Figure 4:   Current Density Top-Down View of Virtual-Model Experiment Runs. Each experimental setup (shown in Images A, B and C) have different experimental run treatments (refer to Figure 1 for treatment descriptions). Image A: The rail is not continuous, causing the current to flow through the interior of the wordline. Image B: The memory hole size is the same as in Image A, but the wide rail allows current to flow along the outer edges of the wordline. Image C:  A nominal memory cell hole size is shown.  In this case, the nominal wordline rail distance supports a more uniform current density pattern.

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