SAC105 Stencil Printing Process using Cross Viscosity Model

Mohd Syakirin Rusdi; Mohd Zulkifly Abdullah; Mohd Sharizal Abdul Aziz; Muhammad Khalil Abdullah; Muhammad Hafifi Hafiz Ishak; Yu Kok Hwa; Parimalam Rethinasamy; Sivakumar Veerasamy; Damian G Santhanasamy

Authors

Mohd Syakirin Rusdi School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Mohd Zulkifly Abdullah School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Mohd Sharizal Abdul Aziz School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Muhammad Khalil Abdullah School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Muhammad Hafifi Hafiz Ishak School of Aerospace Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Yu Kok Hwa School of Mechanical Engineering, Universiti Sains Malaysia, Engineering Campus, 14300 NibongTebal, Penang, Malaysia
Parimalam Rethinasamy Celestica Malaysia Sdn. Bhd., Plot 15, Jalan Hi-Tech 2/3 Phase I, Kulim Hi-Tech Park, 09000 Kulim, Malaysia
Sivakumar Veerasamy Celestica Malaysia Sdn. Bhd., Plot 15, Jalan Hi-Tech 2/3 Phase I, Kulim Hi-Tech Park, 09000 Kulim, Malaysia
Damian G Santhanasamy Indium Corporation of America, 29 Kian Teck Avenue, 628908 Singapore

Keywords:

SAC105, Rheology, Stencil Printing , SMT , Lead-free Solder Paste

Abstract

The current study shows the used of rheological measurement to get lead-free solder paste SAC105 type 3 viscosity data to be used in numericalmeasurement. A parallel-plate viscometer isused for the rheological measurement. From the measurement data, numerical simulation investigation is accomplishedto study the effect of stencil thickness on SAC105. Cross model is used as the viscosity model for the SAC105. The numerical simulationsusing ANSYS Fluent with Finite Volume Method (FVM)are carried out at five different stencil thickness. The results show that the volume difference between aperture volume and SAC105 volume are low at 0.0762mm and 0.1016mm (14.6% and 13.9 respectively) and the maximum volume difference is at 0.1778mm (45.4%).