qc 8 steps

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1. 主主 :Fusion 穩穩穩穩穩穩 穩穩 :IC-FTF 穩穩 :Fusion 圈 1.穩穩穩穩穩穩─穩穩穩穩穩穩(穩穩穩MTBBF) Tester U tilization im provem ent穩 2.穩穩穩穩穩穩 穩穩穩穩穩穩穩穩 Q uality 穩穩穩穩穩穩 C ost 穩穩穩穩 D elivery 3.穩穩穩穩穩穩穩穩 Technology im provem ent穩 5 2.穩 5 5 6 2 12 11 7 5 0 2 4 6 8 10 12 Average failures/persystem A5xx/catalyst Vista Spea Turbo Fusion Synchro CS VQ Averagefailures/persystem FUSIO N --- FUSIO N --- top failure top failure & & urgent urgent 4 3. 穩 穩穩穩 M TBBF 900hrs 1200hrs hrs /m onth 0 2 4 6 8 10 12 14 16 18 1 2 3 4 5 6 7 8 9 10 11 12 13 m onth P E C H F failu 0 200 400 600 800 1000 1200 1400 1600 MTBB PECH F failures M TB B F target: stable 1200hrs target: failures under 8 pcs/per m onth AVG 2001 2002 9 4.穩穩穩穩 主主主主 D C level 主主 Pin C ard主 主主 Cooler主 主 主主主主 主主主主 主主主主 =>主 主 主 Sensor 主主 Filter/snubber 主主 Cooler主 主 主主主主主主 主主主 Functional/open/short Fail 主主主主 D C pow er主主主主 DC output! Relay 主 穩穩穩穩 主主主 主主主主 主主主主主主主 主 Functionalfail. 17 5.主主主主 120 77 25 16 12 0 50 100 150 865-7393-03 865-7313-04 876-5100-01 876-5083-02 875-2749-01 PC BA ,PE CH F PCBA,FAM NT PW R SPLY ,2V ,800A P /S,5V@ 600A ,208 VA C PCA,SM SA NALOG HR A round A round 48% 48% of of totalfailures totalfailures 8 6.穩穩穩穩 Fusion Fusion 1. 1.Bad stability ofcooling system . Bad stability ofcooling system . 2. 2.Bad stability ofD igitalDC pow ersupply. Bad stability ofD igitalDC pow ersupply. 3. 3.Low Low reliability ofrelay on pin card . reliability ofrelay on pin card . Top 3 problem s! Cooler Coolerstability problem stability problem C ooler could notcoolthe w ater evvectively Sensor is bad ! Filter/snubber be blocked ! L eak ! To m uch air ! Thissensorm easure the flow rate of cooling w aterinside the cooler. Filter,itis filtering the w aterand rem ove som e ofits im purities. Snubber: Itprotectthe sensor. Leak :itdam age Pin card, FARM N T board and T/H backplane Too m uch airin the cooling w ater,w ould decrease itseffect! Five problem s analysis Five problem s analysis 主主主主主主 主主主主主主 Seneor Filter Snubber Leak A irin the water 2001主 主 主 17 117 205 67 27 17 117 205 67 27 0 50 100 150 200 250 主主主 Seneor Filter Snubber 主主 主主主主 主主 2001主主主主 C oole r pro b le m Seneor 4% F ilte r 27% Snubber 48% L eak 15% A ir in th e w ater 6% > > Corrosion on Cold plate and Corrosion on Cold plate and connector . connector . > > M CM leak . M CM leak . W hatw as the cause ofthe W hatw as the cause ofthe leak ? leak ? Soluction Soluction: > Replace them w ith Vendor ASAP! Replace them w ith Vendor ASAP! 7. 主主主主 How to find the solutions ofcooler problem ? How to find the solutions ofcooler problem ? 主 ColdPlate主 主 Coolant Advantage Defect Distill water andbleach Prevent Biological growth! Bleach cause corrosion of ColdPlate , and get impurites ! Distill water only Nocorrosion and less impurities! Can not prevent Biological growth! Pure water (nonion) Less impurities ! Can not prevent Biological growth, acidic water will corrode coldplate! Pure water (nonion)andbleachPrevent Biological growth,less impurities ! Bleach andacidic water will corrode coldplate!! 主主主主 主主主主 ColdPlate ColdPlate主主主 主主主 主主 主主 主主主 主主主 A ccording to LT X stand service m anual,usedistillwaterand bleach could preventthe Biologicalgrow th . W hatw e should im prove is this Relay problem on digitalpin card Relay problem on digitalpin card R ESU LT P IN A C TU A L TA R G ET LO W ER U PPER ======== ==== ============= ======= ===== ========= 7 655.17377m 750m 0 2.000000 8 622.421988m 750m 0 2.000000 **FA IL * * 9 2.600212 750m 0 2.000000 10 644.60327m 750m 0 2.000000 The The reliability ofrelay is bad ,it alw ays m ake reliability ofrelay is bad ,it alw ays m ake som e functional/open-short som e functional/open-shortproblem problem . Improvem ent: Improvem ent:Replcae Replcae the relay the relay . O ther action :W hen do the PM ,run the relay O ther action :W hen do the PM ,run the relay checkertoo! checkertoo! W hy do w e w antto im prove this ? W hy do w e w antto im prove this ? W hatkind ofCold Plate is good fordistill W hatkind ofCold Plate is good fordistill w aterand bleach ? w aterand bleach ? Material of ColdPlate The result after it use distill water andbleach Aluminum Be easy tocorrode andmake impurities ! Aluminum be electroplated Better thanpureAluminum. Plastics It is hardtocorrode andless impurities. ColdPlate Snubber主 主 Snubber 主 主主 (主) Filter主 主主(主 ) 主主 主主 Type1 2 2 1 G type 2.5 2 2 E type 3 2 2 Type1 3 3.5 3 主主主主主主主 G type 3 3.5 3 E type 3 3.5 3 Type1 3 6 4 G type 3 6 4 E type 4 6 5 27 8.主主主主 主主主主主主 17 1.4 117 9.75 205 17 67 5.6 27 2.25 0 50 100 150 200 250 穩穩 S ensor Filter S nubber 主主主主 2001穩 穩 穩 穩 穩 2001主 主 主 主 33主主主主主 1.4 1.33 9.7 5 7.33 17 1 1 .33 5.6 1.8 7 2 .25 2 0 2 4 6 8 10 12 14 16 18 Sensor Filter S nubber 2001,主 33 2002,Q 1 ,33 主2001主主主主主主主主主主. 主主主主. 主主主主主主=主主 主主 28 主 主 主 主 PM主 主 M CM 主主主,主主主主. ColdPlate 主主主主主主主主 Filter 主主主主主主主,主主主主,主主主主2~3主主主主主主主主主主25PSI. Snubber 主主主! Relay checker 主主主! 主主主主 主主主主主主主 M CM 主 主 主 主 主 ,主 主 主 主 主 主 MCM. C old Plate 主主主主主主 Filter 主主主主主,主主主主,主主主主,主主主25PSI主主主. Snubber 主主主主.主主主主主主主主主主. Relay checker 主主PM主主主主主. A round 6 system s A round 6 system s doneby end of doneby end of April2002 April2002 29 9. 主主主 穩穩穩穩穩 穩穩穩穩穩 LTX LTX穩 穩穩穩穩穩穩穩穩穩 穩穩穩穩穩穩穩穩穩, 穩穩穩穩 穩穩穩穩. 穩穩 穩穩 穩穩穩穩穩穩穩穩穩 穩穩穩穩穩穩穩穩穩 , , 穩穩穩穩穩 穩穩穩穩穩 LTX LTX 穩 PSK PSK 穩穩 穩穩 穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩 穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩穩 穩. 穩穩穩穩穩穩穩穩穩穩 穩穩穩穩穩穩穩穩穩穩 , , 穩穩穩穩穩穩穩穩 穩穩穩穩穩穩穩穩 穩穩穩穩穩穩 穩穩穩穩穩穩! 37 10.穩穩穩穩穩 A P D C

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  • 1. 1.: Fusion : IC-FTF : Fusion A P D C