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CPC Subgroup
G11C 11/409

Read-write [R-W] circuits

Full Title

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 > Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing > for memory cells of the field-effect type > Read-write [R-W] circuits

6 direct subcodes

Child Classifications

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  • G11C 11/4091 Sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or isolating
  • G11C 11/4093 Input/output [I/O] data interface arrangements, e.g. data buffers
  • G11C 11/4094 Bit-line management or control circuits
  • G11C 11/4096 Input/output [I/O] data management or control circuits, e.g. reading or writing circuits, I/O drivers or bit-line switches
  • G11C 11/4097 Bit-line organisation, e.g. bit-line layout, folded bit lines
  • G11C 11/4099 Dummy cell treatment; Reference voltage generators

Top Applicants

Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT

  1. MICRON TECHNOLOGY US 12,397
  2. SAMSUNG ELECTRONICS COMPANY KR 12,238
  3. SK HYNIX KR 11,371
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
  5. INTEL CORPORATION US 3,874
  6. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
  7. SANDISK TECHNOLOGIES US 3,151
  8. SK HYNIX 3,143
  9. SAMSUNG ELECTRONICS COMPANY 3,073
  10. WESTERN DIGITAL TECHNOLOGIES US 2,961