Patent ID: 11935812
Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 16:
17. A semiconductor package comprising:
a package substrate;
a semiconductor chip on the package substrate;
a heat dissipation member on the semiconductor chip;
a first thermal interface material coated on an upper surface of the semiconductor chip, the first thermal interface material bonding the semiconductor chip and the heat dissipation member;
a heat sink disposed on the heat dissipation member; and
a second thermal interface material coated on an upper surface of the heat dissipation member, the second thermal interface material bonding the heat dissipation member and the heat sink,
the first and second thermal interface materials including:
a liquid metal including about 60 wt % to about 80 wt % gallium (Ga), about 12 wt % to about 40 wt % indium (In), and about 0 wt % to about 20 wt % tin (Sn); and
fine particles disposed inside the liquid metal, the fine particles having no oxide layer, and each of the fine particles having a diameter of about 20 nm to about 100 μm,
wherein a volume percentage of the fine particles in the liquid metal including the fine particles therein is about 1% to about 5%, and
wherein a thermal conductivity of the liquid metal including the fine particles therein is equal to or more than about 40 W/m·K.