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IPC Subgroup
G11C 29/18

Address generation devices; Devices for accessing memories, e.g. details of addressing circuits

Introduced: January 2006

Full Title

Checking stores for correct operation; Testing stores during standby or offline operation > Detection or location of defective memory elements > Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing > Built-in arrangements for testing, e.g. built-in self testing [BIST] > Address generation devices; Devices for accessing memories, e.g. details of addressing circuits

Classification Context

Section:
PHYSICS
Class:
INFORMATION STORAGE
Subclass:
STATIC STORES

5 direct subcodes

Child Classifications

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  • G11C 29/2 using counters or linear-feedback shift registers [LFSR]
  • G11C 29/22 Accessing serial memories
  • G11C 29/24 Accessing extra cells, e.g. dummy cells or redundant cells

Top Applicants

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

  1. MICRON TECHNOLOGY US 10,574
  2. SK HYNIX KR 9,138
  3. SAMSUNG ELECTRONICS COMPANY KR 9,004
  4. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 3,739
  5. IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,443
  6. INTEL CORPORATION US 2,952
  7. SANDISK TECHNOLOGIES US 2,905
  8. WESTERN DIGITAL TECHNOLOGIES US 2,630
  9. TOSHIBA CORPORATION JP 2,593
  10. SEAGATE TECHNOLOGY US 2,472