www.niccomp.com | Technical Support: [email protected] Resistance to PCB Flexure Test MLCC – Multilayer Ceramic Chip Capacitors NMC Series (Standard Terminal) comparison to NMC-P series (Polymer Soft Terminal) PCB Deflection: 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm Test Samples: n= 10 pieces • Monitor 1KHz Capacitance Value / Failure Criteria = ∆C of ≥±12.5% Case Size (Cap / Voltage) 0805 (0.1uF / 100V) PCB Deflection 1.0 mm 1.5 mm 2.0 mm 3.0 mm 4.0 mm 5.0 mm 6.0 mm 7.0 mm 8.0 mm 9.0 mm 10.0 mm Percentage Failures NMC Series NMC-P Series (Standard Terminal) PN: NMC0805X7R104K100 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 10% 30% 80% 90% 100% 100% 100% 100% PN: NMC1206X7R103K500 1206 (0.01uF / 500V) 1.0 mm 1.5 mm 2.0 mm 3.0 mm 4.0 mm 5.0 mm 6.0 mm 7.0 mm 8.0 mm 9.0 mm 10.0 mm 0 / 10 (No Failures) 0 / 10 (No Failures) 20% 80% 100% 100% 100% 100% 100% 100% 100% PN: NMC1210X7R105K100 1210 (1.0uF /100V) 1.0 mm 1.5 mm 2.0 mm 3.0 mm 4.0 mm 5.0 mm 6.0 mm 7.0 mm 8.0 mm 9.0 mm 10.0 mm 0 0 0 0 0 0 0 / / / / / / / 10 10 10 10 10 10 10 (No (No (No (No (No (No (No Failures) Failures) Failures) Failures) Failures) Failures) Failures) 10% 50% 100% 100% ISO 9001:2008 (Polymer Soft Terminal) PN: NMC-P0805X7R104K100 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) PN: NMC-P1206X7R103K500 0 0 0 0 0 0 0 0 0 0 0 / / / / / / / / / / / 10 10 10 10 10 10 10 10 10 10 10 0 0 0 0 0 0 0 0 0 0 0 / / / / / / / / / / / 10 10 10 10 10 10 10 10 10 10 10 (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) (No Failures) PN: NMC-P1210X7R105K100 REGISTERED (No (No (No (No (No (No (No (No (No (No (No Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Resistance to PCB Flexure Test MLCC – Multilayer Ceramic Chip Capacitors NMC Series (Standard Terminal) comparison to NMC-P series (Polymer Soft Terminal) PCB Deflection: 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm Test Samples: n= 10 pieces • Monitor 1KHz Capacitance Value / Failure Criteria = ∆C of ≥±12.5% Case Size (Cap / Voltage) 2220 (2.2uF / 25V) Percentage Failures NMC Series NMC-P Series PCB Deflection (Standard Terminal) PN: NMC2220X7R225K25 1.0 mm 1.5 mm 2.0 mm 3.0 mm 4.0 mm 5.0 mm 6.0 mm 7.0 mm 8.0 mm 9.0 mm 10.0 mm 0 / 10 (No Failures) 0 / 10 (No Failures) 20% 60% 90% 100% 100% 100% 100% 100% 100% (Polymer Soft Terminal) PN: NMC-P1206X7R225K25 0 0 0 0 0 0 0 0 0 0 0 / / / / / / / / / / / 10 10 10 10 10 10 10 10 10 10 10 (No (No (No (No (No (No (No (No (No (No (No Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Failures) Cross-Sectional Comparison • After de-mounting from test PCB, performed cross-sectional comparison to allow inspection of internal structure (Standard Terminal) PN: NMC0805X7R104K100 Crack (Polymer Soft Terminal) PN: NMC‐P0805X7R104K100 Base (Cu) Flexible layer (Polymer) Barrier (Ni) Solder Alloy Base (Cu) Barrier (Ni) Solder Alloy Summary: • All of the standard terminal (NMC series) samples exhibited failure under PCB flexure testing • Failure mode defined as capacitance decrease ≥12.5% & low insulation resistance • Cracking in ceramic micro-structure (as shown in above cross sectional analysis) is cause of the failure • None of the NMC-P series (Polymer Soft Terminal) exhibited failure • No cracking was observed in NMC-P series (Polymer Soft Terminal) ISO 9001:2008 REGISTERED Polymer Layer – Open Circuit Function Example of polymer layer terminal separation (open circuit) for NMC-P Series (Polymer Soft Terminal) under 10mm PCB deflection PCB Deflection: 1.0 mm, 1.5 mm, 2.0 mm, 3.0 mm, 4.0 mm, 5.0 mm, 6.0 mm, 7.0 mm, 8.0 mm, 9.0 mm, 10.0 mm Test Samples: n= 10 pieces • Monitor 1KHz Capacitance Value / Failure Criteria = ∆C of ≥±12.5% Case Size (Cap / Voltage) 1812 (0.47uF / 250V) PCB Deflection 1.0 mm 1.5 mm 2.0 mm 3.0 mm 4.0 mm 5.0 mm 6.0 mm 7.0 mm 8.0 mm 9.0 mm 10.0 mm Percentage Failures NMC Series NMC-P Series (Standard Terminal) PN: NMC1812X7R474K250 (Polymer Soft Terminal) PN: NMC-P1812X7R474K250 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 10% 40% 70% 80% 90% 100% 100% 100% 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 0 / 10 (No Failures) 2 / 10 (Open Circuit) Cross-Sectional Analysis Cross-Sectional Analysis Magnified View Polymer layer opened under 10mm PCB deflection Component is undamaged Prepared by: TPMG, NIC Components Corp. / [email protected] ISO 9001:2008 REGISTERED