A method is disclosed for forming a single crystal cantilever and tip on a substrate. The method can include the operation of defining an implant area on the substrate with a layer of photoresist. A further operation can be implanting oxygen into the substrate in the implant area to a predetermined depth to form a buried oxide layer. The buried oxide layer can define a bottom of the single crystal cantilever and tip. Another operation can involve shaping the single crystal cantilever and tip from the substrate above the buried oxide layer.