IPC Subgroup
G11C 11/407 for memory cells of the field-effect type
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 > Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing > for memory cells of the field-effect type
Classification Context
- Section:
- PHYSICS
- Class:
- INFORMATION STORAGE
- Subclass:
- STATIC STORES
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G11C 11/4072 Circuits for initialization, powering up or down, clearing memory or presetting
- G11C 11/4074 Power supply or voltage generation circuits, e.g. bias voltage generators, substrate voltage generators, back-up power, power control circuits
- G11C 11/4076 Timing circuits
- G11C 11/4078 Safety or protection circuits, e.g. for preventing inadvertent or unauthorised reading or writing; Status cells; Test cells
- G11C 11/408 Address circuits
- G11C 11/409 Read-write [R-W] circuits
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