Abstract: A suspension board with circuit includes a conductive pattern, including a slider arranged on a surface side of the suspension board with circuit and mounted with a magnetic head, the magnetic head being electrically connected with the conductive pattern; and a light emitting device arranged on the back surface side of the suspension board with circuit and electrically connected with the conductive pattern, in which the conductive pattern includes a first terminal provided on a surface of the suspension board with circuit and electrically connected with the magnetic head; and a second terminal provided on the back surface of the suspension board with circuit and electrically connected with the light emitting device.

Abstract: A suspension board with circuit includes a metal supporting board, a conductive layer laminated on the metal supporting board, and a via layer interposed between the metal supporting board and the conductive layer. The conductive layer includes a conductive pattern, and a reference portion serving as a positioning reference for placing the suspension board with circuit on a load beam.

Abstract: A wired circuit board includes a wiring formation portion, a terminal formation portion, and a middle portion formed therebetween. The wiring formation portion includes a first conductive layer formed on a first insulating layer, and a second conductive layer formed on a second insulating layer so as to overlap the first conductive layer in a thickness direction. The terminal formation portion includes the first and second conductive layers formed in parallel in the same plane. The middle portion includes the first conductive layer formed on the first insulating layer, and the second conductive layer formed on a portion of the second insulating layer extending from the wiring formation portion to a mid-point between the wiring formation portion and the terminal formation portion, and formed on a portion of the first insulating layer extending from the mid-point to the terminal formation portion.

Abstract: A wired-circuit-board assembly sheet is provided having removable portions that are easily removable without any generation of metal powder. The wired-circuit-board assembly sheet comprises a plurality of suspension boards with circuits, distinguishing marks for distinguishing defectiveness of the suspension boards with circuits, and a supporting sheet for supporting the suspension boards with circuits and the distinguishing marks, wherein openings are formed in the supporting sheet, and removable portions which are to be removed when the suspension boards with circuits are judged defective are located in the openings and also supported by the supporting sheet via joint portions formed of resin.

Abstract: The present invention provides a catheter 100 having a structure wherein an electronic component 2 is mounted on the anterior end or an intermediate part of a tube 1, a signal line electrically connecting to the electronic component 2 extends from the vicinity of the electronic component 2 through the aforementioned tube 1 to the posterior end of the aforementioned tube 1, which is characterized in that the signal line consists of a wiring pattern 4 of the flexible printed circuit board 10 inserted in the tube 1. Consequently, an electronic component-loaded catheter can control increase in the size of the tube caused by multiple signal lines to be connected to the electronic component.

Abstract: A method for producing a wired circuit board includes the steps of integrally forming a conductive pattern, a plating lead electrically connected with the conductive pattern, and a regulation portion provided in the plating lead to regulate penetration of an etchant into the conductive pattern; and etching the plating lead with the etchant while the regulation portion regulates the penetration of the etchant into the conductive pattern.

Abstract: A wired circuit board assembly sheet has a plurality of wired circuit boards, distinguishing marks for distinguishing defectiveness of the wired circuit boards, and a supporting sheet for supporting the plurality of wired circuit boards and the distinguishing marks. Each of the distinguishing marks has an indication portion for indicating a specified one of the wired circuit boards.

Abstract: A wired circuit board assembly sheet having a plurality of wired circuit boards, distinguishing marks for distinguishing defectiveness of the wired circuit boards, and a supporting sheet for supporting the plurality of wired circuit boards and the distinguishing marks. Each of the distinguishing marks has an indication portion for indicating a specified wired circuit board.

Abstract: A wired circuit board includes a first insulating layer; a first wire formed on the first insulating layer; a second insulating layer formed on the first insulating layer so as to cover the first wire; and a second wire formed on the second insulating layer so as to be arranged in opposed relation to the first wire in a thickness direction. The thickness of the first wire is 1 ?m or less and is ? or less of the thickness of the second insulating layer.

Abstract: A wired circuit board includes a wiring formation portion, a terminal formation portion, and a middle portion formed therebetween. The wiring formation portion includes a first conductive layer formed on a first insulating layer, and a second conductive layer formed on a second insulating layer so as to overlap the first conductive layer in a thickness direction. The terminal formation portion includes the first and second conductive layers formed in parallel in the same plane. The middle portion includes the first conductive layer formed on the first insulating layer, and the second conductive layer formed on a portion of the second insulating layer extending from the wiring formation portion to a mid-point between the wiring formation portion and the terminal formation portion, and formed on a portion of the first insulating layer extending from the mid-point to the terminal formation portion.

Abstract: A suspension board with circuit that can allow precise adjustment of flotation (flotation angle) of even a small-sized slider to a magnetic disc even when the outrigger portions are reduced in rigidity. A gimbal portion of the suspension board with circuit is formed by a tongue portion for mounting a magnetic head thereon, and outrigger portions provided at both sides of the tongue portion, and an opening is formed in the insulating cover layer 5 so that the conductor layer can be exposed therefrom in the outrigger portions. This can allow reduction in rigidity of the outrigger portions, and as such can allow precise adjustment of flotation (flotation angle) of the slider to the magnetic disc even when a small-sized slider is mounted on the gimbal portion.

Abstract: A suspension board with circuit includes a metal supporting board, an insulating layer formed on the metal supporting board, a conductive layer formed on the insulating layer, and a pedestal for supporting a slider. The pedestal includes a lower pedestal made of the insulating layer, and formed in a continuous frame shape so as to surround a bonding surface of the metal supporting board to the slider, and an upper pedestal made of the conductive layer, and formed in a discontinuous frame shape on the lower pedestal.

Abstract: An area 5 for mounting a magnetic head is formed on a metal board 1, a conductive layer 4 is formed as a circuit pattern via an insulation layer 2 interposed outside this area and up to a metal board 1. A pattern end 4 to be a connection terminal for connection with the terminal of the magnetic head is formed on the circuit pattern, an end face 4a of the pattern end 4 is aligned with an end face 2a of the insulation layer 2 directly beneath it or protruded in the terminating direction from the end face 2a, thereby providing a structure preventing irradiation of a laser beam on the insulation layer 2.

Abstract: A suspension board with circuit includes a slider mounting portion provided with three pedestals arranged in mutually spaced apart relation for supporting a slider on which a magnetic head is mounted.

Abstract: A wired circuit board includes a first insulating layer, a first wire formed on the first insulating layer, a second insulating layer formed on the first insulating layer so as to cover the first wire, and a second wire placed opposite to the first wire in a thickness direction and formed in a smaller width than that of the first wire.

Abstract: A wired circuit board that can prevent inconsistency in characteristic impedance to allow effective transmission of electrical signals from a magnetic head to a control board portion. A wired circuit board is constructed so that a suspension board portion for supporting the magnetic head and a control board portion for controlling the magnetic head are formed to be continuous and integral with each other. To be more specific, a first conductor layer connected to the magnetic head in the suspension board portion and a second conductor layer connected to a preamplifier IC in the control board portion are formed from the same material and formed on a common insulating base layer simultaneously. Further, a common insulating cover layer to cover the first conductor layer and the second conductor layer is formed on the common insulating base layer.