压力诱导直向自组装垂直定向的块共聚合物片用于石版密度乘法
Aum Sagar Panda1, Cheng-Hsun Tung1, Jui-Chang Chuang2
1Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
ACS applied materials & interfaces
|September 29, 2025
概括
本研究介绍了一种压力诱导的定向自组装 (DSA) 方法,用于在块共聚合物 (BCP) 薄膜中创建高度排序的,单向的垂直片. 这种技术增强了用于先进的纳米图案应用的光刻密度乘法.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 聚合物科学 聚合物科学
背景情况:
- 块共聚合物 (BCP) 薄膜对于纳米纹路非常重要.
- 实现BCP片的受控导向是具有挑战性的.
- 现有的方法往往缺乏效率或可扩展性.
研究的目的:
- 开发一种压力诱导的定向自组装 (DSA) 方法,用于在BCP薄膜中产生单向定向的垂直片.
- 为了实现更小的线宽和更高的图案转移的比例.
- 为了增强石版密度的乘法.
主要方法:
- 在TEM网格上使用一个独立的聚乙烯-块-聚二甲基 (PS-b-PDMS) 薄膜.
- 在现场使用,在高真空下进行热的温度解析TEM.
- 应用有限元分析来理解应力分布.
- 将BCP薄膜转移到基板上,用沟进行纳米纹理,然后进行O2反应离子蚀刻.
主要成果:
- 对于单向定向的垂直片,已被证明是压力诱导的DSA.
- 高真空回火创造了中性表面,促进了自我调整.
- 网格边缘的拉伸应力梯度诱导了边缘平行片的对齐.
- 在战中成功制造出明确的SiO2线条图案.
结论:
- 综合方法结合了真空驱动的垂直方向和压力诱导的DSA,用于控制的BCP薄膜方向.
- 这种简单的方法为在先进的光刻应用中制造高度有序的线条图案提供了显著的潜力.
- 这种技术可以精确控制叶片的方向,提高图案传输保真度和密度.
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