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Priority to JP14851375ApriorityCriticalpatent/JPS5272541A/ja
Publication of JPS5272541ApublicationCriticalpatent/JPS5272541A/ja
Publication of JPS5717320B2publicationCriticalpatent/JPS5717320B2/ja
G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM
G11C17/16—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links