joint atlas cms slhc optoelectronics working group francois vasey on behalf of wg

20-Mar-0720-Mar-07 [email protected]@cern.ch 11

Joint Atlas CMS SLHC Optoelectronics Working Joint Atlas CMS SLHC Optoelectronics Working GroupGroup

Francois Vasey on behalf of WGFrancois Vasey on behalf of WG

Working Group HistoryWorking Group History and and StatusStatusResultsResultsTwo (not so common) Two (not so common) development projectsdevelopment projectsConclusionsConclusions


Joint WG started in 2005Joint WG started in 2005

23 June 2006: Proposal for a different operating 23 June 2006: Proposal for a different operating mode mode

Move from reporting to collaborating modeMove from reporting to collaborating mode Identify the areas of expertise of collaboratorsIdentify the areas of expertise of collaborators Collaborate in smaller subgroups, organize topical Collaborate in smaller subgroups, organize topical

meetingsmeetings Prepare common R&D proposalsPrepare common R&D proposals Report at bi-yearly plenary meetingsReport at bi-yearly plenary meetings


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Joint Optoelectronics Working Group Resources Distribution

Series1

5

6.6

11.4

CERN

EU

US

12.8

10.2 ATLAS

CMS

27 Sep 2006, LECC06 Valencia: 27 Sep 2006, LECC06 Valencia: Working Group Identity RevealedWorking Group Identity Revealed


27 Sep 2006 , LECC06 Valencia: 27 Sep 2006 , LECC06 Valencia: Interpretation of Survey ResultsInterpretation of Survey Results

13 institutes, 23 FTE13 institutes, 23 FTE 3 institutes above 3 FTE: SMU, CERN, IRES3 institutes above 3 FTE: SMU, CERN, IRES 2 development projects announced: 2 development projects announced:

Link on chip SOS (SMU, ongoing)Link on chip SOS (SMU, ongoing) Versatile bidirectional link (CERN, proposal)Versatile bidirectional link (CERN, proposal)

10 institutes below 3 FTE (0.8 average)10 institutes below 3 FTE (0.8 average) Mostly involved in testingMostly involved in testing

Core activity: ex-ATLAS and CERNCore activity: ex-ATLAS and CERN Optoelectronics developments and testingOptoelectronics developments and testing

Periphery: ex-CMSPeriphery: ex-CMS Hybrids, Backends, system modelingHybrids, Backends, system modeling

No system level workNo system level work


27 Sep 2006 , LECC06 Valencia: Discussion27 Sep 2006 , LECC06 Valencia: Discussion

concentrate on a few common projectsconcentrate on a few common projects only only Work in small subgroupsWork in small subgroups Work in collaborative mode with convergence Work in collaborative mode with convergence

datesdates Identify sub-projects of general interest before Identify sub-projects of general interest before

end 2006end 2006

Did not agree on common link developmentDid not agree on common link development


Dec 06: 3 Themes for joint Dec 06: 3 Themes for joint projectsprojects

Group a- Lessons learned and to be learned from Group a- Lessons learned and to be learned from LHC. LHC.

K.K. Gan (Ohio)K.K. Gan (Ohio) F. Vasey (CERN)F. Vasey (CERN) T. Weidberg (Oxford)T. Weidberg (Oxford)

Group b- Radiation hardness and reliability of Group b- Radiation hardness and reliability of optoelectronic components for SLHC. optoelectronic components for SLHC.

J.M. Brom (Strasbourg)J.M. Brom (Strasbourg) K. Gill (CERN)K. Gill (CERN) C. Issever (Oxford) plus ATLAS institutes participating to C. Issever (Oxford) plus ATLAS institutes participating to

SLHC radiation test programmeSLHC radiation test programme


Group c- Common optical link reference test Group c- Common optical link reference test bench.bench.

J-M Brom (In2P3 Strasbourg)J-M Brom (In2P3 Strasbourg) B. Checcucci (INFN Perugia)B. Checcucci (INFN Perugia) J. Coughlan (RAL)J. Coughlan (RAL) K.K Gan (UofOhio)K.K Gan (UofOhio) C. Hill (Bristol)C. Hill (Bristol) T. Romanteau (In2P3 Polytechnique)T. Romanteau (In2P3 Polytechnique) R. Russack (UofMinnesota), D. Baden (UofMaryland)R. Russack (UofMinnesota), D. Baden (UofMaryland) J. Ye (SouthernMethodistUniversity)J. Ye (SouthernMethodistUniversity)


Joint Atlas CMS SLHC Optoelectronics Working Joint Atlas CMS SLHC Optoelectronics Working GroupGroup

Working Group A: Lessons LearnedWorking Group A: Lessons Learned

K.K GanK.K Gan F. VaseyF. Vasey T. WeinbergT. Weinberg

CostCost MaterialMaterial PersonnelPersonnel

QualityQuality TodayToday Long term monitoringLong term monitoring

TechnologyTechnology ComponentsComponents ArchitecturesArchitectures


Cost in CHF, materialCost in CHF, material

ATLAS PIXATLAS PIX ATLAS SCTATLAS SCT CMS TKCMS TK

QuantityQuantity 41444144 1226412264 4280042800

Production Production CostCost

1’527k1’527k 3’486k3’486k 12’597k12’597k

DevelopmeDevelopment Costnt Cost

455k455k 250k250k 2’000k2’000k

Production Production Cost per Cost per linklink

369369 284284 294294

DevelopmeDevelopment Cost per nt Cost per linklink

110110 2020 4747


Cost: lessons learnedCost: lessons learned All optical links ended up being expensiveAll optical links ended up being expensive

~ 300 CHF/link, production cost~ 300 CHF/link, production cost 25%-30% for cables and connectors (more for Atlas Pixels)25%-30% for cables and connectors (more for Atlas Pixels) 70%-75% for actives + hybrid/flex70%-75% for actives + hybrid/flex Plus 10% - 30% development costPlus 10% - 30% development cost

Overproduction (included in cost)Overproduction (included in cost) Covers assembly yield, test systems and prototypes, QA Covers assembly yield, test systems and prototypes, QA

testing, installation yield, unforeseen problemstesting, installation yield, unforeseen problems Up to 130% - 140% * needed quantityUp to 130% - 140% * needed quantity Spares down to % levelSpares down to % level

Maximize bandwidth usage, limit number of variants, Maximize bandwidth usage, limit number of variants, foresee overproductionforesee overproduction

Do not allow cost estimates to drive technology Do not allow cost estimates to drive technology choices.choices.


Cost in MY, personnel (large Cost in MY, personnel (large uncertainty)uncertainty)

ATLAS PIXATLAS PIX ATLAS SCTATLAS SCT CMS TKCMS TK

QuantityQuantity 41444144 1226412264 4280042800

R&DR&D 1212 1717 5050

ProductionProduction 1111 2323 5555

InstallationInstallation 55 1010

Links/MYLinks/MY 148148 307307 372372


Cost: lessons learned (2)Cost: lessons learned (2)

Over 180 MY of effortOver 180 MY of effort R&D:Prod:Install 45%:45%:10% R&D:Prod:Install 45%:45%:10% 11 years11 years Not included in ATLAS SCT and CMS TK project costNot included in ATLAS SCT and CMS TK project cost

Effort per link seems to stabilize above 10k pcsEffort per link seems to stabilize above 10k pcs Very few points, large uncertaintyVery few points, large uncertainty

Share resources for systems < 10k linksShare resources for systems < 10k links 10k links ~ 30 MY10k links ~ 30 MY Institute in charge should have more than 3 FTEs during Institute in charge should have more than 3 FTEs during

10 years10 years


Quality (19 March 2007)Quality (19 March 2007)

ATLAS SCTATLAS SCT

DataDataATLAS SCTATLAS SCT

TTCTTCCMS TKCMS TK

QuantityQuantity 41444144 4280042800

DeadDead 0.5%0.5% 0.2%0.2% 0.04%0.04%

ESD ESD mishandling mishandling packagingpackaging

Broken fibers Broken fibers mishandlingmishandling

Broken fibers Broken fibers mishandlingmishandling

ProblematicProblematic 0.4%0.4% ?%?% 0.3%0.3%

Slow Turn OnSlow Turn On

systemsystem

Light coupling Light coupling into MM fiberinto MM fiber

packagingpackaging

Excess loss Excess loss Broken ribbonsBroken ribbons

mishandlingmishandling


Lessons learned: QualityLessons learned: Quality

SystemSystem Avoid use of single fibres and pigtails on detectorAvoid use of single fibres and pigtails on detector Do not allow excessive fibre-slack without Do not allow excessive fibre-slack without

corresponding management scheme.corresponding management scheme. Use ruggedized ribbon/fiber only.Use ruggedized ribbon/fiber only. Avoid simplified and/or compact connectors which Avoid simplified and/or compact connectors which

are fragile and difficult to dismount and clean.are fragile and difficult to dismount and clean. Always use balanced codesAlways use balanced codes Separate front-end and opto-modules (i.e. with Separate front-end and opto-modules (i.e. with

TP)TP)


Lessons learned: QualityLessons learned: Quality QAQA

Develop and distribute fibre-test tools which allow on-line channel Develop and distribute fibre-test tools which allow on-line channel quality testing, providing immediate feedback during construction.quality testing, providing immediate feedback during construction.

Ensure QA is for identical conditions to final systemEnsure QA is for identical conditions to final system Test system with all final production components before launching Test system with all final production components before launching

productionproduction Do more longer term testingDo more longer term testing Improve traceability of production lotsImprove traceability of production lots Respect ESD precautionsRespect ESD precautions

Excellent overall qualityExcellent overall quality Built in redundancy helps mitigate failuresBuilt in redundancy helps mitigate failures Do not relax QADo not relax QA Do not compromise ruggednessDo not compromise ruggedness


WGa: Lessons learned and to be WGa: Lessons learned and to be learned conclusionslearned conclusions

Excellent progressExcellent progress TechnicalTechnical SocialSocial

Quality to be regularly reviewedQuality to be regularly reviewed System performance to be monitoredSystem performance to be monitored Technology lessons still to be writtenTechnology lessons still to be written Full document ready for TWEPP07 Prague?Full document ready for TWEPP07 Prague?

Joint ATLAS CMS noteJoint ATLAS CMS note

Results are immediately usefulResults are immediately useful ATLAS and CMS not vastly different, with ATLAS and CMS not vastly different, with

complementary experience.complementary experience.


Working Group B: Radiation HardnessWorking Group B: Radiation Hardness

J.M. Brom (Strasbourg)J.M. Brom (Strasbourg) K. Gill (CERN)K. Gill (CERN) C. Issever (Oxford) C. Issever (Oxford)

plus ATLAS institutes plus ATLAS institutes participating to SLHC participating to SLHC radiation test radiation test programmeprogramme

Define irradiation testDefine irradiation test Evaluate devices thoroughlyEvaluate devices thoroughly

How many?How many? Selection criteria? Selection criteria? Test parameters?Test parameters? Annealing? Annealing? Pass/Fail criteriaPass/Fail criteria ? ?

Survey radiation sourcesSurvey radiation sources Which set of beam types Which set of beam types

and energies ? and energies ? Ageing tests?Ageing tests?


Radiation hardnessRadiation hardness How do we manage all this work with so few people?How do we manage all this work with so few people?

Define a minimal-sufficient set of tests requiredDefine a minimal-sufficient set of tests required Define and agree on common protocoles and proceduresDefine and agree on common protocoles and procedures select one or a limited number of baseline system options select one or a limited number of baseline system options

and then concentrate on testing these componentsand then concentrate on testing these components Attempt to share the load and the resultsAttempt to share the load and the results

Next subgroup meeting to be called by C. IsseverNext subgroup meeting to be called by C. Issever

In the meantime, 5 independent irradiation tests In the meantime, 5 independent irradiation tests plannedplanned


Working Group C: Common Reference benchWorking Group C: Common Reference bench

J-M Brom (In2P3 Strasbourg)J-M Brom (In2P3 Strasbourg) B. Checcucci (INFN Perugia)B. Checcucci (INFN Perugia) J. Coughlan (RAL)J. Coughlan (RAL) K.K. Gan (UofOhio)K.K. Gan (UofOhio) C. Hill (Bristol)C. Hill (Bristol) T. Romanteau (In2P3 T. Romanteau (In2P3

Polytechnique)Polytechnique) R. Russack (UofMinnesota), R. Russack (UofMinnesota),

D. Baden (UofMaryland)D. Baden (UofMaryland) J. Ye J. Ye

(SouthernMethodistUniversi(SouthernMethodistUniversity)ty)

Define Define Required Required

performanceperformance Evaluation criteriaEvaluation criteria Test proceduresTest procedures Test setupTest setup Support Support

requirementsrequirements


Next subgroup meeting to be called by J. YeNext subgroup meeting to be called by J. Ye How many independent setups built in the How many independent setups built in the

meantime?meantime?

data

control

clk

data

clk

control

serializer De-serializer

TP1

TP2 TP3SER DES


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Joint Optoelectronics Working Group Resources Distribution

Series1

5

6.6

11.4

CERN

EU

US

12.8

10.2 ATLAS

CMS

Two development projectsTwo development projects

22March 20 2007

Silicon-On-Sapphire (SOS) 0.25 Silicon-On-Sapphire (SOS) 0.25 m Technology m Technology EvaluationEvaluation

J. Ye et al., SMUJ. Ye et al., SMU Peregrine 0.25 m SOS has been evaluated and is found to

be suitable for rad-hard ASIC development for LHC upgrade. No special layout technique (ELT, guard ring) is needed.

Technology Advantages: Low power, low cross talk, good for mixed signal ASIC designs. Economical for small to medium scale ASIC development. A

multi-project run of 3×3 mm2 for 100+ chips cost ~$35k. TID on transistors with gamma (Co-60):

With a floating substrate and up to 4 Mrad, leakage current increase is observed but saturates after ~ 100 krad. This increase anneals back at room temperature in a few weeks.

With a grounded substrate during irradiation, there is no measurable leakage current and threshold voltage change in both NMOS and PMOS.

The mechanism of the grounded substrate is under study. SEE using shift registers with 230 MeV proton:

No SEE was observed with flux < 1×109 proton/cm2/sec. All shift registers function error free after a total fluence of

1.9×1013 proton/cm2 and ionizing dose of 106 Mrad (Si).

23March 20 2007

Link-On-Chip (LOC) 1st PrototypeLink-On-Chip (LOC) 1st Prototype J. Ye et al., SMUJ. Ye et al., SMU

Status: A 2.5 Gbps LOC1 prototype

chip has been designed and submitted for fabrication. Chips will be back to SMU for tests and evaluations in mid May.

If the tests (in-lab and irradiation) for LOC1 are successful, LOC2, which is aimed at a complete serializer chip of 2.5 to 3.125 Gbps data rate, will be designed and submitted in Spring to Summer of 2008.

Fiber attachment schemes will be studied after the functional tests of LOC1.

LOC1

24March 20 2007

GOL Test up to 100 MradGOL Test up to 100 Mrad J. Ye et al., SMUJ. Ye et al., SMU

Test with 230 MeV proton beam TID: survived 106 Mrad (Si) without current increase. Chip fully

functioning during and after irradiation. SEE: no error when flux < 1×109 proton/cm2/sec. When flux =

5×1011 proton/cm2/sec, error cross section is measured to be 1.1×10-13 error·cm2/proton (loss of link) and 1.1×10-14 error·cm2/proton (bit error).

Jitter:Complies with the modified (1.6Gbps vs 1.25 Gbps) IEEE

Gigabit Ethernet standards.

Before irradiation After irradiationJitter

ComponentsTx clk Serial Data Tx clk Serial Data

Random (RMS) 10.2ps 4.6ps 11.1ps 4.7psDeterministic (Pk-Pk)

67.6ps 55.6ps 67.0ps 57.9ps

[email protected]

s106.7ps

211.7ps

111.8ps

25March 20 2007

Versatile link project: P2P Versatile link project: P2P architectures architectures

F. Vasey et al. CERNF. Vasey et al. CERN

oTx

oRxeTRx

oTx

oRx

Module1

eTRxprotocol

Module2

Module3 protocol

Module4

Modulen

Downstream

UpstreamFront-End Back-End

TTCECTTCECDAQ

26March 20 2007

Versatile link project: PON Versatile link project: PON architecturesarchitectures

F. Vasey et al. CERN F. Vasey et al. CERN

oTx

oRxeTRx

oTx

oRxeTRx

splitter

eTRx

eTRx

eTRx

oTx

oRx

oTx

oRx

oTx

oRx

splitter

Module1

Module2

Module3

protocol

protocol

protocol

protocol

27March 20 2007

Versatile link project: the best of both Versatile link project: the best of both worlds?worlds?

F. Vasey et al. CERN F. Vasey et al. CERN

oRxDAQ

FPGA

oTx

oRxeTRx

eTRx

eTRx

eTRx

oTx

oRx

oTx

oRx

oTx

oRx

oRxoRxoRx

oTxsplitter TTCFPGA

oRxprotocol

protocol

protocol

protocol In detector

28March 20 2007

Building blocksBuilding blocks

oRx

FPGA implementation

oTx

oRx

eTRx

oRxoRxoRx

splitter

Privateprotocol

oRx

oTx

GBT

Versatile Link

ld

tia


ConclusionConclusion

Joint ATLAS CMS SLHC Optoelectronics WG Joint ATLAS CMS SLHC Optoelectronics WG exists and is well aliveexists and is well alive

3 subgroups defined3 subgroups defined WGa is already producing useful resultsWGa is already producing useful results WGb and WGc are on the right track, but still need WGb and WGc are on the right track, but still need

to get organized to reach cruising speed.to get organized to reach cruising speed. More results at TWEPP07More results at TWEPP07

Independent projects and tests are running in Independent projects and tests are running in parallel to common effort.parallel to common effort. Keep diversity in common test frameworkKeep diversity in common test framework

joint atlas cms slhc optoelectronics working group francois vasey on behalf of wg

Documents

common link

atlas institutes

groupworking group

group identity

common development

common projects onlywork

lecc06 valencia

atlas pixels70