This skill can be considered a type of electrical engineering and computing. Specifically, this field deals with the creation and repair of robots. Or more specifically, it provides the electrical components and underlying design to the robot. The robots in question are normally assembly machines or extremely sophisticated laboratory equipment.
This skill also deals with the handling of mechanical mapping to humans, cybernetics, nanotechnology, and anything related to transhumanism. Robotics is meant to give systems a resemblance of intelligence and self-operation. Nanotechnology miniaturizes aspects of technology created by other skills. Transhumanism is the replacement of limbs and introduction of cybernetic implants to an organism.
The number of support skills required is enormous. Pretty much every Science and Technology skill that exists.