1. Mavor, J., Jack, M.A., and Denyer, P.B.: Introduction to MOS LSI design, (Addison-Wesley 1983),Chap. 5,
2. Weste, N., and Eshraghian, K.: Principles of CMOS VLSI design, (Addison-Wesley 1985),Chap. 8,
3. Layout design rules 3.0μm P-well CMOS, (VTI Technology Inc., San Jose, CA, 95131