According to one embodiment, a head suspension assembly includes a base plate including a first main surface, a second main surface opposing the first main surface, a distal end portion and a recess formed in the distal end portion on a side of the first main surface, a load beam including a proximal end portion disposed in the recess and fixed to a bottom surface of the recess and extending from the base plate, a wiring member disposed on the first main surface of the base plate and the load beam and a magnetic head supported by the load beam via the wiring member.

A test coupon includes a pseudo element circuit which is constituted of a main circuit section and an adjusting section. The main circuit section includes a first pattern conductor and second pattern conductors. The first pattern conductor and the second pattern conductors overlap one another with a dielectric layer interposed therebetween. The first pattern conductor electrically conducts to the second pattern conductors. The main circuit section represents the R-component and the L-component of an equivalent circuit, and is a dominant circuit element which determines a signal waveform. The adjusting section includes linear conductors. A peak of a voltage waveform is suppressed by the R- and L-components of the adjusting section.

Aspects of the present disclosure generally relate to a magnetic recording head that includes a main pole, a leading shield, a first side shield disposed on a first side of the main pole, a second side shield disposed on a second side of the main pole, and a trailing shield. The trailing shield is disposed on a trailing side of the main pole. One or more approaches are disclosed to control return-fluxes. In some embodiments, at least one of the upper return pole, the leading shield, the trailing shield, the first side shield, and the second side shield includes a laminate structure having at least a pair of ferromagnetic layers, and a non-magnetic spacer layer disposed between adjacent ferromagnetic layers. In some embodiments, one or more shunts are positioned, such as connecting the leading shield to the upper return pole in order to create circuits to control magnetic flux.

According to one embodiment, a head suspension assembly comprises a structure which prevents a lubricant to be used for a caulking portion of an actuator arm from spreading.

A data storage device can have a suspension with a loadbeam. The loadbeam can be configured with one or more a stiffening features. The loadbeam and stiffening feature may be constructed as products of a single piece of material. The stiffening feature can be defined by a varying thickness of the loadbeam.

An apparatus comprises a heat-assisted magnetic recording drive which includes an enclosure having a base and a cover. The drive includes a magnetic recording disk and a head gimbal assembly proximate one of the base and the cover. The HGA supports a slider assembly comprising a laser diode unit. The LDU projects away from the HGA towards one of the base and the cover. An arcuate channel is provided in one of the base and the cover and dimensioned to receive a distal portion of the LDU. The channel has a length that accommodates the distal portion of the LDU along a stroke of the HGA.

In a suspension board, a ground layer and a first insulating layer are formed on a support substrate. The ground layer has electric conductivity higher than that of the support substrate. A power wiring trace is formed on the first insulating layer. A second insulating layer is formed on the support substrate to cover the ground layer and the first insulating layer. A write wiring trace is formed on the second insulating layer to at least partially overlap with the ground layer. A distance between the ground layer and the write wiring trace in a stacking direction of the support substrate, the first insulating layer and the second insulating layer is set larger than a distance between the power wiring trace and the write wiring trace in the stacking direction.

Provided is a wiring thin plate capable of suppressing deterioration of an electric characteristic and variation in thickness of an aerial wiring portion while advancing reduction of rigidity of the aerial wiring portion. The wiring thin plate includes an aerial wiring portion including wiring traces and passing over an airspace, aerial base layers provided at the respective wiring traces in the aerial wiring portion and being apart from each other, and an aerial cover layer provided in the aerial wiring portion and spanning from the wiring traces of the aerial wiring portion through the aerial base layers to interspaces between adjacent aerial base layers of said aerial base layers.

A hard disk drive suspension includes a suspension tail configured to electrically connect to a read-write transducer at a distal end and extending in a proximal direction toward a tapered tip at a proximal end, where the tapered tip comprises a decreasing taper that narrows in the proximal direction. Hence, structural overlap among adjacent suspension tails in misalignment scenarios and consequent marginalized electrical connections between the suspension tail and a corresponding flexible printed circuit are inhibited. The most proximal electrical pads of the suspension tail may be configured with a different aspect ratio, or in a fewer number of lines, from other adjacent electrical pads, thereby fitting within the narrowest portion of the tapered tip.

A suspension board with circuit includes a first terminal and a second terminal disposed at spaced intervals to each other, a piezoelectric element disposed between the first terminal and the second terminal so as to be electrically connected to the first terminal and the second terminal, a facing portion facing the piezoelectric element at the second terminal-side relative to the center between the first terminal and the second terminal, and a compensation portion compensating a degree of inclination of the piezoelectric element produced at the time of contact of the facing portion with the piezoelectric element at the first terminal-side relative to the center between the first terminal and the second terminal.