Patent ID: 7998559
Filing Date: 2011-08-16
Classification: B08B,B81C,B82Y,Y10T

Abstract:
1. A structure, comprising: a substrate having a substrate surface; a plurality of spaced-apart nanoscale top features collectively forming a superlyophobic surface over the substrate, each nanoscale top feature having a diameter measured in a direction approximately parallel with the substrate surface; and a plurality of nanoscale raised features on the substrate surface, each of the nanoscale raised features supporting one of the nanoscale top features over the substrate, each of the nanoscale raised features having a length measured in a direction approximately perpendicular to the substrate surface, and each of the nanoscale raised features having a diameter along the length and measured in a direction approximately parallel with the substrate surface; wherein at a first point along the length of each of the nanoscale raised features and being located near the substrate surface, the diameter of the nanoscale raised feature is greater than at a second point, the second point being spaced apart from the first point along the length of the nanoscale raised feature and being located near the supported nanoscale top feature; and wherein an average diameter of the nanoscale top features is greater than an average diameter of the nanoscale raised features at the second point.