A method of making a Lateral-Moving Micromachined Thermal Bimorph which provides the capability of achieving in-plane thermally-induced motion on a microchip, as opposed to the much more common out-of-plane, or vertical, motion seen in many devices. The present invention employs a novel fabrication process to allow the fabrication of a lateral bimorph in a fundamentally planar set of processes. In addition, the invention incorporates special design features that allow the bimorph to maintain material interfaces.