A method is provided for forming a metal/semiconductor/metal (MSM) current
limiter and resistance memory cell with an MSM current limiter. The
method comprises: providing a substrate; forming an MSM bottom electrode
overlying the substrate; forming a ZnOx semiconductor layer overlying the
MSM bottom electrode, where x is in the range between about 1 and about
2, inclusive; and, forming an MSM top electrode overlying the
semiconductor layer. The ZnOx semiconductor can be formed through a
number of different processes such as spin-coating, direct current (DC)
sputtering, radio frequency (RF) sputtering, metalorganic chemical vapor
deposition (MOCVD), or atomic layer deposition (ALD).