Billions of dollars later and the juggernaut of the Hard Disk sector is officially moving into the Solid State arena with the acquisition of Sandisk. This merger will enable WDC to capitalize on SanDisk's 3D NAND technology but interestingly enough SanDisk has never produced 3D NAND in volume. This will either solidify or pose significant integration issues moving forward for WDC.
http://www.wdc.com/en/company/pressroom/releases/?release=113105ba-cb37-49f6-8fab-de43c41d7334
http://www.wdc.com/en/company/pressroom/releases/?release=113105ba-cb37-49f6-8fab-de43c41d7334