摘要:
A head gimbal assembly including a gimbal provided with a tongue comprising a stage; a sub-mount comprising a laser diode, wherein the laser diode is disposed internally in the sub-mount, and wherein the sub-mount is mounted on said stage; a head slider for thermally assisted recording, wherein the head slider is disposed on the sub-mount; a first piezoelectric element; a second piezoelectric element; and a plurality of lead wires.
摘要:
A process for fabricating a mold for an aspherical microlens having a desired aspherical and smooth surface, the lens having an effective diameter of 1 mm or smaller and a thickness of 0.5 mm or greater. A double-layer mask layer is formed on a single crystal silicon substrate, and anisotropic etching and isotropic etching are carried out using a first mask layer so as to form a concave portion that is a little smaller than the size of a desired microlens mold. Isotropic etching is then carried out using a second mask layer so as to enlarge the concave portion, thereby obtaining a microlens mold having desired dimensions.
摘要:
A head gimbal assembly including a gimbal provided with a tongue comprising a stage; a sub-mount comprising a laser diode, wherein the laser diode is disposed internally in the sub-mount, and wherein the sub-mount is mounted on said stage; a head slider for thermally assisted recording, wherein the head slider is disposed on the sub-mount; a first piezoelectric element; a second piezoelectric element; and a plurality of lead wires.
摘要:
A head support mechanism includes a head to write/read information, and a head support member to support the head. The head support member has parts delimiting an opening at a portion thereof in which opposing parts which delimit the opening in a width direction of the head support member are elastically deformable. Protrusions are formed on edges of the opening, and piezoelectric elements are mounted on the protrusions to enable deforming of the head support member in a direction of positioning of the head.
摘要:
In a magnetic head supporting apparatus having a second actuator for fine movement in addition to a first actuator having a voice coil motor for coarse movement, the second actuator is fixed so as to bridge the upper surface of a suspension and the upper surface of a suspension supporting member to support the suspension, and the second actuator is a plate-shaped structure which has two polarization regions separated by a non-polarized region and is formed by laminating piezoelectric flat plates in which the polarizing directions and the directions of electric fields to be applied are thickness directions. Thus, a magnetic disk apparatus which can be driven by a low voltage, a displacement in the vertical direction of the suspension is small, a productivity is high, and a recording density is high can be realized.
摘要:
Multilayer printed wiring boards superior in formation of an ultrafine wiring, which can form a conductive layer superior in peel strength on a flat insulating layer surface, can be prepared by a method including the following steps (A)-(E): (A) a step of laminating a film with a metal film, wherein a metal film layer is formed on a support layer, on an internal-layer circuit substrate via a curable resin composition layer, or laminating an adhesive film with a metal film, wherein a curable resin composition layer is formed on a metal film layer of the film with a metal film, on an internal-layer circuit substrate; (B) a step of curing a curable resin composition layer to form an insulating layer; (C) a step of removing a support layer; (D) a step of removing a metal film layer; and (E) a step of forming a metal film layer on an insulating layer surface by electroless plating.
摘要:
A magnetic head-positioning system to accurately test a magnetic disk and a magnetic head, comprises a plurality of hinges attached on an end portion of a linear driving element and disposed on both sides of a center line of the linear driving element, which is in parallel with an extension-shrinkage direction of the linear driving element, and an arm having a length longer than a distance between a plurality of hinge joint portions, the plurality of the hinge joint portions each of which join the hinge with a root portion of the arm and which are disposed on both sides of a center line of the arm which is in parallel with a longitudinal direction of the arm. The arm has an extremity portion on which a head gimbal assembly is detachably attached and this head gimbal assembly is positioned.
摘要:
A method of manufacturing an optical member by mixing isocyanate terminal prepolymer component (A) and aromatic diamine component (B), and immediately after mixing, casting a mixture into a casting mold to obtain a molded article. A method of manufacturing a plastic lens by mixing said components (A) and (B), immediately after mixing, casting a mixture into a casting mold and polymerizing it to obtain a molded article. A gasket for molding plastic lenses comprised of a cylindrical member. A casting mold for molding plastic lenses using this gasket and a monomer casting jig.
摘要:
A lever switch device, includes a lever main body rotatably supported by a body around a predetermined rotation center axis, a first remote shaft rotatably incorporated in the lever main body, and comprising a first operating knob at one end and a first operation portion at another end for operating an operational object by a rotational operation of the first operating knob, a second remote shaft rotatably arranged in the lever main body with a coaxial structure with the first remote shaft, and includes a second operating knob at one end and a second operation portion at another end for operating an operational object by a rotational operation of the second operating knob. Rotation centers of the first and second operation portions are provided on the rotation center axis of the lever main body.
摘要:
A production method of a multi-layer printed wiring board containing the following steps (1)-(5): (1) a temporary fitting preparatory step including conveying an adhesive sheet from an adhesive sheet roll wherein an adhesive sheet having a prepreg formed on a support film is wound in a roll and placing the adhesive sheet such that a prepreg surface contacts one or both of the surfaces of a circuit board, (2) a temporary fitting step for temporarily fitting the adhesive sheet to the circuit board, including partially adhering the adhesive sheet to the circuit board by heating and pressing a part of the adhesive sheet from the support film side, and cutting the adhesive sheet according to the size of the circuit board with a cutter, (3) a laminating step including heating and pressing the temporarily fitted adhesive sheet under reduced pressure to laminate the adhesive sheet on the circuit board, (4) a thermal curing step including forming an insulating layer by thermally curing the prepreg, and (5) a detaching step including detaching the support film after the thermal curing step, enables continuous production of an insulating layer of a multi-layer printed wiring board with a prepreg and without using a single wafer.