In this work we present the results of a Hard X-ray Photoelectron Spectroscopy (HAXPES) study on the creation of metallic copper layers via metal-salt infiltration into a poly-2-vinylpyridine (P2VP) film. Metal salt inclusion is a wet chemistry process which allows for the fabrication of both metal and metal oxide films by means of infiltrating a receptive polymer thin film with metal salt precursors. A copper infiltrated P2VP film was subject to UV/Ozone treatment to form copper oxide and annealed in-vacuo to reduce the film to metallic copper. HAXPES and transmission electron microscope (TEM) measurements were used to study the polymer film before and after metal salt infiltration, along with analysis of the copper oxide created after UV/Ozone treatment. The results show successful infiltration of the metal salt into the polymer film, as well as complete conversion to copper oxide following UV/Ozone treatment and reduction to metallic copper with a subsequent in-situ anneal, which demonstrates the ability of the technique for the creation of several key integrated circuit features.
Item Type:
Article (Published)
Refereed:
Yes
Uncontrolled Keywords:
Copper, Metal Salt Inclusion; Polymer Infiltration; Area Selective Deposition; P2VP; Metal Salt; HAXPES
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Funders:
Science Foundation Ireland (grants 12/RC/2278 and 16/SP/3809), SOLEIL Synchrotron (SOLEIL proposal number 20180106), CONACyT (2018-000007-01EXTV-00235)
ID Code:
23648
Deposited On:
19 Aug 2019 12:10 by
Enda Mcglynn
. Last Modified 03 Feb 2023 16:06