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Hermetically sealed electronics arrangement and approach

  • US 7,123,440 B2
  • Filed: 09/29/2003
  • Issued: 10/17/2006
  • Est. Priority Date: 09/29/2003
  • Status: Expired due to Fees
First Claim
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1. A hermetically sealed hard disk drive (HDD) enclosure, comprising:

  • an aluminum alloy housing comprising two sides, a bottom and a connector opening in the bottom of the housing;

    a hard disk drive assembly disposed within the housing;

    fasteners disposed along the inside bottom of the housing for fastening the hard disk drive assembly only to the bottom of the housing without creating an opening in the housing;

    a multi-pin feedthrough disposed within the connector opening in the bottom of the housing, the multi-pin connector comprising a flange having a plurality of signal pins being disposed within openings therein, wherein ceramic beads seal the openings between the signal pins and the flange;

    a coalesced metal joint securing the multi-pin feedthrough to the opening of the housing and providing a first hermetic seal;

    a first lid disposed over the hard disk drive assembly and coupled to a flange in the side walls of the housing via a non-hermetic seal;

    a pressure sensitive adhesive disposed over the first lid;

    a second lid disposed over the first lid, the second lid comprising an aluminum alloy and being engaged by the pressure sensitive adhesive disposed over the first lid; and

    a laser weld formed between the second lid and the housing along the periphery of the second lid, the laser weld providing a second hermetic seal.

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