Embodiments disclosed herein generally relate to hermetic electrical connectors used in hard disk drives. The hermetic electrical connector includes a barrier structure having a first plurality of connecting pads disposed on a first surface of the barrier structure and a second plurality of connecting pads disposed on a second surface of the barrier structure opposite the first surface. A plurality of conductors is disposed within the barrier structure, and each conductor is coupled to a connecting pad of the first plurality of connecting pads and a corresponding connecting pad of the second plurality of connecting pads. The barrier structure further includes a dielectric material between the first and second surfaces, and one or more layers embedded in the dielectric material. The addition of the layers helps choke the helium gas flow, thus improving sealing of the electrical connector while maintaining high-speed electrical transmission.

Provided is a base unit for use in a disk drive apparatus and to be attached to a cover portion to define an enclosed space to be filled with a gas having a density lower than that of air. The base unit includes a base portion arranged to extend radially and support a motor capable of rotating about a central axis extending in a vertical direction; and a lateral wall portion arranged to extend axially upward from an edge portion of the base portion. The base portion includes a part accommodating portion defined by a through hole arranged to pass through the base portion in an axial direction, and arranged to accommodate at least a portion of a predetermined part; and a seal member arranged to close an end portion of the through hole on one axial side. The base portion and the lateral wall portion include a base made of a metal; a coating portion formed by electrocoating a surface of the base with at least a resin; and at least one exposed portion where the surface of the base is exposed. The at least one exposed portion is arranged in at least one of a predetermined first region and a second region. The first region lies on an axially upper end portion of the lateral wall portion, the axially upper end portion being opposite to the cover portion. The second region lies on an outer surface of the base portion, and is arranged to extend outward from an edge of the part accommodating portion so as to have a predetermined width.

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.

Described are devices and assemblies (e.g., precursors to a devices) that include a friction stir weld or a joint useful for forming a friction stir weld, the devices containing two metal components that form the joint at which the friction stir weld can be produced, as well as methods for producing a devices, assembly, joints, or friction stir weld as described.

Provided is a base unit for use in a disk drive apparatus including a motor arranged to be capable of rotating about a central axis extending in a vertical direction. The base unit includes a base member arranged to extend radially to support the motor, and including a predetermined adhesion region and an outside region outside of the adhesion region; and a connector electrically connected to a wire arranged on the base member. The connector is adhered to the base member through an adhesive at the adhesion region of the base member. A wettability of the adhesive on the adhesion region is higher than a wettability of the adhesive on the outside region of the base member.

A disk apparatus includes a base including a bottom wall and a sidewall disposed along a peripheral portion of the bottom wall, a cover including a ceiling plate and a side plate disposed along a periphery of the ceiling plate, the ceiling plate being fixed to the sidewall and the side plate facing an outer surface of the sidewall, and a rotatable recording medium disposed between the cover and the bottom wall. The sidewall of the base includes a first portion adjacent to the recording medium and a protruding portion that protrudes from the first portion outward and away from the recording medium, and at least a portion of a sidewall of the protruding portion faces an opening formed in the side plate.

A disk device includes a housing that includes a base with a through hole formed therein and a cover fixed to the base, wherein the housing contains a low density gas; a plurality of heads and a wiring member disposed within the housing that includes conductors that are electrically connected to the heads; a sealing substrate that is fixed to the base and covers the through hole; a control circuit board that is disposed outside the housing and adjacent to a back surface of the base; a first two-piece connector that is disposed within the housing and connects the sealing substrate and the wiring member; and a second two-piece connector that connects the sealing substrate and the control circuit board. The second two-piece connector includes a first connector mounted on the sealing substrate and a second connector that is mounted on the control circuit board.

According to one embodiment, a disk device includes a rotatable recording medium, a head, and a housing which includes a first enclosed space accommodating the recording medium and the head, and a second enclosed space defined between the first enclosed space and outside air. Low-density gas is sealed in each of the first enclosed space and the second enclosed space, and a pressure of the first enclosed space is different from that of the second enclosed space.

The present disclosure relates to a data storage device housing component (and related data storage devices) that include a polymeric element attached to a surface thereof. The polymeric element includes a polymeric matrix and a plurality of nanofiller elements dispersed within the polymeric matrix to increase the thermal conductivity of the polymeric element as compared to a polymeric element that does not include the plurality of nanofiller elements. Also disclosed are related methods.

The present disclosure provides a compressible gasket, an electronic product comprising the compressible gasket and a method for preparing the compressible gasket. The compressible gasket of the present disclosure comprises an open-cell foam matrix and a filling medium which fills and is cured in the open cells of the open-cell foam, the filling medium comprising a curable adhesive and one or more types of micrometer particles dispersed therein. The one or more types of micrometer particles comprise at least one of thermally conductive micrometer particles and thermally and electrically conductive micrometer particles, and optionally comprise at least one of flame retardant micrometer particles, electrically conductive micrometer particles and electromagnetic wave absorption micrometer particles. The compressible gasket of the present invention can provide shock and vibration absorption and sealing functions and also meet requirements on system thermal management design and/or electromagnetic compatibility design.