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  4. Advanced characterization of mechanical properties of multilayer ceramic capacitors
 
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Advanced characterization of mechanical properties of multilayer ceramic capacitors

Journal
Journal of Materials Science: Materials in Electronics
Journal Volume
25
Journal Issue
2
Pages
627-634
Date Issued
2014
Author(s)
Chen K.-Y.
Huang C.-W.
Wu M.
WEN-CHENG J. WEI  
CHUN-HWAY HSUEH  
DOI
10.1007/s10854-013-1478-6
URI
https://scholars.lib.ntu.edu.tw/handle/123456789/425037
URL
https://www2.scopus.com/inward/record.uri?eid=2-s2.0-84894091076&doi=10.1007%2fs10854-013-1478-6&partnerID=40&md5=83f181aec4314c1e38cd1f91694bf691
Abstract
Characterization of the mechanical properties of small components is a significant issue. For the multilayer ceramic capacitor (MLCC), direct loading by conventional facilities is not suitable because of its small size. To date, the standard method used to determine MLCC's mechanical properties is board flex test; i.e., mounting the capacitor onto a printed circuit board (PCB) and applying bending to the entire system. Failure is defined as cracking or capacitance loss of the MLCC when the mounted PCB is subjected to a specified deflection, and the measurements are usually performed after the test. In this case, characterization of the mechanical properties of MLCCs is qualitative. The purpose of the present study was to quantitatively characterize the mechanical properties of MLCCs. Specifically, the acoustic emission was used to detect cracking of MLCCs during the board flex test. To confirm cracking-induced acoustic emission, telemicroscope was used to perform the in situ observation of cracking. Finite element analyses were also performed to analyze the stress field resulting from the test to compare with the observed cracking path. In addition, nanoindentation was used to explore the mechanical properties of the constituents of MLCCs in the nanoscale. Our work not only allows identification and understanding of the fracture origin, but also provides guidelines in the material design. ? 2013 Springer Science+Business Media New York.
Type
journal article

臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促進交流合作、保存學術產出、推廣研究成果。

To permanently archive and promote researcher profiles and scholarly works, Library integrates the services of “NTU Repository” with “Academic Hub” to form NTU Scholars.

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開放取用是從使用者角度提升資訊取用性的社會運動,應用在學術研究上是透過將研究著作公開供使用者自由取閱,以促進學術傳播及因應期刊訂購費用逐年攀升。同時可加速研究發展、提升研究影響力,NTU Scholars即為本校的開放取用典藏(OA Archive)平台。(點選深入了解OA)

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