Patent ID: 8501584

Claim:
A method of manufacturing a monocrystaline or polycrystalline silicon micromechanical part of a timepiece movement with at least two levels, the method including the steps of: a) machining, by chemical means, a first element of the silicon micromechanical part or a plurality of said first elements in a first silicon wafer and at least one slot on edge of the first wafer; b) machining a second element, of a different shape to that of the first element, or a plurality of said second elements in a second silicon wafer; c) separating the second elements from the second wafer; d) positioning the second elements in a quartz template, wherein the quartz template has a recess and at least one rib; e) forming an assembly by positioning the first wafer in the recess of the quartz template by engaging the at least one slot formed on edge of the first wafer to the corresponding rib of the quartz template so that the first and second elements are placed face to face against each other; f) performing heat oxidation of the assembly formed in step e), and g) separating the silicon micromechanical part or parts from the first wafer.