Table 3. Statistics of defect sample quantity.
| Defect type | Number of images/piece | Number of defect samples/piece |
|---|---|---|
| Leaks | 115 | 442 |
| Mouse bites | 115 | 442 |
| Open circuits | 116 | 419 |
| Short circuits | 116 | 499 |
| Burrs | 114 | 424 |
| Residual copper | 114 | 434 |
| Total | 690 | 2660 |
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