IPC Subgroup
G11C 11/401 forming cells needing refreshing or charge regeneration, i.e. dynamic cells
Introduced: January 1990
Last revised: January 2006
Full Title
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
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- STATIC STORES
4 direct subcodes
Child Classifications
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- G11C 11/402 with charge regeneration individual to each memory cell, i.e. internal refresh
- G11C 11/403 with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
- G11C 11/406 Management or control of the refreshing or charge-regeneration cycles
- G11C 11/4063 Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
Top Applicants
Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 10,574
- SK HYNIX KR 9,138
- SAMSUNG ELECTRONICS COMPANY KR 9,004
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
- INTEL CORPORATION US 2,952
- SANDISK TECHNOLOGIES US 2,905
- WESTERN DIGITAL TECHNOLOGIES US 2,630
- TOSHIBA CORPORATION JP 2,593
- SEAGATE TECHNOLOGY US 2,472