IEICE Electronics Express
Online ISSN : 1349-2543
LETTER
Analysis and measurement of misalignment effect in inductive-coupling wireless inter-chip connection
Li ZhangXiaowei XuDawei LiJun ZouXuecheng Zou
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JOURNALS FREE ACCESS

2017 Volume 14 Issue 12 Pages 20170476

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Abstract

Inductive-coupling wireless connection is a promising interconnect technology for 3D stacked chips packaging. Misalignment between inductors of transmitter chip and receiver chip reduces the mutual inductance, leading to a signal transmit failure. A method to evaluate the signal attenuation caused by inductors misalignment is proposed based on the mutual inductance calculation. Misalignment tolerance under constant circuit parameters is given. Test chips are designed and fabricated in 180 nm CMOS process to verify the method. Measurements of the test chip show that the proposed method match well with testing results.

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© 2017 by The Institute of Electronics, Information and Communication Engineers
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