Research Team of Professor Jong-cheol Lee (Electronic Convergence Engineering) and Professor Nam-young Kim (Electronic Engineering), Development of Multilayer GaAs IPS Resonator

- Published as Cover Paper in Micromachines Volume 15, March 2024 JCR Q1, IF=3.4 -

The research team of Professor Jong-cheol Lee (Department of Electronic Convergence Engineering) and Professor Nam-young Kim (Department of Electronic Engineering) announced the successful development of a 'Multilayered GaAs IPD Resonator with 5 airbridges applicable to sensor systems through their joint research.

(From left to right: Professor Jong-cheol Lee, Professor Nam-young Kim)

This research has been widely recognized, to the extent that it has been published as the cover paper for the March 2024 issue of Micromachines, an SCI-level international journal. The link to access the journal is as follows: https://www.mdpi.com/2072-666X/15/3/367

In this study, a Ring Resonator was integrated on a GaAs substrate using IPD processes with multilayer spiral inductors and airbridges with a resonant frequency of 1.99 GHz, an insertion loss of 0.07 dB, a reflection loss of 39 dB, and a Q value of 1.15.

The IPD Resonator sensor was used to detect glucose and demonstrated high sensitivity capable of detecting even small amounts of 0.2mg/mL, thereby indicating the potential to achieve high sensitivity in integrated systems and real-time sensing operations.