This is an early access version, the complete PDF, HTML, and XML versions will be available soon. Open AccessReview by Tao You 1,2, Miao Zhao 1,2,*, Zhikang Fan 1,2 and Chenwei Ju 1,2 1 High-Frequency High-Voltage Device and Integrated Circuits R&D Center, Institute of Microelectronics of the Chinese Academy of Sciences, 3 Beitucheng West Road, Beijing 100029, China 2 University of Chinese Academy of Sciences, Beijing 100029, China * Author to whom correspondence should be addressed.
