A thin film magnetic media structure comprising a pre-seed layer CrTi is disclosed. The method etches the titanium nitride columns using chlorine-based dry chemistry that is substantially isotropic. The opening has an inner surface. The transistor includes a drain in the substrate with electric field drift in a longitudinal direction extending towards the capacitor. A user can select a displayed sub-route and the method filters the route results to remove any routes not including the selected sub-route and displays the narrowed results.