Force-Feedback Leveling of Massively Parallel Arrays in Polymer Pen Lithography
2010
Polymer pen lithography is a recently developed molecular printing technique which can produce features with diameters ranging from 80 nm to >10 μm in a single writing step using massively parallel (>107 pens) arrays of pyramidal, elastomeric pens. Leveling these pen arrays with respect to the surface to produce uniform features over large areas remains a considerable challenge. Here, we describe a new method for leveling the pen arrays that utilizes the force between the pen arrays and the surface to achieve leveling with a tilt of less than 0.004°, thereby producing features that vary by only 50 nm over 1 cm.
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