Patent ID: 11955271
Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A method of manufacturing a radio frequency (RF) weak magnetic field detection sensor, the method comprising:
forming a first substrate by patterning a portion of a pickup coil on one side surface thereof and engraving a core hole on another side surface thereof to accommodate a ferromagnetic core;
forming a second substrate by patterning another portion of the pickup coil, a core pad, and a coil pad on one side surface thereof; and
coupling the first substrate and the second substrate to each other by connecting the portion and the other portion of the pickup coil to each other, connecting the ferromagnetic core and the core pad to each other, and connecting the coil pad and the ferromagnetic core to each other by covering the first substrate on the one side surface of the second substrate so that the ferromagnetic core is accommodated in the core hole.