多层介质晶圆键合技术的发展

Lan Peng, Soon-Wook Kim, F. Inoue, Teng Wang, A. Phommahaxay, P. Verdonck, A. Jourdain, J. de Vos, E. Sleeckx, H. Struyf, Andy Miller, G. Beyer, E. Beyne, Mike Soules, S. Lutter
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引用次数: 6

摘要

我们通过两种集成方案研究了多层介质晶圆键合,为实现多器件层垂直集成提供了不同的途径。评估和优化了关键工艺步骤,以在不同的键合层上实现无空隙键合。同时,在背面加工过程中发现了与晶圆边缘有关的问题,并对其影响进行了分析。最后,成功地展示了N=4堆叠,并通过介电键合形成了高质量的界面。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of multi-stack dielectric wafer bonding
We investigate multi-stack dielectric wafer bonding through two integration schemes, which provide different paths to realize vertical integration of multiple device layers. Key process steps are evaluated and optimized to enable void-less bonds at different bonding layers. Meanwhile, issues related to the wafer edge are discovered during the backside processing and the impact is analyzed. Finally, N=4 stacks are successfully demonstrated with high quality interfaces formed by dielectric bonding.
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