six sigma
Malansari23
faeacs1091616.pptxFAEACS1091616
FADEL ELAIW
EBRAHIM ALDOUSARI
THE TFT-LCD INDUSTRY – CASE STUDY
COMPANY PROFILE
Chi Mei Corporation
Founded in JAN, 11, 1960.
Headquarters: Taiwan.
Products: Plastic , Photo-electronics and Food.
DRIVERS FOR CHANGE
Seal defects
Liquid leakage
LCD panel disposed
Financial loss and pollution
During manufacturing process
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Manufacturing Process
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DEFINE
Two types of defects:-
Non-controllable defects due to upstream processes such as
Array factory and CF (color filter) factory
Controllable defects due to seal open such as :
Cell NG Bubbles
Seal scrap
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MEASURE
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MEASURE CONTINUED
MEASURE CONTINUED
ANALYZE
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IMPROVE
CONTROL
Routinely measure the performance of the process.
Establish standard measure to maintain the performance.
Prevent the problem from reverting.
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SIX SIGMA TOOLS
Prioritization matrix
Cause and Effect diagram
Histogram
Regression Analysis
FEMA
Gage R&R
KPIV AND KPOV
KPIV:
Variation in initial speed.
Variation in accelerate or decelerate step.
Variation in corner speed.
Variation in corner accelerate or decelerate.
Variation in the main seal dispense gap.
Variation in the main seal dispense speed.
Variation in the main seal dispense pressure.
KPOV:
Reducing the seal open defect rate by 70 %.
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RESULTS
The financial savings are estimated nearly $1,500,000 annually.
After closing the project in four month
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LESSON LEARNED
Using all of the six sigma tools isn’t mandatory to achieve the best results.
It will be easy to solve the Issue at hand if the problem is well defined.
Using the DMAIC process steps is a necessity to achieve a six sigma project successfully.
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QUESTIONS
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Reference
http://crawl.prod.proquest.com.s3.amazonaws.com/fpcache/c0bc0093d067396f95a58d8a003a8736.pdf?AWSAccessKeyId=AKIAJF7V7KNV2KKY2NUQ&Expires=1474924354&Signature=KvdVUho5U%2FH06Upsio8K5DFg9xA%3D
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