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RESEARCH PAPERS

Reliability of an 1657CCGA (Ceramic Column Grid Array) Package With 95.5SN3.9AG0.6CU Lead-Free Solder Paste on PCBS (Printed Circuit Boards)

[+] Author and Article Information
John Lau

Agilent Technologies, Inc. 5301 Stevens Creek Blvd., Santa Clara, CA 95052

Walter Dauksher

Agilent Technologies, Inc. 4380 Ziegler Rd., Fort Collins, CO 80525

J. Electron. Packag 127(2), 96-105 (Jun 03, 2005) (10 pages) doi:10.1115/1.1846069 History: Revised May 17, 2004; Received October 24, 2004; Online June 03, 2005
Copyright © 2005 by ASME
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References

Figures

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Dimensions and pin-out of the 1657CCGA
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Median rank failure data as a function of Weibull fit
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Comparison of two- and three-parameter Weibull life distributions
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90% confidence failure data
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The finite element model
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Detail of the refined mesh
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The moduli of the solders
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Vertical displacement of the substrate tip (eutectic fillets at the PCB)
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Vertical displacement of the substrate tip (lead-free fillets at the PCB)
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Maximum creep shear strain at the PCB side of the outermost column with eutectic PCB fillets
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Maximum creep shear strain at the PCB side of the outermost column with lead-free PCB fillets
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Creep shear strain in the outermost column with eutectic PCB fillets and subject to a temperature range of 0 to 100°C at 14 400 s
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Creep shear strain in the outermost column with lead-free PCB fillets and subject to a temperature range of 0 to 100°C at 14 400 s
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Maximum shear stress at the PCB side of the outermost column with eutectic PCB fillets
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Maximum shear stress at the PCB side of the outermost column with lead-free PCB fillets
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Shear stress in the outermost column with eutectic PCB fillets and subject to a temperature range of 0 to 100°C at 14 400 s
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Shear stress in the outermost column with lead-free PCB fillets and subject to a temperature range of 0 to 100°C at 14 400 s
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Cross section of the failed columns
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Hysteresis at the PCB side of the outermost column with eutectic PCB fillets
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Hysteresis at the PCB side of the outermost column with lead-free PCB fillets
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Critical strain energy density at the PCB side of the outermost column with eutectic PCB fillets
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Critical strain energy density at the PCB side of the outermost column with lead-free PCB fillets
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ΔW as a function of ΔT in the high lead column

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