著者

Kota SHIBA Atsutake KOSUGE Mototsugu HAMADA Tadahiro KURODA

出版者

The Institute of Electronics, Information and Communication Engineers

雑誌

IEICE Transactions on Electronics (ISSN:09168524)

巻号頁・発行日

pp.2022CDS0001, (Released:2022-09-30)

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This paper describes an in-depth analysis of crosstalk in a high-bandwidth 3D-stacked memory using a multi-hop inductive coupling interface and proposes two countermeasures. This work analyzes the crosstalk among seven stacked chips using a 3D electromagnetic (EM) simulator. The detailed analysis reveals two main crosstalk sources: concentric coils and adjacent coils. To suppress these crosstalks, this paper proposes two corresponding countermeasures: shorted coils and 8-shaped coils. The combination of these coils improves area efficiency by a factor of 4 in simulation. The proposed methods enable an area-efficient inductive coupling interface for high-bandwidth stacked memory.