Abstract: A device for splitting substrates that include a cleavage plane therein. The device includes a base and a control device for performing controlled displacement of certain substrates. The control device includes at least one pusher that is mobile relative to the base. The pusher is adapted to accommodate substrates in a reception space thereon, and is capable of displacing substrates arranged above it in a substrates support. A detector is provided to determine the absence or the presence of obstacles inside at least one region of the reception space of the pusher when the pusher is in a detection position.

Abstract: The invention relates to a substrate holder comprising a substrate support, moveable clipping device configured to engage a substrate positioned on the support in a first position and to be positioned away from the substrate in a different position, a positioning device for moving the clipping device from the second position towards the first position. To prevent a contact between the clipping device and support when no substrate is positioned thereon, an elastic stop element is used which limits the movement of the clipping device. The invention furthermore relates to a clipping device and an ion implanter using the substrate holder and the clipping device.