Finite Element Analysis of Multi-Layer Ceramic Capacitors Improved Self-heating for High Reliability

Lee, Chang-Ho; Yoon, Jung-Rag

doi:10.1007/s42341-021-00317-0

Cited by 2 publications

(3 citation statements)

References 20 publications

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“…In a similar vein, the authors in reference [50] adopt a comparable approach. They aim to reduce operational failures by simulating the operation of a multilayer ceramic capacitor (MLCC) device using ANSYS Maxwell 3D software.…”

Section: Models For Reliability Analysis Of Redundant Series-parallel...mentioning

confidence: 99%

“…Isograph (England, USA), ITEM iQRAS (England, USA), RAM Commander (Israel), and Windchill Quality Solutions (Relex) (USA) are among the leading software products utilized in the realm of reliability analysis. These are integrated software tools that include various methods of analysis, implement various forms of model setting (graphs, failure trees, event trees, reliability flowcharts), contain extensive databases of initial data, have a developed graphical user interface, are exhaustively documented, have both local and network configurations, are interfaced by import-export with databases, text editors, spreadsheets, logistics software, SAPE [30,[49][50][51][52][53][54][55][56].…”

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confidence: 99%

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Review Models and Methods for Determining and Predicting the Reliability of Technical Systems and Transport

Martyushev,

Malozyomov,

Sorokova

et al. 2023

Mathematics

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Modern power and transportation systems are subject to high requirements for reliability and performance in performing their specified functions. At the same time, these requirements are constantly increasing with the increasing complexity of technology and the introduction of electronics and computer technology into its structure. This is fully applicable to energy and transportation infrastructure, including electric vehicles. The complexity of the systems and increasing requirements for them have led to the fact that the problem of increasing their operational reliability has acquired great importance. The article presents a review of methods and justification of ensuring a high level of reliability and serviceability of technical systems as one of the most important tasks in the creation and operation of complex systems, such as modern energy and transportation systems. It is shown that a significant reserve in solving the problem of increasing the reliability and performance of technical systems is the information on failures and malfunctions of these systems obtained from the field of operation. The methodology of collection and processing of statistical information on failures of vehicles described by different distribution laws is outlined.

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Section: Models For Reliability Analysis Of Redundant Series-parallel...mentioning

confidence: 99%

mentioning

confidence: 99%

Review Models and Methods for Determining and Predicting the Reliability of Technical Systems and Transport

Martyushev,

Malozyomov,

Sorokova

et al. 2023

Mathematics

View full text Add to dashboard Cite

show abstract

“…Each method has different strengths to detect defects (Krieger et al , 2006). Park used the finite element approach to study the impact of design parameters on MLCC thermo-mechanical stresses and mechanical reliability (Park et al , 2007), while Lee and Yoon assessed heating temperature for three different MLCC sizes and simulated to improve self-heating (Lee and Yoon, 2021). Li indented MLCC to test its reliability (Li et al , 2018).…”

Section: Introductionmentioning

confidence: 99%

Investigation of moisture-induced crack propagation in the soft-termination multi-layer ceramic capacitor during thermal reflow process

Bachok,

Abas,

Raja Gobal

et al. 2023

SSMT

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Purpose This study aims to investigate crack propagation in a moisture-preconditioned soft-termination multi-layer ceramic capacitor (MLCC) during thermal reflow process. Design/methodology/approach Experimental and extended finite element method (X-FEM) numerical analyses were used to analyse the soft-termination MLCC during thermal reflow. A cross-sectional field emission scanning electron microscope image of an actual MLCC’s crack was used to validate the accuracy of the simulation results generated in the study. Findings At 270°C, micro-voids between the copper-electrode and copper-epoxy layers absorbed 284.2 mm/mg3 of moisture, which generated 6.29 MPa of vapour pressure and caused a crack to propagate. Moisture that rapidly vaporises during reflow can cause stresses that exceed the adhesive/substrate interface’s adhesion strength of 6 MPa. Higher vapour pressure reduces crack development resistance. Thus, the maximum crack propagation between the copper-electrode and copper-epoxy layers at high reflow temperature was 0.077 mm. The numerical model was well-validated, as the maximum crack propagation discrepancy was 2.6%. Practical implications This research holds significant implications for the industry by providing valuable insights into the moisture-induced crack propagation mechanisms in soft-termination MLCCs during the reflow process. The findings can be used to optimise the design, manufacturing and assembly processes, ultimately leading to enhanced product quality, improved performance and increased reliability in various electronic applications. Moreover, while the study focused on a specific type of soft-termination MLCC in the reflow process, the methodologies and principles used in this research can be extended to other types of MLCC packages. The fundamental understanding gained from this study can be extrapolated to similar structures, enabling manufacturers to implement effective strategies for crack reduction across a wider range of MLCC applications. Originality/value The moisture-induced crack propagation in the soft-termination MLCC during thermal reflow process has not been reported to date. X-FEM numerical analysis on crack propagation have never been researched on the soft-termination MLCC.

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Finite Element Analysis of Multi-Layer Ceramic Capacitors Improved Self-heating for High Reliability

Cited by 2 publications

References 20 publications

Review Models and Methods for Determining and Predicting the Reliability of Technical Systems and Transport

Review Models and Methods for Determining and Predicting the Reliability of Technical Systems and Transport

Investigation of moisture-induced crack propagation in the soft-termination multi-layer ceramic capacitor during thermal reflow process

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