Pre-Qualification results
for module M-O-044
20220240100032
12.06.2003
Richard Bates, Sasha Tcheplakov, John Melone, Christian
Shaw
Tests:
Electrical Characterisation
Apparatus
- Valencia test box
- Standard mustard VME testdaq and AREO cards
- SCT LV3 with screen connection to Vdd return via 10nF capaciator for all
tests
- KEK choke
- Standard twisted pair cable with kitchen foil screen connected at each end
to screen connection of D25 plug
- Module Box and Cable Screen connection on AERO patch card connected to
Digital Return
All tests performed with the Pseudo-Optical readout chain of the AREO card.
Chiller set to 15oC for all tests. This corresponded to a
temperature of 35oC on the hybrid. Before kaptons were attached, the
DC electrical connection between the hybrid and module box was measured to have
a resistance of 0.4Ohms. The module was held on the cooling point with a nut
screwed finger tight into place by hand, no torque was recorded.
Note that for the electrical results correction has not been done at present
forthe variation in he calibrate capacitor.
During wire bonding of the module glue was spotted on the fan-in over the
bond pads. The decission to miss out these channels was taken and thus the
module suffers from a very high count of unbonded channels. If these channels
are removed the module has only 18 bad channels.
Results
Operational temperature of 35oC
Typical module conditions
during measurement of:
Vcc |
3.5 V |
Icc |
940 mA |
Vdd |
4.0 V |
Idd |
580 mA |
Vdet |
120.0 V |
Idet |
0.39 uA |
Thyb |
35 oC |
- IV curve (ps
/
pdf)
- Trimrange ( ps
/ pdf
)
- Threepont gain ResponseCurve ( ps
/ pdf
)
- ResponseCurve ( ps
/ pdf
)
- Noise Occupancy (
ps /
pdf)
- Noise Occupancy S-Curves(
ps /
pdf)
- TimeWalk ( ps
/ pdf
)
Results
file
- Module Performance summary:
- T=24oC: Idet at 150V = 0.758uA; Idet at
350V = 0.81uA
Corrected to T=20oC: Idet at 150V =
0.53uA; Idet at 350V = 0.57uA
- Average front-end input noise, from 3pt gain without fan-in problem
channels, Link0 = 1449e, Link1 = 1493e, Module =
1471e;
- Average gain, from 3pt gain without fan-in problem channels,Link0 = 54.1 mV/fC, Link1 = 54.3 mV/fC, Module = 54.2
mV/fC;
- Average front-end input noise, from 10pt ResponseCurve without fan-in
problem channels, Link0 = 1450e, Link1 = 1487e, Module =
1469e;
- Average gain, from 10pt ResponseCurve without fan-in problem channels,
Link0 = 53.5 mV/fC, Link1 = 53.8 mV/fC, Module = 53.7
mV/fC;
- Average threshold variation (for TrimRange 0), Link0
= 1.24 mV, Link1 = 1.30 mV
- Noise Occupancy,Link0 = 7.67x10-6, Link1
=1.09x10-5, Module = 9.27 x10-6
- Average front-end input noise from Noise Occupancy,Link0 =1413, Link1 =1438 ,Module =1425
- There are a total of 19 masked channels on the module when the problems
with the fan-in are removed.
- 3 unbonded channels on Link0
- 3 unbonded channels on Link1
Operational temperature of 14oC
Measured on 06/07/2003
Typical module conditions during measurement of:
Vcc |
3.5 V |
Icc |
1030 mA |
Vdd |
4.0 V |
Idd |
570 mA |
Vdet |
120.0 V |
Idet |
0.09 uA |
Thyb |
14 oC |
- IV curve (ps
/
pdf)
- Threepont gain ResponseCurve ( ps
/ pdf
)
- Trimrange ( ps / pdf
)
- ResponseCurve ( ps
/ pdf
)
- Noise Occupancy (
ps /
pdf)
- Noise Occupancy S-Curves(
ps /
pdf)
- TimeWalk ( ps
/ pdf
)
Results
file
- Module Performance summary:
- T=14oC: Idet at 150V = 0.082uA; Idet at
350V = 0.113uA
- Average front-end input noise, from 3pt gain without fan-in problem
channels, Link0 =1381 e, Link1 =1409 e, Module =
1395e;
- Average gain, from 3pt gain without fan-in problem channels,Link0 = 54.7 mV/fC, Link1 = 54.4 mV/fC, Module =54.6
mV/fC;
- Average threshold variation (for TrimRange -1), Link0 = 1.68 mV, Link1 = 1.36 mV, Module= 1.52 mV
- Average front-end input noise, from 10pt ResponseCurve without fan-in
problem channels, Link0 = 1393e, Link1 = 1421e, Module =
1407e;
- Average gain, from 10pt ResponseCurve without fan-in problem channels,
Link0 = 54.4 mV/fC, Link1 = 54.7 mV/fC, Module =
54.5mV/fC;
- Noise Occupancy,Link0 = 9.59x10-6, Link1
=1.95x10-5, Module = 1.45x10-5
- Average front-end input noise from Noise Occupancy,Link0 =1413e, Link1 =1444e ,Module =1428e
- Average Timewalk,Link0 =6ns, Link1 =6ns ,Module =6ns
- There are a total of 23 masked channels on the module when the problems
with the fan-in are removed.
- 3 unbonded channels on Link0
- 2 unbonded channels on Link1
Thermal Cycling
The module was surveyed before thermal cycling at
Manchester during assembly and at Liverpool after assembly. The results are
avaliable as a excel
spread sheet or pdf.
The module underwent 5 cycles from +35oC to 30oC inside
an environmental chamber, in accordance to the forward QA documentation. The
temperture and humidity of the environmental chamber and temperature of the
module box were plotted as a function of time. The module was taken to liverpool
for surveying and passed the QA tests.
Page maintained by Richard
Bates
Last modified: 25 June 2003