Strasbourg status
Ring 7 pilot run
François Didierjean
18 modules received from Lyon
30200020000275
30200020000276
30200020000277
30200020000278
30200020000279
30200020000280
Si 2
Si 1
30200020000281
30200020000282
30200020000283
30200020000284
30200020000285
30200020000286
30200020000287
30200020000288
30200020000289
30200020000290
30200020000291
30200020000292
views of bonding
Si – Si
PA - Si
Gluing of the ceramic stiffeners
on the back side for 12 modules
New bonding jig
vacuum holes on the ceramic stiffeners
Procedure :
1. The bias ring bonding and IV curves
all OK except 2 bad modules :
current up to 10 µamp at 200 V for ##281 module
current up to 10 µamp at 100 V for ##291 module
bad
OK
2. Bonding Si – Si every 50 strips (11 wires)
and PA – Si every 50 strips (11 wires)
pull test :
PA-Si
Si-Si
30200020000275
6.0 +/- 1.5
6.3 +/- 0.3
30200020000276
6.2 +/- 0.9
6.0 +/- 0.5
30200020000277
5.6 +/- 0.9
6.0 +/- 0.5
30200020000278
5.5 +/- 0.8
6.3 +/- 0.2
30200020000279
6.6 +/- 1.2
5.9 +/- 0.5
30200020000280
5.4 +/- 0.9
6.0 +/- 0.3
results without
30200020000282
6.8 +/- 1.2
6.9 +/- 0.4
angle correction
30200020000283
6.0 +/- 0.8
6.4 +/- 0.2
30200020000284
5.3 +/- 0.6
5.9 +/- 0.3
30200020000285
6.0 +/- 1.5
5.4 +/- 0.9
30200020000286
5.6 +/- 0.7
5.7 +/- 0.3
30200020000287
5.9 +/- 0.5
6.1 +/- 0.3
30200020000288
5.6 +/- 0.8
5.8 +/- 0.3
30200020000289
6.0 +/- 0.7
6.0 +/- 0.7
30200020000290
8.0 +/- 1.0
6.3 +/- 0.4
30200020000292
5.7 +/- 1.3
6.5 +/- 0.4
Angle correction :
standardizing to 30°
measurement angle : 18°
hook
wire
pull strength
 correcting factor : 75%
direct measurement (g)
angle correction (g)
6.3
6.0
6.0
6.3
5.9
6.0
6.9
6.4
5.9
5.4
5.7
6.1
5.8
6.0
6.3
6.5
11.0
10.5
10.5
11.0
10.3
10.5
12.1
11.2
10.3
9.5
10.0
10.7
10.2
10.5
11.0
11.4
3. The full module bonding
2 x 512 wires on one go.
Repairing :
 on 5 modules : one wire Si – Si
 on 9 modules : up to 5 wires PA – Si
4. Optical inspection : OK
5. ARC and LED tests
IV curves are identical before and after bonding.
LED results
30200020000275
30200020000276
30200020000277
30200020000278
30200020000279
30200020000280
30200020000281
30200020000282
30200020000283
30200020000284
30200020000285
30200020000286
30200020000287
30200020000288
30200020000289
30200020000290
30200020000291
30200020000292
DB data from sensor group
LED Si 1
LED Si 2
391 - 392 - 397 - 398
396 503 468 bad IV curve
387 - 445
442 - 443
241 - 242
332 - 459
452 - 430 - 445
bad IV curve
204 - 205 - 288
from 495 to 512
391 - 392 - 397 - 398 391 - 392 - 397 - 398
396 236 - 503
503 468 387 - 445
442 - 443
241 - 242
332 - 459
59 452 - 430 - 445
204 - 205 - 288
from 495 to 512
IDIEL Si 1
CAC Si 1
IDIEL Si 2
CAC Si 2
396 - 439
396 - 439
130 -
391 - 392 - 397 - 398
20 - 21
18 503 351 - 354
468 -
387-
328 - 430 - 445
264 63 332 459 188 - 189 - 485 - 486
55 - 56 - 57 - 58
430 - 445
52 -
288 - 508
90 - 288
332 -
328 387 - 445 - 446
149 - 150 - 151
241 - 242
450 - 459
4 - 301 - 320 - 321
51 229 -