A disk device includes magnetic disks, ramps, suspensions, and magnetic disks. The magnetic disks are arranged above a housing bottom and configured to be rotated around a first rotation axis. The ramps are arranged above the housing bottom. The suspensions are configured to be rotated around a second rotation axis parallel to the first rotation axis, The magnetic heads are mounted on the suspensions, respectively. Each of the suspensions is configured to be rotated around the second rotation axis from a first position above or below one of the magnetic disks to a second position on one of the ramps. The plurality of ramps includes a first ramp and a second ramp that is above the first ramp. An inner end of the second ramp is closer to the first rotation axis than is an inner end of the first ramp.

Embodiments of the present disclosure generally relate to housings for, e.g., memory devices and electronic devices, and to processes for forming such housings. In an embodiment, an article for housing at least a portion of an electronic device is provided. The article includes a first component comprising a thermoplastic and a biodegradable filler or polymer, and a second component disposed on at least a portion of the first component, the second component comprising a plurality of layers. The article has a scratch visibility load of about 200 gms or more, an electrostatic discharge static voltage of about 100 V or less, a thermal conductivity of about 0.28 W/mK or more, or combinations thereof.

A mechanical enclosure provides a mechanism for coupling a storage device to a computer system. The mechanical enclosure can be removably coupled to the computer system and can allow for coupling of the storage device to the computer system without using specialty cables and connectors. The mechanical enclosure can allow the storage device to be coupled to computer system without significantly degrading the speed at which the data stored within the storage device is downloaded onto the computer. The storage device can be inserted into the mechanical enclosure which couples the storage device to the mechanical enclosure. The mechanical enclosure can be inserted into the computer system which similarly couples the computer system to the mechanical enclosure to effectively couple the storage device and the computer system. Once the storage device is effectively coupled to the computer system, the data stored within the storage device can be downloaded onto the computer without the need for specialty cables and connectors.

A spindle motor configured to be used for a hard disk drive device with a gas having a density lower than a density of air sealed in an internal space includes a rotor magnet. The rotor magnet has a radial thickness of 1.0 to 1.4 mm and a density of 5.6 to 6.0 g/cm.sup.3.

A disk device includes a magnetic disk, a magnetic head, a flexible printed circuit board, an electronic component, and a wall. The flexible printed circuit board is electrically connected to the magnetic head. The electronic component is mounted on the flexible printed circuit board. The wall has rigidity higher than the flexible printed circuit board and is attached to the flexible printed circuit board. The flexible printed circuit board with a first through hole includes a first surface facing the electronic component with a gap, and a second surface opposite the first surface and facing the wall, the first through hole being open to the first surface and the second surface to communicate with the gap. The wall is provided with a second through hole penetrating the wall to communicate with the first through hole.

An electronic device with a storage function is provided. The electronic device includes a main connection bolt and a housing. The housing includes a first housing member and a second housing member. The first housing member includes two hooks and a fastening portion. The second housing member includes two wedging portions and a fastening base. The hooks are wedged into the wedging portions to restrict the freedom of the first housing member to move relative to the second housing member in a first direction. The main connection bolt connects the fastening portion to the fastening base in a second direction to restrict the freedom of the first housing member to move relative to the second housing member in the first direction. The first direction is perpendicular to the second direction.

A flexure of a disk drive suspension includes a metal base, and a wiring portion provided along the metal base. The wiring portion includes a base insulating layer, a conductor layer overlapping with the base insulating layer, and a cover insulating layer overlapping with the conductor layer, and the metal base includes a pair of first portions having side surfaces opposed to each other. At least one of the base insulating layer and the cover insulating layer is in contact with the side surfaces between the pair of first portions, and the conductor layer does not overlap with the metal base in a direction of stacking the wiring portion

A base member serving as a part of a housing of a hard disk drive device. The base member includes a base body being a cast product, a machined surface obtained by machining a part of the base body at a side of an interior of the housing, an impregnating agent filled into a casting cavity exposed at the machined surface, and a coating film covering a surface including the machined surface of the base body.

A method for designing an enclosure by predicting hard drive disk (HDD) performance in an experimental enclosure, where the enclosure is a modified version of the experimental enclosure. The method includes obtaining, by an HDD performance data generator, an experimental enclosure vibration dataset from a vibration measurement apparatus, obtaining an ideal HDD vibration threshold; making a first comparison between the experimental enclosure vibration dataset and the ideal HDD vibration threshold, calculating, based on the first comparison, an experimental enclosure HDD performance dataset, making a first determination that the experimental enclosure HDD performance dataset exceeds an acceptable threshold, and performing a design action on the experimental enclosure based on the first determination to generate a design of the enclosure.

A base plate is a portion of a housing of a disk drive apparatus, including a base body being a casting product, and an electrodeposition coating film covering at least a portion of a surface of the base body. The base body includes a bottom plate rectangular as viewed from an axial direction, a pivot post, and a protrusion. The bottom plate extends perpendicular to a rotation axis of a disk that extends vertically and a swing axis of a head that is disposed in a different position from the rotation axis and that extends vertically. The head reads or writes information from or to the disk. The pivot post protrudes upward from an upper surface of the bottom plate along the swing axis. The protrusion is provided protruding radially outward from a peripheral surface of the pivot post and protruding to the upper surface of the bottom plate.