Patent ID: 8214916
Filing Date: 2012-07-03
Classification: B82Y,G01Q,G03F

Abstract:
1. A method comprising: providing an array of cantilevers, each cantilever comprising a tip thereon, and each cantilever being configured such that at least one visible red bright spot appears near the tip of the cantilever when ambient light is illuminated onto the cantilever; providing a substrate; viewing a cantilever in a first location on the array while moving the array and/or the substrate closer with respect to each other; determining a distance traveled by the array and/or the substrate before a red bright spot on a cantilever in the first location visibly dims, thereby determining when the tip of the cantilever in the first location contacts the substrate; and leveling the array and the substrate with respect to each other based at least in part on the distance traveled by the array and/or the substrate before the red bright spot on the cantilever in the first location visibly dims.