Abstract

为了解决纳米压印过程中填充率低下,压印图案易发生形变等问题,提出了一种新型振动辅助纳米压印方法。在压印过程中对压印胶施加横向的振动,增大了压印力,从而提高了填充率。运用时域有限差分法(finite difference time domain, FDTD),在波长300 nm~1 000 nm范围内,数值模拟了不同光栅结构,得到了光栅结构参数变化对其吸收率的影响规律。在振动辅助装置上进行振动辅助纳米压印实验,实验结果表明:与传统纳米压印技术相比,压印胶的填充率提高了30%,并改善了压印后微结构的表面形貌,减少了缺陷。

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