Delaminations of embedded passive components are often associated with reliability problems. Understanding the delamination can help us quickly identify the failure caused at an early stage of failure analysis. In this work, defects in buried capacitors have been detected by use of scanning acoustic microscopy (SAM). Defects in buried capacitors caused by thermal shock have also been clearly observed. The results show that SAM can be a powerful analytical tool for the nondestructive evaluation of delaminations in buried passive components. Through transmission scan (THRU-scan) is a fast method to detect the existence of internal defects, while Tomographic Acoustic Multiple Imaging scan (TAMI-scan) is shown to be capable of detecting the location and size of delaminations and voids. [S1043-7398(00)01102-6]
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June 2000
Technical Papers
Nondestructive Evaluation of Ceramic Substrate With Embedded Passive Components by SAM
Z. Q. Yu,
Z. Q. Yu
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
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Y. C. Chan,
Y. C. Chan
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
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D. P. Webb,
D. P. Webb
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
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G. Y. Li
G. Y. Li
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
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Z. Q. Yu
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
Y. C. Chan
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
D. P. Webb
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
G. Y. Li
Department of Electronic Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong
Contributed by the Electrical and Electronic Packaging Division for publication in the JOURNAL OF ELECTRONIC PACKAGING. Manuscript received by the EEPD May 21, 1999. Associate Technical Editor: B. Michel.
J. Electron. Packag. Jun 2000, 122(2): 172-177 (6 pages)
Published Online: May 21, 1999
Article history
Received:
May 21, 1999
Citation
Yu , Z. Q., Chan , Y. C., Webb , D. P., and Li, G. Y. (May 21, 1999). "Nondestructive Evaluation of Ceramic Substrate With Embedded Passive Components by SAM ." ASME. J. Electron. Packag. June 2000; 122(2): 172–177. https://doi.org/10.1115/1.483151
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