Stmicroelectronics S.a.

Commissariat a L'energie Atomique

Stmicroelectronics (crolles 2) Sas

Other

Stmicroelectronics (grenoble 2) Sas

Pascal Ancey

Guillaume Bouche

Grégory Caruyer

Fabrice Casset

Thomas Skotnicki

Karim Segueni

Nicolas Abelé

Bertrand Dubus

Philippe Robert

Stephane Monfray

Laurent-Luc Chapelon

Stéphane Monfray

Alexis Farcy

Olga Kokshagina

Alexandre Talbot

Simon Gousseau

Alexandre Volatier

Philippe Coronel

Bernard Viala

Joaquin Torres

Perceval Coudrain

Sandrine Lhostis

Olivier Girard

Skandar Basrour

Cédrick Chappaz

Paul Muralt

Cedric Durand

Daniel Saias

Lionel Cadix

Yacine Felk

Yves Gilot

Serge Laffont

Emilie Trioux

Sandrine Couderc

Nick Smears

A method of manufacturing bistable strips having different curvatures, each strip including a plurality of portion of layers of materials, wherein at least one specific layer portion is deposited by a plasma spraying method in conditions different for each of the strips.

Method of manufacturing bistable strips having different curvatures

A method of manufacturing a heat pipe, including the steps of: forming in a substrate a cylindrical opening provided with a plurality of ring-shaped recessed radially extending around a central axis of the opening; arranging in the recesses separate ring-shaped strips made of a material catalyzing the growth of carbon nanotubes; and growing carbon nanotubes in the opening from said ring-shaped strips.

Heat pipe and method of manufacturing the same

An integrated structure includes a support supporting at least one chip and a heat dissipating housing, attached to the chip. The housing is thermally conductive and has a thermal expansion compatible with the chip. The housing may further including closed cavities filled with a phase change material.

Integrated structure with improved heat dissipation

The disclosure relates to a method of manufacturing vibratory elements, comprising forming on a substrate a multilayer structure by an integrated circuit manufacturing method, the multilayer structure comprising an element susceptible of vibrating when it is subjected to an electrical signal, and electrodes for transmitting an electrical signal to the vibratory element, the vibratory element comprising a mechanical coupling face that is able to transmit to control element vibrations perceptible by a user.

Method of manufacturing a vibratory actuator for a touch panel with haptic feedback

The integrated circuit comprises a support substrate having opposite first and second main surfaces. A cavity passes through the support substrate and connects the first and second main surfaces. The integrated circuit comprises a device with a mobile element, the mobile element and a pair of associated electrodes of which are included in a cavity. An anchoring node of the mobile element is located at the level of the first main surface. The integrated circuit comprises a first elementary chip arranged at the level of the first main surface and electrically connected to the device with a mobile element.

Integrated circuit comprising a device with a vertical mobile element integrated in a support substrate and method for producing the device with a mobile element

A Micro Electro Mechanical Systems resonance device includes a substrate, and an input electrode, connected to an alternating current source having an input frequency. The device also includes an output electrode, and at least one anchoring structure, connected to the substrate. The device further includes a vibratile structure connected to an anchoring structure by at least one junction, having a natural acoustic resonant frequency. The vibration under the effect of the input electrode, when it is powered, generates, on the output electrode, an alternating current wherein the output frequency is equal to the natural frequency. The vibratile structure and/or the anchoring structure includes a periodic structure. The periodic structure includes at least first and second zones different from each other, and corresponding respectively to first and second acoustic propagation properties.

Micro-electromechanical resonance device with periodic structure

A microresonator comprising a single-crystal silicon resonant element and at least one activation electrode placed close to the resonant element, in which the resonant element is placed in an opening of a semiconductor layer covering a substrate, the activation electrode being formed in the semiconductor layer and being level at the opening.

Microresonator

The invention relates to a device consisting of an electromechanical microswitch comprising mobile beam (). According to the invention, at least part () of the beam forms the piezoelectric element of a piezoelectric actuator.

Assembly of a microswitch and of an acoustic resonator

A coupled Lamb wave resonator filter includes first and second Lamb wave resonators. The first Lamb wave resonator includes a first resonant layer, and first and second electrodes on opposite sides of the first resonant layer. The second Lamb wave resonator includes a second resonant layer, and third and fourth electrodes on opposite sides of the second resonant layer. One of the sides of the first resonant layer belongs to a plane parallel to a plane corresponding to one of the sides of the second resonant layer. Both planes pass through the third and fourth electrodes of the second Lamb wave resonator. A periodic lattice acoustically couples the first and second resonant layers.

Coupled lamb wave resonators filter

Method for making an electromechanical component on a plane substrate and comprising at least one structure vibrating in the plane of the substrate and actuation electrodes. The method comprises at least the following steps in sequence:

Method for making an electromechanical component on a plane substrate

A switchable filter may include a first acoustic resonator including first electrodes, and a first resonant layer between the first electrodes and having electrostrictive material. The switchable filter may further include a second acoustic resonator including second electrodes, and a second resonant layer between the second electrodes and having electrostrictive material. The second acoustic resonator may be acoustically coupled with the first acoustic resonator. At least one of the first electrodes and at least one of the second electrodes may be arranged between the first resonant layer and the second resonant layer. The electrostrictive material may adjust a resonance and a filter switching of the first and second acoustic resonators as a function of a control voltage applied to terminals of the first and second acoustic resonators. Two electrodes from one of the first electrodes and the second electrodes may be filter input electrodes. Two electrodes from one of the first electrodes and the second electrodes may be filter output electrodes.

Switchable filter with resonators

A method for forming a variable capacitor including a conductive strip covering the inside of a cavity, and a flexible conductive membrane placed above the cavity, the cavity being formed according to the steps of: forming a recess in the substrate; placing a malleable material in the recess; having a stamp bear against the substrate at the level of the recess to give the upper part of the malleable material a desired shape; hardening the malleable material; and removing the stamp.

Method for forming a variable capacitor

Acoustic resonator device () includes an active element () and a support provided with a membrane (). The active element () is provided with at least one piezoelectric layer () and is surmounted by a multilayer stack (). The multilayer stack () is provided with at least three layers, including at least one layer () of high acoustic impedance and at least one layer () of low acoustic impedance. An integrated circuit including at least one such acoustic resonator device is also disclosed.

Acoustic resonator device

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Revel, France

Pascal Ancey