DOI QR코드

DOI QR Code

반도체 FAB의 비말에 의한 감염병 전파 가능성 연구

Possibility of Spreading Infectious Diseases by Droplets Generated from Semiconductor Fabrication Process

  • 오건환 (서울과학기술대학교 융합과학대학원) ;
  • 김기연 (서울과학기술대학교 융합과학대학원)
  • Oh, Kun-Hwan (Graduate School of Convergence Science, Seoul National University of Science and Technology) ;
  • Kim, Ki-Youn (Graduate School of Convergence Science, Seoul National University of Science and Technology)
  • 투고 : 2022.02.18
  • 심사 : 2022.05.29
  • 발행 : 2022.06.30

초록

Objectives: The purpose of this study is to verify whether droplet-induced propagation, the main route of infectious diseases such as COVID-19, can occur in semiconductor FAB (Fabrication), based on research results on general droplet propagation. Methods: Through data surveys droplet propagation was modeled through simulation and experimental case analysis according to general (without mask) and mask-wearing conditions, and the risk of droplet propagation was inferred by reflecting semiconductor FAB operation conditions (air current, air conditioning system, humidity, filter conditions). Results: Based on the results investigated to predict the possibility of spreading infectious diseases in semiconductor FAB, the total amount of droplet propagation (concentration), propagation distance, and virus life in FAB were inferred by reflecting the management parameter of semiconductor FAB. Conclusions: The total amount(concentration) of droplet propagation in the semiconductor fab is most affected by the presence or absence of wearing a mask and the line air dilution rate has some influence. when worn it spreads within 0.35~1m, and since the humidity is constant the virus can survive in the air for up to 3 hours. as a result the semiconductor fab is judged to be and effective space to block virus propagation due to the special environmental condition of a clean room.

키워드

과제정보

이 논문은 2020년도 정부(교육부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구 사업임(NRF-2020R1A6A1A03042742).

참고문헌

  1. Anfinrud P, Stadnytskyi V, Bax CE, Bax A. (2020) Droplets and Aerosols in the Transmission of SARS-CoV-2. New England Journal of Medicine 2020;382:2063 https://doi.org/10.1056/nejmc2009324
  2. Choi KM, Lee JE, Cho KY, Kim KS, Cho SH. Clean room Structure, air conditioning and contamination control systems. Journal of Korean Society of Occupational and Environmental Hygiene 2015;25(2):202-210 https://doi.org/10.15269/JKSOEH.2015.25.2.202
  3. Dbouk T & Drikakis D. On Coughing and Airborne Droplet Transmission to Humans. Physics of Fluids 2020a; 32:1-10
  4. Dbouk T & Drikakis D. On respiratory droplets and face maskes. Physics of Fluids 2020b;32:11-17
  5. Doremalen V et al. Aerosol and surface stability of HCoV-19 (SARS-CoV-2) compared to SARS-CoV-1. The New England Journal of Medicine. 2020;382:1564-1567 https://doi.org/10.1056/nejmc2004973
  6. Doremalen V et al. Aerosol and surface stability of HCoV-19 (SARS-CoV-2) compared to SARSCoV-1. The New England Journal of Medicine. DOI: 10.1056/NEJMc2004973 (2020)
  7. Forouzandeh P, O'Dowd K, Pillai SC. Face mask and respirators in the fight against the COVID-19 pandemic: An overview of the standards and testing methods. Safety Science 2021;133:2-7
  8. Lai ACK, Cheng YC. Study of expiratory droplet dispersion and transport using a new Eulerian modeling approach. Atmospheric Environment 2007;35:7473-7484
  9. Lu H, Stratton CW, Tang YW. Outbreak of pneumonia of unknown etiology in Wuhan, China: The mystery and the miracle. Journal of medical virology 2020;92(4):401-406 https://doi.org/10.1002/jmv.25678
  10. Rodriguez-Urrego D. Air quality during the COVID-19: PM2.5 analysis in the 50 most polluted capital cities in the world. Environmental Pollution 2020;115042 https://doi.org/10.1016/j.envpol.2020.115042