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SanDisk Corporation
Brand division
IndustryStorage devices
Founded1988; 31 years ago (1988)
FoundersEli Harari
Sanjay Mehrotra
Jack Yuan
ParentWestern Digital

SanDisk (founded 1988[citation needed]) is a brand of Western Digital (WD) for flash memory products, including Memory cards and readers, USB flash drives, and Solid-state drives. It was acquired by WD in 2016.

As of March 2019, WD is the fourth-largest manufacturer of flash memory having declined from third-largest in 2014.[1][2]


SanDisk founders: Jack Yuan, Eli Harari, and Sanjay Mehrotra (2010)

SanDisk was founded in 1988 by Eli Harari, Sanjay Mehrotra, and Jack Yuan, incorporated at the time as SunDisk.[3] SanDisk co-founder Eli Harari developed the Floating Gate EEPROM which proved the practicality, reliability and endurance of semiconductor-based data storage.[4]

In 1991 SanDisk produced the first flash based SSD in a 2.5-inch hard disk drive form factor for IBM with a 20 MB capacity priced at about $1000.[5]

On May 10, 2000, the Toshiba Corporation of Japan and the SanDisk Corporation said that they would jointly form a new semiconductor company to produce advanced flash memory, primarily for digital cameras.[6]

SanDisk was acquired by hard disk drive manufacturer WD on May 12, 2016 in a US$19 billion deal.[7][8] Since the acquisition, SanDisk has been losing market share.[9][1]


  • In October 2005, SanDisk acquired Matrix Semiconductor.[10]
  • In July 2006, SanDisk acquired M-Systems.[11]
  • In May 2011, SanDisk acquired Pliant Technology, a manufacturer of solid state drives, for US$327 million.[12]
  • In February 2012, SanDisk acquired FlashSoft.[13]
  • In June 2012, SanDisk acquired Schooner Information Technology, developer of the flash-optimized database software SchoonerSQL and caching software Membrain.[13]
  • In July 2013, SanDisk acquired SMART Storage Systems, a producer of SSDs for the enterprise market, for US$307 million.[14]
  • In June 2014, SanDisk acquired Fusion-io, a producer of flash memory for enterprise datacenters, for $1.1 billion.[15]

Awards and recognition[edit]

See also[edit]


  1. ^ a b Holst, Arne (June 5, 2019). "Quarterly market share held by NAND Flash memory manufacturers worldwide from 2010 to 2019". Statista. Retrieved July 1, 2019.
  2. ^ "Market View: NAND Flash Brand Supplier Revenue Falls 6.6% in First Quarter". DRAMeXchange. 2015-02-05. Retrieved 2015-07-23.
  3. ^ Harris, Scott Duke (2008-07-13). "Mercury News interview: SanDisk CEO helped launch digital revolution". The San Jose Mercury News. Retrieved 2008-08-06.
  4. ^ "Santa Clara Valley Chapter Meeting: 'Future Directions for Semiconductor Non-Volatile Memory". Santa Clara University: IEEE Electron Devices Society. January 16, 1990.
  5. ^ "A History of Innovation". Western Digital. 1991. Retrieved March 28, 2019.
  6. ^ "Toshiba and SanDisk Enter Joint Venture". The New York Times. Reuters. 2000-05-10. ISSN 0362-4331. Retrieved 2019-07-24.
  7. ^ Molina, Brett (2015-10-21). "Western Digital to acquire SanDisk for $19B". USA TODAY. Retrieved 2015-10-22.
  8. ^ Vincent, James (2016-05-12). "Western Digital officially closes SanDisk acquisition". The Verge. Vox Media. Retrieved 2016-08-03.
  9. ^ Mellor, Chris (2018-03-07). "Two years and $19bn later: What happened to WD's SanDisk enterprise flash advantage?". The Register. Retrieved 2019-07-01. Market position evaporating in front of our eyes
  10. ^ Kawamoto, Dawn (2005-10-21). "SanDisk to acquire Matrix Semiconductor". CNET. Retrieved 2016-08-03.
  11. ^ "SanDisk To Buy msystems". The Street. 2006-07-31. Archived from the original on 2007-09-30. Retrieved 2006-08-21. Cite uses deprecated parameter |deadurl= (help)
  12. ^ Kovar, Joseph F. (2011-05-16). "SanDisk Plans To Buy SSD Maker Pliant Technology". Retrieved 2016-08-03.
  13. ^ a b Kovar, Joseph F. (2012-06-27). "SanDisk Buys Schooner, Moves Into Enterprise Software Space". Retrieved 2016-08-03.
  14. ^ Dignan, Larry (2013-07-02). "SanDisk acquires SMART Storage Systems for $307 million". ZDNet. Retrieved 2016-08-03.
  15. ^ Hesseldahl, Arik (2014-06-16). "SanDisk to Acquire Troubled Fusion-io for $1.2 Billion". Recode. Vox Media. Retrieved 2016-08-03.
  16. ^ Lezhnev, Sasha; Hellmuth, Alex (Aug 2012). "Taking Conflict Out of Consumer Gadgets: Company Rankings on Conflict Minerals 2012" (PDF). Enough Project. Retrieved 2012-08-17.
  17. ^ Fairsmith, Christine (2014-10-24). "Eli Harari *73 receives honor from President Obama". School of Engineering and Applied Science. Princeton University. Retrieved 2019-07-24.

External links[edit]

Coordinates: 37°25′07.6″N 121°55′25.9″W / 37.418778°N 121.923861°W / 37.418778; -121.923861