A ferroelectric memory includes a base member, a first dielectric layer
formed above the base member, a second dielectric layer formed above the
first dielectric layer, a contact hole that penetrates the first and
second dielectric layers, a plug formed in the contact hole, and a
barrier layer formed above the plug, and a ferroelectric capacitor formed
from a lower electrode, a ferroelectric layer and an upper electrode
successively laminated in a region including above the plug. The second
dielectric layer has a property that is more difficult to be polished
than the plug and the first dielectric layer.