Electrical element, mobile device, and method for manufacturing electrical element

A mobile device comprising:

• an electrical element including:
• a flexible substrate;
• and
• a rigid member greater than the flexible substrate in thickness and in rigidity;
• wherein
• at least one of the flexible substrate and the rigid member is made of thermoplastic resin;
• a conductor pattern that defines at least a portion of a section that performs a main function of the electrical element is provided at the flexible substrate;
• no conductor pattern that defines the section that performs the main function of the electrical element is provided at the rigid member;
• opposing surfaces of the flexible substrate and the rigid member are directly joined to each other;
• and
• the electrical element is in contact with a member inside the mobile device via the rigid member, and the member inside the mobile device includes a metal member.

An electrical element comprising:

• a flexible substrate;
• and
• a rigid member greater than the flexible substrate in thickness and in rigidity;
• wherein
• at least one of the flexible substrate and the rigid member is made of thermoplastic resin;
• a conductor pattern that defines at least a portion of a section that performs a main function of the electrical element is provided at the flexible substrate;
• no conductor pattern that defines the section that performs the main function of the electrical element is provided at the rigid member;
• opposing surfaces of the flexible substrate and the rigid member are directly joined to each other;
• the conductor pattern provided at the flexible substrate defines at least a portion of a high-frequency circuit that performs the main function;
• the high-frequency circuit is an antenna circuit;
• the rigid member includes a first surface joined to the flexible substrate and a second surface opposite to the first surface;
• a ground conductor is disposed on substantially an entirety of the second surface of the rigid member;
• and
• a lead-out wiring extends from the ground conductor to the first surface of the rigid member and connects to the antenna circuit.

An electrical element comprising:

• a flexible substrate;
• and
• a rigid member greater than the flexible substrate in thickness and in rigidity;
• wherein
• at least one of the flexible substrate and the rigid member is made of thermoplastic resin;
• a conductor pattern that defines at least a portion of a section that performs a main function of the electrical element is provided at the flexible substrate;
• no conductor pattern that defines the section that performs the main function of the electrical element is provided at the rigid member;
• opposing surfaces of the flexible substrate and the rigid member are directly joined to each other;
• and
• the flexible substrate includes a portion to be bent, and the rigid member and the portion to be bent are joined to each other.