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AFM lithography combined with optical lithography

Authors: M. Ishibashi; S. Heike; T. Hashizume;

AFM lithography combined with optical lithography

Abstract

Reports on a hybrid method of AFM lithography and optical lithography that increases the drawing speed and decreases the drawing length. Advanced devices, such as quantum ones, have both nanometer-scale structures and large area structures, such as contact pads. It takes a long time to fabricate all the patterns using AFM lithography alone. It is preferable to combine AFM lithography with optical lithography. In this way, AFM lithography is used for nanometer structures only. When this hybrid process is used, the most significant problem is aligning the patterns produced by optical lithography and AFM lithography. To solve this problem, we use small step structures fabricated by slight development on the resist surface, fabricated by optical-lithography exposure. The positional information of the pattern structure in the resist film, fabricated by using optical lithography, is obtained by observing the steps with AFM. The additional patterning is performed by using AFM lithography. Patterns can be observed without exposure, since the force needed to observe the surface and that for the exposure are different.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
Average
Average
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