CPC Subgroup
G11C 29/18 Address generation devices; Devices for accessing memories, e.g. details of addressing circuits
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
8 direct subcodes
Child Classifications
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- G11C 29/20 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
- G11C 29/26 Accessing multiple arrays (G11C29/24 takes precedence)
- G11C 29/30 Accessing single arrays
Top Applicants
Top 10 applicants by patent filingsfor class G11, 2013–2023, worldwide · Source: EPO PATSTAT
- MICRON TECHNOLOGY US 12,397
- SAMSUNG ELECTRONICS COMPANY KR 12,238
- SK HYNIX KR 11,371
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 4,601
- INTEL CORPORATION US 3,874
- IBM (INTERNATIONAL BUSINESS MACHINES CORPORATION) US 3,866
- SANDISK TECHNOLOGIES US 3,151
- SK HYNIX 3,143
- SAMSUNG ELECTRONICS COMPANY 3,073
- WESTERN DIGITAL TECHNOLOGIES US 2,961