Patent ID: 6486564
Filing Date: 2002-11-26
Classification: H01L

Abstract:
A heat dissipation module for a BGA (Ball Grid Array) IC (Integrated Circuit) device encapsulated along with a chip and a substrate inside glue where electrical connections are made between the chip and the substrate in a connection area, the heat dissipation module comprising:an annular base, whose inner rim covers the connection area for the chip and the substrate; multiple supports, which extend from the inner rim of the annular base upwards; a top plate, which is supported by the supports and is higher than the highest point of the electrical connections between the chip and the substrate; and at least one protruding ring, which is formed upward on top of the top plate to separate from the glue to expose to the air without the need for a second machining to remove a part of the glue on the top plate.