SanDisk

SanDisk is Western Digital's brand for flash memory products, including memory cards and readers, USB flash drives, and solid-state drives. The company was acquired by Western Digital in 2016.
 Western Digital is the fourth-largest manufacturer of flash memory having declined from third-largest in 2014.
History.
SanDisk was founded in 1988 by Eli Harari, Sanjay Mehrotra, and Jack Yuan, incorporated at the time as SunDisk. SanDisk co-founder Eli Harari developed the Floating Gate EEPROM which proved the practicality, reliability and endurance of semiconductor-based data storage. 
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 $1,000.
On May 10, 2000, the Toshiba Corporation of Japan and the SanDisk Corporation said that they would form a new semiconductor company to produce advanced flash memory, primarily for digital cameras.
SanDisk was acquired by hard disk drive manufacturer Western Digital on May 12, 2016 in a US$19 billion deal.