Juyana A. Wahab
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Preferred name
Juyana A. Wahab
Official Name
A. Wahab, Juyana
Alternative Name
A Wahab, Juyana
Wahab, Juyana A.
Wahab, J. A.
Main Affiliation
Scopus Author ID
36783614000
Researcher ID
AAY-8291-2021

Research Output
Now showing 1 - 2 of 2
  • Publication
    Effect of surface-modified copper substrate by photolithography on the solderability of lead-free solder alloy
    (Springer, 2023-07)
    Nurul Aida Husna Mohd Mahayuddin
    ;
    Juyana A. Wahab
    ;
    Siti Faqihah Roduan
    ;
    Mohd Arif Anuar Mohd Salleh
    Various modifications of copper substrates have been developed for soldering applications due to their promising properties. The present study aimed to investigate the effect of dimple micro-texture on a copper substrate surface on soldering. Photolithography technique was used to fabricate a dimple micro-texture onto copper substrate. After surface texturing, the copper substrate was reflowed with Sn–0.7Cu solder. The surface microstructural was determined using optical microscopy (OM), the 3D surface profiler, and visual tests. The spreading area of the Sn–0.7Cu solder and the copper substrate was also examined. In comparison with Sn-0.7Cu solder on textured surface, TD500 has larger spreading area as the diameter was large nearly equivalent to non-textured surface. However, Sn–0.7Cu textured substrate exhibits low spreading area than non-textured surface that is beneficial for solderability properties.
  • Publication
    Effectiveness of dimple microtextured copper substrate on performance of Sn-0.7Cu solder alloy
    ( 2022)
    Siti Faqihah Roduan
    ;
    Juyana A. Wahab
    ;
    Mohd Arif Anuar Mohd Salleh
    ;
    Nurul Aida Husna Mohd Mahayuddin
    ;
    Mohd. Mustafa Al Bakri Abdullah
    ;
    Aiman Bin Mohd Halil
    ;
    Amira Qistina Syamimi Zaifuddin
    ;
    Mahadzir Ishak Muhammad
    ;
    Andrei Victor Sandu
    ;
    Mădălina Simona Baltatu
    ;
    Petrica Vizureanu
    This paper elucidates the influence of dimple-microtextured copper substrate on the performance of Sn-0.7Cu solder alloy. A dimple with a diameter of 50 µm was produced by varying the dimple depth using different laser scanning repetitions, while the dimple spacing was fixed for each sample at 100 µm. The dimple-microtextured copper substrate was joined with Sn-0.7Cu solder alloy using the reflow soldering process. The solder joints’ wettability, microstructure, and growth of its intermetallic compound (IMC) layer were analysed to determine the influence of the dimple-microtextured copper substrate on the performance of the Sn-0.7Cu solder alloy. It was observed that increasing laser scan repetitions increased the dimples’ depth, resulting in higher surface roughness. In terms of soldering performance, it was seen that the solder joints’ average contact angle decreased with increasing dimple depth, while the average IMC thickness increased as the dimple depth increased. The copper element was more evenly distributed for the dimple-micro-textured copper substrate than its non-textured counterpart.
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