AOW 2003 Prague - SCT ReportZ. Doležal 116-Sep-03 ATLAS SCT Status Report zOverview of major production issues uSilicon sensors & FE ASIC procurement uPower & Readout Õ Power supplies Õ Readout Õ DAQ & DCS u Barrel Õ Barrel modules Õ Barrel Harnesses Õ Barrel Engineering uEndcap Õ Endcap modules Õ Endcap Engineering uTestbeam uSchedule & critical issues

AOW 2003 Prague - SCT ReportZ. Doležal 216-Sep-03 SCT silicon sensors procurement zProduction & acceptance testing of the silicon sensors is ~ complete zQuality of the detectors is excellent uAll quantities within specification uHamamatsu barrel detector summary Very low leakage currents Typically <200 nA at 500V bias at 20 o C >99.9% good readout strips uCIS detectors: some IV problems 0.2  A # defects

AOW 2003 Prague - SCT ReportZ. Doležal 316-Sep-03 SCT ASIC procurement zPost irradiation studies indicate 10years LHC zProduction stopped by ATMEL  Use ASICs with 1 ch. out of specs wherever reasonable (possible): qualification, rework, etc. Wafers delivered1053 Wafers accepted (Yield >10%)798 Yield of the accepted wafers is26% Fraction of wafers rejected24% Number of die accepted53K % of total requirement (61.5K)~86% Die with 1 channel out of spec~24%

AOW 2003 Prague - SCT ReportZ. Doležal 416-Sep-03 SCT Readout & Power system zSystem specification u4088 modules x 1536 channels u6 x 10 6 readout channels u40 kW power u100 m detector  control room zReadout = RODs Õ48Channels/VME card ÕPre-series of 7 cards being evaluated +BOC ÕOptoelectronic Back of crate cards ÕFirst 10% batch in production ÕCustom Opto-packages in production in Taiwan + TIM ÕAvailable for assembly +Crates, backplanes &SBC +Optical fibres z System status uAll elements prototyped and ATLAS PRR completed uReadout & power needed for testing during assembly z Power & Cables = LV0 cards (Prague) Õ4 channels/card Õ10% production delivered and burned in +HV0 cards Õ8 channels/card Õ10% production launched +Backplane, 48V &5V power supplies +Crate controller, crates +Patch-panels ÕPP3 with filters & limiters on ATLAS +Cables Õ4 types ÕTender started in August

AOW 2003 Prague - SCT ReportZ. Doležal 516-Sep-03 SCT Power system schematic PS CRATE PP3 (4088) COMMON MODE CHOKES VOLTAGE LIMITER PP2 Factory SPLICE PPB1 or PPF1 PPF0 END-CAP ONLY DETECTOR MODULE (4088) 48 VDC POWER PACK CCCC INTERLOCK 6 HV CARDS 12 LV CARDS PS CRATE (4) DCS INTERLOCK MATRIX DCS VIA CANbus EARTH TIE Near PP3 SINGLE POINT EARTH LOW MASS POWER TAPE LOW MASS POWER TAPE TYPE II CABLE TYPE III CABLE TYPE IV CABLE PS RACK (22)

AOW 2003 Prague - SCT ReportZ. Doležal 616-Sep-03 zReadout (ROD/BOC/TIM) system is under ‘user evaluation’ uFirst unit has readout 4 modules in different configurations uPerformance meets specification – trying to reduce calibration time uSystems are being prepared for macro-assembly sites zPower system uFirst crate has been tested with dummy loads & modules, 10% LV cards delivered uPerformance meets specification uSystems are being produced for macro-assembly sites SCT Readout & Power system DateNo. of 48Ch cardsTotalComment August 20037Pre-series September First series deliveries October November January April Total for assembly January spares92+sparesTotal available for installation

AOW 2003 Prague - SCT ReportZ. Doležal 716-Sep-03 SCT DAQ & DCS zMajor effort now underway to develop DAQ & DCS within ATLAS framework uAssembly & integration sites

AOW 2003 Prague - SCT ReportZ. Doležal 816-Sep-03 SCT DAQ & DCS

AOW 2003 Prague - SCT ReportZ. Doležal 916-Sep-03 SCT Module Design (Endcap) strip direction 4 wedge shape silicon sensors 768 p-in-n strips, single sided supplied by Hamamatsu and CiS sensor alignment < 5µm 40mrad stereo angle SPINE TPG bar for heat removal (1700 W/m/K) AlN wings for mechanical stability hybrid connected to sensors only by fanins  thermal split 12 ABCD3TA binary read-out chips hybrid: flex circuit on carbon- carbon

AOW 2003 Prague - SCT ReportZ. Doležal 1016-Sep-03 SCT Barrel modules zBarrel modules are in production uBarrel module PRRMay 01 uSilicon sensor production completeMay 03 uBarrel module PARMay 03 uHybrids complete (target)Aug /2500 (49%) uBaseboards complete (target)Oct /2530 (59%) uModules-Japan 445/ 786 (57%) uModules-UK 144/ 549 (26%) uModules-US 104/ 483 (21%) uModules-Scand (qualification soon)31/ 404 ( 8%) uTotal (2112+5%)734/ 2218 (33%) uModules complete (target)Apr 04 z Production goal is to complete by Apr 04 with a yield > 90%

AOW 2003 Prague - SCT ReportZ. Doležal 1116-Sep-03 SCT Barrel baseboard & hybrid production Production rate is under control – (recently stalled, but recovered)

AOW 2003 Prague - SCT ReportZ. Doležal 1216-Sep-03 SCT Barrel module assembly zNote : Backup slide on s-curves zCritical issues: uGet all clusters into production uProduction yield > 90%

AOW 2003 Prague - SCT ReportZ. Doležal 1316-Sep-03 SCT Barrel Optoharnesses zOpto-harnesses are in production uBarrel LM tape production complete uFirst 2 batches of 8 harnesses each for Barrel-3 evaluated uStart-up delay was caused by ESD damage to DORIC ASIC & other production issues uStart of production recommended uSchedule can be recovered (complete production by the end of 2003)

AOW 2003 Prague - SCT ReportZ. Doležal 1416-Sep-03 SCT Barrel LM tapes & patchpanels Endcap Barrel Endcap Barrel

AOW 2003 Prague - SCT ReportZ. Doležal 1516-Sep-03 SCT Barrel Optoharnesses

AOW 2003 Prague - SCT ReportZ. Doležal 1616-Sep-03 SCT Barrel Engineering – Support Structure uAll 4 CF cylinders delivered u…but there are ~40000 small parts! uB3 delivered to RAL uB4,5,6 assembly test starting

AOW 2003 Prague - SCT ReportZ. Doležal 1716-Sep-03 SCT Barrel Engineering - Cooling uDesign is finalised Õ48 module units ÕCuNi with soldered joints uConcept tested on sector uCooling design is evolving; which causes delays uProduction is ready to start

AOW 2003 Prague - SCT ReportZ. Doležal 1816-Sep-03 SCT Barrel Engineering - Assembly zAssembly phases 1.Spindle & service cages Underway 2.FSI Completed 3.Opto-harnesses Delivered 4.Cooling Waiting cooling 5.Modules Modules available Oxford Assembly site almost ready Õ4 months late B3 harness assembly at RAL

AOW 2003 Prague - SCT ReportZ. Doležal 1916-Sep-03 SCT Endcap Modules zModules uEndcap module FDR & PRRAug 02 & Dec 02 ÕModule design was validated as suitable for production ÕThermal & electrical performance validated zProduction uHybrids ÕHybrid production & assembly transferred to industry ÕPre-series of 200 in production 44(+48) delivered, remaining show delamination problems ÕFull order for 2300 placed (2500 in total) uSpines Õ229 produced by Protvino/MPI, but with low quality ÕContract for 2500 issued uModule assembly Õ3 out of 7 production sites qualified for production Õ1rst modules within specification ÕAim is to have all sites qualified in 2 months ÕTarget is to complete module production in Dec 04

AOW 2003 Prague - SCT ReportZ. Doležal 2016-Sep-03 SCT Endcap hybrid & module production CICOREL Hybrid SA CERN Cracow RAL Freiburg Geneva/CERN Melbourne UK Valencia NIKHEF MPI/Prague Freiburg ProducerReceptionHybrid QA Module Assembly

AOW 2003 Prague - SCT ReportZ. Doležal 2116-Sep-03 SCT Endcap Modules uHybrid production is starting – need industry to sort out quality problems and achieve required rate uSpine production is critical uOther components are ~ OK (with additional collaboration effort) uRapid cluster qualification is critical uAggressive production plan being developed (see backup)

AOW 2003 Prague - SCT ReportZ. Doležal 2216-Sep-03 SCT Endcap Endcap Engineering - Structure zSupport structures uCF support cylinders & disks ordered uFirst support cylinder shown ÕScheduled delivery Aug 03 ÕProblems with wings which will cause 3-4months delay uFirst 4 discs delivered ÕScheduled completion Dec 03 ÕAgain many small parts

AOW 2003 Prague - SCT ReportZ. Doležal 2316-Sep-03 SCT Endcap Endcap Engineering - Cooling zCooling uDesign is finalised & prototyped uProduction of cooling circuits ready to start z Services uHarnesses expected now uLM tapes & PPF0 prototyped

AOW 2003 Prague - SCT ReportZ. Doležal 2416-Sep-03 SCT Testbeam 2002/3 & 2004 zUnderstanding of intrinsic performance of an increasing number of real modules with final components uJune 2002, 2 weeks uJuly 2002, 2 weeks uAugust 2002, 2 weeks uMay 2003, 2 weeks including 25ns measurements uSeptember 2003, ~2 weeks; irradiated modules; common DAQ run u2004 – Plans for tracking; common DAQ

AOW 2003 Prague - SCT ReportZ. Doležal 2516-Sep-03 SCT Testbeam 2002/3 (preliminary)

AOW 2003 Prague - SCT ReportZ. Doležal 2616-Sep-03 Example of a second track due to hard interaction with silicon. SCT Testbeam track finding studies (preliminary) Example of a track reconstructed in telescope & 4 planes efficiency

AOW 2003 Prague - SCT ReportZ. Doležal 2716-Sep-03 SCT schedule & Critical issues zBarrel SCT (ready for integration 15/12/04; ID ready 22/05/05) ÕModules~33% complete~3 months delayFull production all clusters Yield is critical ÕHarnesses~1% complete~4 months delay ÕBarrel-3 complete~3 months late ÕB3 services ~4 months late ÕB3 assembly start~5 months late zEndcap SCT (ready for integration 01/03(05)/05; ID ready 16/08(10)/05) uCurrent schedule delivers the Endcaps 2 & 4 months late wrt baseline ÕModulesStarting productionSpines critical ÕHarnessesStarted ÕDisc-9To be delivered now~4 months lateCritical ÕD9 services Most orders placed~6 months lateCritical ÕD9 assembly start~5 months late zPower, Readout & cables are OK for the experiment but critical for use during assembly

AOW 2003 Prague - SCT ReportZ. Doležal 2816-Sep-03 Invitation For The Lab Tours zA uStrip Detector Lab - Institute of Physics AS ÕStrip detectors for ATLAS ÕLVPS uSCT Lab - Charles University ÕEnd Cap Module Production zB uSemiconductor Lab - CTU, IEAP ÕEnd Cap Module Production

AOW 2003 Prague - SCT ReportZ. Doležal 2916-Sep-03 Backup - SCT ABCD Yield

AOW 2003 Prague - SCT ReportZ. Doležal 3016-Sep-03 Backup - SCT Barrel Hybrid (Pitch adaptor problem) z 2500 hybrids are required to produce the % barrel modules zAs of June 1st, 1333 hybrids have been produced; Of these: u~ 200 have problematic pitch-adaptors. First problems were seen at about hybrid number 400, and then again after about hybrid uThe problem is in the Aluminium metallization (on glass substrates). uThe 2nd encounter was very severe and the vendor could not reproduce the previous good metallization even after numerous trials. zAn alternative vendor has been identified and the quality of the PAs is being cross-checked by barrel clusters before resuming production. zAlthough the delivery of hybrids had stopped for 2-3 months, the hybrid production excluding the last PA attachment has continued. zOnce the PA production is on track, the hybrid delivery will be much faster.

AOW 2003 Prague - SCT ReportZ. Doležal 3116-Sep-03 Backup - SCT Module s-curves zThe SCT uses binary electronics and is calibrated using threshold scans i.e. the occupancy is measured as a function of the threshold level. ÕWith no injected charge this gives the noise occupancy ÕCharge injection via a calibration capacitor gives efficiency zOn some fraction of the modules the noise occupancy curves below the operating point of 1fC have ‘distorted s-curves’ zNo significant differences seen in modules between standard modules and those with distorted s- curves. All noise occupancy values are more than factor 10 less than the specification All ASICsModule Average Link 0 averageLink 1 average Log(Occupancy) at 1fC (83 ref modules) All ASICsModule Average Link 0 averageLink 1 average Log(Occupancy) at 1fC (25 distorted-s modules)

AOW 2003 Prague - SCT ReportZ. Doležal 3216-Sep-03 SCT Endcap Module Production Plan