Patent ID: 8211729

Claim:
A method for making a microelectronic device comprising at least one electromechanical or electronic component provided with a suspended structure, the method comprising, in this order, the steps a), b), c), and d) of: a) forming on a supporting layer, at least one element bound to at least one anchoring block in at least one thin layer positioned on the supporting layer, said element being intended to form said suspended structure of the electromechanical or electronic component, b) removing a portion of the supporting layer at least under said element, so as to release the suspended structure, c) forming a passivation layer around said element so as to completely encompass said element, d) forming an encapsulation layer covering said passivation layer and said element, the encapsulation layer being based on a material capable of being selectively etched with regard to the material of the passivation layer, the passivation and encapsulation layers being formed so as to cover the thin layer, and the method further comprising after step d), steps of: removing portions of the encapsulation layer, so as to reveal a given area of said thin layer, forming a protective layer of the encapsulation layer, partially removing the protection layer and the passivation layer so as to reveal at least said given area of said thin layer, forming at least one transistor from said given area of said thin area, making contact and/or interconnection conducting areas, and then suppressing the encapsulation layer around said element selectively with regard to the passivation layer, again releasing said suspended structure.