摘要:
A microelectromechanical (MEMS) switch is disclosed. The MEMS switch includes a substrate (205), a plurality of actuation electrodes (230) mounted on the substrate, a plurality of bottom electrodes (210) mounted on the substrate, a capacitor (cl, c2, c3) having subcomponents e.g. dielectric layers (330), mounted on the two or more bottom electrodes (210) and a top bendable electrode (215) mounted on the substrate. The top electrode (215) collapses a first magnitude towards the actuation electrodes (230) whenever a first voltage is applied to one or more of the actuation electrodes (230) and collapses a second magnitude towards the actuation electrodes (230) whenever a second voltage is applied to the actuation electrodes (230).
摘要:
A bi-stable memory element (1) comprises a base contact (3), and a bridging contact (8), both made from an electrically conductive material. The bridging contact (8) is dimensioned so as to have two stable positions, in one of which the bridging contact (8) is in contact with the base contact (3), and in the other of which the bridging contact (8) is spaced apart from the base contact (3). Deflection means (4, 5) deflects the bridging contact (8) from one stable position to the other.
摘要:
A vibration type MEMS switch and a method of fabricating the vibration type MEMS switch. The vibration type MEMS switch includes a vibrating body supplied with an alternating current voltage of a predetermined frequency to vibrate in a predetermined direction; and a stationary contact point spaced apart from the vibrating body along a vibration direction of the vibrating body. When a direct current voltage with a predetermined magnitude is applied to the stationary contact point, a vibration margin of the vibrating body is increased, the vibrating body contacts the stationary contact point and the vibration type MEMS switch is turned on. A first substrate is bonded to a second substrate to isolate the vibrating body in a sealed vacuum space. The vibration type MEMS switch is turned on and/off by a resonance.
摘要:
In methods and circuits for using associated circuitry to enhance performance of a micro-electromechanical switch, one of the method embodiments is a contact conditioning process including applying a time-varying voltage to the control element of a closed switch. In another embodiment, a voltage profile applied to the control element of the switch can be tailored to improve the actuation speed or reliability of the switch. In another method embodiment, the performance of a switch may be evaluated by measuring a performance parameter, and corrective action initiated if the switch performance is determined to need improvement. An embodiment of a circuit for maintaining performance of a micro-electromechanical switch includes first and second signal line nodes, sensing circuitry coupled to the signal line nodes and adapted to sense a performance parameter value of the switch, and control circuitry operably coupled to at least one terminal of the switch.
摘要:
Die vorliegende Erfindung betrifft ein mikromechanisches Relais mit verbesserten Schalteigenschaften, bei dem der Kontaktbügel zur Überbrückung eines Schaltkontaktes beabstandet vom freien Ende eines einseitig eingespannten, mikromechanischen, beweglichen Biegebalkenelementes an diesem angeordnet ist. Beidseitig des Kontaktbügels sind am beweglichen Element Steuerelektroden vorgesehen, die in Zusammenwirkung mit gegenüberliegenden Steuerelektroden am Substrat sowie entsprechenden Steuersignalen das Öffnen und Schließen des Kontaktes bewirken. Sowohl durch die beidseitige Anordnung der Steuerelektrodengebiete als auch die erweiterten und beispielsweise getrennten Ansteuerungsmöglichkeiten der Steuerelektroden beidseitig des Kontaktbügels bzw. der entsprechenden Steuerelektroden am Substrat lässt sich ein verbessertes Schaltverhalten erzielen.
摘要:
The invention relates to an electrostatic microswitch which is intended to connect two strip conductors (4, 5) which are disposed on a support. According to the invention, the two strip conductors are connected by means of a contact pad (6) which is provided on deformable means (3) which are made from an insulating material and which can be deformed in relation to the support under the effect of an electrostatic force generated by control electrodes. The aforementioned contact pad connects the ends (14, 15) of the two strip conductors (4, 5) when the deformable means are sufficiently deformed. Moreover, the control electrodes are distributed over the deformable means and the support in two electrode assemblies, namely: (i) a first assembly of electrodes (101, 102, 33, 53) which is intended to generate a first electrostatic force in order to initiate the deformation of the deformable means, and (ii) a second assembly of electrodes (101, 102, 7, 8) which is intended to generate a second electrostatic force in order to continue the deformation of the deformable means (3), such that the contact pad (6) connects the ends (14, 15) of the two strip conductors.
摘要:
The invention relates to a controlling of micromechanical elements. Especially the invention relates to the controlling of the micromechanical switches. According to a method for controlling at least one micromechanical element a first control signal and a second control signal are fed to the micromechanical element. The second control signal is arranged to set the micromechanical element to an active state and the first control signal is arranged to hold the micromechanical element in the active state. An arrangement for controlling at least one micromechanical element (402) contains at least means for generating at least a first control signal and a second control signal, means for raising a voltage level of at least the second control signal and means for feeding the first control signal and the second control signal with raised voltage level to the micromechanical element. By means of the invention lower voltage levels can be used in micromechanical applications.
摘要:
Die vorliegende Erfindung betrifft ein mikromechanisches Relais mit verbesserten Schalteigenschaften, bei dem der Kontaktbügel zur Überbrückung eines Schaltkontaktes beabstandet vom freien Ende eines einseitig eingespannten, mikromechanischen, beweglichen Biegebalkenelementes an diesem angeordnet ist. Beidseitig des Kontaktbügels sind am beweglichen Element Steuerelektroden vorgesehen, die in Zusammenwirkung mit gegenüberliegenden Steuerelektroden am Substrat sowie entsprechenden Steuersignalen das Öffnen und Schließen des Kontaktes bewirken. Sowohl durch die beidseitige Anordnung der Steuerelektrodengebiete als auch die erweiterten und beispielsweise getrennten Ansteuerungsmöglichkeiten der Steuerelektroden beidseitig des Kontaktbügels bzw. der entsprechenden Steuerelektroden am Substrat lässt sich ein verbessertes Schaltverhalten erzielen.
摘要:
The invention relates to a controlling of micromechanical elements. Especially the invention relates to the controlling of the micromechanical switches. According to a method for controlling at least one micromechanical element a first control signal and a second control signal are fed to the micromechanical element. The second control signal is arranged to set the micromechanical element to an active state and the first control signal is arranged to hold the micromechanical element in the active state. An arrangement for controlling at least one micromechanical element (402) contains at least means for generating at least a first control signal and a second control signal, means for raising a voltage level of at least the second control signal and means for feeding the first control signal and the second control signal with raised voltage level to the micromechanical element. By means of the invention lower voltage levels can be used in micromechanical applications.