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Elmet Technologies

Dow CYCLOTENE™ 4026-46 Advanced Electronic Resins (PhotoBisbenzocyclobutene BCB)
Categories: Polymer
Material Notes: CYCLOTENE™ 4026-46 advanced electronic resin is I-line-, G-line-, and broad band-sensitive photopolymer that has been developed for use as a dielectric in thin film microelectronic applications.

Information provided by Dow
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Physical PropertiesMetricEnglishComments
Viscosity Measure 1100 cSt1100 cSt
Thickness 7.00 - 14.0 microns0.276 - 0.551 mil
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 78.0 - 96.0 MPa11300 - 13900 psi
Elongation at Break 5.5 - 10.5 %5.5 - 10.5 %
Tensile Modulus 2.70 - 3.10 GPa392 - 450 ksi
Poissons Ratio 0.340.34
Shear Modulus 1.01 - 1.16 GPa146 - 168 ksiCalculated
 
Electrical PropertiesMetricEnglishComments
Volume Resistivity 1.00e+19 ohm-cm1.00e+19 ohm-cm
Dielectric Constant 2.65
@Frequency 1.00e+9 - 2.00e+10 Hz		2.65
@Frequency 1.00e+9 - 2.00e+10 Hz
Dielectric Strength 530 kV/mm13500 kV/in
Dissipation Factor 0.000800.00080
 
Thermal PropertiesMetricEnglishComments
CTE, linear 42.0 µm/m-°C
@Temperature 20.0 °C		23.3 µin/in-°F
@Temperature 68.0 °F
Thermal Conductivity 0.290 W/m-K2.01 BTU-in/hr-ft²-°F
Glass Transition Temp, Tg >= 350 °C>= 662 °F
Decomposition Temperature 350 °C662 °F1.7% weight loss per hour
 
Descriptive Properties
Leakage Current A/cm²0.00000000047at 1.0 MV/cm2
Stress on Si MPa, Min26 - 30

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