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Sains Malaysiana 45(8)(2016): 1275–1279
Nanoindentation
Approach on Investigating Micromechanical Properties of Joining from Green
Solder Materials
(Kaedah
Perlekukan Nano dalam Mengkaji Sifat Mikromekanik Sambungan Bahan
Aloi Pateri Hijau)
MARIA ABU BAKAR1, AZMAN JALAR1,2*, ABDUL RAZAK DAUD2, ROSLINA ISMAIL1,
NUR AZIDA CHE LAH3 & NAJIB SAEDI IBRAHIM4
1Institute
of Microengineering and Nanoelectronics (IMEN), Universiti Kebangsaan Malaysia
43600
Bangi, Selangor Darul Ehsan, Malaysia
2School
of Applied Physics, Faculty of Science and Technology, Universiti Kebangsaan
Malaysia
43600
Bangi, Selangor Darul Ehsan, Malaysia
3Fabrication
& Joining Section, Universiti Kuala Lumpur Malaysia France Institute, Section
14, Jalan Teras Jernang, 43650 Bandar Baru Bangi, Selangor Darul Ehsan, Malaysia
4Redring
Solder (M) Sdn. Bhd., Lot17486, Jalan Dua, Taman Selayang Baru, 68100 Batu
Caves, Selangor Darul Ehsan, Malaysia
Received:
20 April 2015/Accepted: 12 November 2015
ABSTRACT
This work investigates the micromechanical properties of
Sn96.5Ag3.0Cu (SAC 305) on Immersion Tin (ImSn)
surface finished after subjected to high temperature storage (HTS)
at 180°C for 200 to 1000 h period. Nanoindentation
approach was used to measure the micromechanical properties of the solder. It
was observed that the indentation depth and plastic depth were increased and a
clear trend of decreasing hardness as opposed to the increasing reduced modulus
as the HTS time lengthened. The plasticity-asscociated
properties become stronger meanwhile the elasticity-associated properties
decreased with the HTS time. These findings indicate that
nanoindentation approach can clearly determine the plastic and elastic
deformation occurance throughout the test.
Keywords: Lead-free solder; micromechanical properties;
nanoindententation
ABSTRAK
Penyelidikan ini mengkaji sifat mikromekanik
Sn96.5Ag3.0Cu (SAC 305) pada substrat dengan kemasan
permukaan rendaman timah (ImSn) selepas didedahkan pada penyimpanan suhu tinggi
(HTS)
pada suhu 180°C selama 200 hingga 1000 jam. Kaedah perlekukan nano
digunakan untuk mengukur sifat mikromekanik aloi pateri. Didapati bahawa kedalaman perlekukan dan plastik meningkat dan
terdapat tren kekerasan yang jelas menurun bertentangan dengan modulus
terkurang dengan pemanjangan masa HTS. Sifat
berkaitan plastik menjadi semakin kuat dan sebaliknya bagi sifat elastik yang
menurun dengan pemanjangan masa HTS. Keputusan
menunjukkan pendekatan menggunakan kaedah perlekukan nano dapat mengenal pasti
kewujudan canggaan plastik dan elastik sepanjang uji kaji.
Kata kunci: Pateri bebas plumbum; perlekukan
nano; sifat mikromekanik
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*Corresponding author; email: azmn@ukm.edu.my
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