Formable Shielding Film Suits In-Mold Decorating.A formable film that provides EMI (ElectroMagnetic Interference) An electrical disturbance in a system due to natural phenomena, low-frequency waves from electromechanical devices or high-frequency waves (RFI) from chips and other electronic devices. Allowable limits are governed by the FCC. shielding is a new extension of in-mold decorating (IMD IMD - intermodulation distortion ) technology from the GE Structured Products Div. of GE Plastics, Pittsfield, Mass. IMD is an alternative to using conductive additives or applying surface treatments to a plastic electronics housing after molding. The new Formable Shielding Film (FSF FSF - Free Software Foundation ) system, designed by GE and Acheson Industries, Port Huron, Mich., involves screen printing a new conductive ink onto a film in a specially designed dot-matrix pattern. The matrix allows for good formability (up to 40%) without loss of conductivity. The FSF is first preformed and then placed in an injection mold to be over-molded so that it becomes embedded in the housing. GE offers FSF as a Lexan polycarbonate A category of plastic materials used to make a myriad of products, including CDs and CD-ROMs. film or Valox PBT/PC film. They offer UL 94V-0 ratings, heat stability, and dielectric strength. |
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