Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Fabrication of High Density and High Uniformity Irradiation Light Source for Exposure Curing System Using 365 nm and 385 nm Wavelength SMD LED and High Transmittance Silicone Resin TIR Bar Type Lens

365 nm 및 385 nm SMD LED와 TIR 바형 렌즈를 이용하는 고밀도 고균일성 특성의 경화용 광원모듈 제작

  • Pil Hong Jeong (Department of Electronics Engineering, Sunmoon University) ;
  • Beom Jin Kim (Department of Electronics Engineering, Sunmoon University) ;
  • Yeong Jin Kim (Department of Electronics Engineering, Sunmoon University) ;
  • Dong Gyu Jeon (Department of Electronics Engineering, Sunmoon University) ;
  • Hyo Min Kim (Department of Electronics Engineering, Sunmoon University) ;
  • Jae Hyeon Kim (Department of Display Semiconductor Engineering, Sunmoon University) ;
  • Hyeong Min Kim (Department of Display Semiconductor Engineering, Sunmoon University) ;
  • Gyu Seong Lee (Department of Display Semiconductor Engineering, Sunmoon University) ;
  • Kawan Anil (Department of Electronics Engineering, Sunmoon University) ;
  • Eung Ryul Park (Department of Electronics Engineering, Sunmoon University) ;
  • Soon Jae Yu (Department of Electronics Engineering, Sunmoon University) ;
  • Min Jun Ann (Semiconductor Division, Institute of Alpha Plus Co., Ltd.) ;
  • Do Won Hwang (Semiconductor Division, Institute of Alpha Plus Co., Ltd.)
  • 정필홍 (선문대학교 전자공학과) ;
  • 김범진 (선문대학교 전자공학과) ;
  • 김영진 (선문대학교 전자공학과) ;
  • 전동규 (선문대학교 전자공학과) ;
  • 김효민 (선문대학교 전자공학과) ;
  • 김재현 (선문대학교 디스플레이반도체공학과) ;
  • 김형민 (선문대학교 디스플레이반도체공학과) ;
  • 이규성 (선문대학교 디스플레이반도체공학과) ;
  • ;
  • 박응렬 (선문대학교 전자공학과) ;
  • 유순재 (선문대학교 전자공학과) ;
  • 안민준 (주식회사 알파플러스 부설연구소) ;
  • 황도원 (주식회사 알파플러스 부설연구소)
  • Received : 2024.01.30
  • Accepted : 2024.02.14
  • Published : 2024.07.01
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Abstract

An irradiator is developed using two UVA wavelength ranges of SMD LEDs as a curing light source. This module has dimensions of 545×111×300 mm3 and is equipped with a TIR bar-shaped lens made of PDMS silicone resin. The developed irradiator offers high uniformity, with 89% in the centerline of the horizontal axis direction, for two different wavelength ranges of 365 nm and 385 nm. The radiation intensity from the light source module shows highly directional characteristics, and the irradiator provides a maximum irradiance of 1,634 mW/cm2 at a working distance of 50 mm. During the initial 5 minutes of operation, the irradiance experiences a rapid decrease. However, this issue is addressed by optimizing the LED's current reduction characteristics and managing the Transistor's temperature rise in the constant current circuit. After continuous operation for approximately 60 minutes. The highest temperature, near the central part of the irradiating surface, reaches 69.7℃, while the lowest temperature, near the edges, is 41.1℃.

Keywords

Acknowledgement

이 연구는 산업통상자원부 한국산업기술진흥원(KIAT)과 교육부의 부처협업사업[반도체전공트랙 인력양성사업] (P0022203) 지원으로 수행하였습니다.

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