BIPHENYLARALKYL EPOXY AND PHENOLIC RESINS

AN OBJECTIVE OF THIS INVENTION IS TO PROVIDE AN EPOXY RESIN COMPOSITION FOR ENCAPSULATING A SEMICONDUCTOR FREE FROM A HARMFUL SUBSTANCE OUT OF REGARD FOR THE ENVIRONMENT, WHICH EXHIBITS EXCELLENT SOLDERING HEAT RESISTANCE AND A HIGHER PRODUCTIVITY, AS WELL AS A SEMICONDUCTOR DEVICE MANUFACTURED BY E...

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Bibliographische Detailangaben
Hauptverfasser: HIROFUMI KURODA, HIROKI NIKAIDO
Format: Patent
Sprache:eng
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Zusammenfassung:AN OBJECTIVE OF THIS INVENTION IS TO PROVIDE AN EPOXY RESIN COMPOSITION FOR ENCAPSULATING A SEMICONDUCTOR FREE FROM A HARMFUL SUBSTANCE OUT OF REGARD FOR THE ENVIRONMENT, WHICH EXHIBITS EXCELLENT SOLDERING HEAT RESISTANCE AND A HIGHER PRODUCTIVITY, AS WELL AS A SEMICONDUCTOR DEVICE MANUFACTURED BY ENCAPSULATING THEREWITH. THIS INVENTION RELATES TO A EPOXY RESIN COMPOSITION FOR ENCAPSULATING A SEMICONDUCTOR COMPRISING, AS ESSENTIAL COMPONENTS, (A) AN EPOXY RESIN HAVING A PARTICULAR STRUCTURE AND (B) APHENOLIC RESIN COMPRISING A PHENOLIC RESIN COMPONENT HAVING A PARTICULAR STRUCTURE AS A MAIN COMPONENT, WHICH CONTAINS A COMPONENT HAVING UP TO THREE AROMATIC RINGS IN ONE MOLECULE IN 0.8 % OR LESS IN AN AREA RATIO AS DETERMINED BY GPC ANALYSIS, AS WELL AS A SEMICONDUCTOR DEVICE MANUFACTURED BY ENCAPSULATING A SEMICONDUCTOR CHIP WITH THE COMPOSITION.