(PoF) and Environmental Stress Screening - DfR Solutions
(PoF) and Environmental Stress Screening - DfR Solutions
(PoF) and Environmental Stress Screening - DfR Solutions
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How to use <strong>PoF</strong> in ESS?• Calculation of relative screening level• Calculation of life used / remaining life (ProcedureA4 in MIL-HDBK-344A) Thermo-mechanical fatigue of solder T 2 Mechanical fatigue of copper G 6.4Electromigration of aluminum exp(0.7eV/kT)• Note: To be most effective, „life used‟ should becalculated from the product design life, not just themission profile5110 Roanoke Place, Suite 101, College Park, Maryl<strong>and</strong> 20740Phone (301) 474-0607 Fax (240) 757-0053© 2004 - 2007 2009 www.<strong>DfR</strong><strong>Solutions</strong>.com41