Closed drberry85 closed 8 years ago
These grades look correct to me. ROC 13 on M-B-4-44 has 48 (44+4) defects, which is over the 1% threshold, so B is correct grade.
The DB/MoReWeb discrepancy comes from the bump bonding analysis done in MoReWeb [1]. In the latest commits from @gfunk723 this issue has been addressed. Once we do an update on Purdue's side (in the coming days) everything should be consistent.
Hey, I just had a thought - MoReWeb is like the cross-check analysis that never gets officially used but helps the mainline analysis validation its analysis code!
With the new update of MoReWeb a few days back, has this discrepancy been resolved?
yes indeed! 44 = 44:
LessWeb: http://www.physics.purdue.edu/cmsfpix/Submission_p/summary/summaryFull.php?name=M-B-4-44
Excellent!
Hey Greg and John,
It looks like LessWeb is grading grade A modules as grade B because it's looking at the total number of bad bump bonds instead of the bad bumps per ROC. Examples are M-B-4-44 and M-G-2-48. These are grade A modules, but it looks like LessWeb is saying they are grade B because they have 44 bad bumps and 83 bad bumps, respectively. While this does place a single ROC pass the 0.1% threshold, these bumps are distributed across multiple ROCs. You can check in MoReWeb and see that M-B-4-44 and M-G-2-48 should be grade a modules.
Doug