In the aerospace industry, where extreme environmental conditions, high reliability requirements, and precise signal transmission are non-negotiable, the performance of electronic components directly determines the safety and efficiency of aircraft, satellites, and space exploration equipment. Among these critical components, 18µm (0.7mil) gold bonding wire stands out as a core interconnect material, with its conductivity stability being the key factor that ensures long-term, stable operation of aerospace electronic systems. This article explores the conductivity stability characteristics of 18µm (0.7mil) gold bonding wire, its unique advantages in aerospace applications, and the practical scenarios where it plays an irreplaceable role—tailored for industry professionals, procurement teams, and technical researchers searching for reliable interconnect solutions.