Burn-in & Test Socket Workshop - BiTS Workshop

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Ball Damage 1.27mm Pitch Contactor witness mark Contactor witness mark • 1.27mm eutectic PBGA • Pinch style contact • 140 hrs @ 140C • 1.27mm Pb Free PBGA • Pinch style contact • 120 hrs @ 140C Testing Lead Free Area Array Packages BiTS 2003 21
PBGA Contactor Cleaning • Surface mount pogo socket – Two 1089 I/O Pb free BGA devices to test on – Four 1089 I/O Pb free BGA devices to cycle on – Test temperature: 120C – Cleaning method: soft brass brush + air blow off – 10% improvement at 300k ohms 2 1.5 1 0.5 Average Resistance Before and After Clean 0k 50k 100k 150k 200k 300k cycles PbFree device 1 before clean PbFree device 1 after clean PbFree device 2 before clean PbFree device 2 after clean Testing Lead Free Area Array Packages BiTS 2003 22
Page 1 and 2: Burn-in & Test Socket Workshop Marc
Page 3 and 4: Burn-in & Test Socket Workshop Sess
Page 5 and 6: Objectives • Determine impact of
Page 7 and 8: Pb free - Background • Why Pb fre
Page 9 and 10: Typical Test Setup • Pneumatic co
Page 11 and 12: PBGA Test Socket Resistance at Cycl
Page 13 and 14: CBGA Test Socket Resistance • Dai
Page 15 and 16: CBGA Test Damage 90/10 Leadfree Wit
Page 17 and 18: CCGA Contact Resistance Average Res
Page 19 and 20: PBGA Contactor Resistance at Burnin
Page 21 and 22: Ball Damage 1.00mm Pitch Contactor
Page 23: PBGA Contactor Resistance at Burnin
Page 27 and 28: Pb Free Early Learning Summary Con
Page 29 and 30: Up Front Concerns with Lead-Free So
Page 31 and 32: Lead-free Alloy Wish List (Short Li
Page 33 and 34: Undesirable Effects of Other Elemen
Page 35 and 36: Test Objective • Metallurgical Pl
Page 37 and 38: Metallurgical Plating Test • Test
Page 39 and 40: 100 % SN Plated Lead SEM micrograph
Page 41 and 42: Internal Device Resistance Baseline
Page 43 and 44: 90% Sn 10%Pb Tested at Plus 125º C
Page 45 and 46: Resistance in Ohms 0.02 0.018 0.016
Page 47 and 48: 100% Sn Lead Plating Tested at Plus
Page 49 and 50: Resistance in Ohms 0.05 0.045 0.04
Page 51 and 52: 90% Sn 10% Pb Lead Plating Tested a
Page 53 and 54: Resistenance in Ohms 0.035 0.03 0.0
Page 55 and 56: 90% Sn 10%Pb Tested at Plus 125º C
Page 57 and 58: Resistance in Ohmsa 0.03 0.025 0.02
Page 59 and 60: Conclusion • Changes made to cont
Page 61 and 62: The Effects of No Lead Solder Balls
Page 63 and 64: What we asked… Experimental Objec
Page 65 and 66: Evaluation Criteria Overview of Exp
Page 67 and 68: Overview of Experiment Test Methods
Page 69 and 70: Stage 2 Objective Experimental Deta
Page 71 and 72: Experimental Detail / Analysis Stag
Page 73 and 74: Experimental Detail / Analysis Stag
Page 75 and 76:
Experimental Detail / Analysis Stag
Page 77 and 78:
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
• General Observations Summary of
Page 87 and 88:
Conclusions • Overall performance
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Burn-in & Test Socket Workshop - BiTS Workshop

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