Semiconductor device including a substrate to which a lead is fixed

A semiconductor device, comprising:

• a substrate having an obverse surface facing in a thickness direction;
• a first lead having a loading surface facing a side same as a side the obverse surface faces as to the thickness direction and being fixed on the obverse surface;
• and
• a first semiconductor element arranged on the loading surface,
• wherein a dimension of the substrate in a first direction orthogonal to the thickness direction is larger than a dimension of the substrate in a second direction orthogonal to the thickness direction and the first direction,
• the first lead comprises a first region overlapped with the first semiconductor element as viewed in the thickness direction and a second region separated from the first semiconductor element as viewed in the thickness direction, and at least a part of the second region extends along the second direction,
• a dimension of the second region in the first direction is smaller than a dimension of the first region in the first direction, and
• one end of the second region as to the second direction reaches a peripheral edge of the first lead.

A semiconductor device, comprising:

• a substrate having an obverse surface facing in a thickness direction;
• a first lead having a loading surface facing a side same as a side the obverse surface faces as to the thickness direction and being fixed on the obverse surface;
• and
• a first semiconductor element arranged on the loading surface,
• wherein a dimension of the substrate in a first direction orthogonal to the thickness direction is larger than a dimension of the substrate in a second direction orthogonal to the thickness direction and the first direction,
• the first lead comprises a first region overlapped with the first semiconductor element as viewed in the thickness direction and a second region separated from the first semiconductor element as viewed in the thickness direction, and at least a part of the second region extends along the second direction,
• a dimension of the second region in the first direction is smaller than a dimension of the first region in the first direction, and
• the second region is a slit.