摘要:
A method and device for implementing the method for anisotropically plasma etching a substrate (e.g., silicon body). The device has a chamber and plasma source for generating a high-frequency electromagnetic alternating field and a reaction region for generating a plasma having reactive species, within the chamber, that is generated by the action of the alternating field on etching gas and passivation gas introduced at the same time but spatially separated from it. An arrangement defines at least one first zone acted on by the etching gas and at least one second zone acted on by the passivation gas in the reaction region. The device has a mixing region downstream of the reaction region in which the reactive species generated from the etching gas in the first zone and the reactive species generated from the passivation gas in the second zone are blended before they act on the substrate.
摘要:
In a method for the production of a field-effect structure and a field-effect structure, a movable gate structure is arranged above a gate region in a substrate between a drain and a source. The gate region is covered with a gate oxide. The movable gate structure is created from silicon-germanium and in an intermediate step of the production method is arranged on a germanium sacrificial layer on the gate oxide.
摘要:
A method of sacrificial layer etching of micromechanical surface structures, in which a sacrificial layer is deposited on a heatable silicon substrate and is structured. A temperature difference between the substrate and the vapor phase of an etching medium is established in such a way that exposed metal contacts made of aluminum alloys are not attacked at the same time and are not subsequently exposed to any risk of corrosion.
摘要:
To produce monocrystalline layers of conducting or semiconducting materials on porous monocrystalline layers of the same material in a reproducible and time-saving manner, a method is provided which involves applying an amorphous layer of the same material to the porous material and converting the amorphous layer to a monocrystalline layer by tempering.
摘要:
An acceleration sensor, particularly a Coriolis rotation-rate sensor, having a swinging structure that is movably suspended on a substrate (base) and can be deflected due to an acceleration effect, the sensor further having an arrangement for generating a planar swinging movement of the swinging structure, particularly a rotational swinging movement, and an evaluating arrangement for detecting a deflection of the swinging structure that is stipulated by acceleration, particularly for detecting a Coriolis acceleration. The swinging structure (12) is rotatably suspended so as to perform a planar swinging movement, and should perform a planar, rotational swinging movement.
摘要:
A force sensor, especially an acceleration sensor or a pressure sensor, has a structure that vibrates in resonance, and its oscillation frequency is variable due to an acting force which is to be detected. The distance of an operating point of the force sensor from the point of its mechanical instability can be adjusted by applying an electric voltage.
摘要:
A process for structuring a movable element out of a membrane region. A sacrificial layer and a sealing layer are applied to the underside of the membrane region. Following removal of the sacrificial layer, sealing layer forms a limit stop and a seal for the movement of the movable element.
摘要:
In a force sensor, a resonator is mounted by means of a dielectric layer on a bending element. Deformation of the bending element changes the resonant frequency of the resonator.
摘要:
A method for manufacturing sensors from a multilayer plate with upper and lower monocrystalline silicon layers and an etching layer between them. The upper silicon layer is structured by the introduction of troughs therein extending down to the etching layer. Sensor structures, such as a bending beam that is used in an acceleration sensor, are created by etching the etching layer beneath a part of the silicon layer structured in this manner.
摘要:
A method and a device for controlling a drive unit of a vehicle are provided in which, starting from the comparison of a first acceleration variable, which is calculated at least from the operating state of the drive unit, and a second acceleration variable, an error is detected. The second acceleration variable includes a first component, in the direction of the vehicle longitudinal axis, and a second component, perpendicular to the vehicle longitudinal axis.