CPC Subgroup
G11C 17/08 using semiconductor devices, e.g. bipolar elements (G11C17/06, G11C17/14 take precedence)
Full Title
Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards > using semiconductor devices, e.g. bipolar elements (G11C17/06, G11C17/14 take precedence)
1 direct subcode
Child Classifications
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- G11C 17/10 in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM