Patent ID: 7342304
Filing Date: 2008-03-11
Classification: H01L

Abstract:
1. A heat dissipating structure for a semiconductor package having a substrate, at least a chip mounted on the substrate and electrically connected to the substrate via a plurality of conductive elements, and one or more passive components mounted on the substrate, the heat dissipating structure comprising: a flat portion, wherein at least a peripherally-situated recess is formed on a top surface of the flat portion; and a plurality of support portions formed at edge corners of the flat portion and outmost corners of the heat dissipating structure for supporting the flat portion in position above the chip, each of the support portions further comprising at least two panels and a contact portion formed between the panels at a respective outmost corner of the heat dissipating structure, wherein the support portions are mounted at a predetermined area on the substrate and free of interference with an arrangement of the chip, the passive components and the conductive elements, and the support portions are arranged to form a space between two adjacent support portions, the space being sufficiently dimensioned to accommodate the conductive elements and the passive components so as to allow the conductive elements to pass through the space to reach an area on the substrate outside coverage of the heat dissipating structure and such that the passive components are located within and/or outside the coverage of the heat dissipating structure.