Patent ID: 7557398

Claim:
A semiconductor device comprising: an internal power supply for supplying power to a circuit element; and a compensation capacitor for supplying power to said internal power supply, wherein said compensation capacitor includes: a charge accumulating element having a diffusion layer, a dielectric layer, and a gate electrode layer, wherein said gate electrode layer, said dielectric layer, and said diffusion layer are stacked in this order, and at least partially overlap with each other when viewed from a direction of stacking; a metal layer for applying a voltage to said diffusion layer, said metal layer being formed above said charge accumulating element; and a contact for electrically connecting said diffusion layer and said metal layer, said contact extending between said diffusion layer and said metal layer in the direction of stacking, wherein said gate electrode layer has a form of a mesh which extends in a direction which is perpendicular to the direction of stacking, and wherein said contact extends through an aperture of the mesh of said gate electrode layer, wherein: said diffusion layer has rectangular apertures, wherein at least a part of said apertures are arranged in a matrix, and said gate electrode layer has a plurality of columns and a plurality of rows, wherein each column and each row are in a substantially perpendicular relationship to one another, and wherein a center line of each column and a center line of each row substantially pass through a center of said corresponding rectangular aperture.