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Citation
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HERO ID
2166500
Reference Type
Journal Article
Title
Effect of TSV Interposer on the Thermal Performance of FCBGA Package
Author(s)
Hoe, Y; Yue, TG; Damaruganath, P; Chong, C; Lau, JH; Zhang Xiaowu; Vaidyanathan, K; IEEE
Year
2009
Page Numbers
778-786
Web of Science Id
WOS:000288404200140
Abstract
In this paper, the effect of TSV (Through Silicon Via) parameters on the equivalent thermal conductivity of TSV interposer and the effect of the TSV interposer on the thermal performance of the package have been elaborated. The modeling approach using in this paper includes compact modeling for the package and detailed modeling for the TSV interposer. The objective of compact modeling is to study the effect of TSV interposer on thermal performance of the package, while the objective of detailed modeling is to extract the equivalent thermal conductivity of TSV interposer which is used for compact modeling. The proposed package in this study includes a large die with fine pitch, a silicon interposer with TSV, a 1-2-1 buildup substrate and a PCB board. In addition, to evaluate the thermal performance of the proposed package, a similar package without the TSV interposer is also modeled in this study for comparison. The results of detailed modeling show that the equivalent thermal conductivity of TSV interposer can be increased by reducing the pitch and via ratio of TSV, as well as increasing the plating thickness of partial filled TSV and using highly conductive filler material. Furthermore, the results of compact modeling reveal that the proposed TSV interposer improves the thermal performance of the package. The thermal resistance of the package decreases when the interposer size and thickness increase, and the equivalent thermal conductivity of TSV interposer has negligible effect on thermal performance of the package.
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IRIS
•
PCBs
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