delayer:lapping
Differences
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| Both sides previous revisionPrevious revisionNext revision | Previous revision | ||
| delayer:lapping [2019/06/26 12:05] – [Manual] mcmaster | delayer:lapping [2019/06/26 14:18] (current) – [mcmaster notes] mcmaster | ||
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| Line 492: | Line 492: | ||
| 900 g Al round block | 900 g Al round block | ||
| - | * P180 / 80 um: 144 mm3 / sec | + | * P180 / 80 um used SiC: 140 mm3 / sec @ speed 3 |
| * 460 - 423 = 37 um / min | * 460 - 423 = 37 um / min | ||
| * 5.3 x 11.0 mm = 58.3 mm2 | * 5.3 x 11.0 mm = 58.3 mm2 | ||
| * 37 * 4 * 58.3 = 8628.4 mm3 / min | * 37 * 4 * 58.3 = 8628.4 mm3 / min | ||
| - | * Used pad | + | * One die fractured after just one minute |
| + | * Probably too aggressive to use in practice | ||
| + | * 30 um new AO: 6.2 mm3 / sec @ speed 3 | ||
| + | * Same area as above | ||
| + | * 1.6 um / min | ||
| + | * 1.6 * 4 * 58.3 = 373 mm3 / min | ||
| + | Removing pads | ||
| + | * 300 F optimal | ||
| + | * By 350F glue is too soft to come off in one piece | ||
| ====== References ====== | ====== References ====== | ||
delayer/lapping.1561550700.txt.gz · Last modified: 2019/06/26 12:05 by mcmaster