By 2020, renewable energy, rail transportation, industrial power inverter and fast-growing industries such as power electronics market will drive sales of discrete devices reach 15 billion U.S. dollars. With the performance of silicon-based power electronic devices getting close to its theoretical limit, SiC and GaN devices will seek to enter the power electronics market, is expected to 2020, SiC and GaN power devices will receive 14% and 8% market share. The future development of power electronic components market will be more concentrated in SiC and GaN technology innovation. LuxResearch predicted that by 2020, based on SiC or GaN power electronics components will account for 22% market share, sales reached $ 3.3 billion.SiC devices because of maturity and better reliability, the pace of development will lead GaN. GaN power devices is currently a leading supplier of: EPC (EPC), Transphorm and IR.SiC power devices growth impetus came mainly from the field of renewable energy in the solar market share will reach 32%. In the field of rail transportation, SiC and GaN applications rather, it is expected that by 2020, the market share of between 16% and 15%. IT and electronic equipment market, GaN SiC advantage over estimated 2020 market share of up to 14%. In the building market, GaN devices promising, an estimated $ 2.4 billion market.In the past five years, investors in SiC and GaN devices had invested more than 200 million U.S. dollars, Transphorm, EpiGaN, GaNSystems and Azzurro company has completed several rounds of fund-raising; Fairchild acquisition TranSiC, Infineon acquired SiCed, ROHM acquisition SiCrystal, South Korea SKC acquisition Crysband.