Abstract:
Methods of fabrication of electronic modules comprise, on the one hand, power electronic components fabricated on a substrate made of gallium nitride (GaN) and, on the other hand, micro-switches using electrostatic activation of the MEMS (Micro Electro Mechanical System) type. The electronic components and the micro-switches are fabricated on a single gallium nitride substrate and the fabrication method comprises at least the following steps: fabrication of the power components on the gallium nitride substrate; deposition of a first common passivation layer on said components and on the substrate; fabrication of the micro-switches on said substrate.
Abstract:
Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and design structures are provided. The method of forming a MEMS structure includes forming fixed actuator electrodes and a contact point on a substrate. The method further includes forming a MEMS beam over the fixed actuator electrodes and the contact point. The method further includes forming an array of actuator electrodes in alignment with portions of the fixed actuator electrodes, which are sized and dimensioned to prevent the MEMS beam from collapsing on the fixed actuator electrodes after repeating cycling. The array of actuator electrodes are formed in direct contact with at least one of an underside of the MEMS beam and a surface of the fixed actuator electrodes.
Abstract:
Micro-Electro-Mechanical System (MEMS) structures, methods of manufacture and design structures are provided. The method of forming a MEMS structure includes forming a wiring layer on a substrate comprising actuator electrodes and a contact electrode. The method further includes forming a MEMS beam above the wiring layer. The method further includes forming at least one spring attached to at least one end of the MEMS beam. The method further includes forming an array of mini-bumps between the wiring layer and the MEMS beam.
Abstract:
An example of the present invention is a micromechanical device including, a substrate in which a signal line is provided, a micromachine which is mounted on the substrate, is formed of a conductive material into a beam-like shape, is elastically deformed by a function of an electric field in such a manner that the beam-like part moves closer to or apart from the signal line, and changes the electric characteristics concomitantly with the deformation, a deformation restraint section constituted of a material having a higher viscosity coefficient than the conductive material, provided on the opposite side of the micromachine to the signal line, for restraining deformation of the micromachine in a direction in which the micromachine is separated from the signal line, and a sealing body provided on the principal surface of the substrate, for covering the micromachine with a hollow section located therebetween.
Abstract:
Packaging systems and methods of manufacture are provided. In this regard, a representative system comprises a first layer of liquid crystal polymer (LCP), a first electronic component supported by the first layer, and a second layer of LCP. The first layer and the second layer encase the first electronic component.
Abstract:
A micro movable device includes a protection cap for protecting a movable unit arranged above a semiconductor substrate and the movable unit, signal line for transmitting a high-frequency signal formed above the semiconductor substrate, and insulation layer that has projection formed to project upward from the semiconductor substrate and coated surfaces with the signal line.
Abstract:
A semiconductor actuator includes a substrate base, a bending structure which is connected to the substrate base and can be deflected at least partially relative to the substrate base. The bending structure has semiconductor compounds on the basis of nitrides of main group III elements and at least two electrical supply contacts which impress an electrical current in or for applying an electrical voltage to the bending structure. At least two of the supply contacts are disposed at a spacing from each other respectively on the bending structure and/or integrated in the latter.
Abstract:
A device 20 includes a substrate 22 coupled with a substrate 24 such that a volume 32 is formed between the substrates 22, 24. Contact posts 48, 50 on the substrate 22 and a cantilever beam structure 36 on the substrate 24 are located within the volume 32. The cantilever beam structure has a conductive trace 38 that is selectively contactable with the contact posts 48, 50 to yield a microelectromechanical (MEMS) switch within the volume 32. Fabrication methodology for making the contact posts 48, 50 entails forming post protrusions 68, 70 on the substrate 22 and shaping post protrusions 68, 70 so that they acquire a rounded shape. Input and output signal lines 42, 44 are constructed such that respective portions of input and output signal lines 42, 44 overly corresponding post protrusions 68, 70 and take on the shape of post protrusions 68, 70.
Abstract:
An RF MEMS switch having asymmetrical spring rigidity. The RF MEMS switch has supporting members spaced apart in a certain interval on a substrate, a membrane being a motion member suspended by plural spring members extended on both sides of the membrane, and a bottom electrode being a contact surface on an upper surface of the substrate facing a bottom surface of the membrane, wherein the plural spring members placed on opposite sides of the membrane have asymmetrical rigidity, and a portion of the membrane on a side of stronger spring rigidity is first separated from the contact surface when the RF MEMS switch is turned off. The present invention has an advantage of easy separation of the switch from the contact surface, when the switch is turned off, due to the different rigidity of the springs located on the sides of the membrane.
Abstract:
A process for making microswitches or microvalves, composed of a substrate and used for shifting between a first state of functioning and a second state of functioning by means of a bimetal-effect thermal sensor. The sensor includes a deformable element attached, at opposite ends, to the substrate so that there is a natural deflection without stress with respect to a surface of the substrate opposite it, this natural deflection determining the first state of functioning, the second state of functioning being caused by the thermal sensor which, under the influence of temperature variation, induces a deformation of the deformable element which diminishes the deflection by subjecting it to a compressive force which shifts it in a direction opposite to its natural deflection by buckling.