Patent ID: 8178387

Claim:
A method for determining manufacturing parameters for the manufacture of a memory cell device, the method comprising: (a) selecting GST as a phase change material; (b) selecting a buffer layer material; (c) selecting a cladding layer material; (d) depositing the buffer layer material on a substrate to a buffer layer material thickness; (e) depositing the phase change material on the buffer layer to a phase change material thickness; (f) depositing the cladding layer material on the phase change material to a cladding layer material thickness to form a memory cell element; (g) forming a conductive structure to electrically connect with the phase change material; (h) passing electric current through the phase change material; (i) determining the recrystallization time of the phase change material of the memory cell element; and (j) if the determined recrystallization time is not less than a length of time X, then repeat steps (a)-(j) with the phase change material depositing step comprising depositing a thinner layer of the phase change material thereby reducing the thickness of the phase change material.