Patent ID: 6847071
Filing Date: 2005-01-25
Classification: G11C,H01L

Abstract:
1. A semiconductor device comprising: a first semiconductor layer; a first MISFET having a first dielectric film formed on said first semiconductor layer, a first gate electrode formed on said first gate dielectric film, first and second P type diffusion regions formed in the areas located at both sides of said first gate electrode in said first semiconductor layer; a second semiconductor layer; a second MISFET having a second dielectric film formed on said second semiconductor layer, a second gate electrode formed on said second gate dielectric film, first and second N type diffusion regions formed in the areas located at both sides of said second gate electrode in said second semiconductor layer; a ferroelectric capacitor having a first electrode connected to said first and second gate electrodes in common, a second electrode opposite the first electrode, and a ferroelectric film intervening between said first and second electrodes; a first voltage supply portion for supplying the first voltage to the first N type diffusion region of said second MISFET; a first voltage supply portion for supplying the second voltage which is lower than said first voltage to the first P type diffusion region of said first MISFET; and a voltage output portion connected in common to the second P type and N type diffusion regions of each of said MISFETs for outputting the output voltage according to the voltage inputted to said second electrode of said ferroelectric capacitor, and functioning as an electric potential generating device.