Lead frame plate

The invention relates to a lead frame plate which comprises two tracks, a plurality of main body areas, a plurality of connecting rods and a plurality of thinning areas, each connecting rod is connected between one main body area and the adjacent corresponding track or between the two main body areas, each connecting rod is provided with an axis, two connecting arms and a through hole located between the two connecting arms, at least one part of each connecting arm extends in a non-parallel direction relative to the axis, each thinning area is arranged on one of the main body areas or one of the connecting arms, and in the forming process of the plurality of thinning areas, generated stress can be released when passing through the two connecting arms, so that the problem that the size deviation is too large due to excessive extension of the lead frame plate is avoided, and the defects that a connecting rod of an existing lead frame material sheet is large in rigidity and not prone to releasing stress are effe