Browse Prior Art Database

End-Face Design of Base Plate for Hermetic Sealing

IP.com Disclosure Number: IPCOM000116673D
Original Publication Date: 1995-Oct-01
Included in the Prior Art Database: 2005-Mar-31
Document File: 2 page(s) / 29K

Publishing Venue

IBM

Related People

Endo, T: AUTHOR [+4]

Abstract

This invention describes the end face design of Base Plate to achieve better hermetic sealing in Hard Disk Drive (HDD). Hermetic sealing is best selection from HDD reliability point of view, because hermetic sealing can save the humidity fluctuations inside HDD. If hermetic sealing is selected in HDD, the leak could happen by the transformation of Top Cover in lower and/or higher air pressure.

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End-Face Design of Base Plate for Hermetic Sealing

      This invention describes the end face design of Base Plate to
achieve better hermetic sealing in Hard Disk Drive (HDD).  Hermetic
sealing is best selection from HDD reliability point of view, because
hermetic sealing can save the humidity fluctuations inside HDD.  If
hermetic sealing is selected in HDD, the leak could happen by the
transformation of Top Cover in lower and/or higher air pressure.

      The radial form is designed on the end face of Base Plate which
is contacted to the surface of Top Cover, as shown in Fig. 1.  When
HDD is exposed to lower and/or higher air pressure and Top Cover is
deformed, the line contact between Top Cover and Base Plate can be
achieved through seal material as shown in Fig. 2, and better sealing
effect can be taken.

      This radii form can be applied to the surface of Top Cover,
which is contacted to Base Plate.