Commissariat &#xc0; L'&#xc9;nergie Atomique Et Aux &#xc9;nergies Alternatives

Commissariat a L'energie Atomique

Marc Aid

Emmanuel Defay

Guy-Michel Parat

Aude Lefevre

Nicolas Sarrut-Rio

Pierre-Patrick Lassagne

Jean-Baptise Albertini

A device for detecting elements in a fluid environment includes at least one acoustic resonator having a surface designed for fixing of elements. The resonator is configured for generating and measuring Lamb waves fostering generation of symmetrical Lamb waves. The device analyzes the resonance frequency of the resonator to determine the variation of the resonance frequency of the symmetrical Lamb waves representative of the presence of the elements.

Device and method for detecting elements in a fluid environment

A method for producing a layer of AlN having substantially vertical sides relative to the surface of a substrate, including: the formation of an AlN growth layer on a substrate, the deposition of the AlN layer, on at least said growth layer, the formation of a mask layer over the AlN layer, at least one edge of which is aligned with at least one edge or side of the growth layer, in a plane which is substantially perpendicular to a surface of the substrate or a surface of the growth layer, and the etching of the AlN layer.

Method for obtaining a layer of AlN having substantially vertical sides

According to the invention, the magnetoresistance ( ) is coupled to a secondary air gap ( ) formed by two hollowed out magnetic parts ( - - ). Applicable to the measurement of magnetic fields.

Magnetic field sensor with magnetoresistor

Growing community of inventors

Grenoble, France

Marc Aid