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A New Approach to Fabricating High-density Nanoarrays by Nanocontact Printing
Jian Gu1, Xiaoyin Xiao, Bharath R Takulapalli
1Center for Applied NanoBioscience, Arizona State University, Tempe, AZ 85287.
Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures : Processing, Measurement, and Phenomena : an Official Journal of the American Vacuum Society
|January 27, 2009
Summary
We developed a novel nanocontact printing method for creating high-density nanoarrays with features as small as 30 nm. This technique achieves sub-500 nm alignment accuracy for multilayer printing and can be imaged using atomic force microscopy.
Area of Science:
- Nanotechnology
- Materials Science
- Lithography
Background:
- Fabricating nanoscale patterns is crucial for advanced electronics and biosensors.
- Existing methods often face limitations in resolution, density, or alignment accuracy.
Purpose of the Study:
- To introduce a new nanocontact printing scheme for high-density nanoarray fabrication.
- To demonstrate the capability for precise multilayer printing and nanoscale imaging.
Main Methods:
- Utilized ultraviolet nanoimprint lithography to generate stamps for nanocontact printing.
- Employed a traditional contact mask aligner for sub-500 nm multilayer alignment.
- Characterized the fabricated nanoarrays using atomic force microscopy (AFM).
Main Results:
- Achieved high-density nanoarrays with feature sizes as low as 30 nm and periods of 100 nm.
- Demonstrated sub-500 nm alignment accuracy in multilayer printing.
- Successfully imaged streptavidin-labeled nanoarrays using AFM.
Conclusions:
- The proposed nanocontact printing scheme offers a viable method for fabricating high-resolution, high-density nanoarrays.
- The technique shows potential for applications requiring precise nanoscale patterning and multilayer structures.
