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Interface water diffusion in silicon direct bonding
DOI:10.1063/1.4962464.png)
摘要
En 中文
The kinetics of water diffusion through the gap formed by the direct bonding of two silicon wafers is studied using two different techniques. X-ray reflectivity is able to monitor the interface density changes associated with the water front progression. The water intake is also revealed through the defect creation upon annealing, creating a rim-like pattern whose extent also gives the water diffusion law. At room temperature, the kinetics observed by either technique are consistent with the Lucas-Washburn law for diffusion through a gap width smaller than 1 nm, excluding any significant no-slip layer thickness. Published by AIP Publishing.
Keyword:
ROOM-TEMPERATURE
WAFER
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