title: Synthesis and characterization of nanowire-based anisotropic conductors.
abstract: We investigated the potential of commercially available porous templates to be used for the fabrication of functional anisotropic conductors. A galvanostatic deposition technique was used to fabricate arrays consisting of 200 nm diameter nanowires inside the pores of polycarbonate membranes. A tape lift-off procedure allowed the complete removal of any residual metal from both sides of the polymer membrane to form an anisotropic conductive film. The 10 microm thick film has roughly 3 x 10(8) nanowires per cm2, and it showed near zero electrical resistance perpendicular to the surface while appearing completely open to circuits between any points on the surface. The preparation of the film, characterization using SEM, AFM, and resistance measurements are presented. The 1D conductivity of these membranes may have many potential applications for microelectronic interconnects for packaging technologies.
authors.affiliation: Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte, NC 28223, USA.
authors.forename: E Charles H
authors.initials: EC
authors.lastname: Sykes
authors.forename: Aja
authors.initials: A
authors.lastname: Andreu
authors.forename: Dan A
authors.initials: DA
authors.lastname: Deadwyler
authors.forename: Kasra
authors.initials: K
authors.lastname: Daneshvar
authors.forename: Mahnaz
authors.initials: M
authors.lastname: El-Kouedi
mesh_terms: D016880:Anisotropy; D004559:Electric Wiring; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D004566:Electrodes; D006046:Gold / Q000737:chemistry*; D008422:Materials Testing; D008567:Membranes, Artificial; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D013499:Surface Properties
chemical_list: D008567:Membranes, Artificial; D006046:Gold