PREPARATION AND ELECTROMAGNETIC PROPERTIES OF MAGNETIC PARTICLES EMBEDDED COMPOSITE FILMS FOR NEAR-FIELD ELECTROMAGNETIC NOISE SUPPRESSION

摘要

In high-frequency operating digital electronic components, system in package (SiP), radio frequency identification (RFID), the near-field electromagnetic (EM) nosie as well as the far-field EM noise by interference between the component and signal source is the critical problem. In order to avoid the EM interference coupling between signal lines and to improve the signal intergrity of the electronic devices at high-frequency region, the conducting noise should be reduced or removed on signal line. Loss generation by magnetic resonance has been utilized to suppress only the EM noise and signal interference. The EM noise suppression can be performed more effectively by the absorption mechanism using the magnetic loss than by simple shielding.