Patent ID: 11973010
Assignee: RICHTEK TECHNOLOGY CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A chip packaging method, including:
providing a wafer, on which multiple bumps are formed;
cutting the wafer into multiple chip units, wherein multiple vertical heat conduction elements are formed on the wafer or the chip units;
disposing the chip units on a base material; and
providing a package material to encapsulate lateral sides and a bottom surface of each of the chip units, to form a chip package unit, wherein the bottom surface of the chip unit faces the base material;
wherein, in the chip package unit, the bumps on the chip units abut against the base material, and
wherein the base material includes multiple through-holes and the vertical heat conduction elements pass through the multiple through-holes in the base material.