Patent assignee · US · COMPANY

Sandisk Technologies, Inc.

4,407Patents
4,391Active
4,407Granted
70Portfolio score

Filing activity: Nov 21, 2002 → Jul 1, 2024 · 335 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US9123577B2 Air gap isolation in non-volatile memory using sacrificial films Electricity 451 Active
US8045391B2 Non-volatile memory and method with improved sensing having bit-line lockout control Physics 416 Active
US9449987B1 Three dimensional memory device with epitaxial semiconductor pedestal for peripheral transistors Electricity 391 Active
US9053808B2 Flash memory with targeted read scrub algorithm Physics 327 Active
US8375146B2 Ring bus structure and its use in flash memory systems Physics 307 Active
US8187936B2 Ultrahigh density vertical NAND memory device and method of making thereof Electricity 294 Active
US8349681B2 Ultrahigh density monolithic, three dimensional vertical NAND memory device Electricity 262 Active
US9230973B2 Methods of fabricating a three-dimensional non-volatile memory device Electricity 203 Active
US10283493B1 Three-dimensional memory device containing bonded memory die and peripheral logic die and method of making thereof Electricity 189 Active
US9595530B1 Methods and apparatus for vertical bit line structures in three-dimensional nonvolatile memory Electricity 184 Active
US9673257B1 Vertical thin film transistors with surround gates Electricity 182 Active
US9124300B2 Error correction coding in non-volatile memory Electricity 174 Active
US9311970B2 Systems and methods of storing data Physics 170 Active
US9501398B2 Persistent storage device with NVRAM for staging writes Physics 170 Active
US9355022B2 Systems and methods for intelligent flash management Physics 166 Active
US9311969B2 Systems and methods of storing data Physics 164 Active
US10115681B1 Compact three-dimensional memory device having a seal ring and methods of manufacturing the same Electricity 148 Active
US8193054B2 Ultrahigh density vertical NAND memory device and method of making thereof Electricity 146 Active
US8198672B2 Ultrahigh density vertical NAND memory device Electricity 141 Active
US8658499B2 Three dimensional NAND device and method of charge trap layer separation and floating gate formation in the NAND device Electricity 137 Active
US9023719B2 High aspect ratio memory hole channel contact formation Electricity 133 Active
US9343358B1 Three-dimensional memory device with stress compensation layer within a word line stack Electricity 129 Active
US8878278B2 Compact three dimensional vertical NAND and method of making thereof Electricity 120 Active
US8040744B2 Spare block management of non-volatile memories Physics 119 Active
US8283228B2 Method of making ultrahigh density vertical NAND memory device Electricity 118 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.