Patent ID: 8279552

Claim:
A hard disk drive comprising: an internal base plate comprising a porous material and configured for attachment of internal components of said hard disk drive; an external hermetic base plate comprising a non-porous material and configured to hermetically seal said hard disk drive, wherein said internal base plate is adjacent to a first side of said external hermetic base plate; an external attachment base plate comprising fastening features, wherein said external attachment base plate is adjacent to a second side of said external hermetic base plate opposite said first side of said external hermetic base plate, wherein said external attachment base plate comprises a bottom surface that is coplanar with a bottom surface of said external hermetic base plate, and wherein said external attachment base plate comprises an external attachment feature; and an external hermetic cover hermetically sealed to said external hermetic base plate, wherein said internal base plate and said internal components of said hard disk drive are hermetically sealed within said hard disk drive.