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The Journal of Semiconductor Technology and Science (JSTS) is an international, peer-reviewed, and open-access journal that is published bimonthly.
- Scope: semiconductor processes, devices, circuits, and MEMS.
- Editor-in-Chief: Prof. Woo Young Choi (ECE, Seoul National University)
- Indexed within Science Citation Index Expanded (SCIE), SCOPUS, Korea Citation Index (KCI), and other databases.

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Title p-GaN/AlGaN/GaN Micro-LED Integrated with Monolithic Driving IC
Authors (Hee-Jae Oh) ; (Dong-Ik Oh) ; (Hyun-Seop Kim) ; (Ho-Young Cha)
DOI https://doi.org/10.5573/JSTS.2025.25.2.128
Page pp.128-133
ISSN 1598-1657
Keywords ?p-GaN/AlGaN/GaN heterojunction; micro-LED; 2T1C driving IC; monolithic integration
Abstract The monolithic integration of a driving integrated circuit (IC) with a micro-light-emitting diode (microLED) offers the advantage of transfer-free integration between the LED and the driving IC. A p-GaN/AlGaN/GaN heterojunction platform was employed to fabricate the monolithically integrated driving IC within individual microLED pixels. A 2T1C driving IC, featuring enhancement-mode GaN transistors and a metal-insulator-metal (MIM) capacitor, was designed and monolithically fabricated on a single wafer. The prototype micro-LED pixel with the integrated driving IC demonstrated successful operation, with fast rise and fall times of 20 ns and 50 ns, respectively