Circuit board

A circuit board including a plurality of terminal parts for mounting electronic components, the circuit board comprising:

• a first row terminal group formed of a plurality of terminal parts that are aligned in a predetermined direction;
• and
• a second row terminal group formed of a plurality of terminal parts that are aligned in parallel with the first row terminal group and arranged in a zig-zag pattern with respect to the first row terminal group, wherein
• the terminal parts included in the first row terminal group include one terminal parts as first row projecting terminal parts that are arranged in a state of being protruded toward the second row terminal group further than another terminal parts included in the first row terminal group,
• the terminal parts included in the second row terminal group include one terminal parts as second row projecting terminal parts that are arranged in a state of being protruded toward the first row terminal group further than another terminal parts included in the second row terminal group, and
• the first row projecting terminal parts and the second row projecting terminal parts are overlapped in the predetermined direction and are arranged while being spaced apart from each other in the predetermined direction.