Disclosed herein are fine-featured traces for integrated circuit (IC) package support structures, and related systems, devices, and methods. For example, a device may include a printed circuit board (PCB) having an insulating material and a heater trace on the insulating material. In some embodiments, the heater trace may have a section with a width less than 3.5 mils. In some embodiments, a section of the heater trace may be adjacent to a burned portion of the insulating material.