Optimization of a continuous hot embossing process for fabrication of micropyramid structures in thermoplastic sheets

被引:7
|
作者
Haponow, Luke [1 ]
Kettle, Jeff [1 ,2 ]
Allsop, John [3 ]
机构
[1] Bangor Univ, Sch Comp Sci & Elect Engn, Dean St, Bangor LL57 1UT, Gwynedd, Wales
[2] Univ Glasgow, James Watt Sch Engn, Glasgow G12 8QQ, Lanark, Scotland
[3] Ultra Precis Structured Surfaces Ltd, OpTIC Ctr, St Asaph Business Pk, St Asaph LL17 0JD, Denbig, Wales
来源
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B | 2021年 / 39卷 / 01期
关键词
DIAMOND; MICRO; REPLICATION; GENERATION; ARRAYS;
D O I
10.1116/6.0000551
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Reported is the manufacture and optimization of inverted micropyramid cavity structures into thermoplastic sheets using roll-to-roll (R2R) embossing. To manufacture the master, an ultraprecision diamond machining method was applied to create seamless surface structures into a copper-coated hot embossing roller. Using the hot embossing process, the roller features were successfully transferred to 2 mm thick polymethyl methacrylate (PMMA) sheets. Optimization of the R2R control process variables was conducted using Taguchi's numerical methods, which showed the importance of the roller temperature for a successful pattern transfer. The work presents a novel fabrication technique that allows microstructures to be manufactured into thick PMMA sheets in a continuous process.
引用
收藏
页数:8
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