A METHOD OF PROVIDING A MEMS DEVICE COMPRISING A PYRAMIDAL PROTRUSION, AND A MOLD

摘要

A method of providing a MEMS device, such as an AFM probe, comprising a three-sided pyramidal protrusion is made using a multitude of MEMS method steps. To allow the reliable and speedy manufacture of such a 5 MEMS device comprising a three-sided protrusion on a massive scale, wherein the protrusion has a relatively small half-cone angle and a single apex, a mold is used. The mold comprises a sacrificial layer on top of a base substrate. The method of providing the MEMS device comprises - providing an area at the first side of the mold which area comprises a pit with a layer of protrusion material, - patterning the layer of protrusion material to the desired shape, and - isotropically etching the sacrificial layer of the mold with an isotropic etchant capable of etching the sacrificial layer so as to separate the MEMS device from at least the base substrate of the mold.