Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Vanlai Pham"'
Publikováno v:
2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm).
Electronic devices suffer from many different types of shock environments. Especially during transportation, hugely large impacts and amplified shock accelerations are transmitted to electronic devices and container, resulting in mechanical failure o
Publikováno v:
2020 IEEE 70th Electronic Components and Technology Conference (ECTC).
Reliability of solder joint is one of the most concerns in the electronic packages. The trend of smart electronic devices decreases in size and thickness and demands more and more functionality which has required electronic packages to achieve the hi
Publikováno v:
2020 IEEE 70th Electronic Components and Technology Conference (ECTC).
In this study, an energy-based three-dimensional (3D) model is created using Surface Evolver to predict the passive components solder joint shape after reflow soldering. The developed model considers the surface tension and hydrostatic forces on the
Publikováno v:
2020 IEEE 70th Electronic Components and Technology Conference (ECTC).
In this paper, we focus on the Electromigration (EM) with three different types of solder systems, homogeneous SAC305, homogeneous SnBi58 and SAC305-SnBi58 Partial mixed. The acceleration EM test was conducted with the sample top temperature at 100C
Publikováno v:
IEEE Transactions on Components, Packaging and Manufacturing Technology. 8:678-688
This paper presents an accurate experimental method to determine the effective strain for the advanced electronic packages with heterogeneous structure or multiple composite layers when the out-of-plane deformation has evident effects on the in-plane
Autor:
Vanlai Pham, Seungbae Park, Jiefeng Xu, Ke Pan, Huayan Wang, Gamal Refai-Ahmed, Jing Wang, Hohyung Lee
Publikováno v:
2019 IEEE 69th Electronic Components and Technology Conference (ECTC).
The conversion from using tin-lead solder joint to lead-free solder joint has raised many pad cratering failures for electronics manufacturing. This phenomenon has become more severe to the 2.5D package which has a large heatsink attached on the top.
Autor:
Gamal Refai-Ahmed, Vanlai Pham, Jiefeng Xu, Seungbae Park, Scott McCann, Jing Wang, Huayan Wang, Stephen R. Cain
Publikováno v:
2019 IEEE 69th Electronic Components and Technology Conference (ECTC).
In this study, an accelerated Electromigration (EM) test was performed. The test vehicle has four types of common interconnect structure. The first one is a classic Ball Grid Array (BGA), short for BGA; the second one is a solder ball with a copper v
Publikováno v:
2019 IEEE 69th Electronic Components and Technology Conference (ECTC).
In this work, a study of different substrate models on package warpage is performed. Three different substrate models are built: First, the package substrate is simplified and modeled as one effective layer. Second, a three-layer model is proposed wi
Autor:
Scott McCann, Gamal Refai-Ahmed, Huayan Wang, Seungbae Park, Stephen R. Cain, Vanlai Pham, Jiefeng Xu
Publikováno v:
2019 IEEE 69th Electronic Components and Technology Conference (ECTC).
In this study, an Electromigration (EM) acceleration test was conducted at 150 oC ambient temperature with 12A current. The solder joint was made of SAC305. Time 0 void evolution was observed by X-ray. A Finite Element Analysis (FEA) based on Atom Fl
Publikováno v:
Microelectronics Reliability. 112:113791
Moisture induced failure is one of the major reliability concerns in electronic packaging. This research provides a comprehensive solution for modeling the moisture induced delamination in electronic packaging during solder reflow. Existing finite el