Flexible wiring board, manufacturing method, electronic module, electronic unit, and electronic apparatus

A flexible wiring board comprising:

• a signal line that transmits a signal;
• and
• an electroconductive layer that is disposed to face the signal line,
• wherein the electroconductive layer includes
• a first portion in which a plurality of openings are provided, and
• a linear second portion that is formed in at least one of the plurality of openings, that has, at one end thereof, a connection portion connected to the first portion, and whose other end is an open end,
• wherein the connection portion is disposed in the linear second portion on a sending side in a transmission direction of a signal through the signal line, and
• wherein an angle between a direction along the transmission direction of the signal and an extension direction of the linear second portion from the connection portion toward the open end is an acute angle or an obtuse angle,
• wherein the linear second portion includes a plurality of second portions that are disposed in at least one of the plurality of openings.

An electronic module comprising:

• a flexible wiring board;
• a rigid wiring board to which one end portion of the flexible wiring board is connected;
• and
• an electronic component mounted on the rigid wiring board,
• wherein the flexible wiring board comprising:
• a signal line that transmits a signal;
• and
• an electroconductive layer that is disposed to face the signal line,
• wherein the electroconductive layer includes
• a first portion in which a plurality of openings are provided, and
• a linear second portion that is formed in at least one of the plurality of openings, that has, at one end thereof, a connection portion connected to the first portion, and whose other end is an open end,
• wherein the connection portion is disposed in the linear second portion on a sending side in a transmission direction of a signal through the signal line, and
• wherein an angle between a direction along the transmission direction of the signal and an extension direction of the linear second portion from the connection portion toward the open end is an acute angle or an obtuse angle.