How Samsung became the world's second biggest advanced chipmaker

Samsung may be known for its phones, TVs and appliances, but it's also been the leader in memory chips for more than three decades. Now, as memory prices continue to fall, it's doubling down on manufacturing chips for outside customers, with a $17 billion new chip fab in Texas and new $228 billion cluster in South Korea. CNBC got a rare look inside Samsung's chip business to bring you the untold story of how it became the world's second biggest advanced chipmaker, with plans to catch TSMC.