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Journal of Electronic Materials

, Volume 41, Issue 7, pp 1898–1906 | Cite as

Men Surfing Seaside for Quick Women Shoe Water Shoes Outdoor Swimming Black Drying Beach Shoes Walking Yoga 5xRwAwB7

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  • F. Wafula
  • L. Yin
  • P. Borgesen
  • D. Andala
  • N. Dimitrov
  • F. Wafula
    • 1
  • L. Yin
    • 2
  • P. Borgesen
    • 3
  • D. Andala
    • 4
  • N. Dimitrov
    • 1
  1. 1.Department of ChemistryState University of New York at BinghamtonBinghamtonUSA
  2. 2.Advanced Research on Electronics Assembly, ConsortiumUniversal Instruments CorporationConklinHigh Chunky Toe Solid Heel Stylish Top Suede Lace Low Pointed Pumps CHFSO Up Black Women's pwvqBFnCUSA
  3. 3.Department of Systems Science and Industrial EngineeringState University of New York at BinghamtonBinghamtonWalking Shoes Outdoor Drying Seaside Beach for Men Quick Surfing Women Shoe Water Black Yoga Swimming Shoes USA
  4. 4.Department of Chemical EngineeringPennsylvania State UniversityUniversity ParkUSA
Article

This paper presents a comprehensive study of the effect of poly(ethylene glycol) (PEG) degradation on the void formation known to take place sporadically at the interface between electroplated Cu and Pb-free solder. Thorough chemical analysis of our plating solution, carried out at different times of the deposition process by matrix-assisted laser desorption ionization time-of-flight mass spectroscopy, reveals a dramatic shift in the peaks to lower mass range with time. Scanning electron microscopy cross-sectional images of solder joints with Cu samples that have been plated at different times in the course of solution aging show a decrease in void formation. A decreasing magnitude of the deposition overpotential also seen during aging suggests that, breaking down to lower-molecular-weight fragments, PEG loses its suppression effect and likely has lower impact on the voiding propensity. This indirect correlation is confirmed further by the use of plating solutions containing PEG with preselected molecular weight. We also report on the effect of the surface area-to-solution volume ratio on PEG degradation studied by comparative experiments performed in a 50-mL bath with a rotating disc electrode and in a larger cell (Hull cell) with volume of 267 mL. The results show that, at fixed charge per unit volume, PEG degrades at a greatly accelerated rate in the Hull cell featuring higher electrode surface-to-solution volume ratio. Analysis of solder joints with accordingly grown Cu layers suggests that the voiding decreases faster with the accelerated rate of PEG degradation.

Keywords

Cu electroplating  PEG degradation  impurity incorporation  solder joints  voiding 

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References

  1. 1.
    K. Zeng, T. Chiu, R. Stierman, D. Edwards, and K. Ano, Proceedings of the Electronic Components and Technology Conference, IEEE (2004), p. 1256. Google Scholar
  2. 2.
    K.J. Zeng, R. Stierman, T.C. Chiu, D. Edwards, K. Ano, and K.N. Tu, J. Appl. Phys. 97, 024508 (2005). CrossRefGoogle Scholar
  3. 3.
    T.T. Mattila and J.K. Kivilahti, J. Electron. Mater. 35, 250 (2006). CrossRefGoogle Scholar
  4. Quick Walking Beach Shoes Shoe Outdoor Black Swimming Surfing for Shoes Men Seaside Women Drying Water Yoga 4.
    L.H. Xu and J.H.L. Pang, Proceedings of the Electronic Components and Technology Conference, IEEE (2006), p. 275. Google Scholar
  5. 5.
    P. Borgesen, L. Yin, P. Kondos, D.W. Henderson, G. Servis, J. Therriault, J. Wang, and K. Srihari, 57th Electronic Components & Technology Conference, 2007 Proceedings (2007), p. 136. Slippers Slippers Couple C Gray Slippers Unisex Trendy House Soft X Indoor SPA Cotton Stripe zzPaZ
  6. 6.
    L.H. Xu, J.H.L. Pang, and F.X. Che, J. Electron. Mater. 37, 880 (2008). CrossRefGoogle Scholar
  7. 7.
    C.Y. Liu, K.N. Tu, T.T. Sheng, C.H. Tung, D.R. Frear, and P. Elenius, J. Appl. Phys. 87, 750 (2000). CrossRefKidskin Trotters Soft Women's Pewter Janet Metallic Ankle black Boot xxrFvB
  8. 8.
    K. Zeng and K.N. Tu, Mater. Sci. Eng. R Rep. 38, 55 (2002). CrossRefGoogle Scholar
  9. 9.
    W. Yang, R.W. Messler, and L.E. Felton, J. Electron. Mater. 23, 765 (1994). CrossRefGoogle Scholar
  10. 10.
    I. De Sousa, L. Gorrell, and D.W. Henderson, CMAP International Conference on Lead-Free Soldering, Toronto, May 16–18, ed. L.J. Turbini (2006). Google Scholar
  11. 11.
    T. Laurila, V. Vuorinen, and J.K. Kivilahti, Mater. Sci. Eng. R Rep. 49, 1 (2005). CrossRefGoogle Scholar
  12. 12.
  13. 13.
    J.Y. Kim and J. Yu, Appl. Phys. Lett. 92, 092109 (2008). CrossRefWomen's Classic Desert Vivobarefoot Brown Gobi II Boot Light ZaqwnEvwS
  14. 14.
    Y. Liu, J. Wang, L. Yin, P. Kondos, C. Parks, P. Borgesen, D.W. Henderson, E.J. Cotts, and N. Dimitrov, J. Appl. Electrochem. 38, 1695 (2008). CrossRefGoogle Scholar
  15. 15.
    Y. Liu, L. Yin, S. Bliznakov, P. Kondos, P. Borgesen, D.W. Henderson, C. Parks, J. Wang, E.J. Cotts, and N. Dimitrov, IEEE Trans. Compon. Packag. Technol. 33, 127 (2010). CrossRefGoogle Scholar
  16. 16.
    I.E. Anderson and J.L. Harringa, Shoes Shoe Walking Drying Surfing Outdoor Quick Black Seaside Women for Men Swimming Beach Yoga Water Shoes J. Electron. Mater. 35, 94 (2006). CrossRefGoogle Scholar
  17. 17.
    M.G. Cho, S.K. Kang, D.Y. Shih, and H.M. Lee, J. Electron. Mater. 36, 1501 (2007). CrossRefBlack Browning Trail Glenwood Size Women's Shoes Coral 6 4qIO7q
  18. 18.
    F.J. Wang, Z.S. Yu, and K. Qi, J. Alloy. Compd. 438, 110 (2007). CrossRefGoogle Scholar
  19. 19.
    C.E. Ho, S.C. Yang, and C.R. Kao, J. Mater. Sci.: Mater. Electron. 18, 155 (2007). CrossRefGoogle Scholar
  20. 20.
  21. 21.
  22. 22.
    F. Wafula, Y. Liu, L. Yin, S. Bliznakov, P. Borgesen, E. Cotts, and N. Dimitrov, ECS Trans. 19, 13 (2009). Google Scholar
  23. 23.
    F. Wafula, Y. Liu, L. Yin, S. Bliznakov, P. Borgesen, E.J. Cotts, and N. Dimitrov, J. Electrochem. Soc. 157, D111 (2010). CrossRefGoogle Scholar
  24. 24.
    F. Wafula, Y. Liu, L. Yin, P. Borgesen, E.J. Cotts, and N. Dimitrov, J. Appl. Electrochem. 41, 469 (2011). Fashion Carolbar Mid Shoes Buckle Heel Beige Casual Retro Women's fwq7WqCEGoogle Scholar
  25. 25.
    D. Stoychev and C. Tsvetanov, Men Yoga Shoes Swimming for Water Surfing Women Drying Quick Beach Shoe Walking Seaside Black Shoes Outdoor J. Appl. Electrochem. 26, 741 (1996). CrossRefGoogle Scholar
  26. 26.
    P.M. Vereecken, R.A. Binstead, H. Deligianni, and P.C. Andricacos, IBM J. Res. Dev. 49, 3 (2005). CrossRefGoogle Scholar
  27. 27.
    W.P. Dow, M.Y. Yen, W.B. Lin, and S.W. Ho, Quick Water Shoe Surfing Drying Beach Shoes Outdoor Shoes for Men Yoga Seaside Black Women Swimming Walking J. Electrochem. Soc. 152, C769 (2005). CrossRefGoogle Scholar
  28. 28.
    K. Doblhofer, S. Wasle, D.M. Soares, K.G. Weil, and G. Ertl, J. Electrochem. Soc. 150, C657 (2003). Womens Platform Toe on Elegant T Slip Warm Snow White Anti Round Slip Lining amp;Mates Fur Comfort Boots Apwq45pGoogle Scholar
  29. 29.
    L. D’Urzo, H.H. Wang, C. Tang, A. Pa, and C. Zhi, Walking Surfing Seaside Shoes Drying Black Men Shoes Shoe Yoga Outdoor Beach Water Quick for Swimming Women J. Electrochem. Soc. 152, C697 (2005). Beach Shoes Women Yoga Men Quick Shoes Outdoor Swimming Black Shoe for Seaside Drying Surfing Walking Water CrossRefGoogle Scholar
  30. Shoe Outdoor Surfing Yoga Quick Seaside Black Beach Men Drying Walking Women for Shoes Swimming Shoes Water 30.
    Y.S. Won, D. Cho, Y. Kim, J. Lee, and S.S. Park, J. Appl. Polym. Sci. 117, 2083 (2010). Google Scholar
  31. 31.
  32. 32.
    M.B. Vukmirovic, N. Vasiljevic, N. Dimitrov, and K. Sieradzki, J. Electrochem. Soc. 150, B10 (2003). CrossRefGoogle ScholarCute Birds Treetop Sport shoes womens Euixo Parrot Green running Comfort Coral lightweight RFqznBE
  33. 33.
    T.P. Moffat, D. Wheeler, M.D. Edelstein, and D. Josell, Women Drying Shoes Swimming Walking Beach Black Shoe Yoga for Seaside Quick Surfing Water Men Outdoor Shoes IBM J. Res. Dev. 49, 19 (2005). CrossRefGoogle Scholar
  34. 34.
    C. Gabrielli, P. Mocoteguy, H. Perrot, A. Zdunek, and D.N. Sanz, J. Electrochem. Soc. 154, D13 (2007). CrossRefAddic Brown Ted Luichiny Women's Ankle Boot 6UqPpq

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Influence of Poly(ethylene glycol) Degradation on Voiding Sporadically Occurring in Solder Joints with Electroplated Cu

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