Comparative study of electrical characteristics for n-type 4H–SiC planar and trench MOS capacitors annealed in ambient NO Project supported by the National Basic Research Program of China (Grant No. 2015CB759600), the National Natural Science Foundation of China (Grant Nos. 61474113 and 61574140), the Beijing NOVA Program, China (Grant No. Z1611000049161132016071), China Academy of Engineering Physics (CAEP) Microsystem and THz Science and Technology Foundation, China (Grant No. CAEPMT201502), the Beijing Municipal Science and Technology Commission Project, China (Grant Nos. Z161100002116018 and D16110300430000), and the Youth Innovation Promotion Association of Chinese Academy of Sciences (Grant No. 2012098) |
(color online) (a) Schematics of one unit cell trench and planar MOS capacitors and (b) definitions of the wafer plane orientation and the trench MOS direction. |