- document
-
Zhu, Z. (author), Zhang, Y. (author), Min, Changjun (author), Adam, A.J.L. (author), Urbach, Paul (author), Yuan, Xiaocong (author)Optical tweezers have proved to be a powerful tool with a wide range of applications. The gradient force plays a vital role in the stable optical trapping of nano-objects. The scalar method is convenient and effective for analyzing the gradient force in traditional optical trapping. However, when the third-order nonlinear effect of the nano...journal article 2024
- document
-
Zhang, S. (author), Li, Yuhang (author), Bannenberg, L.J. (author), Liu, Ming (author), Ganapathy, S. (author), Wagemaker, M. (author)Formation cycling is a critical process aimed at improving the performance of lithium ion (Li-ion) batteries during subsequent use. Achieving highly reversible Li-metal anodes, which would boost battery energy density, is a formidable challenge. Here, formation cycling and its impact on the subsequent cycling are largely unexplored. Through...journal article 2024
- document
-
Martin, H.A. (author), Xu, Haojia (author), Smits, Edsger C.P. (author), van Driel, W.D. (author), Zhang, Kouchi (author)This study introduces a training protocol utilizing Convolutional Neural Networks (CNNs) and Confocal Scanning Acoustic Microscopy (CSAM) imaging techniques to classify Power Quad Flat No-leads (PQFN) package delamination. The investigation involves empty PQFN packages with varied substrate metallizations subjected to thermal cycling. Four...conference paper 2024
- document
-
Inamdar, A.S. (author), Hauck, Torsten (author), van Soestbergen, Michiel (author), van Driel, W.D. (author), Zhang, Kouchi (author)Model order reduction techniques are developed and utilized to make numerical simulations more efficient. The use of Reduce Order Models (ROM) also enables data exchange with external parties without disclosing the sensitive information present in a Full-Order Model (FOM). It is crucial to optimize for both the efficiency and accuracy of a ROM...conference paper 2024
- document
-
Liu, Xu (author), Hu, D. (author), Li, Z. (author), Fan, Xuejun (author), Zhang, Kouchi (author), Fan, J. (author)The nano-copper particles are widely used in the sintering processes of packaging wide bandgap semiconductors. Despite the significant success in the industry, the mechanism bridging the sintering process to the mechanical properties of sintered nano-copper is not yet well-modeled. In this paper, the impacts of different sintering temperatures...conference paper 2024
- document
-
Tang, Hongyu (author), Shi, Weiqi (author), Zhang, Rongjun (author), Fan, J. (author), Zhang, Kouchi (author)Tungsten disulfide (WS2) has recently attracted considerable attention owing to its excellent physical, chemical, electronic, and optical properties, leading to increased research into its applications in electronic and optoelectronic devices. However, the oxidation of 2D material affects significantly its optical and electronic properties...conference paper 2024
- document
-
Du, L. (author), Deng, Shanliang (author), Cui, Z. (author), Poelma, René H. (author), Beelen-Hendrikx, Caroline (author), Zhang, Kouchi (author)In this study, we combined finite element method (FEM) based on Ansys and Noesis Optimus software to investigate the effect of bump structures and loading conditions on the electromigration properties of solder bumps in WLCSP. A numerical model considering current density, vacancy concentration, stress and temperature was utilized to calculate...conference paper 2024
- document
-
Zhang, S. (author), Liang, Yaxin (author), Yang, Cai (author), Venema, Paul (author), Rietveld, L.C. (author), Heijman, Sebastiaan (author)A large decrease in permeability is often observed during the filtration of nano-sized colloids, while fouling is widely regarded as the main explanation for this phenomenon. The osmotic pressure or concentration polarization (CP) of colloids can also contribute to the flux decline. However, the contribution of CP to flux loss cannot be...journal article 2024
- document
-
Rutten, J. (author), Tissier, M.F.S. (author), van Wiechen, P.P.J. (author), Zhang, Xinyi (author), de Vries, S. (author), Reniers, A.J.H.M. (author), Mol, Jan-Willem (author)High-resolution wave measurements at intermediate water depth are required to improve coastal impact modeling. Specifically, such data sets are desired to calibrate and validate models, and broaden the insight on the boundary conditions that force models. Here, we present a wave data set collected in the North Sea at three stations in...journal article 2024
- document
-
Yue, X. (author), Mo, J. (author), Chen, Zhiyuan (author), Vollebregt, S. (author), Zhang, Kouchi (author), Du, S. (author)Synchronized rectifiers offer promising solutions for piezoelectric energy harvesting; however, achieving the promised energy extraction performance necessitates using either a bulky inductor or multiple large capacitors, which cannot be on-chip integrated and increase the system form factor. This article introduces a fully integrated...journal article 2024
- document
-
Inamdar, A.S. (author), van Soestbergen, M. (author), Mavinkurve, A. (author), van Driel, W.D. (author), Zhang, Kouchi (author)Semiconductor devices are commonly encapsulated with Epoxy-based Moulding Compounds (EMC) to form an electronic package. EMC typically occupies a large volume within a package, and thus, governs its thermomechanical behaviour. When exposed to high temperatures (150°C and above), electronic packages predominantly show oxidation of the outer layer...journal article 2024
- document
-
Zhang, Z.H. (author), Andrade, Bruno (author), Wang, Xiaoqiong (author), Aburabee, Ibrahim (author), Yuan, Sinan (author)Traditional Chinese villages act as the essential carriers of China’s rural heritage. Such villages are considered to retain living practices of intangible heritage through know-how, artistic and folk customs, as well as a well-preserved architectural appearance. However, their conservation is at stake due to degradation, abandonment, and...journal article 2024
- document
-
Lei, Shunbo (author), Zhang, Yichen (author), Shahidehpour, Mohammad (author), Hou, Yunhe (author), Panteli, Mathaios (author), Chen, Xia (author), Aydin, N.Y. (author), Liang, Liang (author), Wang, Cheng (author), Wang, Chong (author), She, Buxin (author)The switch to renewable power generation is promoted aggressively by government policies, growing investments, consumer preferences, and many other factors. However, high renewable penetration can impose significant challenges to designing and employing measures that enhance power grid resilience. Resilience has been posed as a requirement of...contribution to periodical 2024
- document
-
Zhang, F. (author), van Dijk, N.H. (author), Brück, E.H. (author), Ren, Yang (author)The emerging all-d-metal Ni(Co)MnTi-based Heusler compounds attract extensive attention because it can potentially be employed for solid-state refrigeration. However, in comparison to the abundant physical functionalities in bulk conditions, the hidden properties related to the NiCoMnTi-based Heusler nanoparticles (NPs) have not yet been...journal article 2024
- document
-
Shan, Meixia (author), Zhang, Jingjing (author), Cong, Shenzhen (author), Zhang, Yatao (author), He, Xuezhong (author), Kapteijn, F. (author), Liu, X. (author)Separation of hydrogen from carbon dioxide for sustainable H<sub>2</sub> production and CO<sub>2</sub> capture still faces great challenges due to the smaller size of H<sub>2</sub> and higher condensability of CO<sub>2</sub>. Herein, a high-performance benzimidazole-linked polymer (BILP) membrane for hydrogen separation was directly prepared...journal article 2024
- document
-
Li, Shizhen (author), Liu, X. (author), Gao, Chenshan (author), Wang, S. (author), Li, Jun (author), Ye, Huaiyu (author), Zhang, Kouchi (author), Wu, Shaohui (author)The significance of wafer bonding is fundamental to the progression of electronic systems. Common fabrication techniques for Cu pillars play a crucial role in establishing resilient and efficient interconnects within semiconductor devices. It is imperative to explore the potential of nano-copper as an alternative material to overcome limitations...conference paper 2024
- document
-
Hu, D. (author), Wang, Chieh (author), Li, Z. (author), Gupta, N. (author), Poelma, René H. (author), Shi, Ziliang (author), Fan, J. (author), Zhang, Kouchi (author)Driven by the increasing demand for high-power systems, ceramic substrates have received more attention for handling higher power density. Warpage in active metal brazed (AMB) ceramic substrate becomes a critical issue as it can deteriorate the reliability performance. This study comprises three phases, including investigation of the cause of...conference paper 2024
- document
-
Li, J. (author), Vollebregt, S. (author), Zhang, Y. (author), Shekhar, A. (author), May, Alexander (author), van Driel, W.D. (author), Zhang, Kouchi (author)Due to the deficient passivation of the interface between silicon carbide and silicon dioxide, the defect-induced capture and release of trapped charges triggered by external Bias Temperature Stress (BTS) leads to parameter shifts and degraded device performance. This study models the trap-induced transient current in silicon carbide metal-oxide...conference paper 2024
- document
-
Li, Wenyu (author), Chen, Wei (author), Jiang, Jing (author), Wang, Wenbo (author), Fan, Xuejun (author), Zhang, Kouchi (author), Fan, Jiajie (author)Thermal management has always played a significant role in power module design. Double-sided heat dissipation is more efficient at transferring heat than the traditional package. Although there are several thermal modeling approaches to power modules, the application of the numerical models, which are computationally fast and accurate, has...conference paper 2024
- document
-
Hu, X. (author), Huang, Jianlin (author), Poelma, René H. (author), van Driel, W.D. (author), Zhang, Kouchi (author)Low-temperature sintering technology of Ag nanoparticles is widely used in high-power electronic device packaging. Utilizing simulation methods to comprehend and control the microstructure and properties of Ag sintering materials has emerged as a prominent research area. This work uses the General Form PDE module in COMSOL to simplify the...conference paper 2024