A method is provided for forming a metal/semiconductor/metal (MSM) current
limiter and resistance memory cell with an MSM current limiter. The
method provides a substrate; forms an MSM bottom electrode overlying the
substrate; forms a ZnOx semiconductor layer overlying the MSM bottom
electrode, where x is in the range between about 1 and about 2,
inclusive; and, forms 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).