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Effects of the binder polymer and powder type on the resolution and edge curl of a silver electrode formed by a photolithographic process
Author(s) -
Kim Soon Hak,
Han Yoon Soo,
Kwon Younghwan,
Kwak Giseop,
Kwon Oh Hyeong,
Park Lee Soon
Publication year - 2009
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.30121
Subject(s) - electrode , materials science , polymer , photolithography , composite material , acrylic acid , curl (programming language) , polymer chemistry , chemical engineering , nanotechnology , chemistry , monomer , computer science , engineering , programming language
Silver (Ag) electrodes with a high resolution and a low edge curl dimension for plasma display panels were successfully fabricated through a photolithographic process using photosensitive Ag pastes with several polymeric binders. The gap and line resolutions of the photosensitive Ag pastes were examined as a function of the molecular weights and acid values of the acrylic binders with carboxylic acid groups. The effect on the formation of edge curls was also investigated with dry‐ and wet‐processed Ag powders. Ag electrode patterns with a line resolution of 20 μm, a gap resolution of 40 μm, and an edge curl dimension of 0.8 μm could be achieved with the developing process in 34.5 s (break point × 1.5) when the photosensitive Ag paste was prepared with the polymeric binder with a molecular weight of 23,320 g/mol and an acid value of 94.98 mg of KOH/g of polymeric binder and with dry‐processed Ag powder. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009