在芯片制造背景下,反光刻法技术 (ILT)
Xiaodong Meng1,2, Cai Chen2, Jie Ni2
1School of Integrated Circuits, Tsinghua University, Beijing 100084, China.
Micromachines
|January 28, 2026
概括
逆光刻技术 (ILT) 为先进的芯片制造提供了卓越的图案准确性和适应性,克服了传统光学近距离校正 (OPC) 的局限性. 本综述系统地总结了ILT.
科学领域:
- 半导体制造业 半导体制造业
- 计算式 lithography 的使用方法.
- 光学工程是指光学工程.
背景情况:
- 先进的半导体节点 (3纳米及以上) 面临由于子波长光刻画的限制而导致的图案精度挑战.
- 传统的光学近距离校正 (OPC) 和分辨率增强技术 (RET) 对于下一代芯片制造是不够的.
- 反向光刻技术 (ILT) 成为计算光刻中的关键解决方案.
研究的目的:
- 从电子设计自动化 (EDA) 产业的角度提供反光刻法技术 (ILT) 的系统审查.
- 将分散的信息技术研究整合到一个连贯的框架中,用于学术和工业应用.
- 分析ILT在先进芯片制造中的发展,应用,挑战和未来前景.
主要方法:
- 解释ILT的工作原理,包括概念,数学表述和水平设置/像素化方法.
- 关于ILT发展的历史概述,强调关键的进展.
- 分析当前的行业应用,如热点固定和EUV石版的使用.
主要成果:
- 与OPC相比,ILT提供了更高的图案准确性,利用精确的光学模型来纠正复杂的石版问题.
- 通过从目标晶圆图案的逆向工程来优化口罩设计,ILT提供了更广泛的过程窗口.
- 对于新兴的光刻场景,如高NAEUV和扩展的DUV节点,ILT表现出了增强的适应性.
结论:
- 关键的ILT瓶包括高计算复杂性,面具制造困难,模型校准挑战和市场采用速度缓慢.
- 未来的方向包括混合ILT-OPC-SMO策略,增强模型准确性,AI/ML集成和GPU加速.
- 本综述提供了对ILT技术环境的全面了解,促进其在先进芯片制造领域的工业采用.
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