Manufacturing And Reliability Challenges With QFN - SMTA

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Knowledge and Education(Website)• Let your staff learnall day / every dayE-LEARNING• Scholarly articles• Technical white papers• Case studies• <strong>Reliability</strong> calculators• Online presentationsUpdated Website (Launched Aug ’08)© 2004 - 20096
<strong>QFN</strong> as a ‘Next Generation’Technology• What is ‘Next Generation’ Technology?Materials or designs currentlybeing used, but not widely adopted(especially among hi-rel manufacturers)• Carbon nanotubes are not‘Next Generation’Not used in electronic applications• Ball grid array is not‘Next Generation’Widely adopted© 2004 - 20097
Page 4 and 5: Who Uses DfR?Military / Avionics /
Page 8 and 9: Introduction (cont.)• Why is know
Page 10 and 11: Component Packaging• Most of us h
Page 12 and 13: 2 nd Level Interconnect Reliability
Page 14 and 15: Solder Wearout (cont.)• Eliminati
Page 17 and 18: Industry Response to SJ Wearout?•
Page 19 and 20: Quad Flat Pack No-Lead (QFN)© 2004
Page 21 and 22: QFN (cont.)• Availability 1 x 2 m
Page 24 and 25: Advantages: Thermal Performance•
Page 26 and 27: QFN: Why Not?• QFN is a ‘next g
Page 28 and 29: Bond Pads (cont.)• Extend bond pa
Page 30 and 31: Singulated operationTitle: Reliabil
Page 32 and 33: Title: Reliability study of surface
Page 34 and 35: Manufacturability (Rework)• Can b
Page 36 and 37: Manufacturability (cont.)• QFN so
Page 38 and 39: Reliability (Thermal Cycling)• Or
Page 40 and 41: Reliability (Bend Cycling)• Low d
Page 42 and 43: Dendritic Growth (cont.)• The ele
Page 44: QFN: Risk Mitigation• Assess manu

Manufacturing And Reliability Challenges With QFN - SMTA

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