Abstract:
L'invention concerne un dispositif de fixation de deux éléments (11-12) tels qu'une puce, un interposeur et un support dont un au moins des deux éléments (11-12) est micro fabriqué, le dispositif comportant: - au moins un plot (25) saillant et structuré dans un premier élément (11) s'étendant en regard du deuxième élément (12), - le plot (25) étant configuré pour créer une zone de fixation (16) entre une extrémité (27) du plot (25) et le deuxième élément (12), - une couche de fixation (14) déposée dans la zone de fixation (16) de sorte à fixer le plot (25) avec le deuxième élément (12), et - une cavité (30) réalisée au niveau de la zone de fixation (16) de sorte que la couche de fixation (14) s'étende au moins en partie à l'intérieur de la cavité (30).
Abstract:
Dispositif de mesure de pression par effet capacitif entre deux électrodes comprenant au moins une électrode sensible (11) disposée en regard et à distance d'une électrode fixe (211) de manière à délimiter une cavité (4) dans laquelle règne une pression de référence (Pref). Le dispositif selon l'invention comprend en outre un boîtier (1) de protection destiné à isoler au moins l'électrode fixe de l'environnement ambiant dans lequel règne la pression à mesurer (P), ledit boîtier (1) présentant au moins une partie massive formant logement (10) destiné à contenir au moins l'électrode fixe (211), et une partie amincie formant l'électrode sensible (11).
Abstract:
The invention relates to a device for measuring pressure through the capacitive effect between two electrodes, including at least one sensitive electrode (11) spaced apart from and opposite a stationary electrode (211) so as to define a cavity (4) in which a reference pressure (Pref) exists. The device according to the invention further includes a protective housing (1) for insulating at least the stationary electrode from the ambient environment in which the pressure (P) to be measured exists, said housing (1) having at least one solid portion, forming a recess (10) for containing at least the stationary electrode (211), and a thinned portion forming the sensitive electrode (11).
Abstract:
A resonator micro-electronic inertial sensor, preferably a micro-electromechanical system (MEMS) sensor (e.g. a gyro), for detecting linear accelerations and rotation rates in more than one axis comprises: €¢ a proof-mass system (21.1, ..., 21.4) flexibly suspended above a substrate for performing a rotational in-plane vibration about a central axis (24,) €¢ a drive electrode system (D1, ..., D4) for driving the proof-mass system (21.1, ..., 21.4) to perform said rotational in-plane vibration, €¢ and a sensing electrode system (S1, ..., S8) connected to the proof-mass system (21.1, ..., 21.4) for detecting linear accelerations or rotation rates in more than one axis. Said proof-mass system (21.1, ..., 21.4) has more than two proof-mass elements flexibly coupled (25.1a, 25.1 b) to each other. Each proof-mass element (21.1, 21.2) is directly and flexibly connected (23.1, 25.1a, 25.1 b) to an anchor structure (22) on the substrate (32). The proof-mass elements (21.1, ..., 21.4) are preferably arranged in a ring-shaped configuration between an inner and an outer radius (R1, R2) with respect to the central axis (24).
Abstract:
The invention concerns a device for attaching two elements (11-12) such as a chip, an interposer and a support, at least one of said two elements (11-12) being micro-manufactured, the device comprising: - at least one projecting stud (25) structured in a first element (11) extending facing the second element (12), - the stud (25) being configured to create an attachment area (16) between one end (27) of the stud (25) and the second element (12), - an attachment layer (14) deposited in the attachment area (16) so as to attach the stud (25) to the second element (12), and - a recess (30) made in the attachment area (16) such that the attachment layer (14) extends at least partially into the recess (30).