Substrate holder, substrate plating device equipped therewith, and electrical contact

An electrical contact attachment structure for attaching an electrical contact for applying an electric current to a substrate held by a substrate holder, wherein:

• the substrate holder comprises a first holding member, and a second holding member that has an opening portion for exposing the surface of the substrate and holds the substrate in a sandwiched manner with the first holding member;
• the second holding member comprises engaging shaft portions each having a head portion in an expanded head shape at a tip end portion, provided in a circumferential direction;
• the electrical contact comprises an engagement reception portion in a notch shape provided on sides of opposite end edge portions, and a contact portion to be in contact with an edge portion of the substrate;
• the engagement reception portion is engaged with an adjacent engaging shaft portion;
• and
• the electrical contact is arranged along a circumference of the opening portion of the second holding member.