Patent ID: 6583504
Filing Date: 2003-06-24
Classification: H01L

Abstract:
In a combination of a semiconductor die in a molding apparatus, said molding apparatus having an upper mold half and a lower mold half, comprising:said upper mold half of said molding apparatus having a cavity formed therein; said lower mold half of said molding apparatus having a cavity formed therein having a first portion and having a second portion below the first portion; a semiconductor die having an upper surface and a lower surface, the semiconductor die located in at least a portion of the cavity of the upper mold half; a heat sink having an upper surface connected to the lower surface of the semiconductor die and having a lower surface having a periphery, the heat sink located in at least a portion of the first portion of the cavity in the lower mold half, said heat sink comprising a metal material; and a dam connected to the heat sink, the dam located on the lower surface of the heat sink, extending around the periphery thereof and extending from the periphery of the lower surface of the heat sink into at least a portion of the second portion of the cavity in the lower mold half, said dam openly communicating with the lower mold half.