Abstract: A gas replenishment component for an electronic enclosure is described. A main body defines a containment volume. The main body is sealed about the containment volume. A charging gas is contained in the containment volume. The containment volume has less than 5% N2. The main body defines a diffusive area that is permeable to the gas. A reversible seal obstructs the diffusive area.

Abstract: The present disclosure generally relates to a magnetic recording head comprising a spintronic device. By electrically coupling the side shielding of the head (acting as current leads) to the spin Hall layer of the spintronic device, the current path length is optimally provided across the spin Hall layer as well as fitting within the space constraints of the overall head. In addition, by using an antiferromagnetic insulator as a spacer between the spin Hall layer and the magnetic spin torque layer of the spintronic device, electrically shunting into the magnetic spin torque layer is reduced, maximizing the spin torque and reducing loss of efficiency due to shunting. Thus, the magnetic recording head may utilize the energy assistance from the spintronic device without reducing the quality and reliability of the write head by running an undesirable current through critical components of the write head.

Abstract: According to one embodiment, a disk device includes a plurality of recording media each including a recording layer and an actuator assembly including an actuator block rotatably supported around a rotation shaft, a plurality of arms extending from the actuator block, and suspension assemblies respectively attached to the arms and supporting respective magnetic heads. Of the plurality of arms, at least one arm has vibration characteristics different from those of the other arms.

Abstract: The present disclosure generally relates to a head assembly in a data storage device. The data storage device may include magnetic media embedded in the device or magnetic media from an insertable cassette or cartridge (e.g., in an LTO drive), where the head assembly reads from and writes to the magnetic media. During device operation, the magnetic media moves across the head assembly. The magnetic media experiences higher contact stress at certain points or portions of the head assembly. A sensor guard is coupled to the head assembly. The sensor guard comprises at least one chamfered surface or at least one stepped surface to decrease the contact stress between the magnetic media and the head assembly during device operation. The at least one chamfered or stepped surface may be disposed on a leading edge of the sensor guard.

Abstract: A magnetoresistance effect element includes: a first ferromagnetic layer; a second ferromagnetic layer; and a non-magnetic layer provided between the first ferromagnetic layer and the second ferromagnetic layer, wherein at least one of the first ferromagnetic layer and the second ferromagnetic layer includes a first layer and a second layer in order from the side closer to the non-magnetic layer, the first layer contains a crystallized Co-based Heusler alloy, at least a part of the second layer is crystallized, the second layer contains a ferromagnetic element, boron element and an additive element, and the additive element is any element selected from a group consisting of Ti, V, Cr, Cu, Zn, Zr, Mo, Ru, Pd, Ta, W, Ir, Pt, and Au.

Abstract: Systems and methods, e.g., optical apparatuses, for digital optical information storage systems that improve the speed, signal to noise, controllability, and data storage density for fluorescent and reflective multilayer optical data storage media. The systems and methods include an optical system for a reading beam of a data channel from a moving single or multi-layer or otherwise 3-dimensional optical information storage medium that comprises at least one optical element characterized by restricting the field of view (FOV) of the reading beam on an associated image plane to 0.3 to 2 Airy disk diameters in a first direction.

Abstract: The present disclosure generally relates to a storage device comprising soft bias structures having high coercivity and high anisotropy, and a method of forming thereof. The soft bias structures may be formed by moving a wafer in a first direction under a plume of NiFe to deposit a first NiFe layer at a first angle, moving the wafer in a second direction anti-parallel to the first direction to deposit a second NiFe layer at a second angle on the first NiFe layer, and repeating one or more times. The soft bias structures may be formed by rotating a wafer to a first position, depositing a first NiFe layer at a first angle, rotating the wafer to a second position, depositing a second NiFe layer at a second angle on the first NiFe layer, and repeating one or more times. The first and second NiFe layers have different grain structures.

Abstract: A trace gimbal is described herein. In some embodiments, the trace gimbal includes outer struts including a front outrigger at a distal end of the trace gimbal and a rear outrigger at a proximal end of the trace gimbal. The front outrigger includes a distal front outrigger and a proximal front outrigger. The rear outrigger includes a distal rear outrigger and a proximal rear outrigger. A middle strut extends in a width direction of the trace gimbal, adjoining the proximal front outrigger to the rear outrigger, and connecting to a slider tongue. The front outrigger includes a strut form bent away from a load beam reference plane at an angle ?. In some embodiments, the outer struts include a second strut form disposed on the rear outrigger. The second strut form can be bent toward the load beam reference plane at the angle ?.

Abstract: According to one embodiment, a magnetic head includes a slider including an air bearing surface which includes a plurality of uppermost surfaces each constituting a pressure generating surface and a plurality of other surfaces different in height from the uppermost surfaces, an inflow end, and an outflow end, and a head portion provided at the outflow end. The air bearing surface includes a negative pressure generating groove, a leading pad having the uppermost surface, and a trailing pad having the uppermost surface. The uppermost surface in a region between a tip portion of the trailing pad and the outflow end includes only the trailing pad.

Abstract: Provided is an optical disc drive that can implement a conveying roller position manipulation mechanism, a centering mechanism, and a chucking pulley operation mechanism, while allowing the number of components to be reduced. A base frame includes a spindle motor and an optical element. An inner case houses the base frame, and supports a conveying mechanism configured to convey an optical disc to the position of the spindle motor. An outer case houses the inner case. The base frame is fixed in the inner case via a first damper, and the inner case is fixed in the outer case via a second damper.

Abstract: Provided is a glass for a magnetic recording medium substrate or for a glass spacer for a magnetic recording/reproducing apparatus, in which the total content of Li2O, Na2O, K2O, B2O3, and ZnO (Li2O+Na2O+K2O+B2O3+ZnO) is in a range of 0 mol % or more and 3 mol % or less, the mole ratio of the total content of Al2O3 and MgO relative to the total content of SiO2 and CaO [(Al2O3+MgO)/(SiO2+CaO)] is in a range of 0.30 or more and 0.6 or less, the total content of SiO2 and Al2O3 (SiO2+Al2O3) is in a range of 64 mol % or more and 85 mol % or less, and the total content of SiO2, Al2O3, MgO, and CaO (SiO2+Al2O3+MgO+CaO) is in a range of 87 mol % or more and 98 mol % or less.

Abstract: A data storage chassis includes a plurality of data storage cartridges, and printed circuit board assembly (PCBA) electronics selectively connectable to one or more of the plurality of data storage cartridges. The data storage chassis also includes a wireless interface controller communicatively coupled to the PCBA electronics. The wireless interface controller facilitates wireless communication of data between the data storage chassis and a host using at least one frequency in a range of frequencies including fifth-generation (5G), millimeter, and sub-millimeter frequency ranges.

Abstract: A dielectric layer configured to overlay a spring metal layer in a suspension assembly is described. The dielectric layer includes a tongue portion including a proximate end and a distal end, trace portions extending from the tongue portion, and an aperture aligned with the void and defined by the tongue portion. The aperture includes an elongated opening with opposing ends partially aligning with the central opening of the void. The aperture further includes slits extending from the opposing ends of the elongated opening and at least partially aligned with slits of the void in the spring metal layer.

Abstract: Provided are a tape guide roller and tape drive having a guide roller having magnets and bushings to stabilize a roller barrel for a tape medium. The tape guide roller has a roller barrel extending around a vertical axis. The tape medium passes across the roller barrel to guide the tape medium on a tape path. A plurality of magnets positioned with respect to the vertical axis provide an axial force to stabilize the tape guide roller axially.

Abstract: The present disclosure generally relates to a tape head and a tape head drive including a tape head. The tape head comprises at least one same gap verify (SGV) module comprising a closure, a substrate, and a plurality of write transducer and read transducer pairs disposed between the substrate and the closure. The write transducer and the read transducer of each pair are aligned in a first direction and spaced a distance in the downtrack direction of about 5 ?m to about 20 ?m. A first overcoat is disposed over each write transducer at a media facing surface (MFS), and a second overcoat is disposed over each read transducer at the MFS. The first and second overcoats may comprise different materials, and are deposited during different processes.

Abstract: There is provided an optical disc drive that can maintain contact between an optical disc and a conveying roller, while allowing the number of components to be reduced. A conveying roller includes a right roller that is rotatable around an axis and a left roller that is rotatable around an axis. The right roller portion and the left roller portion are arranged in a lateral direction. One of a right end portion of the right roller portion and a left end portion of the left roller portion is movable in an up-down direction relative to the other of the right end portion of the right roller portion and the left end portion of the left roller portion, with a relative position between the axis and the axis unchanged.

Abstract: A conveying roller position manipulation mechanism moves the position of a conveying roller between a first roller position where the conveying roller contacts an optical disc and a second roller position where the conveying roller is separated from the optical disc. A centering mechanism aligns the center of the optical disc with the position of a spindle motor. A chucking pulley operation mechanism manipulates the position of a chucking pulley configured to fix the optical disc to the spindle motor. The conveying roller position manipulation mechanism includes a rotary arm configured to move in response to a collision with the optical disc that approaches the position of the spindle motor, and at least one of the centering mechanism and the chucking pulley operation mechanism includes a member coupled to the rotary arm.

Abstract: According to one embodiment, in a magnetic disk, a plurality of first servo sectors is arranged at intervals in the circumferential direction. Each of the plurality of first servo sectors includes a first area and a second area. First information including a preamble, a servo mark, and a Gray code is written in the first area. The second area is disposed after the first area in a write and read direction along the circumferential direction, and second information including a burst pattern is written in the second area. The plurality of first servo sectors includes a plurality of second servo sectors and a plurality of third servo sectors. The circumferential length of a first area included in each of the plurality of third servo sectors is longer than the circumferential length of a first area included in each of the plurality of second servo sectors.

Abstract: Embodiments of the present invention provide a system, method, and computer program product for offsetting a reading head on a magnetic tape to improve verification. A processor determines a write head width, a read head width, and a track pitch based on determining an LTO standard of the magnetic tape. The processor determines a distance of the reading head from a writing head using the write head width, the read head width, and the track pitch, and causes a tape appliance to relocate the read head on the magnetic tape to the determined distance.

Abstract: According to one embodiment, a disk device includes rotatable magnetic disks, a first actuator assembly rotatably supported on a pivot through a first bearing unit, a second actuator assembly rotatably supported on the pivot through a second bearing unit and provided side by side with the first actuator assembly in an axial direction of the pivot, and a filter unit provided between the magnetic disks and the first and second actuator assemblies. The filter unit includes a holder including a shielding portion facing a boundary portion between the first actuator assembly and the second actuator assembly and a ventilation opening provided at a position spaced apart from the boundary portion in the axial direction, and a filter held by the holder and facing the ventilation opening.