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Camber development during cofiring Ag-based low-dielectric-constant ceramic package

Published online by Cambridge University Press:  31 January 2011

Jau-Ho Jean  and
Chia-Ruey Chang
Jau-Ho Jean
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
Chia-Ruey Chang
Affiliation:
Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
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Abstract

Camber (curvature) development during cofiring a two-layered structure of Ag film/low-dielectric-constant, low-temperature cofired ceramic (LTCC) green tape has been investigated. At a given thickness of Ag film, both the camber and camber rate decrease linearly with increasing the square thickness of LTCC. Densification mismatch between Ag and LTCC is attributed to be the root cause for the camber generation during cofiring. Mathematical analysis is made to theoretically describe the camber development, and the results show a fairly good agreement with experimental observations.

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Articles
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Journal of Materials Research , Volume 12 , Issue 10 , October 1997 , pp. 2743 - 2750
Copyright
Copyright © Materials Research Society 1997

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