Summations on trigonometric functions. - Wen-Chang Chu (Appl. Math. Comput., 2003)

The Fringe-Capacitance of Etching Holes for CMOS-MEMS. - Yi-Ta Wang; Yuh-Chung Hu; Wen-Chang Chu; Pei-Zen Chang (Micromachines, 2015)