IPC Main Group
G11C 17/00 Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- STATIC STORES
Related Keywords
use of HOLOGRAPHY for digital data storagePROMREAD-ONLY stores [= static digital stores]static STORES of PROM type
5 direct subcodes
Child Classifications
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- G11C 17/02 using magnetic or inductive elements
- G11C 17/04 using capacitive elements
- G11C 17/06 using diode elements
- G11C 17/08 using semiconductor devices, e.g. bipolar elements
- G11C 17/14 in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM