using semiconductor devices

Introduced: September 1968

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

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

Of 5 combined children, 4 exist in both systems.

1 codes exist only in IPC.

Child Classifications

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G11C 11/35 with charge storage in a depletion layer, e.g. charge coupled devices since 2000 IPC+CPC Available in IPC and CPC
G11C 11/36 using diodes, e.g. as threshold elements IPC+CPC Available in IPC and CPC
G11C 11/39 using thyristors since 1990 IPC+CPC Available in IPC and CPC
G11C 11/40 using transistors IPC+CPC Available in IPC and CPC
G11C 11/4193 Auxiliary circuits specific to particular types of semiconductor storage devices, e.g. for addressing, driving, sensing, timing, power supply, signal propagation since 2000 −2 IPC IPC only IPC only