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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G11C 11/402

with charge regeneration individual to each memory cell, i.e. internal refresh

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor > using electric elements > using semiconductor devices > using transistors > forming cells needing refreshing or charge regeneration, i.e. dynamic cells > with charge regeneration individual to each memory cell, i.e. internal refresh

CPC:

Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor (G11C14/00 - G11C21/00 take precedence) > using electric elements > using semiconductor devices > using transistors > forming cells needing refreshing or charge regeneration, i.e. dynamic cells > with charge regeneration individual to each memory cell, i.e. internal refresh

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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