Novel Single and Co-Ion Implantation Induced Backside Etch Stop Structures for 3D Multilayer Stacked Package

Yen Shuo Chen, Tzu Wei Chiu, Hua Tai Fan, Yu Chien Ko, Chu Chi Chen, Fu Hsiang Ko

研究成果: Conference contribution同行評審

摘要

This innovative approach proposes a unique method involving single and co-implantation with nitrogen and boron for wafer thinning. Various implant resources, including different etch solutions, such as KOH and KOH-H2O-IPA (hybrid solvents), are utilized in the thinning process. Both co-ion implantation and single-ion implantation demonstrate an etch retardation effect, highlighting their effectiveness in controlling the thinning process. Tests were conducted to measure the etch rate difference between undoped silicon and heavily doped silicon to assess the etch selectivity. Notably, the highest etch selectivity 46 was achieved in the boron-doped structure when etched with the hybrid solvent solution.

原文English
主出版物標題Proceedings - IEEE 74th Electronic Components and Technology Conference, ECTC 2024
發行者Institute of Electrical and Electronics Engineers Inc.
頁面2184-2188
頁數5
ISBN(電子)9798350375985
DOIs
出版狀態Published - 2024
事件74th IEEE Electronic Components and Technology Conference, ECTC 2024 - Denver, United States
持續時間: 28 5月 202431 5月 2024

出版系列

名字Proceedings - Electronic Components and Technology Conference
ISSN(列印)0569-5503

Conference

Conference74th IEEE Electronic Components and Technology Conference, ECTC 2024
國家/地區United States
城市Denver
期間28/05/2431/05/24

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