DuPont™ Kapton® E is a premium performance polyimide film for use as a dielectric substrate for flexible printed circuits and high density interconnects. Kapton® E is the preferred dielectric film for very fine pitch circuitry due to its superior dimensional stability, lay-flat, high modulus, and a coefficient of thermal expansion match to copper. The excellent electrical characteristics and chemical etchability inherent to Kapton® HN and VN films have been maintained in Kapton® E polyimide film. Kapton® E film also has very low moisture absorption and is laser ablatable.
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|
|
|
| Tensile Modulus, kpsi |
800 |
800 |
800 |
| Moisture Absorption |
1.8 |
1.8 |
1.8 |
| CTE, ppm/°C |
16 |
16 |
16 |
| Dimensional Stability |
0.05 |
0.05 |
0.05 |
For a complete listing of E properties, click here .
