Resin-molded unit including an electronic circuit component covered by a protective magnetic film

摘要

A resin-molded unit (1) includes a semiconductor bear chip (2) arranged inside and sealed in an epoxy resin mold (3). The resin-molded unit is entirely covered with a magnetic loss film (5) as a high-frequency current suppressor. It is preferable that the magnetic loss film is made of a granular magnetic material. A plurality of lead frames (4) may be extended from the semiconductor bear chip to the outside through the epoxy resin mold.