Patent ID: 11955438
Assignee: LAIRD TECHNOLOGIES, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 7:
8. A thermally-conductive electromagnetic interference (EMI) absorber comprising a matrix and at least one functional filler in the matrix, wherein:
the thermally-conductive EMI absorber has a thermal conductivity greater than 6 Watts per meter per Kelvin (W/mK);
the thermally-conductive EMI absorber has an attenuation greater than 15 decibels per centimeter (dB/cm) at a frequency of 10 gigahertz (GHz) or higher;
the thermally-conductive EMI absorber has a thermal conductivity of at least 11.5 W/mK;
the thermally-conductive EMI absorber has a hardness of about 58 Shore 00 or less at three seconds and a hardness of about 37 Shore 00 or less at thirty seconds;
the thermally-conductive EMI absorber has a UL flammability rating of UL V-0;
the thermally-conductive EMI absorber is dielectric and not electrically conductive; and
the thermally-conductive EMI absorber does not include silicone, is substantially entirely silicone free, and/or is usable with no occurrence of silicone migration; and
wherein the thermally-conductive EMI absorber has:
an attenuation of at least 22 dB/cm at a frequency of 10 GHz;
an attenuation of at least 39 dB/cm at a frequency of 20 GHz;
an attenuation of at least 53 dB/cm at a frequency of 28 GHz;
an attenuation of at least 76 dB/cm at a frequency of 39 GHz; and
an attenuation of at least 135 dB/cm at a frequency of 77 GHz.