Abstract:
The present invention relates to a design and microfabrication method for microgrippers that are capable of grasping micro and nano objects of a large range of sizes and two-axis force sensing capabilities. Gripping motion is produced by one or more electrothermal actuators. Integrated force sensors along x and y directions enable the measurement of gripping forces as well as the forces applied at the end of microgripper arms along the normal direction, both with a resolution down to nanoNewton. The microfabrication method enables monolithic integration of the actuators and the force sensors.
Abstract:
An integrated sensor device is provided. The integrated sensor device comprises a first substrate including a surface portion and a second substrate coupled to the surface portion of the first substrate in a stacked configuration, wherein a cavity is defined between the first substrate and the second substrate. The integrated sensor device also comprises one or more micro-electro-mechanical systems (MEMS) sensors located at least partially in the first substrate, wherein the MEMS sensor communicates with the cavity. The integrated sensor device further comprises one or more additional sensors.
Abstract:
A laser rangefinder includes a laser emitter for emitting parallel laser beams, a micro electro mechanical system reflector including a plurality of micro reflecting units and configured for reflecting the parallel laser beams toward different points on an object, a micro electro mechanical system photoreceiver configured for receiving the laser beams reflected by and from the different points on the object, a time interval counter configured for recording the time intervals between a first time when the laser emitter emitting the parallel laser beams and second times when the laser beams are received by the micro electro mechanical system photoreceiver, and a processor configured for calculating the distances to the different points of the object based on the time intervals.
Abstract:
A capacitance type MEMS sensor has a first electrode portion and a second electrode portion facing each other. The sensor includes a semiconductor substrate having a recess dug in a thickness direction of the semiconductor substrate, the recess having sidewalls, one of which serves as the first electrode portion. The sensor further includes a diaphragm serving as the second electrode portion, the diaphragm arranged within the recess to face the first electrode portion in a posture extending along a depth direction of the recess, the diaphragm having a lower edge spaced apart from the bottom surface of the recess, and is made of the same material as the semiconductor substrate. The sensor further includes an insulating film arranged to join the diaphragm to the semiconductor substrate.
Abstract:
An MEMS sensor includes: a functional layer having a sensor section; a wiring substrate disposed facing the functional layer and having a conduction pathway for the sensor section; a first metal layer provided on the surface of the sensor section which faces the wiring substrate; and a second metal layer provided on the surface of the wiring substrate which faces the sensor section, wherein the first and second metal layers are joined to each other, a space is formed between a movable portion of the sensor section and the wiring substrate, and a stopper which is composed of a third metal layer being the same film as the first metal layer formed on the functional layer side and a contact portion formed on the wiring substrate side which come into contact with each other is formed between the functional layer and the wiring substrate.
Abstract:
The invention concerns a nanowire structural element which is suited for implementation in, for example, a microreactor system or microcatalyzer system.For the production of the nanowire structural element, a template based process is used wherein the electrochemical deposition of the nanowires in nanopores is ideally carried out at least until caps are formed and said caps ideally are at least partially merged together. After reinforcing the two cover layers the structured hollow chamber between the two cover layers is cleared by dissolving the template foil and removing the dissolved template material, wherein the two cover layers remain intact. In this manner, a stable sandwich-like nanostructure is constructed with a two-dimensional hollow chamber-like structure in the plane parallel to the cover layers contained on both sides by the cover layers and permeated in a column-like manner with nanowires.
Abstract:
An integrated circuit that senses a phenomenon, such as a magnetic field, may be mounted upside down on a carrier substrate so that the electrical connections to the integrated sensor circuit may be made on the side facing the carrier. This eliminates the need for wirebonds on the side of the sensor integrated circuit that faces the phenomenon being sensed, thereby substantially eliminating any uneven topography on that side. The sensor integrated circuit is able to sense the phenomenon by sensing it through the body of the sensor integrated circuit. The body of the sensor integrated circuit may have a thickness within a vicinity of fifty microns.
Abstract:
Force, pressure, or stiffness measurement or calibration can be provided, such as by using a graphene or other sheet membrane, which can provide a specified number of monolayers suspended over a substantially circular well. In an example, the apparatus can include a substrate, including a substantially circular well. A deformable sheet membrane can be suspended over the well. The membrane can be configured to include a specified integer number of one or more monolayers. A storage medium can comprise accompanying information about the suspended membrane or the substrate that, with a deflection displacement response of the suspended membrane to an applied force or pressure, provides a measurement of the applied force or pressure.
Abstract:
A universal microelectromechanical MEMS nano-sensor platform having a substrate and conductive layer deposited in a pattern on the surface to make several devices at the same time, a patterned insulation layer, wherein the insulation layer is configured to expose one or more portions of the conductive layer, and one or more functionalization layers deposited on the exposed portions of the conductive layer. The functionalization layers are adapted to provide one or more transducer sensor classes selected from the group consisting of: radiant, electrochemical, electronic, mechanical, magnetic, and thermal sensors for chemical and physical variables.
Abstract:
In a micromechanical sensor (11) for measuring a mass flow rate in accordance with the Coriolis principle, two line sections (13) are mounted in a suspension means (24) such that they can oscillate, as a result of which they can be caused to oscillate in phase opposition (essential for the measuring principle). A spacer layer (18) is provided between the layers (12a, 12b) forming the line sections (13), the spacer layer ensuring that there is a space between the line sections (13) in the quiescent state. Oscillation of the line sections in phase opposition only becomes possible at all as a result of this since this prevents collision of the line sections (13) as they approach one another.