DDetector etector CControl ontrol SSystemystemELMB ProductionELMB Production

ATLASDCS

• Evolution

• Different versions of ELMB

• Production strategy

• Radiation Qualification

• Testing

• Quality Assurance

• Procedure for failure

• Conclusion

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• LMB (50 modules)– Component pre-selection

• ELMB v1 (20 modules)– PCB had 8 layers

• ELMB v2 (300 modules)– 6 layers– Class 6

• One more iteration required– Final check

PCB EvolutionPCB Evolution

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS ELMB VersionsELMB Versions

• ELMB comes in two “flavours”– With ADC– Without ADC

• Same software supplied on both versions– Non-standard software must be loaded by user

if required

• Same tests performed (with exception of ADC)

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS Costing (Side A)

64 channel differential ADC + CAN ELMB 3Updated 21.01 2002 B.Hallgren

Side A CAN 128K processor Price (CHF) Price (CHF)Quant Component Mod 500pc Mod 5000pc

1 ATMEGA128L 500 $9.65 5K $8.70 15.63 14.09 Supplied by CERN radiation 1 AT90S2313-4SC 300 $2.10 5k $1.90 3.40 3.08 Supplied by CERN radiation 1 SAE81C91 ? 9.00 6.75 Supplied by CERN radiation 1 PCA 82C250T 2.30 1.731 u-Cap 80 mA low-drop regulator MIC5203-3.3BM4TS SOT143 1.17 0.881 u-Cap 80 mA low-drop regulator MIC5203-5.0BM4TS SOT143 1.17 0.881 Micrel Power suppy supervisor MIC2754SBM5TS 2.24 1.681 ADP3607AR Adjustable 50mA SO-8 0.00 0.002 HCPL-0601 4.64 3.485 BAV70W $ 0.037 3000 0.45 0.301 BAT54W Schottky barrier diode SOT-323 0.00 0.001 74HC picogate 74HC1G66GW Philips 0.41 0.311 8 pos SMD NHDS-08T 3.50 2.631 2mm pin headers 0.61 0.461 CSTCC8.00MG Murata 0.92 0.695 100nF 10% cer 0805 25V Murata X7R 0.18 0.138 0.47 uF 25VY5V cer 0805 AVX 08053G474ATEA 1.12 0.842 BERGSTAK 61082-101000 price 21.01.02 2.228 EUR1) 9.92 6.551 Quartz 32kHz SMD 1.33 1.00

PCB CHF ? 9.00 6.75

CAN node parts price in CHF= 66.99 52.21 Estimated price components

Manufacturing in GVA spring 2000 ? 22.00 15.00

88.99 67.21

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS Costing (Side B and Total)Costing (Side B and Total)

Side B 64 ch ADC Price (CHF) Price (CHF)Quant Component Mod 500pc Mod 3000pc

1 CS5523-AS 9.30 6.98 Supplied by CERN radiation 16 MAX4582CEE 16pin QSOP 18.72 14.041 AD680JR Ref 2.5V SOIC SO-8 3.29 2.471 MAX871EUK Switched capacitor voltage inverter SOT23-5 3.80 2.851 u-Cap 80 mA low-drop regulator MIC5203-5.0BM4TS SOT143 1.22 0.911 NC74S14M5 Package MO-178 1.6mm 0.80 0.601 74HC74ADT TSSOP Case 948G-01 0.45 0.344 NC7SZ00P5 Package SC-88A SOT353 1.26 0.953 HCPL-0731 13.51 10.133 BAT54W Schottky barrier diode SOT-323 0.80 0.604 100nF 10% cer 0805 X7R 50V 08055C104KATDA 0.14 0.117 0.47 uF 25VY5V cer 0805 AVX 08053G474ATEA 0.98 0.74

12 10k SMD 0805 0.12 0.091 Quartz 32kHz SMD 1.33 1.00

64 ch ADC part price in CHF= 55.72 41.79Manufacturing in GVA spring 2000 ? 29.00 23.00

84.72 64.79

DIGITAL + CAN PART 66.99 52.2164 CH ADC 55.72 41.79

Total cost of components (estimated ) 122.71 94.00Manufacturing overhead 2.0 245.42 188.00 Commercial price ?????

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

Price difference between 2pc 100 pol and 2pc set of BergStak connectors (2 male and 2 females)Price from PRECIMATION 21.1 2002 x 2Male BergStac 2x50 pol 61082-101000 6.55Female BergStac 2x50 pol 61083-101000 5.82 12.36Male BergStac 2 x 20 pol 61082-041000 4.58Female BergStac 2 x 20 pol 61083-041000 4.07 8.66

Difference 3.71

Costing (BergStak connectors)

• Price comparison for the BergStak connectors

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• Batch production– Plan just one or two batches

• Expected number produced in first batch, if more required, a second batch produced

– Plan many, smaller batches• As more required, a new batch is produced

• First batch - earliest available start 2003

• 4 main sensitive components bought in one go as homogeneous lots

Production StrategyProduction Strategy

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• 25 ELMBs manufactured– components will be randomly selected from the

purchased homogeneous lots

• Tests completed at Louvain-la-Neuve

Radiation QualificationRadiation Qualification

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• Main testing done at production site– A number of modules on one bus– Programmed simultaneously– Tested all at once

• Acceptance testing completed at CERN– Statistical testing only– Only verification required as full testing had

been completed at production site

TestingTesting

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• Current numbers of available ELMBs low

• May require pre-production series– non-radiation qualified– for use in USA15 only

Acceptance TestingAcceptance Testing

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• Component pre-selection completed using LMB in radiation tests

• Design has been proven in test beams

• Full radiation pre-qualification done

• Further testing in “realistic” radiation environment (TCC2)

Quality AssuranceQuality Assurance

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• “Guarantee” for an initially working module

• Modules are seen as consumables– Failure will be investigated– Recurring problems will be repaired

• For cost effectiveness

Procedure for FailureProcedure for Failure

ELMB Product Readiness Review - ELMB Production, March 2002, J.Cook

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ATLASDCS

• Before tendering– Pledges necessary from users

• Numbers required

• Commitment to purchase

• Time-scale– How many by when?

ConclusionConclusion