a pcb strip , a pcb strip assembly device , and methods of fabricating a pcb strip and using a pcb strip assembly device are provided . according to example embodiments , a pcb strip may include a pcb main body including a working area based on a process execution unit , wherein the working area may be divided into a first working area and a second working area and a plurality of units on the working area arrayed with a given interval in at least a width direction of the pcb main body , wherein the plurality of units may be arrayed on the first working area and the second working area and units on the first working area may be symmetric to units on the second working area with respect to a point of symmetry at a center of width of the working area .