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Formation of micro protrusion arrays atop shape memory polymer

N Liu1, Q Xie2, W M Huang1, S J Phee1 and N Q Guo1

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NOTE

Utilizing the significant shape recovery ability (in the order of 100% strain) in shape memory polymers (SMPs), we propose two simple approaches, namely laser heating and indentation, to produce micro-sized protrusion arrays. In the former, after local laser heating a pre-compressed SMP, protrusive bumps can be produced. In the latter, through an indentation-polishing-heating process, various shaped protrusive bumps can be produced. It is to demonstrate that indentation is a more convenient and powerful approach than laser heating, since well controlled, different shaped protrusion arrays can be realized.


PACS

85.85.+j Micro- and nano-electromechanical systems (MEMS/NEMS) and devices

61.80.Ba Ultraviolet, visible, and infrared radiation effects (including laser radiation)

Subjects

Electronics and devices

Condensed matter: structural, mechanical & thermal

Nanoscale science and low-D systems

Dates

Issue 2 (February 2008)

Received 16 November 2007, in final form 30 November 2007

Published 4 January 2008



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