A single-body structure is presented for use as a tool tip for making modifications and/or collecting measurements on a target object. The single-body structure comprises a first end portion, a second end portion opposite the first portion, and a mid portion between the first and second end portions,...http://www.google.com/patents/US6787768?utm_source=gb-gplus-sharePatent US6787768 - Method and apparatus for tool and tip design for nanomachining and measurement