A tray device includes a tray body and a bracket mounted on the tray body. The tray body includes at least one connecting plate, a resilient sheet, and a handle assembly. The resilient sheet is coupled to the at least one connecting plate. The handle assembly includes a handle, a rotating shaft, and a snap hook. One end of the handle is hinge-mounted to the at least one connecting plate through the rotating shaft. The snap hook is located on the handle. The handle is fixed to the at least one connecting plate through the snap hook.

A conductive unit (10) electrically connected to a bracket (2) has a smaller electrical resistivity than the bracket (2) and a navigation chassis (3), and guides a noise current, generated in a disc reproducing unit (1) and conducted to the bracket (2), to a coupling unit (7) via a rear chassis (5).

A system including an analog block and a digital block. The analog block and the digital block are arranged on a package. The package includes a first ground coupled to the analog block and a second ground coupled to the digital block. The second ground is physically separate from the first ground. The package also includes a noise-mitigation stitching connector that has a first end connected to the first ground and a second end connected to the second ground.

A metamaterial heat spreader includes a base, and a projection. The base is configured to be attached to a first surface of a heat generation component. The projection is continuous with and extends away from the base such that the projection is configured to be spaced apart from and overlap a second surface of the heat generation component. The projection is constituted by a metal with a periodic pattern. The projection is configured to have a high impedance surface (HIS).

An electromagnetic leakage prevention device includes a bottom surface, first side walls, second side walls, a first connecting portion, and a second connecting portion. The first side walls are coupled to a side of the bottom surface. The second side walls are coupled to a side of the bottom surface opposite the first side walls. The first connecting portion is coupled to ends of the first side walls away from the bottom surface. The second connecting portion is coupled to ends of the second side walls away from the bottom surface. A distance between the first side walls and the second side walls increases along a direction away from the bottom surface.

A ring shaped glass spacer is configured to be arranged in contact with a magnetic disk in a hard disk drive apparatus. A surface resistivity of a surface of a glass material of the glass spacer at 22 (° C.) is lower than a surface resistivity of an inner portion of the glass material at 22 (° C.).

A system including an analog block and a digital block. The analog block and the digital block are arranged on a package. The package includes a first ground coupled to the analog block and a second ground coupled to the digital block. The second ground is physically separate from the first ground. The package also includes a noise-mitigation stitching connector that has a first end connected to the first ground and a second end connected to the second ground.

The present disclosure generally relates to reducing radio frequency (RF) interference in data storage devices, including both hard disk drives (HDDs) and solid state drives (SSDs). RF signals penetrate data storage devices through gaps in the drive enclosure. By providing a conductive connection between a top plate and the base body, a reduction in RF signals penetrating into the interior of a data storage device such as an HDD or SSD and thus, RF interference is reduced.

A glass material of a glass spacer has a surface resistivity of 10.sup.3 to 10.sup.9 (Ω/sq) at 22 (° C.). The surface resistivity of a surface of the glass material of the glass spacer at 22 (° C.) is lower than the surface resistivity of an inner portion of the glass material at 22 (° C.). The glass spacer contains at least one oxide selected from the group consisting of TiO.sub.2, Nb.sub.2O.sub.5, WO.sub.3, and Bi.sub.2O.sub.3, as a glass component.

An electronic device which includes a cover, a base coupled to the cover to create an enclosure, a conductive layer positioned between the cover and the base and arranged to reduce radiation from entering the enclosure, and a gasket positioned between the cover and the base to create a seal and positioned between the conductive layer and the enclosure.