Abstract: An electronic chip includes at least an electronic circuit disposed on a front face of a substrate; and an embrittlement structure comprising at least blind holes, each extending through a rear face of the substrate and a portion of the thickness of the substrate and each having a section, in a plane parallel to the rear face of the substrate, of surface area S and having a closed outer contour, the shape of which includes at least one radius of curvature R, such that S>?·R2.

Abstract: Electronic chip comprising: an electronic circuit; a resistive element arranged on a rear face of a substrate; two conductive vias passing through the substrate, each connected to the electronic circuit and to one of the ends of the resistive element, and masked by the resistive element; and comprising a weakening structure formed of blind holes such that each of the blind holes comprises a section, at the rear face, of shape and of external dimensions similar to those of the conductive vias, and comprises a portion of the substrate masked by the resistive element, or in which the resistive element comprises first and second parts spaced apart from each other, arranged one above the other, electrically connected to each other and together forming a coil pattern and/or several alternating, intermingled, wound up or intertwined patterns.

Abstract: An electronic chip includes at least an electronic circuit disposed on a front face of a substrate; and an embrittlement structure comprising at least blind holes, each extending through a rear face of the substrate and a portion of the thickness of the substrate and each having a section, in a plane parallel to the rear face of the substrate, of surface area S and having a closed outer contour, the shape of which includes at least one radius of curvature R, such that S>?·R2.

Abstract: Electronic chip comprising: an electronic circuit; a resistive element arranged on a rear face of a substrate; two conductive vias passing through the substrate, each connected to the electronic circuit and to one of the ends of the resistive element, and masked by the resistive element; and comprising a weakening structure formed of blind holes such that each of the blind holes comprises a section, at the rear face, of shape and of external dimensions similar to those of the conductive vias, and comprises a portion of the substrate masked by the resistive element, or in which the resistive element comprises first and second parts spaced apart from each other, arranged one above the other, electrically connected to each other and together forming a coil pattern and/or several alternating, intermingled, wound up or intertwined patterns.