在铝栅CMOS数字电路中,采用一个低跨导pMOS管和一个低跨导nMOS管及两个专门设计的大电容和两级普通倒相器,可构成一个自复零电路。在芯片电源接通时,该电路产生一个具有一定持续时间的脉冲,使芯片所有应复零的电路复位。本文对这种电路进行了电路设计分析和版图设计分析,并给出了该电路元件的设计尺寸。 In aluminum gate CMOS digital circuits, a low transconductance pMOS transistor and a low transconductance nMOS transistor and two specially designed large capacitors and two ordinary inverters form a self-healing zero-return circuit. When the chip is powered on, the circuit generates a pulse of a certain duration that resets all the circuits that should be zeroed. In this paper, the circuit design analysis and layout design analysis of the circuit, and gives the design of the circuit components size.