This material uses special resins that provide improvement in mechanical properties such as X, Y and Z CTE. Material is especially good for performance in high frequencies.
Loss Tangent = .01 (good) (excellent in analog circuits up to 2.0 ghz and digital circuits above 3.0 ghz) (stable with temperature variations).
Er = 4.0 to 4.5 (at 1.0mhz) (specific Er is dependent on glass -to-resin- Er is virtually constant from 1.0mhz to 3.0ghz).
CTEr = + 220 ppm per degrees C (high). Tg is 250 degrees C.
Electro-Deposited Copper only. (helps in peel strength and delamination but somewhat limits etch width tolerance due to undercutting).
Layer-to-layer thickness control = + / - .002
Excellent for multi-layer construction.
Fabrication for Cirexx Corporation = above normal with increased cost
Company Details
Cirexx International offers a complete line of printed circuit board design, PCB fabrication, and PCB assembly services. We have over 20 years of manufacturing complex PCB designs using rigid, flexible, hybrid, and specialty materials.
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