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August 30th, 2004
Researchers from the Georgia Institute of Technology and the Naval Research Laboratory (NRL) have developed an improved method for directly writing nanometer-scale patterns onto a variety of surfaces.
Infrared microscope image shows a cantilever during heating. The colors correspond to temperature, the hottest reaching approximately 200 degrees Celsius. The microcantilevers are engineered such that the temperature increases only near the free end. The new writing method, dubbed “thermal dip pen nanolithography,” represents an important extension for dip pen nanolithography (DPN), an increasingly popular technique that uses atomic force microscopy (AFM) probes as pens to produce nanometer-scale patterns.
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