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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Graver Chang Ck Yu Tina Shao Cherie Chen Kim Hsu Lee, J. |
| Copyright Year | 2008 |
| Description | Author affiliation: IST-Integrated Service Technol., Hsinchu (Graver Chang; Ck Yu; Tina Shao; Cherie Chen; Kim Hsu; Lee, J.) |
| Abstract | With the more reliability requirement increasing in the IC packaging for mobile product, the testing condition to simulate the service life of IC packaging on board will be emphasized, such as mechanical drop, temperature cycling, bending, vibration and so on. 4 point cyclic bending condition including different bending frequency and displacement to simulate actual service condition is defined in JEDEC22-B113. The best testing condition (1 Hz/2 mm) is recommended to accommodate better for service condition, but the correlation among each testing condition showing different strain rate will present different ductile and brittle behavior due to unique SnAnCu interconnect characteristics upon actual IC package. In the study, it will be investigated the effect of board level cyclic bending condition on the solder joint durability of 0.5 mm pitch lead free TFBGA packaging. The various testing condition described in the JEDEC spec is conducted to explore the ductile/brittle transition behavior of the TFBGA package. Furthermore, the surface finish on the PCB effect between OSP and Ag immersion and solder ball composition effect under optimized bending condition will be concluded with the metallurgical analysis of X-section, SEM and FIB. Finally, the IC packaging behavior on board by way of various cyclic bending conditions can be referred to simulate lower strain rate and higher strain rate deformation in temperature cycling and mechanical drop test for the TFBGA package design optimization. |
| Starting Page | 181 |
| Ending Page | 184 |
| File Size | 4561084 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424436231 |
| DOI | 10.1109/IMPACT.2008.4783839 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-10-22 |
| Publisher Place | Taiwan |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Temperature Environmentally friendly manufacturing techniques Board level Life testing Capacitive sensors TFBGA Vibrations Integrated circuit testing Lead Frequency Integrated circuit packaging SnAgCu Soldering Cyclic bending |
| Content Type | Text |
| Resource Type | Article |
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