کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10409092 | 893935 | 2007 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of weld clip design on thermally induced angular misalignment in laser welding based optoelectronic packaging
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of weld clip design on thermally induced angular misalignment in laser welding based optoelectronic packaging Effect of weld clip design on thermally induced angular misalignment in laser welding based optoelectronic packaging](/preview/png/10409092.png)
چکیده انگلیسی
Thermally-induced angular misalignment of fiber collimators in the laser packaging of optical devices is studied experimentally and numerically in this study. A novel design of arch-shaped weld clips is proposed and tested; after sustaining 10 consecutive accelerated thermal cycles, the proposed clips have been demonstrated to significantly lower angular misalignment, from the original error of 0.023° for a traditional saddle-shaped weld clip, to an improved 0.01°. A non-linear thermal-mechanical coupled finite element analysis (FEA) has also been used to simulate the variation of thermal stresses, the distribution of residual stresses, as well as the accumulated angular misalignment in the package. The results of the simulation have been found to be in full agreement with the experimental measurements. The calculation further indicates that the saturated angular shift is 0.043° for the proposed weld clip, dramatically improved from the 0.065° angular shift for a conventional saddle-shaped clip. The major angular misalignments come from the redistribution of residual stresses in solidification shrinkage, as well as the thermal stresses induced by temperature fluctuation within the package.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators A: Physical - Volume 135, Issue 2, 15 April 2007, Pages 580-586
Journal: Sensors and Actuators A: Physical - Volume 135, Issue 2, 15 April 2007, Pages 580-586
نویسندگان
Xinye Lou, Jing Wu, X. Wu,