Y.C. Hsu

The University of Hong Kong, Hong Kong, Hong Kong

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Publications (2)2.11 Total impact

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    ABSTRACT: The study aims at developing a next-generation flip chip (FC) packaging technology that employs a novel anisotropic conductive adhesive (ACF) made of unidirectional Co-nanowire-reinforced polymer nanocomposite, and moreover, exploring the associated process-induced, thermal-mechanical behaviors during bonding process. For carrying out the process simulation, a process-dependent finite element modeling (FEM) methodology is proposed. The investigation starts from the theoretical and experimental assessments of the elastic properties the nanoscale Co metal using molecular dynamics (MD) simulations and nanoindentation testing, respectively, followed by the determination of the thermal-mechanical material properties of the nanocomposite, using the proposed FEM-based effective modeling approach. The predicted results are compared with those obtained from the widely-used rule-of-mixture (ROM) technique and existing analytical models, and also, with those from experimental measurements. At last, factors that most influence on the thermal-mechanical behaviors of the novel technology are also investigated through parametric FE analysis and Taguchi method.
    Microsystems, Packaging, Assembly & Circuits Technology Conference, 2008. IMPACT 2008. 3rd International; 11/2008
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    ABSTRACT: We presented a simple and economic method of preparing articulating antibiotic-loaded cement spacers for treatment of infection after total knee arthroplasty. From 1996 to 2004, 28 infected total knee arthroplasties were treated with 2-stage reimplantation. Static spacers were used in 7 knees, and articulating spacers were used in 21 knees. A minimum of 2 years' follow-up after final treatment was evaluated. In the static group, 1 (14%) knee had recurrence of infection. In the articulating group, 2 (9%) knees had recurrence of infection with the original organism. Patients receiving articulating spacer had better range of motion, better knee score, and less bone loss than patients with static spacer.
    The Journal of Arthroplasty 11/2007; 22(7):1060-6. · 2.11 Impact Factor