A semiconductor memory device having self-aligned contacts, capable of preventing a short-circuit between contacts for bit lines and contacts for storage electrodes and improving a process margin, and a method of fabricating the same are provided. An Artificial Lift Surveillance Tool is provided to identify artificial lift wells with production declines due to artificial lift well failures. Such a low viscosity is obtained through the addition of relatively low amounts of aprotic viscosity modifiers possessing dipole moments of at between about 1.