超贊的公司模板白領(lǐng)職場(chǎng)必備(編輯修改稿)
2025-02-02 12:32 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 tch Adjustment 13. Lamp Install 14. Structure inspection 15. Function inspection 16. Aging 17. Life test 18. O/Case Install 19. O/Case Fix 20. Leakage test 21. Nameplate stickup 22. Last Inspection 23. Packing 24. Pack up Part and Function 2 3 4 5 6 7 8 9 10 11 12 1 23 21 19 18 16 13 24 14 15 17 20 22 Appearance Through process mapping we found some procedure has problems 99% 95% 99% 99% 99% 98% 82% 98% 99% 93% 83% 99% 99% 84% 98% 98% 99% 100% s 6 Define Measure Analysis Improve Control Fet self check Latch Adjust D/Frame Latch L/Board Cavity Man Old or new Method Mould aging Total inspection burr Machine Parameter injection Material Gage aging The way PPK= Latch 3 mould is CTQ Oneway ANOVA: latch1, latch2, latch3, latch4 Analysis of Variance Source DF SS MS F P Factor 3 Error 116 Total 119 Individual 95% CIs For Mean Based on Pooled StDev Level N Mean StDev ++++ latch1 30 (*) latch2 30 (*) latch3 30 (*) latch4 30 (*) ++++ Pooled StDev = Latch adjustment improvement Best practice2 Supplier IQC Painting PCB Ass’y OQC Customer 8/19 D M A I C s 6 Define Measure Analysis Improve Control Regression Analysis: time versus latch b, latch bp, latch bl, latch The regression equation is time = + latch b + latch bp + latch bl latch Predictor Coef SE Coef T P Constant latch b latch bl latch bp latch S = RSq = % RSq(adj) = % Regression Analysis: time versus latch bp, latch bl The regression equation is time = + latch bp + latch bl Predictor Coef SE Coef T P Constant latch b latch b S = RSq = % RSq(adj) = % PPK= Pooling Latch adjustment improvement Best practice2 Supplier IQC Painting PCB Ass’y OQC Customer 9/19 D M A I C s 6 Define Measure Analysis Improve Control Past film Hold Put film Put Take off Press film Hold plate Turn around Hang Sec. ‘03 Ppk= ‘02 ChiSq = + + + + + + + + + + + + + + + + + + + + + = DF = 10, PValue = Scratch by Model Analysis ChiSquare Test: Defect2, Total2 Expected counts are printed below observed counts Defect2 Total2 Total 1 9 14783 14792 2 5 14783 14788 3 2 14784 14786 4 62 14784 14846 Total 78 59134 59212 ChiSq = + + + + + + + = DF = 3, PValue = Scratch by Vendor Analysis Best practice2 Supplier IQC Painting PCB Ass’y OQC Customer Door ass’y process improvement 10/19 D M A I C s 6 Define Measure Analysis Improve Control Door ass’y process improvement Ass’y line Door line P/ code S/ guide Ass’y line Door line P/ code S/ guide Add total inspector to check it Vendor package improve Press film Past film Put film
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