IP Library › Granted Patent US 11,276,436
Granted Patent B1
US 11,276,436 · App. 17/141,377 · Granted Mar 15, 2022

Corrosive gas reduction for electronic devices

Inventors: Li Hong Zhang (Singapore, SG); Xiong Liu (Singapore, SG)
Assignee: Seagate Technology LLC
G11B33/1466F16J15/064F16J15/102F16J15/104G11B25/043G11B33/022G11B33/1446
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Quick Facts
Patent No.
US 11,276,436
App. No.
17/141,377
Granted
Mar 15, 2022
Kind
B1
Abstract

A device includes a cover and a base. The base is coupled to the cover to create an enclosure. The device also includes a form-in-place-gasket. The form-in-place-gasket is positioned between the cover and the base to create a seal. The form-in-place-gasket includes an acid-absorbing material.

Claims (28)

1. A device comprising:

a cover;

a base coupled to the cover to create an enclosure; and

a form-in-place-gasket (FIPG) positioned between the cover and the base to create a seal, the FIPG comprising an acid-absorbing material, the acid-absorbing material comprising a silica gel, which comprises a porous material.

2. The device of claim 1 , wherein the acid-absorbing material is capable of absorbing sulfur dioxide, hydrogen halogen, hydrogen sulfide, and nitrous oxide.

3. The device of claim 1 , wherein the silica gel has a pore volume of 0.70-0.80 m 3 /g.

4. The device of claim 1 , wherein the silica gel comprises pores having diameters up to 5 nm.

5. The device of claim 1 , wherein the silica gel has a surface area of 500-800 m 2 /g.

6. The device of claim 1 , wherein the silica gel is coated with an alkaline material.

7. The device of claim 1 , wherein the FIPG comprises a filler comprising 10-50% of the acid-absorbing material by weight.

8. The device of claim 1 , wherein the acid-absorbing material is uniformly distributed within the FIPG.

9. The device of claim 1 , wherein the acid-absorbing material is concentrated on an enclosure-facing side of the gasket.

10. The device of claim 1 , wherein the acid-absorbing material is not directly exposed to an external environment of the device.

11. The device of claim 1 , wherein the FIPG includes a base material that comprises rubber.

12. A device comprising:

a cover;

a base coupled to the cover to create an enclosure; and

a gasket positioned between the cover and the base to create a seal, the gasket comprising a base material and a filler that comprises silica gel, which is coated with an alkaline material.

13. The device of claim 12 , wherein the silica gel is concentrated on an enclosure-facing side of the gasket.

14. The device of claim 12 , wherein the silica gel is capable of absorbing sulfur dioxide, hydrogen halogen, hydrogen sulfide, and nitrous oxide.

15. The device of claim 12 , wherein the device is a hard disk drive.

16. The device of claim 12 , wherein the silica gel comprises pores having diameters of 3-5 nm.

17. A method for forming a sealed enclosure between a cover and a base of an electronic device, the method comprising:

dispensing an uncured first gasket material to the cover and/or the base, the first gasket material comprising a base material and a first filler with an acid-absorbing material;

dispensing an uncured second gasket material to the cover and/or the base, the second gasket material comprising the base material and a second filler; and

coupling the cover to the base to create the sealed enclosure.

18. The method of claim 17 , wherein the first gasket material and the second gasket material are both dispensed from a shared outlet.

19. The method of claim 17 , wherein the first gasket material and the second gasket material are dispensed from separate outlets.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2021
From: ZHANG, LI HONG; LIU, XIONG
To: SEAGATE TECHNOLOGY LLC
Reel/Frame 054839/0451 →
Cited By (1)
US 12,542,162