Abstract: A wired circuit board having terminals that can provide reliable placement of molten metals on the terminals, to connect between the terminals and the external terminals with a high degree of precision. An insulating base layer 3 is formed on a supporting board 2, and a conductive pattern 4 is formed on the insulating base layer 3 so that a number of lines of wire 4a, 4b, 4c, 4d, magnetic head connecting terminals 7, and external connecting terminals 8 are integrally formed and also first through holes 9 are formed in the external connecting terminals 8. Thereafter, after an insulating cover layer 10 is formed, third through holes 20 and second through holes 19 are formed in the supporting board 2 and in the insulating base layer 3, respectively, to communicate with the first through holes 9.

Abstract: A wired circuit board having terminals that can ensure large electrical connection areas while preventing shorting of adjacent terminals, to ensure that the terminals are electrically connected with external terminals through molten metal. An insulating base layer 3 is formed on a supporting board 2 so that insulating concave portions 13 are formed at portions thereof where external connecting terminals 8 are to be formed. A conductive pattern 4 is formed on the insulating base layer 3 so that a number of lines of wire 4a, 4b, 4c, 4d, the magnetic head connecting terminals 7, and the external connecting portions 8 are integrally formed, and conductive concave portions 9 are formed in the external connecting terminals 8. Thereafter, an insulating cover layer 10 is formed on the insulating base layer 3 so that the magnetic head connecting terminals 7 and the external connecting terminals 8 are exposed from the insulating cover layer 10.

Abstract: A stepped-part 4b with a lower tip side is formed on the top face of a pattern end 4, and a lower face 4c thereof is used as a plane on which a solder ball 7 is provided. One or more protrusions 4d made of a swollen conductive layer are formed on the lower face to limit displacement of the solder ball in the tip direction and the both side directions. The solder ball is held by the protrusions to suppress deviation of the solder ball.

Abstract: The present invention provides a flexible printed circuit board having a band-like meandering pattern as a whole, which includes multiple linear parts configured about parallel to each other and a folding margin connected to one end in a longitudinal direction of two adjacent linear parts of the multiple linear parts, and which can turn into a single linear product having a total length of not less than 300 mm when the folding margin is double-folded at about a center thereof, and, at the folding margin, either of the two linear parts connected to the folding margin is folded back in a direction opposite by 180 degrees. As a result, a flexible printed circuit board for a catheter, which is sufficiently elongate for use as a signal line of a catheter, can be produced using a general-purpose production apparatus.

Abstract: The present invention provides a partially completed wiring circuit board assembly sheet capable of preventing deposition of a plating metal on the surface of a metal sheet, even when pinholes are produced in an insulating layer for insulating a lead wire for electroplating from a metal sheet. The assembly sheet 100 of the present invention has a metal sheet 1, multiple wiring circuit board forming area 1A in compartments on the metal sheet and area 1B for forming a lead wire for electroplating, which is in compartment on the metal sheet 1. Each area 1A has a partially completed wiring circuit board 10. The partially completed wiring circuit board 10 is equipped with a base insulating layer 2, a wiring pattern 3 and a cover insulating layer 4. In the area 1B, a first insulating layer 12, a lead wire 13 for electroplating and a second insulating layer 14 are laminated in this order. Of the metal sheet 1, an opening 16 is formed in the part under the lead wire 13.

Abstract: There is provided a wired circuit board assembly that prevents breakage of the flexing portion of a wired circuit board supported by a support frame. In a wired circuit board support sheet, a plurality of wired circuit boards include a base insulating layer, a conductor pattern, and a cover insulating layer which are formed on a support board are supported by a support frame in such a manner that they are arranged and aligned in mutually spaced relation. Each of the wired circuit boards has a flexing portion formed by removing the support board to obtain a flexing property. In addition, second connecting portions are provided in spanning relation between the flexing portion and the vertical frame parts of the support frame.

Abstract: A wired circuit board prevents a sealing resin filled in an electronic component mounting portion from overflowing and spreading to a different area other than the electronic component mounting portion. An electronic component placing area is provided in the electronic component mounting portion for the electronic component to be placed and terminals are located within the electronic component placing area and formed to extend continuously with the conductive wires. Also, a groove extending around the electronic component mounting portion to intersect with the conductive wires is formed in the insulating cover layer. Further, protrusions protruding in a direction of the conductive wires being extended in the groove are formed at an intersecting portion thereof with the conductive wires. This can reduce a tendency of the overly filled sealing resin to flow over the groove, thus preventing the spread of the sealing resin from the groove to the outside thereof.

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 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: A wired circuit board prevents a sealing resin filled in an electronic component mounting portion from overflowing and spreading to a different area other than the electronic component mounting portion. An electronic component placing area is provided in the electronic component mounting portion for the electronic component to be placed and terminals are located within the electronic component placing area and formed to extend continuously with the conductive wires. Also, a groove extending around the electronic component mounting portion to intersect with the conductive wires is formed in the insulating cover layer. Further, protrusions protruding in a direction of the conductive wires being extended in the groove are formed at an intersecting portion thereof with the conductive wires. This can reduce a tendency of the overly filled sealing resin to flow over the groove, thus preventing the spread of the sealing resin from the groove to the outside thereof.

Abstract: The present invention provides a flexible printed circuit board 100 having a band-like meander pattern as a whole, which includes multiple linear parts 1 configured in about parallel to each other and a folding margin connected to one end in the longitudinal direction of two adjacent linear parts of the multiple linear parts, and which can turn into a single linear product having a total length of not less than 300 mm when the folding margin 2 is double-folded at the about center thereof, and, at the folding margin 2, either of the two linear parts 1 connected to the folding margin 2 is folded back in the direction opposite by 180 degrees. As a result, a flexible printed circuit board for a catheter, which is sufficiently elongate for use as a signal line of a catheter, can be produced using a general-purpose production apparatus, which improves the degree of freedom of movement in a tube.

Abstract: A wired circuit board having terminals that can ensure large electrical connection areas while preventing shorting of adjacent terminals, to ensure that the terminals are electrically connected with external terminals through molten metal. An insulating base layer 3 is formed on a supporting board 2 so that insulating concave portions 13 are formed at portions thereof where external connecting terminals 8 are to be formed. A conductive pattern 4 is formed on the insulating base layer 3 so that a number of lines of wire 4a, 4b, 4c, 4d, the magnetic head connecting terminals 7, and the external connecting portions 8 are integrally formed, and conductive concave portions 9 are formed in the external connecting terminals 8. Thereafter, an insulating cover layer 10 is formed on the insulating base layer 3 so that the magnetic head connecting terminals 7 and the external connecting terminals 8 are exposed from the insulating cover layer 10.