Unraveling diffusion behavior in Cu-to-Cu direct bonding with metal passivation layers

Abstract Cu/SiO2 hybrid bonding presents a promising avenue for achieving high-density interconnects by obviating the need for microbumps and underfills. Traditional copper bonding methods often demand temperatures exceeding 400 °C, prompting recent endeavors to mitigate bonding temperatures through...

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Bibliographic Details
Main Authors: Min Seong Jeong, Sang Woo Park, Yeon Ju Kim, Ji Hun Kim, Seul Ki Hong, Sarah Eunkyung Kim, Jong Kyung Park
Format: Article
Language:English
Published: Nature Portfolio 2024-03-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-024-57379-2