A memory cell capacitor (C3) of a DRAM is formed by use of a MIM capacitor
which uses as its electrode a metal wiring line of the same layer (M3) as
metal wiring lines within a logic circuit (LOGIC), thereby enabling
reduction of process costs. Higher integration is achievable by forming
the capacitor using a high dielectric constant material and disposing it
above a wiring layer in which bit lines (BL) are formed. In addition,
using 2T cells makes it possible to provide a sufficient signal amount
even when letting them operate with a low voltage. By commonizing the
processes for fabricating capacitors in analog (ANALOG) and memory (MEM),
it is possible to realize a semiconductor integrated circuit with the
logic, analog and memory mounted together on one chip at low costs.