Dielectric Constant and Dissipation Factor
Another attribute of ULTEMTM film is the low dielectric constant and dissipation factor. Although low or high absolute values of the dielectric constant may be desirable depending on the application, it is more important that the values remain stable. The dielectric constant and dissipation factor for ULTEMTM films were measured at GE Global Research Center. The films were tested and compared to commercially available industry standard benchmark materials. Dielectric performance was measured on films that were fully saturated with moisture and completely dried. Testing was performed at high frequency, and versus standard testing at 1 MHz.