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Hitachi Ltd
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Hitachi Ltd
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Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP2791477ApriorityCriticalpatent/JPS53113479A/en
Publication of JPS53113479ApublicationCriticalpatent/JPS53113479A/en
PURPOSE: To obtain a semiconductor device of a long heat cycle life by securing semiconductor chips to a heat sink through insulators of the same size as that of the chips.