Patent ID: 7622794

Claim:
A Chip-On-Lead (COL) multi-chip package primarily comprising: a plurality of first leads each having a first internal lead; a first chip disposed on the first leads; one or more second chips stacked on the first chip; and an encapsulant encapsulating the first chip, the second chips, and the first internal leads of the first leads, the encapsulant having a first surface and a second surface parallel to each other; wherein the first internal leads are fully formed on a downset plane toward and parallel to the second surface and the height between the first internal leads and the first surface are three times or more greater than the height between the first internal leads and the second surface; wherein the encapsulant further has a thickness from the first surface to the second chips about the same as the height from the first internal leads to the second surface of the encapsulant; wherein each second chip has second bonding pads; and wherein the second chips are stair-like staggeredly stacked on each other without covering the second bonding pads.