I. Introduction
Nano scale carbon nanotubes (CNTs) have been widely discussed in literature due to their superior electrical and thermal conductivity properties compared to conventional metallic conductors and polymer materials [1]–[4]. CNTs also exhibit a combination of superior mechanical strength and stiffness with the low material density compared to metals and carbon fibers. Due to its superior electrical conductivity properties especially at high-frequencies, CNTs have been proposed for VLSI interconnect applications [5]–[6]. However, I replication of such superior physical properties at macroscopic scale has been a technical challenge because of the large number CNT-alignment difficulty. So, recent advancements in carbon material science and engineering have focused on trying to find the reliable manufacturing process of macroscopic scale carbon nanotubes fibers (CNTF) with desirable physical properties [7]. From these recent enhancements, there have been increasing interests replacing conventional metallic conductor with CNT material in various power electronics industry which requires high power density, lightweight, durability and high efficiency.