Terminal connection structure and terminal connection method for communication cable

A communication cable terminal connection method for connecting a terminal of a communication cable to a substrate, wherein the communication cable comprises a pair of conductors arranged in parallel and an insulator covering a periphery of the pair of conductors collectively, and wherein the substrate has signal electrodes to which the conductors are electrically connected, the communication cable terminal connection method comprising:

• a conductor exposure step of forming a conductor exposed portion by exposing the pair of conductors to a predetermined length from an end of the insulator in the communication cable;
• a connection portion shaping step of forming connection portions by shaping the conductors at the conductor exposed portions in such a manner that each connection portion has a width in an arrangement direction of the pair of conductors smaller than a height in a direction perpendicular to both the arrangement direction and a longitudinal direction of the conductors, while making a spacing between the connection portions larger than a spacing between the pair of conductors in a covered portion covered by the insulator;
• and
• a connection step of connecting the connection portions to the signal electrodes respectively by soldering or welding.