Semiconductor device

A semiconductor device, comprising:

• a substrate;
• and
• an electric fuse formed on the substrate,
• the electric fuse including:
• a first interconnect formed on one end side of the electric fuse;
• a second interconnect formed in a layer different from a layer in which the first interconnect is formed;
• a first via portion provided in contact with the first interconnect and the second interconnect to connect the first interconnect and the second interconnect;
• a third interconnect formed on another end side of the electric fuse, the third interconnect being formed in the same layer in which the first interconnect is formed, as being separated from the first interconnect;
• and
• a second via portion provided in contact with the third interconnect and the second interconnect to connect the third interconnect and the second interconnect, the second via portion being lower in resistance than the first via portion,
• wherein the electric fuse is disconnected by a flowing-out portion to be formed of a conductive material forming the electric fuse which flows outwardly during disconnection.