A connector assembly includes first and second connectors. Each connector includes a plurality of terminals A1 through An, n is an integer 2, sequentially arranged in a row. The connector assembly also includes a flat cable that includes a plurality of electrical conductors electrically connecting the terminals of the first and second connectors. For each i from 1 to n, terminal Ai of the first connector is electrically connected, via a different electrical conductor of the cable, to the terminal Ai of the second connector. The cable includes a bend greater than about 150 around at least two fold lines that extend across the entire width of the cable. Each of the first and second connectors is configured to mate with the same mating connector, such that when each of the first and second connectors mates with the same mating connector in a same plan view, the An terminals are both either on a left or a right side of the A1 terminals.

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated at least at a position opposite the terminal connecting area, wherein a shape of an end edge of the reinforcement member on the same side as an opposite end edge of the conductive pattern includes a periodic form constituted by curved lines.

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated at least at a position opposite the terminal connecting area, wherein a shape of an end edge of the reinforcement member on the same side as an opposite end edge of the conductive pattern includes a periodic form constituted by curved lines.

An optical module includes a conductor plate including a first through hole, a signal lead terminal fixed to the first through hole, and a wiring circuit board. The wiring circuit board includes a signal strip conductor member and a land on a first surface and a ground conductor layer and a second through hole on a second surface, the land surrounds the second through hole and is in contact with the signal strip conductor member, the signal lead terminal and the land are physically connected to each other through a solder and thus the signal lead terminal and the signal strip conductor member are electrically connected to each other, and at least a part of the land spreads outwardly, in a plan view, from not only a portion in contact with the signal strip conductor member but also an outer edge of the first through hole.

An optical module includes a conductor plate including a first through hole, a signal lead terminal fixed to the first through hole, and a wiring circuit board. The wiring circuit board includes a signal strip conductor member and a land on a first surface and a ground conductor layer and a second through hole on a second surface, the land surrounds the second through hole and is in contact with the signal strip conductor member, the signal lead terminal and the land are physically connected to each other through a solder and thus the signal lead terminal and the signal strip conductor member are electrically connected to each other, and at least a part of the land spreads outwardly, in a plan view, from not only a portion in contact with the signal strip conductor member but also an outer edge of the first through hole.

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated at least at a position opposite the terminal connecting area, wherein a shape of an end edge of the reinforcement member on the same side as an opposite end edge of the conductive pattern includes a periodic form constituted by curved lines.

A flexible printed circuit board according to one aspect of the present invention includes a base film having an insulating property and a conductive pattern laminated on one surface of the base film, and has a terminal connecting area toward one end edge of the conductive pattern, the flexible printed circuit board including a reinforcement member laminated on another surface of the base film and situated at least at a position opposite the terminal connecting area, wherein a shape of an end edge of the reinforcement member on the same side as an opposite end edge of the conductive pattern includes a periodic form constituted by curved lines.

A method for fusing an electrical conductor to a film pad circuit including the steps of: providing an electrically inert substrate having a first surface and an opposing second surface; applying an electrically conductive film to the second surface of the electrically inert substrate; applying an electrically conductive member to the electrically conductive film; placing an electrical conductor on the first surface of the electrically inert substrate; and fusing the electrical conductor to the conductive member.

A sheet type conductive member includes a flexible conductor formed of a conductive thread embroidered on or woven into a sheet body, the flexible conductor including a first end portion electrically connected to a wiring portion of a garment, a second end portion electrically connected to a contact, and a joint portion joining the first end portion and the second end portion together, an exposure area of the conductive thread per unit area in the first end portion and the second end portion being larger than an exposure area of the conductive thread per unit area in the joint portion.

A sheet type conductive member includes a flexible conductor formed of a conductive thread embroidered on or woven into a sheet body, the flexible conductor including a first end portion electrically connected to a wiring portion of a garment, a second end portion electrically connected to a contact, and a joint portion joining the first end portion and the second end portion together, an exposure area of the conductive thread per unit area in the first end portion and the second end portion being larger than an exposure area of the conductive thread per unit area in the joint portion.