TAIPEI/ HSINCHU, Taiwan -- When Rick Tsai took the CEO position at MediaTek more than four years ago, industry experts and investors all thought he had been handed a poison chalice.
CEO has driven turnaround since taking reins over four years ago

Under CEO Rick Tsai, MediaTek has shed its "budget" image and forayed into the premium mobile chip market long dominated by Qualcomm. (Photo by Cheng Ting-Fang)
TAIPEI/ HSINCHU, Taiwan -- When Rick Tsai took the CEO position at MediaTek more than four years ago, industry experts and investors all thought he had been handed a poison chalice.