Patent ID: 6337592
Filing Date: 2002-01-08
Classification: G11C,H03K

Abstract:
A non-volatile semiconductor switch circuit comprising:a signal preservation section for preserving complementary control signals generated in accordance with a first potential and a second potential which are applied at a first control terminal and a second control terminal respectively; a switch section connected to the signal preservation section and formed by complementary transistors between a first input/output terminal and a second input/output terminal for switching between an on state and an off state in response to the control signals; a first ferroelectric capacitor connected between the first control terminal and a third control terminal for generating a polarization state in accordance with a potential difference between the first and third control terminals when a third potential is applied at the third control terminal and for preserving the polarization state after the first and third potentials have been removed; a second ferroelectric capacitor connected between the second and third control terminals for generating a polarization state in accordance with a potential difference between the second and third control terminals when the third potential is applied at the third control terminal and for preserving the polarization state after the second and third potentials have been removed; a first short section connected in parallel with the first ferroelectric capacitor for placing input/output terminals of the first ferroelectric capacitor in a short-circuited state when a preservation signal is applied; and a second short section connected in parallel with the second ferroelectric capacitor for placing input/output terminals of the second ferroelectric capacitor in a short-circuited state when the preservation signal is applied.