Taiwanese businessman Tsai Ming-Kai comes with an estimated net worth of $1.43 billion as of May 2013 according to Forbes. For a serious number of years now, he is serving as the Chairman of Mediatek whose customers comprise globally renowned companies like Asus, Acer and Lenovo. Due to the quite high interest in mobile phones that make use of chipsets manufactures by Mediatek, Tsai Ming Kai’s net worth soared this year by almost $400 million. Mediatek is actually asemiconductor design firm that specializes on manufacturing processors for DVDs, TVs in addition to wireless communications. The business is actually a spin off ofUnited Microelectronics Corp. Currently recorded atTaiwan Stock Exchange, Mediatek was hailed as the world’ssixth biggest fabless semiconductor business in 2003.