

an interior side, wherein the storage media and the HSA are disposed on the interior side, and

an exterior side, the storage drive base comprising:

a slotted aperture passing through the storage drive base from the interior side to the exterior side,

wherein the first end of the flexible circuit is installed through the slotted aperture and aligned so that the first end lays flat along an interior surface of the storage drive base in a location proximal to the slotted aperture,

wherein the first end of the flexible circuit is disposed on the interior side of the storage drive base and the second end of the flexible circuit is disposed on the exterior side of the storage drive base and

wherein the first end of the flexible circuit includes at least one exposed interior electrode contact pad exposed to the interior of the storage drive base; and

a sealing-adhesive barrier, applied between edges of the slotted aperture and the flexible circuit, to form a hermetic seal between the exterior side and the interior side of the storage drive base.

10. The storage drive of claim 9 , further comprising a printed circuit board assembly (PCBA) disposed on the exterior side of the storage drive housing.

11. The storage drive of claim 10 , wherein the at least one interior electrode contact pad is connected to the HSA;

wherein the second end of the flexible circuit includes at least one exterior electrode contact pad communicatively coupled to the at least one exposed interior electrode contact pad; and

wherein the at least one exterior electrode contact pad is connected to the PCBA.

12. The storage drive of claim 11 , wherein the at least one of the first end of the flexible circuit and the second end of the flexible circuit includes a compression connector, and

wherein the compression connector connects the flexible circuit to at least one of the PCBA and the HSA.

13. The storage drive of claim 9 , wherein the at least one interior electrode contact pad is connected to the HSA; and

wherein the second end of the flexible circuit includes at least one exterior electrode contact pad communicatively coupled to the at least one exposed interior electrode contact pad.

14. The storage drive of claim 13 , wherein the first end of the flexible circuit is laid flat along the interior side of the storage drive base.

15. The storage drive of claim 13 , wherein the first end of the flexible circuit is connected to the HSA by a compression connection.

16. The storage drive of claim 9 , further comprising an alignment feature provided on the storage drive base configured to mechanically align with a corresponding alignment feature provided on the first end of the flexible circuit.

17. The storage drive of claim 9 , further comprising a circuit housing member surrounding the flexible circuit, the circuit housing member configured to be inserted into the slotted aperture.

18. The storage drive of claim 9 , wherein the slotted aperture has a thickness at least 1.1 times the thickness of the first end of the flexible circuit; and

wherein thickness of the slotted aperture is no more than 10 times the thickness of the first end of the flexible circuit.

Assignments (8)
PATENT COLLATERAL AGREEMENT - DDTL LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 067045/0156 →
PATENT COLLATERAL AGREEMENT - A&R LOAN AGREEMENT Recorded Aug 21, 2023
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A.
Reel/Frame 064715/0001 →
RELEASE OF SECURITY INTEREST AT REEL 038744 FRAME 0481 Recorded Feb 8, 2022
From: JPMORGAN CHASE BANK, N.A.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 058982/0556 →
RELEASE OF SECURITY INTEREST Recorded Mar 5, 2018
From: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 045501/0714 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038744/0481 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: U.S. BANK NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038744/0281 →
SECURITY AGREEMENT Recorded May 17, 2016
From: WESTERN DIGITAL TECHNOLOGIES, INC.
To: JPMORGAN CHASE BANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038722/0229 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 3, 2015
From: LE, LYNN BICH-QUY; HITCHNER, THOMAS J.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 036486/0604 →