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Design Technology >
PCB Material
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PCB Material
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Material
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High Temp. Epoxy
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Polyimide
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Getek
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Cyanate Ester
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Dielectric Constant (Er) @1.0 MHz
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4.5-4.7
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3.90
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4.30
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3.90
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3.90
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3.48 @ 1GHz
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Dielectric Constant (Er) @10 GHz
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4.3-4.5
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3.90
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4.10
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3.70
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3.80
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3.48 @ 20GHz
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Dissipation Factor @1 MHz
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0.0190
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0.0100
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0.0100
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0.0100
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0.0100
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0.0031 @ 1GHz
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Dissipation Factor @10 GHz
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0.0190
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0.0100
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0.0120
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0.0120
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0.0120
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0.0037 @ 20GHz
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Glass Transition Temp. (Tg)
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135º C
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180º C
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260º C
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180º C
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230º C
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> 280º C
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Water Absorption
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0.80%
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0.80%
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0.33%
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0.12%
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0.12%
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0.04%
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Dimensional Stability(mils/Inch)
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-
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-
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-
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< 0.5
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-
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< 0.3
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Normalized Cost
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1x
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1.1x
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1.35x
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1.5x
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2x
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3x
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