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PCB-Oct2017

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Aging effect for Dk/ Df Dielectric constant (Dk) Time (hrs) Measurement method:Balanced type circular disk resonance method Aging Temperature:125℃ (without humidity control) Measurement frequency:18GHz 0 200 400 600 800 1000 1200 Time (hrs) 0 200 400 600 800 10001200 3.0 3.2 3.4 3.6 3.8 Dissipation factor (Df) 0.002 0.003 0.004 0.005 0.006 R-5575 R-5575 Other company Other company

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