| |
厚度 |
组成比 |
有害元素 |
| |
Sn-Ag [µm] |
Ag [wt%] |
Pb[ppm] |
| 1 |
5.34 |
2.83 |
291 |
| 2 |
5.3 |
2.63 |
297 |
| 3 |
5.31 |
2.64 |
347 |
| 4 |
5.34 |
2.73 |
303 |
| 5 |
5.31 |
2.67 |
329 |
| 6 |
5.33 |
2.67 |
334 |
| 7 |
5.33 |
2.75 |
291 |
| 8 |
5.3 |
2.74 |
262 |
| 9 |
5.35 |
2.72 |
303 |
| 10 |
5.36 |
2.91 |
308 |
| 平均值 |
5.33 |
2.73 |
306.5 |
| 标准偏差 |
0.02 |
0.09 |
24.6 |
| CV |
0.4% |
3.2% |
8% |
|
| |
Au [µm] |
Ni[ µm] |
| 1 |
0.054 |
5.11 |
| 2 |
0.055 |
5.11 |
| 3 |
0.054 |
5.12 |
| 4 |
0.055 |
5.08 |
| 5 |
0.054 |
5.1 |
| 6 |
0.055 |
5.13 |
| 7 |
0.053 |
5.08 |
| 8 |
0.053 |
5.09 |
| 9 |
0.054 |
5.08 |
| 10 |
0.055 |
5.14 |
| 平均值 |
0.054 |
5.14 |
| 标准偏差 |
0.008 |
0.02 |
| CV |
1.5% |
0.4% |
|