Burn-in & Test Socket Workshop - BiTS Workshop

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Test Plunge Fixture and Temperature Chamber 4 Wire Kelvin resistance measurement instrument used: Keithley Multimeter Switch, Model 2750
90% Sn 10%Pb Tested at Plus 125º C. Standard 2mm Contact Pins Resistance in Ohms 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 1 4 7 10 7040 Durometer Elastomer Pin 1 Pin 3 Pin 5 Pin 7 Pin 8 Pin 10 Pin 12 Pin 14 13 16 19 22 25 28 31 34 Number of Devices Tested 37 40 43 46 49 •Min 0.00862 •Max 0.01751 •Range 0.00889 •Median 0.01418 •Mean 0.01377 •Sample Standard Deviation 0.00168 •Average Deviation From Mean 0.00137 •Contact pin resistance spread from pin to pin 0.009 Ohms •Spread approximately 50% of the mean
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 and 24: PBGA Contactor Resistance at Burnin
Page 25 and 26: PBGA Contactor Cleaning • Surface
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: Internal Device Resistance Baseline
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 85 and 86: • General Observations Summary of
Page 87 and 88: Conclusions • Overall performance

Burn-in & Test Socket Workshop - BiTS Workshop

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