An Improved Dimensional Measurement Method of Staircase Patterns With Higher Precision in 3D NAND

3D NAND is a great architectural innovation in the field of flash memory. The staircase for control gate is a unique and important process in the manufacturing of 3D NAND. The staircase is employed to form the electrical connection between the control gate and contact. The current method used to mea...

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Bibliographic Details
Main Authors: Peizhen Hong, Zhiguo Zhao, Jun Luo, Zhiliang Xia, Xiaojing Su, Libin Zhang, Chunlong Li, Zongliang Huo
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9149612/