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Design and Development of a Three-Dimensionally Printed Microscope Mask Alignment Adapter for the Fabrication of Multilayer Microfluidic Devices
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通过通过面具诱导的热和机械优化减轻叠加错误来提高光刻精度.

Dinghai Rui1,2,3, Libin Zhang1,2,3, Yayi Wei1,2,3

  • 1EDA Center, Institute of Microelectronics of Chinese Academy of Sciences, Beijing 100029, People's Republic of China.

Nanotechnology
|April 15, 2025
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概括

这项研究引入了一种新的面具优化方法,以减少高级光刻的覆盖错误,显著提高纳米印记光刻 (NIL) 和表面等离子体光刻 (SPL) 的精度. 该技术实现了高的补偿率,确保了集成电路制造中的更高准确性.

关键词:
有限元素方法 (FEM)石版精度的精确度 石版精度纳米印记光刻法 (NIL) 是一种覆盖层补偿 覆盖层补偿表面等离子体光刻法 (SPL) 是一种

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 纳米技术 纳米技术
  • 半导体制造业 半导体制造业

背景情况:

  • 收缩技术节点在集成电路制造中需要更高的光刻精度.
  • 传统的叠加错误补偿方法在新兴的光刻技术中面临局限性.
  • 覆盖错误对于实现高精度半导体制造至关重要.

研究的目的:

  • 提出和验证一种面具诱导的热和机械优化方法,以减轻重叠错误.
  • 为了提高纳米印记 lithography (NIL) 和表面等离子体 lithography (SPL) 的光刻精度.
  • 开发一种可靠的解决方案,用于在先进的光刻中补偿覆盖错误.

主要方法:

  • 压力应用方案与局部热效应的集成,以优化面具.
  • 数学建模利用动量平衡假设和线性叠加来进行叠加错误补偿.
  • 统计分析和优化算法,以确定20个关键的补偿参数.
  • 实验验证和有限元法 (FEM) 模拟用于模型验证.

主要成果:

  • 获得了 89.18% 的随机补偿效率, 93.05% 的线性补偿效率, 64.75% 的二次补偿效率和 53.89% 的更高阶叠加错误.
  • 在24个随机测试中,X和Y方向的平均补偿率为91.98%,表明强大的稳定性.
  • FEM模拟证实了0.2nm以下的残余叠加误差补偿,计算到验证的差异低于0.9%.

结论:

  • 拟议的面具诱导的热力学优化有效地减轻了NIL和SPL中的重叠错误.
  • 经过验证的模型提供了一个可靠的解决方案,用于在先进的 lithography 覆盖错误补偿.
  • 为未来的EUV和DUV光刻和集成电路制造研究提供了宝贵的见解.