An electrical feed-through, such as a PCB connector, involves at least one positioning protrusion protruding from a main body, and may further include multiple positioning protrusions protruding in respective directions from the main body. A data storage device employing such a feed-through comprises an enclosure base with which the feed-through is coupled, where the base comprises an annular recessed surface surrounding an aperture that is encompassed by the feed-through and is at a first level, and at least one recessed positioning surface at a higher level than the first level and extending in a direction away from the annular recessed surface. The positioning protrusion of the electrical feed-through physically mates with the recessed positioning surface of the base, such that the position of the feed-through is vertically constrained by the recessed positioning surface.

A hard disc drive includes a base deck, a cover welded to the base deck, and a voice coil motor. The voice coil motor includes a first voice coil motor assembly and a second voice coil motor assembly. Either one or both of the first and second voice coil motor assemblies can be welded to the base deck.

It has been discovered that the cavity of data storage devices may be temporarily sealed to inhibit loss of gasses from the cavity by use of a sealing solution comprising a sealing component that is in contact with the gasket of the device, so that the gasket and sealing solution, together with the structural cover and base deck of the device, temporarily seals the cavity. The sealing solution comprises a sealing component having molecular weight of from about 1000 to about 30,000 Daltons.

A disk drive enclosure includes a cover having a peripheral shape conforming to that of a base of the disk drive enclosure. A formed-in-place gasket is on an inner surface of the cover and corresponds to a shape of a mating edge of the base. The formed-in-place gasket forms a seal between the cover and the mating edge of the base. A stop member is located along an inner periphery of the formed-place-gasket and in immediate proximity to the formed-in-place gasket.

Certain exemplary aspects of the present disclosure are directed towards dual cavity apparatus and related methods involving hermetically sealing the cavities by evacuating and atmosphere therein, filling the cavity with a gas, and sealing the gas in the cavities. This evacuation and fill approach is carried out through openings that provide access to the cavities. During evacuation of at least one of the cavities through one of the openings, one or more spacers prevent the cavity from collapsing in response to the vacuum force.

An electrical feed-through involves a laminate structure having alternating insulator and metal layers with electrically conductive through-holes formed therethrough, by which a lower connector pad is electrically connected with a corresponding upper connector pad, and wherein the number of through-holes is less than the number of connector pads on either side. Thus, the chain of clearances associated with the through-holes on the inner metal layer(s) is reduced, which provides more leak resistant metal material within the metal layer(s), while maintaining suitable electrical performance and avoiding disruption of existing manufacturing. Such a feed-through may be used at an interface between a hermetically-sealed internal environment, such as in a lighter-than-air gas filled data storage device, and the external environment.

A data storage device involves inner surfaces of sidewalls of a second cover overlapping with and adhesively bonded with the outer surfaces of sidewalls of an enclosure base having an uppermost top surface, where the second cover or an underlying first cover are removably adhered to the uppermost top surface of the base. The removable adhesive bond may comprise a pressure-sensitive adhesive, which can provide for reworkability during the manufacturing and testing process. The second cover-to-base sidewall bond may form a hermetic seal between the second cover and the base. Hence, a thinner base sidewall adjacent to the recording disks is enabled, leaving more space available for larger-diameter recording disks within a standard form factor, hermetically-sealed storage device, which may be filled with a lighter-than-air gas.

An electrical feed-through involves a laminate structure having alternating insulator and metal layers with electrically conductive through-holes formed therethrough, by which a lower connector pad is electrically connected with a corresponding upper connector pad, and wherein the number of through-holes is less than the number of connector pads on either side. Thus, the chain of clearances associated with the through-holes on the inner metal layer(s) is reduced, which provides more leak resistant metal material within the metal layer(s), while maintaining suitable electrical performance and avoiding disruption of existing manufacturing. Such a feed-through may be used at an interface between a hermetically-sealed internal environment, such as in a lighter-than-air gas filled data storage device, and the external environment.

A disk drive enclosure includes a cover having a peripheral shape conforming to that of a base of the disk drive enclosure. A formed-in-place gasket is on an inner surface of the cover and corresponds to a shape of a mating edge of the base. The formed-in-place gasket forms a seal between the cover and the mating edge of the base. A stop member is located along an inner periphery of the formed-place-gasket and in immediate proximity to the formed-in-place gasket.

Disclosed herein is a magnetic storage device that comprises a housing having a base and a cover. The base includes a bottom portion and side portions that define an interior cavity for maintaining magnetic disks. The side portions form a top surface configured to receive the cover. The magnetic storage device also includes a continuous gasket disposed between the cover and the top surface. The continuous gasket is formed with at least a first region having a first cross-sectional profile, and a second region having a second cross-sectional profile. The magnetic storage device also includes an adhesive disposed between the continuous gasket and the top surface and configured to bond the continuous gasket to the base.