Stress reduction in chip packaging by a stress compensation region formed around the chip

A stress compensation region that may be appropriately positioned on a package substrate may compensate for or at least significantly reduce the thermally induced mechanical stress in a sensitive metallization system of a semiconductor die, in particular during the critical reflow process. For examp...

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Bibliographische Detailangaben
Hauptverfasser: GRILLBERGER MICHAEL, BERTHOLD HEIKE, CHUMAKOV DMYTRO, REICHE KATRIN
Format: Patent
Sprache:eng
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Zusammenfassung:A stress compensation region that may be appropriately positioned on a package substrate may compensate for or at least significantly reduce the thermally induced mechanical stress in a sensitive metallization system of a semiconductor die, in particular during the critical reflow process. For example, a stressor ring may be formed so as to laterally surround the chip receiving portion of the package substrate, wherein the stressor ring may efficiently compensate for the thermally induced deformation in the chip receiving portion.