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Hybrid & Module Testing Status

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Presentation on theme: "Hybrid & Module Testing Status"— Presentation transcript:

1 Hybrid & Module Testing Status
Week of 4/11-4/15

2 UCSB Hybrid Testing Results
Failed Hybrids 3 with Shorts in PA Repairable 1 Smashed APV-PA Bonds 1 Major Scratch in PA 2 Failed Initial Inspection 1 Broken Ceramic 1 Bad Bond Feet 1 Weak Wire Bonds 2 with unknown failure Pass Fail % Pass L12pd 0.00% L34p 319 4 98.76% L56p 347 5 98.58% R5N 65 2 97.01% R5S 47 100.00% R6 87 1 98.86% R7 Total 865 12 98.63%

3 FNAL Hybrid Testing Results
Failed Hybrids 5 with Shorts in PA Repairable 7 Noisy channels-usually entire chip or chips Still under study 1 with too many open and noisy channels Hybrid ID Pass Fail %Pass R2S R2D R5S R5D R6U L56p 230 3 98.7% L34p&L12pu 256 11 95.9% L12pd L12su L12sd Total 486 14 97.2%

4 Hybrid Testing Outstanding Issues
Tests take minutes for 4 hybrids Meets current need (rate of <28 hybrids a day) New code available which will reduce testing times by minutes Gives needed contingency for high rate production Code under validation

5 UCSB ARCS Testing Results
Failed Modules 1 with >2% Bad Channels Debris on sensor 1 Bad DCU 1 HV Shorted to CF Frame 2 with >20 mA Bias Current 1 leaky pinhole 1 scratched sensor 1 of the 5 failures was caused during module production and testing. 3 failures due to problems in silicon prior to assembly 1 failure is a hybrid or DCU failure A B F % A or B L12pu 0.00% L12pd L12su L12sd L34p 85 1 2 97.73% L56p 237 99.17% R5N 32 97.06% R5S R6 24 100.00% R7 Total 378 3 5 98.70%

6 UCSB ARCS Testing Issues
Need to confirm cuts on TEC modules Getting some confusion between 1SO/2SO Have not produced TEC R6 modules in a year Working on validation of ARCS 8.0 Currently using ARCS 7.2bugfix

7 UCSB Module Quality On the 378 modules using HPK modules:
18 pinholes (plucked to be opens) 47 shorts (plucked to be opens) 45 noisy channels 86 opens Percentage of bad channels: <.1%

8 FNAL ARCS Testing Status
Failed Modules 1 – no readout 1 Bad DCU No failure attributable to module production Both failures appear to be hybrid or chip related A B F % A or B L12pu 0.00% L12pd L12su L12sd L34p 6 100.00% L56p 204 1 2 99.02% Total 210 99.51%

9 207 of 210 passed with grade A, 1 - with grade B.
FNAL, (204) HPK TOB modules ARCS tested (March 21 – April 22, 2005) (HPK, L56p, 204 total), (HPK, L34p, 6 total) ARCSed. 207 of 210 passed with grade A, 1 - with grade B. Total amount of counted “known bad channels” is 19. Given that we have less than 0.1 bad channels per module.

10 UCSB LT Testing Results
We are seeing a low level problem with low noise/mis-initialization of modules Found that there is usually a resistive connection between extender and backplane Reseating extender always fixes problem Will need to watch to see if problem is worsening with time Pass Fail % Pass L12pu 0.00% L12pd L12su L12sd L34p 84 100.00% L56p 223 R5N 34 R5S R6 15 R7 Total 356

11 FNAL LT Testing Issues Modules – 7990 were tested during April 5 – April 18 period. Modules passed LT testing successfully with grade A. Rest of all runs have problems with cold and last records. Data cannot be processed: afs backup, xml uploading. 80+ modules need to be retested. Problem is being investigated with help from P. Gartung

12 FNAL LT Testing Issues Details: Problem occurs
lt scenario: ChangeCool dummy TempReached dummy dummy -10 HardReset analoff analoff CheckEnv dummy dummy CheckEnv dummy dummy HardReset pllinit pllinit PedRun i2cpedpeak pedpeak CalProfRun i2ccalpeak calpeak Problem occurs sometime between these lines. While switching the APV modes, FEC Server generates I2C errors for all modules.

13 FNAL LT Testing Issues Current situation:
Rolled back to original 12hrs scenario (without HardResets before each mode switching ), testing 6 modules per run, performed 3 runs: 1 failed, 2 last passed. Patrick suggested to remove HardResets at all. Wim Beaumont is informed, received several suggestions... First records for all tested modules is OK, no difference with ARCS data.

14 FNAL LT Testing Status Pass Fail % Pass L12pu 0.00% L12pd 12 100.00%
0.00% L12pd 12 100.00% L12su L12sd L34p 95 1 98.95% L56p 71 Total 168 99.40%

15 Overall US Production Quality
1351 (98%) of the 1377 hybrids processed pass specification. Xxx of yyyy (ZZ%) of module pass mechanical specifications. 592 (99%) of the 599 modules ARCS tested are grade A or B. Only 1 failure is directly related to module production. 524 (99.8%) of the 525 modules LT tested are grade A or B.

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