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An Efficient Spraying Method with Cyclodextrine‐drived Aqueous Stripper for Removing of Organic Photoresist on Indium Tin Oxide Surface
Author(s) -
Kim Joon Hyun,
Lee KiSeong,
Jeong Byung Hyun,
Lee Dae Won,
Hong SungJei,
Kim Young Sung
Publication year - 2018
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.11576
Subject(s) - photoresist , indium tin oxide , aqueous solution , stripping (fiber) , indium , substrate (aquarium) , layer (electronics) , dissolution , materials science , chemical engineering , oxide , tin , chemistry , nanotechnology , metallurgy , composite material , organic chemistry , engineering , oceanography , geology
The chemical mechanism of inducing polymer breakage in a photoresist layer plays an important role in the photoresist removal from an indium tin oxide substrate. The spray structure for delivering the relevant functional material is involved in the process of binding and dissolving the PR (photoresist) material. This presents an efficient spraying process of removing the photoresist layer formed on a 260‐nm‐thick indium tin oxide substrate with a CD (cyclodextrine)‐drived aqueous stripper, simultaneously implementing proper mass transfer and heat transfer. It was taken to achieve an economical stripper consumption management by limiting the modified Weber number to 200 and the spray distance to 100 mm. As a result, stable removal performance was achieved, with optical and electric properties varying within the range of 1%, in CD drived aqueous stripping conditions (water content of the stripper composition ≤71%, stripper temperature = 40°C, and stripping time = 40 s).