Touch sensor, electronic device, and method of producing touch sensor

A touch sensor having a plurality of sensor electrodes and a plurality of wires on a substrate film, the touch sensor comprising:

• a body including a three-dimensionally shaped input detection portion in which the sensor electrodes are arranged;
• and
• a tail projecting from the body and having a terminal to connect the wires to a connection target,
• wherein the terminal has a terminal protective layer protecting the wires, and
• wherein the substrate film includes a part T1 having a thickness t1 located within the terminal and a flat part T0 having a maximum thickness other than the part T1, and a difference between the thickness t1 and a thickness t0 at any position of the flat part T0 is less than or equal to 10%.

A method of producing a touch sensor, the method comprising:

• a first step of forming, on a flat substrate film, a plurality of sensor electrodes, a plurality of wires extending from the sensor electrodes, and a terminal protective layer protecting the wires;
• a second step of affixing an inextensible film to an area including at least a terminal provided on the substrate film, the terminal being configured to connect the wires to a connection target;
• and
• a third step of three-dimensionally forming a portion of the substrate film into a three-dimensionally shaped input detection portion having the sensor electrodes.