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Hard disk drive and hermetic sealing method thereof

A hard disk drive, airtight sealing technology, applied in the direction of instruments, control/regulation of carrier gas pressure, manufacturing magnetic head surface, etc., can solve the problems of difficult airtight sealing, expensive, and can not contain dense gas

Active Publication Date: 2011-12-28
WESTERN DIGITAL TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Also, traditional aluminum-based cast plates may have too many holes to contain low-density gases for the lifetime of HDDs
Also, for aluminum-aluminum and aluminum-steel hermetic joints, producing a true hermetic seal is difficult and expensive

Method used

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  • Hard disk drive and hermetic sealing method thereof
  • Hard disk drive and hermetic sealing method thereof
  • Hard disk drive and hermetic sealing method thereof

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Embodiment Construction

[0010] Reference will now be made in detail to embodiments of the present technology, examples of which are illustrated in the accompanying drawings. While the technology will be described in conjunction with various embodiments, it will be understood that they are not intended to limit the technology to these embodiments. On the contrary, the technology is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the various embodiments as defined by the appended claims.

[0011] Furthermore, in the following description of the embodiments, numerous specific details are set forth in order to provide a thorough understanding of the technology. However, the technology may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail as not to unnecessarily obscure aspects of the embodiments.

[0012] now refer to figure 1 , s...

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Abstract

The invention provides a hermetically sealed hard disk drive and a hermetically sealed method thereof. The hard disk drive includes: an inner substrate including a porous material configured for mounting internal components of the hard disk drive; an outer hermetic substrate including a non-porous material configured to hermetically seal the hard disk drive; an outer connecting substrate, Fastening features are included; and an outer hermetic enclosure hermetically sealed to said outer hermetic substrate.

Description

technical field [0001] The present invention relates to hard disk drives, and more particularly to hermetically sealed hard disk drives and methods. Background technique [0002] Typically, hard disk drives (HDDs) are sealed to prevent contaminants from entering the HDD and / or to prevent gases within the HDD from escaping. There are about fifteen types of non-hermetic seals available, all using polymers such as elastomeric pads and adhesive tapes. In addition, the breather filter is used to balance the internal pressure and the external pressure. Unfortunately, a true airtight seal cannot be established using traditional sealing methods. Therefore, high gas permeability results. For example, the solubility of water vapor and the diffusion coefficient of low-density gases such as helium are very high. [0003] Furthermore, conventional aluminum-based cast plates may have too many holes to contain low-density gases for the life of the HDD. Also, for aluminum-aluminum and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B5/48G11B5/187
CPCG11B25/043G11B33/1486G11B33/148
Inventor 巴里.C.斯蒂普
Owner WESTERN DIGITAL TECH INC
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