Abstract
Air gap such as disbond and crack can be successfully detected by ultrasonic testing. But imperfect interface evaluation is still a challenge. The challenge arises from the uncertainty of formation mechanism, boundary condition and acoustical response. In the paper, samples of structure silicon/adhesive/lead-frame, typical in IC packaging, are fabricated with two adesives, degraded through thermo cycling, examined by acoustical waveform and C-imaging, and compared to the measured optical microscopy image and the measured failure shear strength.
| Original language | English |
|---|---|
| Title of host publication | Third International Conference on Experimental Mechanics and Third Conference of the Asian Committee on Experimental Mechanics; Singapore; Singapore; 29 November 2004 through 1 December 2004 |
| Pages | 528-533 |
| Number of pages | 6 |
| Volume | 5852 PART II |
| DOIs | |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | International Conference on Experimental Mechanics 2004 - Singapore, Singapore Duration: 29 Nov 2004 → 1 Dec 2004 Conference number: 3rd https://www.spiedigitallibrary.org/conference-proceedings-of-spie/5852.toc (Proceedings) |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Publisher | SPIE |
| ISSN (Print) | 0277-786X |
Conference
| Conference | International Conference on Experimental Mechanics 2004 |
|---|---|
| Abbreviated title | ICEM 2004 |
| Country/Territory | Singapore |
| City | Singapore |
| Period | 29/11/04 → 1/12/04 |
| Internet address |
Keywords
- C-scan imaging
- Failure shear strength
- IC packaging
- Quantification of weak bond
- Weak bond
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