Ultrafast Laser Microwelding using Filamentation - Osaka University
Ultrafast Laser Microwelding using Filamentation - Osaka University
Ultrafast Laser Microwelding using Filamentation - Osaka University
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Joining Strength &<br />
Electron Micrograph of Interface<br />
Joining Strength [MPa]<br />
0.4 µJ Average: 21.5 MPa<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
10<br />
5<br />
0<br />
0.1 1 10<br />
Pulse Energy [µJ]<br />
<br />
Glass<br />
Copper<br />
1 µm<br />
No crack nor gap observed but<br />
some bumpy irregularity presents.<br />
<br />
20
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