Issue 39, 2013

Study of demolding in nanoimprint lithography with pseudoplastic metal nanoparticle fluids

Abstract

As a new type of semiconductor processing technology, nanoimprint lithography has attracted growing attention in recent years because of its low cost, high yield, simple process and good fidelity. In order to improve the fidelity of patterning, a novel method, direct metallic pattern nanoimprinting with a pseudoplastic metal nanoparticle fluid as the transfer medium, is proposed and studied. Demolding, which has a great impact on the integrity and fidelity of patterning, is a critical step in nanoimprint lithography. Through the analysis of key parameters, which affect patterning integrity at the initial time of demolding, analytic expressions of the forces acting on the microstructure, e.g., adhesion force, internal force, friction force and other related parameters, as well as the effects of the friction coefficient, the Hamaker constant, the aspect ratios of the patterning, and the size of the metal nanoparticles on the integrity of patterning are obtained and analyzed. In the case of the absence of a bottom fracture in demolding, the analysis results have important guiding significance for the optimization of the parameters set in demolding process.

Graphical abstract: Study of demolding in nanoimprint lithography with pseudoplastic metal nanoparticle fluids

Article information

Article type
Paper
Submitted
07 Jun 2013
Accepted
22 Jul 2013
First published
25 Jul 2013

RSC Adv., 2013,3, 17851-17859

Study of demolding in nanoimprint lithography with pseudoplastic metal nanoparticle fluids

W. Xia, Y. Su, T. Li, C. Liu, D. Li and Z. Duan, RSC Adv., 2013, 3, 17851 DOI: 10.1039/C3RA42822B

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements