Patent ID: 7356913
Filing Date: 2008-04-15
Classification: B81B,H01G,H01H,Y10T

Abstract:
1. A process for manufacturing a microsystem assembled on a surface of a substrate, said microsystem producing a shift between a first state of functioning and a second state of functioning by means of a bimetal-effect thermal actuator actuating a deformable element, the process comprising: forming, on the surface of the substrate, a sacrificial mass able to give an arch shape to a layer of appropriate material deposited on the surface of the substrate; depositing the layer of appropriate material on the surface of the substrate and the sacrificial mass; depositing, on the layer of appropriate material, a layer of a conductive material able to form with the layer of appropriate material, the bimetal-effect thermal actuator; etching a portion of the layer of conductive material to form the bimetal-effect thermal actuator; and eliminating the sacrificial mass to obtain the deformable element constituted by the arch shape part of the layer of appropriate material, the elimination of the sacrificial mass causing the deformable element to be deflected and concave in a first direction with respect to the surface of the substrate, the deformable element being non-planar and non-stressed when in the first state of functioning.