Latch ratio circuit with plural channels

Abstract

The purpose of this invention is to ensure an active use of the inverse short-channel effect in the ratio circuit and to guarantee stable operation at low power source voltage. In this ratio circuit, N-channel MOS transistor,of CMOS circuit,on one side forms the drive element, while P-channel MOS transistor,of CMOS circuit,on the other side forms the load element. Said N-channel MOS transistor,on the drive side and P-channel MOS transistor,on the load side have their drain terminals electrically connected to each other through transfer gate,made of N-channel MOS transistor. MOS transistor,on the drive side has a single channel CHa with the inverse short-channel effect. MOS transistor,on the load side has plural, e.g., two, channels CHb,and CHb,, connected in tandem, each of which displays the inverse short-channel effect.