Method for assembling a carrier and a semiconductor device
The present invention relates generally to electronic packaging and, more particularly, to a semiconductor module and related method for electrical interconnection between a chip and the substrate of the module. A module or assembly is formed by interposing a polymer between a carrier and a semicond...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The present invention relates generally to electronic packaging and, more particularly, to a semiconductor module and related method for electrical interconnection between a chip and the substrate of the module.
A module or assembly is formed by interposing a polymer between a carrier and a semiconductor device to be secured to the carrier. The polymer has ionized metallic particles suspended in it. Before setting or curing the polymer, the module is exposed to an electric field which induces migration of the metallic particles to the opposing pads of the carrier and semiconductor device. Such migration ultimately forms metal dendrites extending between mating pad pairs. The dendrites establish a metallurgical bond and conductive paths between the carrier and the overlying semiconductor device. When the polymer is subsequently set, the carrier and device are not only adhered to each other, but the dendrite connections are fixed and structurally reinforced to provide the needed electrically conductive paths. |
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