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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Cheung, Y.M. Yiu, C.H. |
| Copyright Year | 2003 |
| Description | Author affiliation: ASM Assembly Autom. Ltd, Kowloon, China (Cheung, Y.M.; Yiu, C.H.) |
| Abstract | The dynamic properties of laser welding post-welding shift (PWS) for a TO-can pigtail package are studied. We use non-contact capacitive displacement sensors to measure the transient movement of the welding parts right after firing the laser pulse(s) for the welding configurations using (i) a single and (ii) three-symmetric laser beams. We measure the transient behaviour of the PWS of the welded posts at various time scales. From our result, multiple time scale dynamic behaviours of the PWS are observed and this gives us some insight on the possible physical processes contributing to the PWS. |
| Sponsorship | Chinese Inst. of Electron |
| Starting Page | 221 |
| Ending Page | 224 |
| File Size | 233990 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780381688 |
| DOI | 10.1109/EPTC.2003.1298728 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2003-10-28 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Packaging Welding Pulse measurements Capacitive sensors Sensor phenomena and characterization Displacement measurement Motion measurement Optical pulses Laser theory Laser beams |
| Content Type | Text |
| Resource Type | Article |
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