According to the IHS report, due to the impact of the overall economic environment, the size of the global power semiconductor market in 2015 declined slightly by 2.6% compared with that in 2014, only $34.011 billion. IHS believes that in a bad environment, the impact of manufacturers' business strategies on the market is also critical. Infineon, through the acquisition and merger of International Rectifier (IR) and LS Power Semitech, ranked Texas Instruments as the leader in the power semiconductor market for years with a slight gap in market share. However, the performance of Deyi is also quite good. In the case of overall market recession, its revenue still grew by 0.7%.

It is known that Infineon has taken the lead in the discrete power semiconductor market in recent years; In terms of power module, it successfully surpassed Mitsubishi Electric and won the championship in 2015. As for the power chip, it is the fourth supplier.