Patent ID: 6972372

Claim:
A stacking structure for electrical components, comprising: a first electrical component that includes first leads having first inner lead portions and first outer lead portions; and a second electrical component that includes second leads having second inner lead portions and second outer lead portions, the second electrical component being capable of being stacked on the first electrical component by placing the second inner lead portions in contact with the first inner lead portions, and also being capable of being stacked on the first electrical component by placing the second outer lead portions in contact with the first outer lead portions; wherein the first electrical component further comprises: a chip having an active surface and an opposing non-active surface, wherein the active surface comprises a central area and a peripheral area having a plurality of bonding pads; a lead frame comprising the first leads, a plurality of tie bars, and a chip paddle having an adhering surface and a opposing non-adhering surface, the adhering surface being connected with the central area, the tie bars being connected to the chip paddle and attached to the active surface of the chip in such a way as to avoid contact with the bonding pads, each of the first leads comprising a wire-connecting surface and a wire non-connecting surface; a plurality of wires electrically connecting bonding pads and wire-connecting surfaces of the first leads; and an encapsulation covering the active surface of the chip, the bonding pads, the adhering surface of the chip paddle, and the wire-connecting surfaces of the first leads and the wires, such that the opposing non-active surface of the chip, the opposing non-adhering surface of the chip paddle and the wire non-connecting surfaces of the first leads are exposed.