摘要:
A method for providing improved gettering in a vacuum encapsulated device is described The method includes forming a plurality of small indentation features in a device cavity formed in a lid wafer. The gettering material is then deposited over the indentation features. The indentation features increase the surface area of the getter material, thereby increasing the volume of gas that the getter material can absorb. This may improve the vacuum maintained within the vacuum cavity over the lifetime of the vacuum encapsulated device.
摘要:
Systems and methods for forming an encapsulated device include a hermetic seal which seals an insulating environment between two substrates, one of which supports the device. The hermetic seal is formed by an alloy of two metal layers, one deposited on a first substrate and the other deposited on the second substrate, along with a raised feature formed on the first or the second substrate. At least one of the metal layers may be deposited conformally over the raised feature. The raised feature penetrates the molten material of the first or the second metal layers during formation of the alloy, and produces a spectrum of stoichiometries for the formation of the desired alloy, as a function of the distance from the raised feature. At some distance from the raised feature, the proper ratio of the first metal to the second metal exists to form an alloy of the preferred stoichiometry.
摘要:
Systems and methods for forming an encapsulated MEMS device include a hermetic seal which seals an insulating gas between two substrates, one of which supports the MEMS device. The hermetic seal may be formed by heating at least two metal layers, in order to melt at least one of the metal layers. The first melted metal material flows into and forms an alloy with a second metal material, forming a hermetic seal which encapsulates the MEMS device.
摘要:
The invention describes a method and apparatus for deploying micromachined actuators in a plane which is orthogonal to the original fabrication plane of the devices. Using batch-processing, photolithographic procedures known in the micromachined electromechanical system (MEMS) art, a plurality of devices is constructed on a suitable substrate. The devices are then separated one from another by sawing and dicing the original fabrication wafer. The devices are rotated into an orthogonal orientation and affixed to a second wafer. The second wafer also contains circuitry for addressing and manipulating each of the devices independently of the others. With this method and apparatus, arrays of actuators are constructed whose plane of actuation is perpendicular to the plane of the array. This invention is useful for constructing N×M fiber optic switches, which direct light from N input fibers into M output fibers.
摘要:
A MEMS thermal switch is disclosed which couples a hot, expanding beam to a cool flexor beam using a slideably engaged tether, and bends the cool, flexor beam by the expansion of the hot beam. A rigidly engaged tether ties the distal ends of the hot, expanding beam and the cool, flexor beam together, whereas the slideably engaged tether allows the hot, expanding beam to elongate with respect to the cool, flexor beam, without loading the slideably engaged tether with a large shear force. As a result, the material of the tether can be made stiffer, and therefore transmit the bending force of the hot, expanding beam more efficiently to the cool, flexor beam.
摘要:
The invention describes a method and apparatus for deploying micromachined actuators in a plane which is orthogonal to the original fabrication plane of the devices. Using batch-processing, photolithographic procedures known in the micromachined electro-mechanical system (MEMS) art, a plurality of devices is constructed on a suitable substrate. The devices are then separated one from another by sawing and dicing the original fabrication wafer. The devices are rotated into an orthogonal orientation and affixed to a second wafer. The second wafer also contains circuitry for addressing and manipulating each of the devices independently of the others. With this method and apparatus, arrays of actuators are constructed whose plane of actuation is perpendicular to the plane of the array. This invention is useful for constructing N×M fiber optic switches, which direct light from N input fibers into M output fibers.
摘要:
Apparatuses are disclosed for a small group to drink a potable liquid, such as an alcoholic beverage, or other beverage. A container preferably made of glass, metal, and/or ceramic material, and having an aperture, is provided to accommodate the potable liquid. A substance with a selected temperature is added to the container. A prefilled canister of potable liquid can then be inserted through the aperture so that the canister comes in contact with the first substance, whereby the selected temperature of the substance is allowed to influence the temperature of the canister, and thus the temperature of the potable liquid as well. A dispenser assembly with one or more hoses, pumps, and mouthpieces are also provided. Each such hose, pump, and mouthpiece facilitates a corresponding consumer in consuming the potable liquid. In a preferred embodiment, the pump dispenses a predetermined volume of the beverage to the consumer in a controlled unidirectional flow.
摘要:
A hermetic interconnect is fabricated on a substrate by forming a stud of conductive material over a metallization layer, and then overcoating the stud of conductive material and the metallization layer with a layer of compliant dielectric material. In one embodiment, the layer of compliant dielectric material is low Young's modulus silicon dioxide, formed by sputter-deposition at low temperature, in a low pressure argon atmosphere. The interconnect may provide electrical access to a micromechanical device, which is enclosed with a capping wafer hermetically sealed to the substrate with an AuInx alloy bond.
摘要:
Apparatus are disclosed for a small group to drink a beverage, such as an alcoholic beverage. A container preferably made of glass or ceramic material holds the beverage and includes at least one aperture. A plurality of flexible hoses are provided, each hose of sufficient length for installation extending through the aperture so that a proximal end of each hose is located inside the container to access the beverage and a distal end of each hose is located outside the container for a corresponding use to drink from the container by applying suction. A preferred embodiment also includes a shot pump on the hose to dispense a predetermined volume of the beverage to the user in response to a squeeze and release action.
摘要:
A material for bonding a lid wafer to a device wafer, which includes an adhesive substance with rigid particles embedded in the adhesive substance. The rigid particles may be particles or spheres of alumina, silica, or diamond, for example. The adhesive substance may be glass frit, epoxy, glue, cement or solder, for example. When the adhesive is applied and melted, and pressure is applied between the lid wafer and the device wafer, the lid wafer approaches the device wafer until a minimum separation is reached, which is defined by the rigid particles.