Improved generation single -chip triode

The utility model belongs to the technical field of the semiconductor electronic component technique and specifically relates to indicate an improved generation single -chip triode and since present tripolar keep a grip on use a period after because moisture and the impurity entering wafer of course of working result in work efficiency on the low side, the vibrations in the use happen occasionallywith the lamination that the heat dissipation results in inadequately, also very easily lead to the fact discrete device to make moist short -circuit fault and unable and normally work, how strengthen firmness that plastic envelope material and the lead wire frame base body combine, stop the plastic envelope material to heave fracture, strengthen the waterproof sealing performance, provide an improved generation single -chip triode, include that the foot is led to plastic envelope portion, heat dissipation base body, paster district, wafer, bonding line, centre, the foot is led in the input and the foot is led in out