CPC Main Group
G11C 29/00 Checking stores for correct operation ; Testing stores during standby or offline operation
8 direct subcodes
Child Classifications
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- G11C 29/02 Detection or location of defective auxiliary circuits, e.g. defective refresh counters
- G11C 29/04 Detection or location of defective memory elements
- G11C 29/52 Protection of memory contents; Detection of errors in memory contents
- G11C 29/54 Arrangements for designing test circuits, e.g. design for test [DFT] tools
- G11C 29/56 External testing equipment for static stores, e.g. automatic test equipment [ATE]; Interfaces therefor
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