Anisotropic conductive sheet, electrical inspection device, and electrical inspection method

A anisotropic conductive sheet, comprising:

• an insulating layer including a first surface located on one side in a thickness direction, a second surface located on another side in the thickness direction, and a plurality of through holes each extending between the first surface and the second surface;
• and
• a plurality of conductive layers respectively disposed on inner wall surfaces of the plurality of through holes,
• wherein each of the plurality of conductive layers includes:
• a base layer that is disposed on each of the inner wall surfaces of the plurality of through holes, the base layer containing a metal-containing thin film and a binder with at least a part thereof disposed between each of the inner wall surfaces of the plurality of through holes and the metal-containing thin film, and
• a metal plating layer disposed on or above the base layer so as to be in contact with the metal-containing thin film, and
• wherein the binder is a sulfur-containing compound having a thiol group, a sulfide group, or a disulfide group.