公开(公告)号：US20210134505A1

公开(公告)日：2021-05-06

申请号：US16853487

申请日：2020-04-20

Applicant: Ralec Electronic Corporation

Inventor： Tim Wang ,  Peter Chen

IPC: H01F17/00

Abstract: A thin-film inductor includes an electrically conductive structure, an inductance-enhancing structure and two terminal electrodes. The electrically conductive structure has a coil pattern, and includes an insulating base plate having via extending therethrough, upper and lower coils formed on two opposite surfaces of the insulating base plate, and a conducting member disposed in and fills the via to electrically connect the upper and lower coils. The inductance-enhancing structure covers the electrically conductive structure and fills a space defined by the electrically conductive structure to expose an electrode contact region of the lower coil. The terminal electrodes are disposed on the electrode contact region.