 Tue Apr 14 17:29:46 2020, Andrey Starodumov, General, ROC4 or ROC12 defects
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Starting from M1650 almost every module has a cluster of dead pixels or broken bump bonds on
ROC4 or (more often) ROC12. The number of defects varied from 20 to 40.
It's almost excluded that such damage is made at PSI, since both of us: Silvan and me, first time connected the cable
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Wed Apr 15 17:26:46 2020, Andrey Starodumov, Full test, FT of M1623, M1657, M1673, M1674
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M1623: Grade B due to rel gain width, in ROC4 74 pixels failed trimming (Threshold) and mean noise >200e
M1657: Grade B due to 70 dead pixels in ROC12 and mean noise >200e
M1673: Grade B due to mean noise >200e in a few ROCs
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Thu Apr 16 15:21:51 2020, Andrey Starodumov, Change TBM , Change TBMs on M1635, M1653, M1671
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M1635: no data from ROC8-ROC11 => change TBM1
M1653: ROC12-ROC15 not programmable => change TBM0
M1671: no data from ROC12-ROC15 => change TBM0
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Thu Apr 16 17:31:16 2020, Andrey Starodumov, Full test, FT of M1662, M1675, M1676
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M1662: Grade C due to failure of ROC4 in almost all tests: PixelAlive, PH calibration etc
Should be investigated and retested. At Reception PixelAlive etc was OK, only one double column showed problems
M1675: Grade B due to mean noise > 200e for several ROCs
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Fri Apr 17 18:05:45 2020, Andrey Starodumov, Full test, FT of M1542, M1557, M1630, M1649 only at +10C
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M1542 has grade C for relative gain width. Was tested with early versions of test SW with trim VCal=40 and not yet optimized PH optimization/calibration.
Other modules have grade C only at +10C. This time CtrlReg=17 instead of 9 is used/
M1542: Grade B due to 61 pixels failed Threshold criteria (trimming)
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 Mon Apr 20 15:20:07 2020, Andrey Starodumov, Reception test, Change TBMs on M1635, M1653, M1671
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[quote="Andrey Starodumov"]M1635: no data from ROC8-ROC11 => change TBM1
M1653: ROC12-ROC15 not programmable => change TBM0
M1671: no data from ROC12-ROC15 => change TBM0
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Mon Apr 20 17:09:12 2020, Andrey Starodumov, HDI test, 4 HDIs tested
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After staying in 90%+ RH 2 HDIs became flat. The first one was easy to mount on an HDI holder.
But after 1-2hrs the second HDI became bent again, but still remained flexible, so was also easy to mount.
I put 2 more HDIs in the same conditions and after 2 hrs was able to mount and test them.
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Tue Apr 21 15:34:57 2020, Andrey Starodumov, General, Retesting starts today
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From today we will retest modules that have been tested with pXar SW versions earlier than March 18.
There were a few changes before this date:
1) trimming VCal: 40->50
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Tue Apr 21 17:39:48 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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M1542: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC11,14,15. There was no such problem at previous test when CtrlReg=9
was used, while for the present test CtrlReg=17 was used
M1554: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC9,13. There was no such problem at previous test when CtrlReg=9 was |
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Wed Apr 22 17:28:42 2020, Andrey Starodumov, HDI test, 11 HDIs tested
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After keeping HDIs in a very high RH for a dew hours (24 is fine) became flat and could be fixed on HDI holder by vacuum.
11 HDIs were tested, all good:
3036, 3043, 3034, 3044, 1034, 6006, 6007, 6005,
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Wed Apr 22 17:41:11 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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[quote="Andrey Starodumov"]
M1542: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC11,14,15. There was no such problem at previous test when CtrlReg=9
was used, while for the present test CtrlReg=17 was used
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Thu Apr 23 13:34:52 2020, Andrey Starodumov, Full test, FT of M1542, M1554, M1555, M1653
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[quote="Andrey Starodumov"][quote="Andrey Starodumov"]
M1542: Grade C due to massive (>1000pixels in total) trimming failures at -20C in ROC11,14,15. There was no such problem at previous test when CtrlReg=9
was used, while for the present test CtrlReg=17 was used
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Thu Apr 23 13:37:29 2020, Andrey Starodumov, Full test, FT of M1556, M1557, M1559, M1560
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M1556: Grade B due to several ROCs mean noise >200e
M1557: Grade B due to several ROCs mean noise >200e and trimming failed for 60 pixel in ROC4 at -20C
M1559: Grade A
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Thu Apr 23 17:26:51 2020, Andrey Starodumov, Full test, FT of M1561, M1564, M1565, M1566
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M1561: Grade B due to several ROCs mean noise >200e
M1564: Grade B due to two ROCs mean noise >200e
M1565: Grade B due to two ROCs mean noise >200e
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Thu Apr 23 18:01:16 2020, Andrey Starodumov, HDI test, 4 HDIs tested
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The following HDIs are tested:
6007: OK
1034: Failed due to not working Channel 1 in CLK0, CTR0, SDA0 and SDA1
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Fri Apr 24 13:56:11 2020, Andrey Starodumov, HDI test, 3 HDIs tested
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Following HDIs tested from the box "to be understood":
5021, 3019, 5008. All are fine. |
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Fri Apr 24 13:59:43 2020, Andrey Starodumov, Full test, FT of M1568, M1569, M1570, M1571
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M1568: Grade B due to mean noise >200e for a few ROCs and for ROC0 RelGainWidth(=0.1) is twice larger then for other ROCs
M1569: Grade B due to mean noise >200e for a few ROCs
M1570: Grade B due to mean noise >200e for a few ROCs
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Mon Apr 27 13:23:47 2020, Andrey Starodumov, Full test, FT of M1573, M1574, M1576, M1577
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Test has been done on April 24
M1573: Grade B due to mean noise >200e for a few ROCs
M1574: Grade B due to mean noise >200e for a few ROCs and trimming failed for >100 pixels and RelGainWidth too wide for ROC0
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Mon Apr 27 13:50:09 2020, Andrey Starodumov, Full test, FT of M1578, M1579, M1580, M1581
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M1578: Grade B due to mean noise >200e for a few ROCs and 67 pixels failed trimming in ROC1 at -20C
M1579: Grade A
M1580: Grade B due to mean noise >200e for a few ROCs and 59/112 pixels failed trimming in ROC5/ROC8 at +10C
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Mon Apr 27 14:21:17 2020, Andrey Starodumov, HDI test, 3 HDIs tested
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# remaining HDIs from "to be understood" box were tested after flattening them during weekend in RH=99.9% box.
6024, 4034 are OK
1039 bad: no data from A1 and A2 DTB outputs, flat output |