Professor Peide Ye delivered a plenary talk titled "III-V MOS Technology: from Planar to 3D and 4D" at the Compound Semiconductor Week (CSW) 2013. The 40th International Symposium on Compound Semiconductors (ISCS 2013) and the 25th International Conference on Indium Phosphide and Related Materials (IPRM 2013) were held at Kobe, Japan from May 19-23, 2013, under the umbrella of the CSW 2013. It is the biggest event in the compound semiconductor research field world wide.