Patent ID: 11908758
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 12:
13. The semiconductor package of claim 12, wherein the heat sink includes one of:
a lower surface having flat structure thermally contacting the upper surface of the SoC, wherein an upper surface of the upper stiffener and an upper surface of the lower stiffener are separated from the lower surface of the heat sink;
a lower surface including a single-step, stepped-down center portion surrounded by an outer portion, wherein the stepped-down center portion thermally contacts the upper surface of the SoC, and the outer portion thermally contacts an upper surface of the lower stiffener; and
a lower surface including a two-step, stepped-down center portion surrounded by an outer portion and including a lower step portion and an upper step portion, wherein the lower step portion thermally contacts the upper surface of the SoC, the upper step portion thermally contacts an upper surface of the upper stiffener, and the outer portion thermally contacts an upper surface of the lower stiffener.