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플립칩 패키지 BGA의 전단강도 시험법 표준화
Regulation in Shear Test Method for BGA of Flip-chip Packages 원문보기

마이크로전자 및 패키징 학회지 = Journal of the Microelectronics and Packaging Society, v.17 no.3, 2010년, pp.1 - 9  

안지혁 (성균관대학교 신소재공학과) ,  김광석 (성균관대학교 신소재공학과) ,  이영철 (성균관대학교 신소재공학과) ,  김용일 (성균관대학교 마이크로 전자 및 반도체 패키징 기술개발 사업단) ,  정승부 (성균관대학교 마이크로 전자 및 반도체 패키징 기술개발 사업단)

초록
AI-Helper 아이콘AI-Helper

본고에서는 마이크로 접합을 위한 솔더볼 또는 범프의 기계적 신뢰성 평가에 사용되는 전단시험의 표준화 규격에 대해 고찰해 보았다. 전단시험에서 중요한 실험 조건 중 하나인 전단속도는 low speed shear test와 high speed shear test로 구분 된다. 전단속도가 빨라질수록 솔더볼에 가해지는 충격이 커지기 때문에, 소성변형에 대한 저항성이 커지게 되고, 전단강도가 커지게 된다. 그리고 이 결과는 전산모사를 통하여 확인할 수 있다. 또 하나의 중요한 실험 조건으로 전단툴의 높이가 있다. 일반적으로 전단툴의 높이가 높을수록 전단강도 값은 낮아지게 되는데, 여러 국제 규격에서 제시한 솔더볼 높이의 25% 지점을 초과한 높이에서 전단시험을 진행했을 때에는 전단시험이 진행되는 접합 계면의 면적이 줄어들어 실험결과의 신뢰도가 떨어지게 된다. 이와 같이 전단속도와 툴의 높이 등의 실험조건들이 구체적으로 규격화 되어있지 않은 채 진행 되면, 실험 결과의 신뢰도가 떨어지고, 각 계에서 진행된 연구결과를 상호 비교하기가 어렵다. 따라서 효율성을 고려한 간접 시험법 개발 및 최신 패키징기술을 반영된 특성평가 시험법의 규격, 그리고 다양한 시험 표준화는 결국 마이크로 전자패키지의 고 신뢰성으로 나타날 것이라 생각된다.

Abstract AI-Helper 아이콘AI-Helper

We reported the methodology for the shear test which is one of the evaluation procedure for mechanical reliability of flip-chip package. The shear speed and the tip height are found to be two significant experimental parameters in the shear test. We investigated how these two parameters have an infl...

AI 본문요약
AI-Helper 아이콘 AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

문제 정의

  • 따라서 본고에서는 이러한 전단시험의 평가 기준에 따라서 발생할 수 있는 문제를 직접실험과 유한요소해석(finite element analysis)을 이용한 전산모사의 간접적인 결과를 통해 비교·검토하고 새로운 전단시험의 표준화 규격의 필요성에 대해서 보고하고자 한다.
  • 3에서 보여주는 타 연구자의 통계표에서 알 수 있듯이, 전단높이 또한 일관성 없이 진행되고 있다. 따라서 전단높이의 변화가 전단강도에 어떠한 영향을 미치는지 그 차이를 비교 검토하였다.
  • 본고에서는 마이크로 접합을 위한 솔더볼 또는 범프의 기계적 신뢰성 평가에 사용되는 전단시험의 표준화 규격에 대해 고찰해 보았다. 전단시험에서 중요한 실험 조건 중 하나인 전단속도는 low speed shear test와 high speed shear test로 구분 된다.
본문요약 정보가 도움이 되었나요?

질의응답

핵심어 질문 논문에서 추출한 답변
2006년에 개정된 전단시험법에서 전단속도는 어떻게 구분하여 규정하고 있는가? 그 이후 Table 2에서 알 수 있듯이 2006년에 평가법의 일부가 개정되어 전단속도와 전단높이에 대한 새로운 항목의 규정이 추가되었다. 2006년 이전에는 전단속도에 대한 규정 항목이 없었으나, 현재는 Table 2와 같이 ‘low speed shear test’와 ‘high speed shear test’로 구분하여 그 속도의 범위를 규정하고 있다. 그리고 전단높이의 경우에는 Table 2에서 알 수 있듯이 솔더볼 높이의 25 % 이하, 50 µm높이 이상에서 전단시험을 하도록 규정되어 있었으나, 이와 같이 실험 할 경우 크기 200 µm이하의 솔더볼의 전단시험은 어려웠다.
전자부품에서 강조되는 기계적인 특성평가는 무엇인가? 특히 기계적인 특성 평가방법의 경우, 전자패키지의 구조상 IC칩과 기판간의 열팽창계수 차이로 인하여 계면에서 발생하는 전단응력이 발생한다. 따라서 일반적인 재료의 대표적인 기계적인 특성평가 방법인 인장강도(tensile strength)특성과는 다르게 전자부품에서는 전단강도(shear strength)가 강조되고 있고, 전자부품에서는 ‘ball shear test’법으로 정의되고 있다.8,12)
전단시험법에서 전단높이에 대한 규정이 2006년 이후 어떻게 개정되었는가? 그리고 전단높이의 경우에는 Table 2에서 알 수 있듯이 솔더볼 높이의 25 % 이하, 50 µm높이 이상에서 전단시험을 하도록 규정되어 있었으나, 이와 같이 실험 할 경우 크기 200 µm이하의 솔더볼의 전단시험은 어려웠다. 따라서 2006년 이후에 전체 솔더볼 크기의 25%미만, 10% 권장으로 측정 방법의 항목이 개정 되었다.
질의응답 정보가 도움이 되었나요?

참고문헌 (93)

  1. S. Y. Oh, Electronic Packaging Technology Roadmap, pp. 5- 80, Korea Microelectronics and Packaging Society (2009). 

  2. K. S. Kim, Y. C. Lee, J. H. Ahn, "Effect of Process Parameters on TSV Formation Using Deep Reactive Ion Etching", J. Kor. Inst. Met.& Mater., (in press). 

  3. J. H. Lee, N. H. Kang, C. W. Lee, J. H. Kim, "Necessity of Low Melting Temperature Pb-free Solder Alloy and Characteristics of Representative Alloys", Int. J. of KWS, 24, 2 (2006). 

  4. J. W. Kim, S. B. Jung, "Experimental and finite element analysis of the shear speed effects on the Sn-Ag and Sn-Ag-Cu BGA solder joints", Materials Science and Engineering A, 371 (1-2), 267 (2004). 

  5. S. S. Ha, J. K. Jang, S. O. Ha, J. W. Yoon, H. J. Lee, J. H. Joo, Y. H. Kim, S. B. Jung, "Effect of multiple reflows on interfacial reaction and shear strength of Sn-Ag electroplated solder bumps for flip chip package", Microelectronic Engineering, 87 (3), 517 (2010). 

  6. J. W. Kim, Y. C. Lee, S. S. Ha, S. B. Jung, "Failure behaviors of BGA solder joints under various loading conditions of high-speed shear test", J. Mater. Sci. : Materials in electronics, 20(1), 17 (2009). 

  7. E. Kaulfersch, S. Rzepka, V. Ganeshan, A. Muller, B. Michel, "Dynamic mechanical behavior of SnAgCu BGA solder joints determined by fast shear tests and FEM simulations", proc. 8th Thermal, Mechanical and Multi-Physics Simulation Experiments in Microelectronics and Micro-Systems (Euro- SimE), London, 1-4, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2007). 

  8. J. W. Kim, S. B. Jung, "Optimization of shear test for flip chip solder bump using 3-dimensional computer simulation", Microelectronic Engineering, 82 (3-4), 554 (2005). 

  9. JEDEC Standard JESD22-B117A, "Solder ball shear", (2006). 

  10. J. W. Kim, S. B. Jung, "Characterization of the shear test method with low melting point In-48Sn solder joints", Materials Science and Engineering A, 397(1-2), 145 (2005). 

  11. J. W. Kim, S. B. Jung, "Optimization of the shear test method for flip chip solder bump", Spring Conference of KWS, Samcheok, 18, Journal of KWS, (2006). 

  12. J. W. Joo, D. H. Kim, "Thermo-mechanical Deformation Analysis of Flip Chip PBGA Packages Subjected to Temperature Change", J. Microelectron. Packag. Soc., 13(4), 17 (2006). 

  13. J. K. Jang, S. S. Ha, S. O. Ha, J. G. Lee, J. T. Moon, J. H. Park, W. C. Seo, S. B. Jung, "Mechanacal reliability of Sn- 37Pb BGA solder joints with high-speed shear test", J. Microelectron. Packag. Soc., 15(4), 65 (2008). 

  14. H. Tsukamoto, T. Nishimura, S. Suenaga, K. Nogita, "Shear and tensile impact strength of lead-free solder ball grid arrays placed on Ni(P)/Au surface-finished substrates", Materials Science and Engineering B, 171(1-3), 162 (2010). 

  15. J. W. Kim, S. B. Jung, "Failure mechanism of Pb-bearing and Pb-free solder joints under high-speed shear loading", Met. Mater. Int., 16(1), 7 (2010). 

  16. E. P. Leng, W. T. Ling, N. Amin, I. Ahmad, T. Y. Han, C. W. Chiao, A. S. M. A. Haseeb, "BGA lead-free C5 solder system improvement by Germanium addition to Sn3.5Ag and Sn-3.8Ag-0.7Cu solder alloy", Proc. 11th Electronics Packaging Technology Conference (EPTC), Singapore, 82, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2009). 

  17. T. Fouzder, A. K. Gain, Y. C. Chan, A. Sharif, W. K. C. Yung, "Effect of nano $Al_{2}O_{3}$ addition on the microstructure, hardenss and shear strength of eutectic Sn-9Zn solder on Au/Ni metallized Cu pads", Microelectronics Reliability (In press). 

  18. S. S. Ha, J. Y. Sung, J. W. Yoon, S. B. Jung, "Influence of current density on mechanical reliability of Sn-3.5Ag BGA solder joint", Microelectronic Engineering (In press). 

  19. L. Nie, "Temperature cycling reliability of reballed and reworked ball grid array packages in SnPb and SAC assembly", Ph.D. Thesis, pp.22-27, University of Maryland, Maryland (2010). 

  20. H. J. Lin, T. H. Chuang, "Effect of Ce and Zn additions on the microstructure and mechanical properties of Sn-3Ag- 0.5Cu solder joints", J. Alloys Compd, 500(2), 167 (2010). 

  21. H. J. Lin, T. H. Chuang, "Interfacial microstructure and bonding strength of Sn-3Ag-0.5Cu and Sn-3Ag-0.5Cu-0.5Ce-xZn solder BGA packages with immersion Ag surface finish", Microelectronics Reliability (In press). 

  22. Y. Y. Shiue, T. H. Chuang, "Effect of La addition on the interfacial intermetallics and bonding strengths of Sn-58Bi solder joints with Au/Ni/Cu pads", J. Alloys Compd, 491(1-2), 610 (2010). 

  23. S. J. Jo, A. R. Lee, C. Y, Kang, "Improvement of the solder joint strength in a SAC solder ball to a ENIG substrate using LF hydrogen radical treatment", Proc. 60th Electronic Components and Technology Conference (ECTC), Las Vegas, 1752, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2010). 

  24. S. W. Chuung, M. J. Kim, "Investigation of Pb-free solder interconnect under drop impact by ball pull and shear tests", Proc. 60th Electronic Components and Technology Conference (ECTC), Las Vegas, 916, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2010). 

  25. Y. Zhang, Y. Xu, "The experimental and numerical investigation on shear behaviour of solder ball in a wafer level chip scale package", Proc. 60th Electronic Components and Technology Conference (ECTC), Las Vegas, 1746, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2010). 

  26. K. J. Wang, J. G. Duh, B. Sykes, D. Schade, "Impact testing of Sn-3.0Ag-0.5Cu solder with Ti/Ni(V)/Cu under bump metallization after aging at 150", Journal of Electronic Materials (In press). 

  27. W. H. Wu, C. S. Lin, S. H. Huang, C. E. Ho, "Influence of palladium thickness on the soldering reactions between Sn- 3Ag-0.5Cu and Au/Pd(P)/Ni(P) surface finish", Journal of Electronic Materials (In press). 

  28. A. K. Gain,T. Fouzder, A. Sharif, W. K. C. Yung, "Investigation of small Sn-3.5Ag-0.5Cu additions on the microstructure and propertie of Sn-8Zn-3Bi solder on Au/Ni/Cu pads", J. Alloys Compd, 489(2), 678 (2010). 

  29. S. S. Ha, J. K. Jang, S. O. Ha, J. W. Kim, J. W. Yoon, B. W. Kim, S. K. Park, S. B. Jung, "Mechanical property evaluation of Sn-3.0Ag-0.5Cu BGA solder joints using highspeed ball shear test", Journal of Electronic Materials, 38(12), 2489 (2009). 

  30. W. H. Bang, C. U. Kim, S. H. Kang, K. H. Oh, "Fracture mechanics of solder bumps during ball shear testing: effect of bump size", Journal of Electronic Materials, 38(9), 1896 (2009). 

  31. M. O. Alam, H. Lu, C. Bailey, Y. C. Chan, "Fracture mechanics analysis of solder joint intermetallic compounds in shear test", Computational Materials Science, 45(2), 576 (2009). 

  32. K. S. Lin, H. Y. Huang, C. P. Chou, "Interfacial reaction between Sn-1Ag-0.5Cu(-Co) solder and Cu substrate with Au/Ni surface finish during reflow reaction", J. Alloys Compd, 471(1-2), 291 (2009). 

  33. J. W. Yoon, S. B. Jung, "Interfacial reaction and mechanical reliability of eutectic Sn-0.7Cu/immersion Ag-plated Cu solder joint", Materials Science and Technology, 25(12), 1478 (2009). 

  34. A. K. Gain, Y. C. Chan, A. Sharif, N. B. Wong, W. K. C. Yung, "Interfacial microstructure and shear strength of Ag nano particle doped Sn-9Zn solder in ball grid array packages", Microelectronics Reliability, 49(7), 746 (2009). 

  35. A. K. Gain, Y. C. Chan, A. Sharif, N. B. Wong, W. K. C. Yung, "Effect of small Sn-3.5Ag-0.5Cu addition on the structure annd properties of Sn-9Zn solder in ball grid array packages", Microelectronic Engineering, 86(11), 2347 (2009). 

  36. P. Liu, P. Yao, J. Liu, "Effects of multiple reflows on interfacial reaction and shear strength of SnAgCu and SuPb solder joints with different PCB surface finishes", J. Alloys Compd, 470(1-2), 188 (2009). 

  37. C. C. Jain, S. S. Wang, H. M. Wu, T. H. Chuang, "Intermetallic reactions in a Sn-51In solder BGA package with immersion Ag surface finish", Journal of Chinese Institute of Engineers, 32(2), 229 (2009). 

  38. P. Yao, P. Liu. J. Liu, "Interfacial reaction and shear strength of SnAgCu-xNi/Ni solder joints during aging at 150", Microelectronic Engineering, 86(10), 1969 (2009). 

  39. P. Yao, P. Liu. J. Liu, "Evolutions of the interface and shear strength of SnAgCu-xNi solder and Cu substrate during aging at 150", J. Alloys Compd, 486(1-2), 474 (2009). 

  40. T. H. Chuang, C. C. Jain, S. S. Wang, "Intermetallic compounds formed in In-3Ag solder BGA packages with ENIG and ImAg surface finished", Journal of Materials Engineering and Performance, 18(8), 1133 (2009). 

  41. C. Y. Tan, J. G. Duh, "Characterization of the effect of shape memory alloy on solder joint strength through modeling and testing", Journal of Electronic Materials, 38(12), 2496 (2009). 

  42. C. N. Peng, J. G. Duh, "Reaction mechanism and mechanical properties of the flip-chip Sn-3.0Ag-0.5Cu solder bummp with Cu/Ni-xCu/Ti underbump metallization after various reflows", Journal of Electronic Materials, 38(12), 2543 (2009). 

  43. E. H. Wong, S. K. W. Seah, W. D. V. Driel, J. F. J. M. Caers, N.. Owens, Y. S. Lai, "Advances in the drop-impact reliability of solder joints for mobile applications", Microelectronics Reliability, 49(2), 139 (2009). 

  44. S. K. Das, A. Sharif, Y. C. Chan, N. B. Wong, W. K. C. Yung, "Effect of Ag micro-particles content on the mechanical strength of the interfacial formed between Sn-Zn binary solder and Au/Ni/Cu bond pads", Microelectonic Engineering, 86(10), 2086 (2009). 

  45. X. Gu, Y. C. Chan, D. Yang, B. Y. Wu, "The shearing behavior and microstructure of Sn-4Ag-0.5Cu solder joints on a Ni- P-carbon nanotubes composite coating", J. Alloys Compd, 468(1-2), 553 (2009). 

  46. M. S. Yeh, J. T. Chiang, "Mechanical properties of ternary Sn- In-Ag ball-grid array assemblies at ambient and elevated temperatures", Journal of Materials Engineering and Performance, 18(8), 1073 (2009). 

  47. S. Y. Chang, Y. C. Huang, Y. M. Lin, "Mechanical property and fracture behavior characterizations of 96.5Sn-3.0Ag- 0.5Cu solder joints", J. Alloys Compd, 490(1-2), 508 (2009). 

  48. A. K. Gain, Y. C. Chan, W. K. C. Yung, "Effect of nano Ni additions on the structure and properties of Sn-9Zn and Sn- Zn-3Bi solders in Au/Ni/Cu ball grid array packages", Materials Science and EngineeringB, 162(2), 92 (2009). 

  49. I. Y. Jung, M. G. Cho, H. M. Lee, "Wetting properties and interfacial reactions of mechanically alloyed Cu5Zn8-bearing Pb-free solders on a copper substrate", Journal of Electronic Materials, 38(11), 2301 (2009). 

  50. M. G. Cho, S. K. Kang, S. K. Seo, D. Y. Shih, H. M. Lee, "Interfacial reactions and microstructures of Sn-0.7Cu-xZn solders with Ni-P UBM during thermal aging", Journal of Electronic Materials, 38(11), 2242 (2009). 

  51. K. J. Wang, J. G. Duh, "Shear and pull testing of Sn-3.0Ag- 0.5Cu solder with Ti/Ni(V)/Cu underbump metallization during aging" Journal of Electronic materials, 38(12), 2534 (2009). 

  52. J. Shen, Y. C. Chan, "Effects of ZrO2 nanoparticles on the mechanical properties of Sn-Zn solder joints on Au/Ni/Cu pads", J. Alloys Compd, 477(1-2), 552 (2009). 

  53. E.H. Wong, R. Rajoo, S.K.W. Seah, C.S. Selvanayagam, W.D. van Driel, J.F.J.M. Caers, X.J. Zhao, N. Owens, L.C. Tan, M. Leoni, P.L. Eu, Y.-S. Lai, C.-L. Yeh, "Correlation studies for component level ball impact shear test and board level drop test", Microelectronics Reliability, 48(7), 1069 (2008). 

  54. J. W. Yoon, H. S. Chun, S. B. Jung, "Correlation between interfacial reactions and shear strengths of Sn-Ag-(Cu and Bi- In)/ENIG plated Cu solder joints", Materials Science and Engineering, 483-484, 731 (2008). 

  55. J. S. Lee, K. M. Chu, R. Patzelt, D. Manessis, A. Ostmann, D. Y. Jeon, "Effects of Co addition in eutectic Sn-3.5Ag solder on shear strength and microstructural development", Microelectronic Engineering, 85(7), 1577 (2008). 

  56. J. W. Kim, J. K. Jang, S. O. Ha, S. S. Ha, D. G. Kim, S. B. Jung, "Effect of high-speed loading conditions on the fracture mode of the BGA solder joint", Microelectronics Reliability, 48(11-12), 1882 (2008). 

  57. J. W. Yoon, B. I. Noh, Y. H. Lee, H. S. Lee, S. B. Jung, "Effects of isothermal aging and temperature-humidity treatment of substrate on joint reliability of Sn-3.0Ag-0.5Cu/OSPfinished Cu CSP solder joint", Microelectronics Reliability, 48(11-12), 1864 (2008). 

  58. J. M. Koo, Y. N. Kim, J. W. Yoon, D. G. Kim, B. I. Noh, J. W. Kim, J. H. Moon, S. B. Jung, "Effect of displacement rate on bump shear properties of electroplated solder bumps in flip-chip packages", Microelectronics Reliability, 483-484, 620 (2008). 

  59. T. C. Chai, D. Q. Yu, J. Lau, W. H. Zhu, X. R. Zhang, "Angled high strain rate shear testing for SnAgCu solder balls ", Proc. 58th Electronic Components and Technology Conference (ECTC), Orlando, 623, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  60. C. H. Fu, L. Y. Hung, D. S. Jiang, C. C. Chang, Y. P. Wang, C. S. Hsiao, "Evaluation of new substrate surface finish: Electroless nickel/electroless palladium/immersion gold (ENEPIG)", Proc. 58th Electronic Components and Technology Conference (ECTC), Orlando, 1931, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  61. D. Xie, C. Chin, K. H. Ang, D. Lau, D. Shangguan, "A new method to evaluate BGA pad cratering in lead-free soldering", Proc. 58th Electronic Components and Technology Conference (ECTC), Orlando, 893, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  62. X. J. Wang, Z. G. Wang, J. K. Shang, "Effect of displacement rate on lap shear test of SAC solder ball joints", proc. International Conference on Electronic Packaging Technology & High Density Packaging (ICEPT-HDP), Shanghai, 1-4, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  63. W. Sun, W. H. Zhu, E. S. W. Poh, H. B. Tan, R. T. Gan, "Study of five substrate pad finishes for the co-design of solder joint reliability under board-level drop and temperature cycling test conditions", proc. International Conference on Electronic Packaging Technology & High Density Packaging (ICEPT-HDP), Shanghai, 1-8, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  64. F. M. Nor, L. W. Keat, N. Kamsah, M. N. Tamin, "Damage Mechanics Model for Interface Fracture Process in Solder Interconnects", proc. 10th Electronics Packaging Technology Conference (EPTC), Shanghai, 821, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  65. T. S. Wang, S. C. Liu, Y. L. Huang, K. L. Lin, Y. S. Lai, "The microstructure and fracture behavior of Sn-3Ag-0.5Cu solder joints", proc. Electronic Materials and Packaging (EMAP), Taipei, 293, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  66. C. Y. Lin, Y. R. Chen, G. S. Shen, D. S. Liu, C. Y. Kuo, C. L. Hsu, "Mechanical behavior of lead-free solder joints under high speed shear test at different pad metallization substrate", proc. Electronic Materials and Packaging (EMAP), Taipei, 120, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  67. C. W. Lee, L. Y. Hung, C. C. Chang, Y. P. Wang, C. S. Hsiao, "The Investigation of Intermetallic Compound Morphology Effect on the Solder Joint Performance", proc. 3rd International Microsystems, Packaging, Assembly & Circuits Technology Conference (IMPCT), Taipei, 263, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  68. C. N. Peng, J. G. Duh, "Mechanical test after temperature cycling on lead-free Sn-3Ag-0.5Cu solder joint", proc. International Conference on Electronic Packaging Technology & High Density Packaging (ICEPT-HDP), Shanghai, 1-4, IEEE Components, Packaging and Manufacturing Technology Society (CPMT) (2008). 

  69. M. C. Yew, C. Y. Chou, K. N. Chiang, "Reliability assessment for solders with a stress buffer layer using ball shear strength test and board-level finite element analysis", Microelectronics Reliability, 47(9-11), 1658 (2007). 

  70. J. M. Koo, S. B. Jung, "Effect of displacement rate on ball shear properties for Sn-37Pb and Sn-3.5Ag BGA solder joints during isothermal aging", Microelectronics Reliability, 47(12), 2169 (2007). 

  71. Y. S. Lai, H. C. Chang, C. L. Yeh, "Evaluation of solder joint strengths under ball impact test", Microelectronics Reliability, 47(12), 2179 (2007). 

  72. C. L. Yeh, Y. S. Lai, H. C. Chang, T. H. Chen, "Empirical correlation between package-level ball impact test and boardlevel drop reliability", Microelectronics Reliability, 47(7), 1127 (2007). 

  73. J. W. Yoon, S. B. Jung, "Solder joint reliability evaluation of Sn-Zn/Au/Ni/Cu ball-grid-array package during aging", Materials Science and Engineering: A, 452-453, 46 (2007). 

  74. D. G. Kim, J. W. Kim, S. S. Ha, B. I. Noh, J. M. Koo, D. W. Park, M. W. Ko, S. B. Jung, "Effect of reflow numbers on the interfacial reaction and shear strength of flip chip solder joints", J. Alloys compd., 458(1-2), 253 (2008). 

  75. P. Yao, P. Liu, J. Liu, "Effects of multiple reflows on intermetallic morphology and shear strength of SnAgCu.xNi composite solder joints on electrolytic Ni/Au metallized substrate", J. Alloys compd., 462(1-2), 73 (2008). 

  76. C. K. Wong, J. H. L. Pang, J. W. Tew, B. K. Lok, H. J. Lu, F. L. Ng, Y. F. Sun, "The influence of solder volume and pad area on Sn-3.8Ag-0.7Cu and Ni UBM reaction in reflow soldering and isothermal aging", Microelectronics Reliability, 48(4), 611 (2008). 

  77. J. W. Yoon, B. I. Noh, Y. H. Lee, H. S. Lee, S. B. Jung, "Effects of isothermal aging and temperature-humidity treatment of substrate on joint reliability of Sn-3.0Ag-0.5Cu/OSPfinished Cu CSP solder joint", Microelectronics Reliability, 48(11-12), 1864 (2008). 

  78. J. W. Yoon, S. B. Jung, "Effect of immersion Ag surface finish on interfacial reaction and mechanical reliability of Sn- 3.5Ag-0.7Cu solder joint", J. Alloys compd., 458(1-2), 200 (2008). 

  79. J. W. Yoon, H. S. Chun, B. I. Noh, J. M. Koo, J. W. Kim, H. J. Lee, S. B. Jung, "Mechanical reliability of Sn-rich Au- Sn/Ni flip chip solder joints fabricated by sequential electroplating method", Microelectronics Reliability, 48(11-12), 1857 (2008). 

  80. J. W. Kim, S. B. Jung, "Effect of bonding force on the reliability of the flip chip packages employing anisotropic conductive film with reflow process", Materials Science and Engineering: A, 452-453, 267 (2007). 

  81. J. M. Koo, S. B. Jung, "Effect of displacement rate on ball shear properties for Sn-37Pb and Sn-3.5Ag BGA solder joints during isothermal aging", Microelectronics Reliability, 47(12), 2169 (2007). 

  82. S. S. Ha, D. G. Kim, J. W. Kim, J. W. Yoon, J. H. Joo, Y. E. Shin, S. B. Jung, "Interfacial reaction and joint reliability of fine-pitch flip-chip solder bump using stencil printing method", Microelectronic Engineering, 84(11), 2640 (2007). 

  83. A. Sharif, Y. C. Chan, "Effect of substrate metallization on interfacial reactions and reliability of Sn-Zn-Bi solder joints", Microelectronic Engineering, 84(2), 328 (2007). 

  84. J. W. Yoon, S. B. Jung, "Solder joint reliability evaluation of Sn.Zn/Au/Ni/Cu ball-grid-array package during aging", Materials Science and Engineering: A, 452-453, 46 (2007). 

  85. Y. H. Lee, H. T. Lee, "Shear strength and interfacial microstructure of Sn-Ag-xNi/Cu single shear lap solder joints", Materials Science and Engineering: A, 444(1-2), 75 (2007). 

  86. J. Y. H. Chia, B. Cotterell, A. Y. H. Cheong, "The specific work of fracture in ball shear test and the integrity of solder balls", Materials Science and Engineering: A, 428(1-2), 67 (2006). 

  87. J. W. Kim, S. B. Jung, "Reexamination of the solder ball shear test for evaluation of the mechanical joint strength", Int. J. Solids Structures, 43(7-8), 1928 (2006). 

  88. J. Y. H. Chia, B. Cotterell, T. C. Chai, "The mechanics of the solder ball shear test and the effect of shear rate", Materials Science and Engineering: A, 417(1-2), 259 (2006). 

  89. J. W. Yoon, S. B. Jung, "Reliability studies of Sn-9Zn/Cu solder joints with aging treatment", J. Alloys compd., 407(1-2), 141 (2006). 

  90. P. C. Shih, K. L. Lin, "Interfacial microstructure and shear behavior of Sn.Ag-Cu solder balls joined with Sn.Zn.Bi paste", J. Alloys compd., 422(1-2), 153 (2006). 

  91. J. W. Yoon, S. B. Jung, "High temperature reliability and interfacial reaction of eutectic Sn-0.7Cu/Ni solder joints during isothermal aging", Microelectronics and Reliability, 46(5- 6), 905 (2006). 

  92. W. M. Chen, P. McCloskey, S. C. O'Mathuna, "Isothermal aging effects on the microstructure and solder bump shear strength of eutectic Sn37Pb and Sn3.5Ag solders", Microelectronics and Reliability, 46(5-6), 896 (2006). 

  93. J. W. Kim, D. G. Kim, S. B. Jung, "Evaluation of displacement rate effect in shear test of Sn-3Ag-0.5Cu solder bump for flip chip application", Microelectronics Reliability, 46(2-4), 535 (2006). 

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