forming cells needing refreshing or charge regeneration, i.e. dynamic cells

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

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

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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G11C 11/402 with charge regeneration individual to each memory cell, i.e. internal refresh since 1990 +2 CPC IPC+CPC Available in IPC and CPC
G11C 11/403 with charge regeneration common to a multiplicity of memory cells, i.e. external refresh since 1990 IPC+CPC Available in IPC and CPC
G11C 11/406 Management or control of the refreshing or charge-regeneration cycles since 1990 +7 CPC IPC+CPC Available in IPC and CPC
G11C 11/4063 Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing since 2000 IPC+CPC Available in IPC and CPC