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Area Selective Polymer Brush Deposition
Author(s) -
Cummins Cian,
Shaw Matthew T.,
Morris Michael A.
Publication year - 2017
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201700252
Subject(s) - polymer brush , polymer , materials science , polystyrene , nanotechnology , brush , substrate (aquarium) , chemical engineering , layer (electronics) , deposition (geology) , vinyl alcohol , polymer chemistry , polymerization , composite material , paleontology , oceanography , sediment , engineering , biology , geology
Polymer brush films with chemical functionality to attach to site specific substrate areas are introduced for area selective deposition (ASD) application. It is demonstrated that polymer brushes with chemically defined end sites can be selectively bound to copper‐specific regions of patterned copper/silica (Cu/SiO 2 ) substrates. The process described overcomes various limitations of currently used technology including cost, complexity, and throughput, with potential implications for future electronic devices and nanomanufacturing. A comparative study of amine‐terminated polystyrene and amine‐terminated poly‐2‐vinyl pyridine polymer brushes (i.e., PS‐NH 2 and P2VP‐NH 2 ) with similar molecular weights display contrasting behavior on patterned Cu/SiO 2 line features. Further, a thiol terminated poly‐2‐vinyl pyridine polymer brush (i.e., P2VP‐SH) is investigated as a direct spin‐on process to fabricate a metal oxide layer atop Cu areas only. The results presented here detail a novel methodology and open a new exciting process for ASD practices that can facilitate the precise deposition of dense metal, semiconductor, or dielectric films. We also discuss the applicability of polymer brushes to ASD uses going forward.