Transcript CMS PMG OCT 22 2004

US CMS Silicon Tracker Project
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
1
210 m2 of Silicon Strips
Outer Barrel (TOB)
End Caps (TEC 1&2)
2,4 m
Inner Barrel & Disks
(TIB & TID)
volume 24.4 m3
running temperature – 10 0C
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
2
320 mm thick
low resistivity
500 mm high
resistivity
Silicon Strips
Blue = double sided
Red = single sided
Strip lengths 10 cm (innermost) to 20 cm (outermost)
Strip pitches 80mm (innermost) to 200mm (outermost)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
3
Module Components
Pins
Front-End Hybrid:
Flex-ceramic laminate
w/integral Kapton cable
Kapton
cable
Pitch Adapter
Kapton-bias circuit
Carbon Fiber
Frame
Silicon Sensors
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
4
Technology
 Single sided p/n
• Industry standard
• Mass producible at low cost
 Surface radiation damage
• Increases strip capacitance (noise)
• p/n ok after inversion if adequately over-depleted
 High Breakdown Voltages
• Specific design and processing rules for guard & strip geometries
• Al strip layer acts as a field plate to remove high field region from Si
bulk to Oxide
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
5
Sensors:
factories
Frames:
Brussels
Pitch adapter:
Brussels
Hybrids:
Strasbourg
Hybrid:
CF carrier
US in the tracker
CERN
RU
Sensor QAC
Module
assembly
Perugia
FNAL UCSB
Bonding & FNAL UCSB
testing
Integration
into
mechanics
Perugia
Pisa
Padova
Pisa
ROD INTEGRATION
Sub-assemblies
Wien
Bari
Torino Bari
Wien
TIB-TID INTEGRATION
TOB assembly
TIB-IDassembly
Pisa
TK
Louvain
Brussels
UCSB
PETALS INTEGRATION Aachen
Brussels
Pisa
At CERN
Lyon
Louvain
Strasbourg
Firenze Wien Zurich StrasbourgKarlsruhe Aachen UCSB
UCSB
FNAL
Karlsruhe
TECassembly
Aachen
ASSEMBLY
At CERN
Lyon
Strasbourg
Karlsruhe
TECassembly
Karlsruhe. --> Lyon
Covered in this talk
 Status of Production parts
• For Modules – Sensors, Hybrids and Module Frames
• For Rods – Rod Frames
 US Readiness
• US Group Evolution past year and upcoming year
• Status of all production equipment and manpower
 Cost Performance and Schedule
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
7
Components Overview
 Stockpiling Parts Now ↔ but with some caveats
• Sensors (500 mm thick)
• SGS Thomson (ST) ↔ Many problems. Production stopped
• Hamamatsu (HPK) ↔ Excellent quality. Deliveries behind expected
• Sensor Frames from Belgium/Pakistan: on track
• Problems over the past few years appear to all be worked out for now
• Hybrids from Cicorel/Hybrid SA/CERN ↔ critical path
• Several design flaws and processing quality issues uncovered.
• Last one now being resolved
• Rod Frames from Helsinki/CERN ↔ recent mistake found on some
• Various residual problems have mostly been found and addressed.
• One found this week but not expected to cause any delays
• More may arise with experience..
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
8
Timeline of ST Sensor Issue
• August ‘03
• US uncovered a problem with ST sensors
• December ‘03 (3 day sensor workshop at CERN)
• Re-probing ~1000 sensors in US and EU indicates quality has degraded from
original
• US group conclusion: degradation in time – possible chemical deterioration.
• January ’04:
• Place orders with HPK for masks and prototypes
• February ’04:
• ST agrees to significant changes in QC and stable processing with the aim of
being re-qualified at July ‘04 tracker week. Also agrees to cut order from 18,000
to 11,000. CMS places order with HPK for 7000 sensors
• May-July ’04:
• ST delivers 1000 qualification sensors. US builds 177 modules. Sees time
evolution in at least 2 modules. Sensor groups see time evolution in 5% of
sensors probed.
• Tracker week - July ’04:
• probing groups together with ST uncover definitive evidence of corrosion
resulting from large phosphorous content in surface oxide.
• ST is not qualified by CMS.
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
9
1. Common Mode Noise (CMN)
Situation as of early‘04
CMN effect features:
• Group of noisy strips with a “turn-on”
voltage at which all 128 channels
show high noise
• can appear after thermal cycles
• often accompanied by other types of
degradation such as pinhole
development, more CMN
• Often correlated with high current
Later: a second chip develops a high noise
channel which causes common mode noise
Channel previously only had a slightly
higher noise (0.3 ADC)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
10
2. Vacuum effect ↔ single strips !
with vacuum
As of early‘04
-5
3,0x10
Leakage Current [A]
without vacuum
-5
2,5x10
30210934875819
30210934875819novac
-5
2,0x10
-5
1,5x10
-5
1,0x10
-6
5,0x10
0,0
100
200
300
400
500
Voltage [V]
Strip 420 & 421 (4µA 15µA).
Switching probe chuck vacuum on and off switches these strips on and off.
Effect is reproducible.
No visible defect seen.
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
11
600
3. Peculiar IV Curves
OB2 sensors
late ’03 early ’04
“It’s like no diode I’ve ever seen Gromit” - Wallace
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
12
4. Long term instability
30211334388607
As of early‘04
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
13
5. Structure in leakage current
Good sensor
As of early‘04
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
14
6."Dots and Stains" development
initial
3 hrs, no hum.
nothing more
As of July ’04 tracker week
30 min, 40% RH Þ stains
on guard first usually
1h30, 40% RH Þ
new stains on bias
(not always visible on video, see later)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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"Dots and Stains" origin
Investigation by Strasbourg and Karlsruhe
(with help of the Fraunhofer Institute Chemische Technologie)
The ratio of elements in white areas of stains
indicates the existence of Aluminum-oxide
Corrosion !
As of July
US CMS’04
Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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Confirmation by ST
Aluminum corrosion
Passivation (1 µm)
Aluminum (2 µm)
Triple oxide layer (1.5 µm)
Both dots and stains
are micro-corrosions
of the aluminum
surface. The
mechanism that drives
this phenomenon can
be the following:
Humidity reacts with
Phosphorus (present
in a 4% concentration
into the passivation
oxide) and forms an
acid (probably
H3PO4), that corrodes
a superficial layer of
Aluminum.
As of July
US CMS’04
Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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7a. Long term sensor tests

233 sensors tested 72h (room temeperature, r.h.=25-30%)
Failure rate of qualification sensors in 72 h period is 5%
As of July
US CMS’04
Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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7b. Long term TOB module tests
nA
Maxed out ADC
Bits at this point
After 7 hours, bias
current started to
increase
New high
noise
channels seen
in subsequent
tests
sec
Dark marks on bias ring occur near high noise channels
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
19
7c. Long term TEC module tests
22 modules tested
1 module with current increase during LT test
As of July
US CMS’04
Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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The Current Situation
 Need 18,200 thick sensors installed in CMS tracker
• 20,000 total (10% spares) originally all ST
• Shifted orders to HPK:
•
•
•
•
Winter ’04: 7,000
Summer ’04: 4,500
Autumn ’04: 5,200
TOTAL of 16,700: (1,500 short of installation requirement)
• Agree to accept ~3,000 sensors from ST
• Installation of at least 1,500
 HPK Shipments
• Started on schedule in June ’04
• Did not yet reach levels expected
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
21
Original Schedule
Jan-04
Feb-04
Mar-04
Apr-04
May-04
Jun-04
Jul-04
Aug-04
Sep-04
Oct-04
540
1000
1500
1500
1500
1500
540
1540
3040
4540
6040
7540
500
1000
1500
1500
1500
Mask Production
Sensor Pre-Production
Sensor Qualification
Sensor Production
Cumulative Production
Sensor Acceptance
240
 Initial plan showed 1st 7000 sensors delivered by November
 Current: ~4000 delivered.
 Met with Yamamoto (v.pres.HPK) Oct. 11 at CERN (JI on video:
•
3 problems identified: (One month lost while analyzing problems)
1. Poly Silicon – operator error caused over-etching
2. Backside SiO2 too thin – caused high leakage currents
3. Scratches – due to a problem with automated handling devices
•
•
Recent batches have ~75% yield allowing ~1300/mo. rate
If achieve 85-90% then will deliver ~1500/mo.
 Agreed: if order placed by Jan. HPK can deliver all 16,700 by Oct. 2005
•
Also discussed option to extend quantity by  3,000
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
22
Timeline of Hybrid Issues
 Summer 2003 US finds broken cable traces
• US reviews handling and studies alternative handling schemes
• CERN finds breaks are widespread
• Vendor says design is fatally flawed
• New design implemented after only 2 months delay
 Winter 2004 US finds strange failure mode in modules
• US traces the problem to the hybrid
• CERN responds instantaneously – halts all hybrid production
• Find vias are not properly plated, with breaks occurring at unknown rate
• US Halts production of TOB and TEC modules except for ST qualification
• Many TEC & TIB modules already done in EU (small radius HPK thin sensor modules)
• EU continues building
 Summer 2004: Vendor bought out.
• Management serious about solving this problem, with better resources.
• 4 variations of design processed
 Autumn 2004: QC Engineer at vendor - all trials are highly successful!
• Week October 15 2004 CMS qualifies substrate
• Week October 22 – CMS to qualify fully loaded hybrids
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
23
1.Hybrid Cable Problem
Flex cable fragility
• Problem was quickly solved
• Good US/CERN relationship
• CERN relationship with vendor
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
24
2.Good Vias and Bad Vias
Example of a bad via
Example of a good via
Cu
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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US Hybrids Delivery Schedule
 Oct. ’04: 200 TB hybrids
• old processing, known via prob. – hesitant to use with HPK sensors
 Nov.’04: 270 TOB hybrids
• not the most recent design but all passed the testing, and fraction
was test with all passing extreme thermal testing
 Jan.’05: 200 TOB + 100 TEC hybrids
 Ramping up to Apr. ’05
• Monthly rates ~700 TOB, ~500 TEC
• Half of the TEC will be sent back to Europe after they are wire-bonded
and tested at FNAL/UCSB/MEX
• Each of the 3 North American hybrid processing centers has a
minimum sustainable capacity of > 24/d  > 1600/mo
• We can lose a hybrid processing center at any time without loss of
hybrid throughput
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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Module and Rod Transportation
 Winter-Spring ’03: CERN reports that modules arriving from
US have huge numbers of damaged wirebonds
• US proposes a successful solution (encapsulate joints)
• CERN confirms
 Winter-Spring ’04: Rochester studies find flexible mother
cable in rod can damage module wirebonds in transport
• CERN/US engineers study problem and design Al stabilizers.
 Autumn ’04: US Discovered error in cross-bar placement
on roughly 50% of rod frames (type-H).
• Helsinki developing the repair method.
• US will ship back ~40 type H rod frames for repair
 Large numbers of rods will be stockpiled in advance of full
production of modules
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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US CMS Tracker Group
• Brown University
• R. Hooper, G. Landsberg, C. Nguyen, H. Nguyen
• University of California, Riverside (UCR)
• P. Gartung, G. Hanson, G.Y. Jeng, G. Pasztor
• University of California, Santa Barbara (UCSB)
• A. Affolder, S. Burke, C. Campagnari, F. Garberson, D. Hale, J. Incandela,
• P. Kalavase, S. Kyre, J. Lamb, R. Taylor, D. White + technicians
• University of Illinois, Chicago (UIC)
• E. Chabalina, C. Gerber, L. Nigra, T. Ten
• Fermilab (FNAL)
• M. Demarteau, A. Ronzhin, K. Sogut, L. Spiegel, S. Tkaczyk + technicians
• University of Kansas (KU)
• P. Baringer, A. Bean, L. Christofek, D. Coppage
• Mexican Consortium:
• Cinvestav: H. Castilla, R. Perez, A. Sanchez
• Puebla: E. Medel, H. Salazar
• San Luis Potosi: A. Morelos
• University of Rochester (UR)
• R.Demina, R. Eusebi, E. Halkiadakis, A. Hocker, S. Korjenevski, P. Tipton
19 joined group this past year (includes 3 UCSB technicians)
- now adding a few more post-docs & students
9 left the group (includes KSU plus several from UCSB)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
28
Preparations
 Good parts in large quantities are coming in
• Deliveries will not be smooth
• Meeting the schedule will require
• Higher than expected peak production rates
• Extremely robust and stable production lines
• Well trained personnel
 Previous proven capacity in US is 15 modules/day/site
• Further capacity expansions
• Almost no further fabrication equipment needed and no expansion in
test equipment required
• UCSB and FNAL have already completed these changes
• Achieve by extending work day (split shifts) and/or adding support
personnel to major production tasks
 Rates now possible:
• FNAL: 18/day sustainable and 21-24/d peak
• UCSB: 21/d sustainable and 27-30/d peak
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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Assembly Plates
TOB R-phi
# Fabricated
(parts made)
7
TOB Stereo
3
3
3
TEC R5 R-phi
2
2
2
TEC R5 Stereo
2
2
2
TEC R6
5
5
5
TEC R7*
2
2
2
TOB R-phi
5
5
5
TOB Stereo
3
3
3
Total
29
29
29
UCSB Plates
# Commissioned
(ready to be used)
7
plates used in module
production so far
7
FNAL Plates
Total of 29 plates in the US (capacity of 3 modules per plate)
UCSB setup to do TEC.OR.TOB in any given day
All have been exercised and are ready for use.
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
30
US Production Steps/Status
Task
Capacity
Manpower issues
Software
Issues?
Hardware
Issues
Hybrid Bonding &
Thermal Cycle
Module Assembly
Module Bonding
ARC Testing
LT Testing
ARC LED
Module
Reinforcing
Rod Assembly
Single rod test
Multi-rod burn-in
84/d
Mexico not yet online
No
No
>50/d
>50/d
>50/d
200/wk
>50/d
>50/d
None
None
None
UCR post-doc search
None
None
No
No
No
No
No
No
No
No
No
No
No
No
>6/d
>6/d
32/wk
None
UCSB post-doc search
No
Yes
No
Possibly
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
31
Module Mechanical Precision
 97% modules meet the current
stringent geometric specs
• Few failures are just outside the
relative angular requirement
 US now applies 2nd order
corrections
Dx(Frame-Sensor) (mm)
• No new modules outside specs
 Production quality excellent!
• Single Sensor Modules
Dx(Sensor-Sensor) (mm)
• 0.20% Faulty strips
• Introduced faults < 0.1% rate
• Two Sensor Modules
• 0.55% Faulty Strips
• Introduced faults < 0.1% rate
•
Dq(Frame-Sensor) (mdeg)
Will be much lower w/HPK
Dq(Sensor-Sensor) (mdeg)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
32
Misalignments and PT Resolution
MC Study of effect of misalignments
on pt resolution:
single m sample, pT=100 GeV
Recent US modules
Mean 0.0
RMS 3.5 mm
Min -7 mm
Max +7 mm
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
33
Hybrid Thermal Cycler/ARCS Status
Recently upgraded code
• PLL forcing
• Drifting pedestal check
• Added xml file autoupload
UCSB, FNAL and Mexico
City test stands are
commissioned and ready
We have all ARCS equipment+spares we need
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
34
DAQ Equipment Status
2 fully equipped Vienna boxes at UCSB and
FNAL
UCR Vienna box has enough DAQ
equipment for 4 slot stand
• TPO needed for 6 slots
2 single-rod stands
• Just received enough oMUX cards so
re-cabling between rod types
unnecessary
2 multi-rod thermal cyclers
• Both MUXs have been used to test 5
rods tested simultaneously
• Have enough equipment to fully
commission system
• Only 5 MUX cards + DAQ
spares missing
To instrument UCR Repair Center & have all
critical spare components required in the US we
need:
• 2 TSC – in production?
• 3 TPO – in production?
• 2 eMUX boards – “ “
• 7 oMUX boards – “ “
• 5 VUTRI - in production
• 10 PAACB – half are built, half being
assembled now
• 10 hybrid-to-utri adaptors – in production
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
35
DAQ Equipment Status II
With current TPOs :
• With 1 failure we lose either:
• 70% capacity of a Vienna box
• 1 single rod system
• 1 multi-rod system
With current TSC complement:
• With 1 failure we lose either:
• 1 Vienna box
• 1 single rod stand, or
• 1 rod thermal cycler
• Cannot run more than 16 APVs in
UCR stand
Without the additional MUX,
VUTRI, PAACB, hybrid-to-utri
adapter boards
• Can’t run UCR LT at full capacity
which is crucial to ops of US
Repair center
Component shortages and
failures ↔ potential to severely
limit production testing capacity
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
36
Backup Equipment
 Spare sensor and hybrid tools were produced at UCSB for
UCSB, FNAL and Brussels.
 Upgraded OGP computer OS and OGP software
• Automated routine occasionally missed fiducial marks. The new
software fixes this problem.
 Set up back-up gantry computers with spare U600
controllers and expansion cards already installed.
 We purchased backup components for every piece of
production equipment or tooling that, if it were to fail, would
cause a reduction in production rates.
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
37
US Module Types
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
38
First HPK Module Results From
UCSB
6 R6 modules built using new
HPK sensors
All 6 modules are perfect
HPK R6 Module I-V
800
700
IV profile as expected
600
• Turn-on at low voltage
• Plateau bias current
~ 600-700 nA
Bias Current (nA)
• Not a single flaw
29587
29589
500
29592
400
27627
300
27628
27629
200
100
0
450
400
350
300
250
200
150
100
50
0
Bias Voltage (V)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
39
UCSB TEC Production
 Miscellaneous info
• Have built all required types successfully: R5S, R5N, R6, R7
• 25 shipping boxes (20 modules each) built
• All carrier plates (100 per type) and all wirebond fixtures complete
 Capacity
• Could saturate UCSB production capacity with TEC modules
• Will depend on need and availability of parts as well as TOB production
parts availability and schedule
• Another step higher in production capacity (by extending work day via
overlapped shifts):
• Bonding and Testing capacity adequate
• LT testing capacity limit is ~100 per week
• Eventually will be mostly TEC (TOB burn-in shifted to rods) or sampled
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
40
Outstanding problems/issues
 DB stability
• For our production rates, we must automate all DB queries.
• Need to standardize and maintain stable all data structures
• We rely on data to be accurate and complete from all preceding
processing of components and structures.
• Successfully collaborating with our int’l colleagues
 Old or un-installable components
• Prefer to remove them physically from our production sites and to
have them properly marked in DB
 Rods
• We have recently achieved major milestones with rods but we are
not out of the woods. See below
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
41
Rods
 Rod assembly understood
 Rod Testing
• Single rod testing is under control
• Multi-rod
• Had many problems with software and hardware
• Recently achieved major milestone at FNAL
• Can now run maximum at capacity (8 SS rods or 6 DS rods – i.e. up to 72
modules) for 3 days with thermal cycles!
 Remaining
• Get UCSB multi-rod test stand operational at same level as FNAL
• Had problems with some hardware- now fixed
• To finalize fault finding tests
• Finalize Database info and transfer methods
 Need experience with many rods to determine if there are
issues with components.
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
42
Mechanics:Tracker Outer Barrel
Rods before/after modules installed
0.9 m
Final Cylinders at CERN
Full Prototype Wheel
(for MSGCs)
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
43
Mechanics: Tracker Inner Barrel
Support mechanics :
CF space frames
and/or Honeycomb
structures
AOH
CCU25
Cooling loops
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
44
Mechanics:Tracker End Caps
Digital
Optical
Hybrid
R#6
Interconnect
Board
Analogue
Optical
Hybrid
Frontend
Hybrid
R#4
R#2
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
45
Substructures in Test Beams
 May 2003 Beam Test (Bunched 25 ns beams
of muons and pions)
•
Systems of 6-10 TIB, TEC, TOB modules
Detector performance as expected!
 May 2004 Beam Test
•
•
•
Beam Direction
Multiple rods, petals, and shells
Larger system integration tests
Tracking tests
• Position resolution, hit efficiency
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
46
The TOB Cosmic rack
in the test beam
in June 2004
Michael Eppard (CERN)
on behalf of TOB CERN
23rd July 2004
Michael Eppard
Test General Meeting
23.07.2004
S/N Module 4 @ 300V (PEAK)
S/N > 32
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
48
ORCA reconstruction of tracks
Ivan Reid
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
49
Cost Performance
 Delays have cost us
• Recently extended production to Jan. 2006
• Net increase of 600k$ in project
 Other US costs
• Paid for Masks (NRE) at Hamamatsu to be able to transfer sensor
order from ST
• 290k$
• Misc. equipment for higher/more robust production
• ~100K$
 Anticipated costs
• US Tech. to work at CERN on hybrids for 6 months
• 50k$ (?)
 Currently schedule has no contingency…
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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SST Schedule
Completion:
Jan. 2006
An aggressive
schedule
Will be revised:
Assumes
500 hybrids/wk
Actual
400 hybrids/wk
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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Summary
 No longer have a manpower shortage
• In process of adding some personnel at UCSB
 Have studied all possible threats to production stability
• Purchased or manufactured spares
 Further increased capacity to ~50 modules/d
• Requires manpower (~ 4-5 FTE total)
 Systems
• All stages of production have been exercised and are near to final
except rod testing
• Multi-rod stands rapidly converging
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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Conclusion
 Strips have been at war with poor components
• ST sensors have too many uncertainties
• Switched to HPK!
• Hybrids problem is solved – large deliveries starting early ‘05
 US Role has been extremely important
 We are doing everything we can do
US CMS Si Tracker Project presentation to the Program Management Group at Fermilab; 22 October 2004, J. Incandela (UCSB)
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