DIAPHRAGM ACTIVATED MICRO-ELECTROMECHANICAL SWITCH
    13.
    发明公开
    DIAPHRAGM ACTIVATED MICRO-ELECTROMECHANICAL SWITCH 有权
    MEMBRANAKIVIERTER微机电开关

    公开(公告)号:EP1535297A4

    公开(公告)日:2007-07-18

    申请号:EP02768707

    申请日:2002-08-26

    Applicant: IBM

    CPC classification number: H01H59/0009 H01H2057/006

    Abstract: A micro-electromechanical (MEM) RF switch provided with a deflectable membrane (60) activates a switch contact or plunger (40). The membrane incorporates interdigitated metal electrodes (70) which cause a stress gradient in the membrane when activated by way of a DC electric field. The stress gradient results in a predictable bending or displacement of the membrane (60), and is used to mechanically displace the switch contact (30). An RF gap area (25) located within the cavity (250) is totally segregated from the gaps (71) between the interdigitated metal electrodes (70). The membrane is electrostatically displaced in two opposing directions, thereby aiding to activate and deactivate the switch. The micro-electromechanical switch includes: a cavity (250); at least one conductive path (20) integral to a first surface bordering the cavity; a flexible membrane (60) parallel to the first surface bordering the cavity (250), the flexible membrane (60) having a plurality of actuating electrodes (70); and a plunger (40) attached to the flexible membrane (60) in a direction away from the actuating electrodes (70), the plunger (40) having a conductive surface that makes electric contact with the conductive paths, opening and closing the switch.

    MICRO-ELECTROMECHANICAL SWITCH HAVING A DEFORMABLE ELASTOMERIC CONDUCTIVE ELEMENT
    14.
    发明公开
    MICRO-ELECTROMECHANICAL SWITCH HAVING A DEFORMABLE ELASTOMERIC CONDUCTIVE ELEMENT 审中-公开
    微机电开关,可变形的弹性LEITFüHIGEN元

    公开(公告)号:EP1535296A4

    公开(公告)日:2007-04-04

    申请号:EP02746591

    申请日:2002-06-14

    Applicant: IBM

    CPC classification number: H01H59/0009

    Abstract: A micro-electromechanical switch (MEMS) having a deformable elastomeric element (1) which exhibits a large change in conductivity with a small amount of displacement. The deformable elastomeric element (1) is displaced by an electrostatic force that is applied laterally resulting in a small transverse displacement. The transversal displacement, in turn, pushes a metallic contact (7) against two conductive paths (5, 6), allowing passage of electrical signals. The elastomer (1) is provided on two opposing sids with embedded metallic elements (9, 10), such as impregnated metallic rods, metallic sheets, metallic particles, or conductive paste. Actuation electrodes (18, 8) are placed parallel to the conductive sides of the elastomer. A voltage applied between the conductive side of the elastomer and the respective actuation electrodes (18, 8) generate the electrostatic attractive force that compresses the elastomer (1), creating the transverse displacement that closes the MEMS. The elastomeric based MEMS extends the lifetime of the switch by extending fatigue life of the deformable switch elements.

    Verfahren für ein spontanes Spalling von Material bei niedriger Temperatur

    公开(公告)号:DE112012002305T5

    公开(公告)日:2014-03-13

    申请号:DE112012002305

    申请日:2012-05-08

    Abstract: Es wird ein Verfahren bereitgestellt, um (i) eine zusätzliche Steuerung in einen Prozess für ein Spalling von Material einzubringen, um so sowohl die Initiierung von Rissen als auch die Ausbreitung von Rissen zu verbessern, und um (ii) den Bereich von auswahlbaren Spalling-Tiefen zu vergrößern. In einer Ausführungsform beinhaltet das Verfahren ein Bereitstellen einer Stressorschicht auf einer Oberfläche eines Grundsubstrats bei einer ersten Temperatur, welche die Raumtemperatur ist. Als Nächstes wird das Grundsubstrat, das die Stressorschicht beinhaltet, auf eine zweite Temperatur gebracht, die niedriger als Raumtemperatur ist. Das Grundsubstrat wird bei der zweiten Temperatur abgeplatzt, um eine abgeplatzte Materialschicht zu bilden. Danach wird die abgeplatzte Materialschicht auf Raumtemperatur, d. h. die erste Temperatur, zurückgebracht.

    Low-temperature methods for spontaneous material spalling

    公开(公告)号:GB2503851A

    公开(公告)日:2014-01-08

    申请号:GB201318741

    申请日:2012-05-08

    Applicant: IBM

    Abstract: Method to (i) introduce additional control into a material spalling process, thus improving both the crack initiation and propagation, and (ii) increase the range of selectable spalling depths are provided. In one embodiment, the method includes providing a stressor layer on a surface of a base substrate at a first temperature which is room temperature. Next, the base substrate including the stressor layer is brought to a second temperature which is less than room temperature. The base substrate is spalled at the second temperature to form a spalled material layer. Thereafter, the spalled material layer is returned to room temperature, i.e., the first temperature.

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