A study of physical design guidelines in thruchip inductive coupling channel

Li Chung Hsu, Junichiro Kadomoto, So Hasegawa, Atsutake Kosuge, Yasuhiro Take, Tadahiro Kuroda

Research output: Contribution to journalArticle

Abstract

ThruChip interface (TCI) is an emerging wireless interface in three-dimensional (3-D) integrated circuit (IC) technology. However, the TCI physical design guidelines remain unclear. In this paper, a ThruChip test chip is designed and fabricated for design guidelines exploration. Three inductive coupling interface physical design scenarios, baseline, power mesh, and dummy metal fill, are deployed in the test chip. In the baseline scenario, the test chip measurement results show that thinning chip or enlarging coil dimension can further reduce TCI power. The power mesh scenario shows that the eddy current on power mesh can dramatically reduce magnetic pulse signal and thus possibly cause TCI to fail. A power mesh splitting method is proposed to effectively suppress eddy current impact while minimizing power mesh structure impact. The simulation results show that the proposed method can recover 77% coupling coefficient loss while only introducing additional 0.5% IR-drop. In dummy metal fill case, dummy metal fill enclosed within TCI coils have no impact on TCI transmission and thus are ignorable.

Original languageEnglish
Pages (from-to)2584-2591
Number of pages8
JournalIEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
VolumeE98A
Issue number12
DOIs
Publication statusPublished - 2015 Dec 1

Fingerprint

Eddy currents
Metals
Mesh
Chip
Integrated circuits
Eddy Currents
Coil
Scenarios
Baseline
Design
Splitting Method
Thinning
Integrated Circuits
Three-dimensional
Coefficient
Simulation

Keywords

  • 3-D IC
  • Inductive coupling interface
  • TCI
  • ThruChip
  • Tsv

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Graphics and Computer-Aided Design
  • Applied Mathematics
  • Signal Processing

Cite this

A study of physical design guidelines in thruchip inductive coupling channel. / Hsu, Li Chung; Kadomoto, Junichiro; Hasegawa, So; Kosuge, Atsutake; Take, Yasuhiro; Kuroda, Tadahiro.

In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E98A, No. 12, 01.12.2015, p. 2584-2591.

Research output: Contribution to journalArticle

Hsu, Li Chung ; Kadomoto, Junichiro ; Hasegawa, So ; Kosuge, Atsutake ; Take, Yasuhiro ; Kuroda, Tadahiro. / A study of physical design guidelines in thruchip inductive coupling channel. In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. 2015 ; Vol. E98A, No. 12. pp. 2584-2591.
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