| 摘要 |
A lead frame for a hollow plastic package is constructed with a source lead, a pellet mounting portion provided at the central portion of the source lead and mounting a pellet, a lead gate and a drain gate symmetrically provided across the pellet mounting portion at the both sides thereof. Then, each lead is provided with substantially equilateral trapezoidal cut-off having the upper bottom and the lower bottom along the extending direction of the lead on a part of the lead, so that a lead bending portion is formed with a narrow part thereat.
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