Document Detail

Pattern uniformity in large-area ultraviolet nano-imprinting by a cylindrically inflated flexible mold under low pressure.
MedLine Citation:
PMID:  22966567     Owner:  NLM     Status:  In-Process    
This paper shows a novel nano-imprint method with a polydimethylsiloxane (PDMS) replica mold that was bonded on a cylindrically inflated polycarbonate (PC) film via a low air pressure. The PDMS mold, which was deformed in terms of its cylindrical shape, made a line contact with a substrate from the center region and the contact region, then expanded gradually to the outside of the substrate when the contact force increased. This contact procedure squeezed the resin that was dropped on the substrate from the center to the outside, which prevented the trapping of air bubbles while the cavities were filled with the patterns on the PDMS mold. The main characteristic of the proposed process was that the nano-imprint can be realized under a low pressure, compared to conventional processes. We will show the system that was implemented under the proposed process concept and the patterns that were transferred in an ultraviolet curable resin under pressure conditions of less than 5 kPa.
Geehong Kim; Mira Jeong; Hyungjun Lim; Jaejong Lee; Kee Bong Choi; Lee-Mi Do
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  12     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-09-12     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5336-41     Citation Subset:  IM    
Nano-Mechanical Systems Research Division, Korea Institute of Machinery and Materials, 104 Sinseongno, Yuseong-gu, Daejeon 305-343, Republic of Korea.
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