研究生: |
林振興 Jhen-sing Lin |
---|---|
論文名稱: |
封裝矽膠與金線弧度的變化對LED壽命之影響性 The Fatigue Study of Silicone Packages Materials and Gold wire bonding on Performance of Light-Emitting Diodes Modules |
指導教授: |
林舜天
Shun-Tian Lin |
口試委員: |
周賢鎧
none 林寬泓 none |
學位類別: |
碩士 Master |
系所名稱: |
工程學院 - 機械工程系 Department of Mechanical Engineering |
論文出版年: | 2011 |
畢業學年度: | 99 |
語文別: | 中文 |
論文頁數: | 75 |
中文關鍵詞: | 老化測試 、可靠度測試 、金線長度 、LED |
外文關鍵詞: | Gold wire bonding |
相關次數: | 點閱:397 下載:0 |
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本研究主要是針對LED的設計參數-封裝矽膠與金線弧度的變化,利用高溫點亮測試及冷熱衝擊測試進行產品的可靠度驗證,找出該兩項參數與LED產品可靠度的影響性。兩款不同的封裝矽膠,首先以高溫點亮的老化測試進行試驗,由LED的溫度及電壓( DC Forward Current)兩項數值的變化,發現高溫點亮的測試方法並無法在短時間有效找出導致LED可靠度的變異;因而,接著採用高低溫急速變化的冷熱衝擊測試,驗證出該測試項目可以有效幫助於縮短試驗時間,找出LED的失效。
在第二項控制變數中,以冷熱衝擊測試來實驗4種不同的LED金線弧度設計的變化組合,由試驗找出其中最佳的設計。由測試結果發現,金線長度較長的兩種形式LED容易受到環境應力影響導致產品失效,而另外兩款的金線弧度設計,即Type C “chip與外圍電極連接弧度小,chip與chip連接弧度正常”以及Type D “chip與外圍電極連接弧度正常,chip與chip連接弧度小”,則是可以完全的通過冷熱衝擊測試。
This study focuses on the design parameters of silicone packages materials and gold wire bonding on performance of LED modules; we used the high-temperature aging testing and thermal shock testing to verify the reliability testing criteria of LED modules. First, doing the high temperature aging testing with different LED packages materials, during the testing observing the values of LED's temperature and the forward voltage, based on the testing records from the tests it shows that the high-temperature testing couldn’t point out the failure of the LED modules properly during while testing; but after using of the thermal shock test, it is more effectively to find out the failure of LED modules in the short time.
Secondly, to do the thermal shock testing with four different types of gold wire bonding design, accounting to the testing and validation results that we find out the better way are the two types of golden wire bonding design; they are Type C and Type D.
1. 蔡宛霖,「壓力、濕度與溫度對高功率LED 構裝體的可靠度影
響」,長庚大學碩士論文,2008。
2. 陳俊宏,「高功率LED 構裝體與其模組之熱場、應力場及可靠度
分析」,長庚大學博士論文,2010。
3. Nguyen, L. T., Danker, A., Santhiran, N., and Shervin, C. R., “Flow
Modeling of Wire Sweep During Molding of Integrated Circuits,”
ASME Winter Annual Meeting, ASME, New York, pp. 27, 1992.
4. Han, S., 1994, “A Study on Plastic Encapsulation of Semiconductor
Chips,” Cornell Injection Molding Program Technical Report #77.
5. 陳勇仁,「白光LED 陶瓷支架光學模擬優化及可靠度測試之研
究」,國立成功大學碩士論文,2009。
6. Kenichi Hayashi, “Improvement of Fatigue Life of Solder Joints by
Thickness Control of Solder with Wire Bump Technique”, 2002
Electronic Components and Technology Conference.
7. Han, S., Wang, K. K., and Crouthamel, D. L., “Wire-Sweep Study
Using an Industrial Semiconductor- Chip-Encapsulation Operation”,
ASME J. Electron. Packag., 119, pp. 247–254, 1997.
8. Wu, J.H.; Tay, A.A.O.; Yeo, K.S.; Lim, T.B., “Three-Dimensional
Modeling of Wire Sweep Incorporating Resin Cure”, IEEE
transactions on components, packaging, and manufacturing
technology. Part B, Advanced packaging, v 21, n 1, p 65-72, Feb
1998.
9. S. Ramminger, et al., “Reliability Model for Al Wire Bonds
Subjected to Heel Crack Failures,” Microelectronics Reliability, vol.
40, pp. 1521-1525, 2000.
10. M. Ishiko, et al., “Design Concept for Wire-bonding Reliability
Improvement by Optimizing Position in Power Devices,”
Microelectronics Reliability, vol. 37, pp. 262-268, 2006.
11. R. K. Reusch, “Wire Sweep in Small Outline Package,” Semicond.
Int., pp. 139-145, Apr. 1987.
12. L. T. Nguyen, “Wire Bond Behavior during Molding Operations of
Electronic Packages,” Polym. Eng. Sci., vol. 28, pp. 926–943, 1988.
13. A. A. O. Tay, K. S Yeo, J. H. Wu, and T. B. Lim, “Wirebond
Deformation during Molding of IC Packages,” Adv. Electron.
Packag., ASME, vol. 4-1, pp. 233–241, 1993.
14. 鍾政勳,「高功率白光發光二極體之玻璃螢光體製作及可靠度研
究」,國立中山大學碩士論文,2010。
15. 陳緯守,「氮化鎵系列覆晶式發光二極體於亮度與可靠度之研
究」,國立成功大學碩士論文,2008。
16. 羅杏芬,「矽膠封裝膠材對於發光二極體特性 與壽命之影響」,
中興大學碩士論文,2006。
17. O. C. Zienkiewicz, et al., The Finite Element Method,
Butterworth-Heinemann, 2005.
18. H. Takahashi, et al., “Thermal Fatigue Life Simulation for Sn-Ag-Cu
Lead-Free Solder Joints,” Japan Institute of Electronics Packaging,
vol. 7, pp. 308-313, 2004.
19. 宋文堯,「LED老化壽命測試」,北台灣科學技術學院碩士論文,
2009。
20. 林育寬,「高功率發光二極體高溫加速老化之失效分析」,國立中
山大學碩士論文,2007。
21. 吳亮億,「類神經網路應用在發光二極體可靠度試驗之預估」,義
守大學碩士論文,2008。
22. 林重文,「高效率LED之老化診斷與加速老化測試」,元智大學碩
士論文,2009。
23. 蔡俊欽,「高功率發光二極體模組光功率與光場高溫老化可靠度
之研究」,國立中山大學博士論文,2009。
24. E. Fred Schubert, Light-Emitting Diodes, 2nd edition, New York:
Cambridge University Press (2006).
25. 張祐銜、劉正毓,發光二極體的封裝技術,《科學發展》435 期。
26. 林川發,發光二極體的照明應用,《科學發展》435期。
27. COB (Chip On Board) 製程介紹/簡介/注意事項,
http://findliving.blogspot.com/2008/08/cob-chip-on-board-i.html.
28. “Cree® XLamp® LED Reliability,” Cree, Inc., (2006).
29. 韓明哲,可靠度預估,中華民國品質學會,2002。
30. LED照明標準及品質研發聯盟,“LED 元件與模組一般壽命實驗
標準草案”,2009年4月。
31. Lumileds product application brief AB05“Luxeon Custom Design
Guide” http://www.lumileds.com/solutions.
32. 鍾正發,「高功率發光二極體熱傳途徑分析研究」,國立中山大學
碩士論文,2007。
33. Shapiro. Andrew A, Tudryn, Carissa, Schatzel, Donald, and Tseng,
Stephen, “Electronic Packaging Materials for Extreme, Low
Temperature, Fatigue Environments,” IEEE Transactions on
Advanced Packaging, v 33, n 2, p 408-420, May 2010.
34. Li, Xin; Chen, Xu; Yu, Dun-Ji; Lu, Guo-Quan, “Study on Adhesive
Reliability of Low-Temperature Sintered High Power LED
Modules,” 2010 11th International Conference on Electronic
Packaging Technology and High Density Packaging, ICEPT-HDP
2010, p 1371-1376, 2010.
35. Tay, A.A.O. ; Yeo, K.S.; Wu, J.H., “The Effect of Wirebond
Geometry and Die Setting on Wire Sweep,” IEEE transactions on
components, packaging, and manufacturing technology. Part B,
Advanced packaging, v 18, n 1, p 201-209, Feb 1995.