A computer controlled patterning system for scanning probe microscopes
β Scribed by A Lindell; P Davidsson; J Pekola
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 477 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0167-9317
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β¦ Synopsis
A pattern generator system for lithography based on scanning force microscopes has been developed. Patterns to be miniaturized onto a chip can be scanned or drawn by any common graphical program. The pattern file is used to control a voltage simultaneously with the microscope probe scanning the surface of the substrate. The voltage can be used in numerous different ways to manipulate the substrate, depending on the lithographic method preferred. We have demonstrated the system by adding this voltage to the z-piezo voltage of the scanner, in order to make the probe plow the pattern into a film spinned on the sample. To maintain linearity in zooming in and rotating the scanning direction we have constructed a hardware calibration for our microscope scanner.
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Using an atomic force microscope (AFM) operating in air, we locally modify thin films of ebeam-deposited Cr and Ti by applying voltage pulses between the AFM tip and the sample, which is positively biased with respect to the tip. The modifications consist in anodization and/or mechanical deformation
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