EP0869519A1 - Moteur planaire magnétique et micro-actionneur magnétique comportant un tel moteur - Google Patents
Moteur planaire magnétique et micro-actionneur magnétique comportant un tel moteur Download PDFInfo
- Publication number
- EP0869519A1 EP0869519A1 EP98400763A EP98400763A EP0869519A1 EP 0869519 A1 EP0869519 A1 EP 0869519A1 EP 98400763 A EP98400763 A EP 98400763A EP 98400763 A EP98400763 A EP 98400763A EP 0869519 A1 EP0869519 A1 EP 0869519A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- magnetic
- substrate
- micro
- support frame
- actuator according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/005—Details of electromagnetic relays using micromechanics
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/005—Details of electromagnetic relays using micromechanics
- H01H2050/007—Relays of the polarised type, e.g. the MEMS relay beam having a preferential magnetisation direction
Definitions
- the present invention relates to a planar motor magnetic as well as a micro-actuator comprising a such engine.
- the invention finds a particularly application advantageous in the field of actuators, such as example micro-valves, micro-relays, micro-motors and more generally all micro-systems having a movement function.
- micro-actuators existing work on the principles of electrostatic, piezoelectric or thermal.
- the field of micro-actuators magnetic remains little exploited.
- micro-actuators existing relay type are not fully satisfactory, especially the currents necessary for actuation are often relatively high by the fact that the number of turns of the coils that make them up is small.
- a first technical problem to be solved by the object of the present invention is to provide a magnetic planar motor which would increase the magnetic force developed while keeping a reasonable surface.
- the solution to this first technical problem consists, according to the present invention, in that said motor planar magnetic has a plurality of poles magnetic ferromagnetic material placed at center of planar coils made up of at least one layer of turns formed on the surface of a substrate made of ferromagnetic material, said turns being wound and connected together so that add the magnetic fluxes generated by said magnetic poles.
- a second technical problem to be solved by the object of the present invention is to provide a micro-actuator magnetic with planar motor magnetic according to the invention, which would have in particular a compact mobile mechanical element in order to reduce the size of the system.
- said magnetic microactuator also includes a mechanical element with movable contact, comprising a support frame placed on said surface of the substrate magnetic through a spacer, a blade flexible arranged substantially parallel to the surface of said substrate and one end of which is fixed said support frame, a material core ferromagnetic carried by said flexible blade, and a movable contact secured to said ferromagnetic core, located next to a fixed contact fitted on the surface of the substrate of said magnetic planar motor.
- a mechanical element with movable contact comprising a support frame placed on said surface of the substrate magnetic through a spacer, a blade flexible arranged substantially parallel to the surface of said substrate and one end of which is fixed said support frame, a material core ferromagnetic carried by said flexible blade, and a movable contact secured to said ferromagnetic core, located next to a fixed contact fitted on the surface of the substrate of said magnetic planar motor.
- the magnetic micro-actuator according to the invention has a number of advantages. On the one hand, it constitutes a miniature and planar device little bulky with the possibility of adding a circuit integrated. On the other hand, the thickness of the spacer allows direct control of the insulation voltage of the micro-actuator acting as a relay. Moreover, the mobile and fixed contacts can be made in thin, integrated layer.
- said spacer is produced by deposition on the substrate surface of the magnetic planar motor of a conductive material, said support frame being attached to said spacer through conductive protrusions.
- the embodiment implements the technology so-called "flip-chip” (flip-chip in English), well known in the field of connector technology semiconductor pads, or “chips”.
- said spacer is made of insulating material and integrated into said support frame, said flexible blade being conductive and electrically connected to the substrate surface of the magnetic planar motor by its end fixed on the support frame.
- FIG. 1 is shown in side view a motor planar magnetic 100 made up of planar coils 110, 120 each comprising four layers of turns, structured on the surface of a ferromagnetic substrate 130.
- Each coil 110, 120 has in its center a magnetic pole 111, 121 made of ferromagnetic material such as ferronickel FeNi.
- This structure is actually a magnetic circuit with air interval.
- the passage of a current through the coils 110, 120 between an input terminal 141 and an output terminal 142 generates a flow 150 in the magnetic circuit which results in a force of attraction at the air gap.
- the circuit magnetic consists of two poles 111, 121 surrounded by coils 110, 120 whose turns are wound and connected together so that add the magnetic fluxes generated by said magnetic poles.
- the coupling of this motor part with an element mobile forms a micro-actuator, for example a valve, relay or levitation motor, etc.
- a micro-actuator for example a valve, relay or levitation motor, etc.
- the Figures 2 and 6 show the special case of production of a mechanical element 200 with movable contact for a micro-relay.
- This structure comprises a support frame 210 which, as shown in Figure 3, is intended to be placed on the surface of the ferromagnetic substrate 130 of the planar motor 100 via a spacer 211.
- the spacer 211 is produced by depositing on the surface of the substrate 130 a conductive material.
- the height of the spacer 211 allows to control the air gap between the contact fixed 150 fitted on the surface of the planar motor 100 and a movable contact 220 integral with a core ferromagnetic 230, in FeNi for example, carried by a flexible blade 240 which must be made of a material ferromagnetic, for example nickel.
- An extremity of said flexible blade 240 is fixed to the support frame 210 and acts as a fixed point for the arm of lever constituted by the blade 240.
- the support frame 210 is surmounted by a substrate 260, which can be made of silicon when it is intended to accommodate a integrated circuit.
- the substrate 260 can, depending on the applications, be a transparent (glass) or ferromagnetic material (FeNi or FeSi).
- ferromagnetic material as a substrate shielding of the two parts of the motor and actuator magnetic device is assured.
- substrates can serve as connection terminals electric.
- said support frame 210 is attached to the spacer 211 via protuberances conductive 250 according to the "chip” method inverted “or” flip-chip “.
- Assembly can be done by welding or gluing techniques, the condition being that this part is electrically conductive so as to make one of the contacts of the micro-relay on the other part.
- this assembly positioned all around the device allows to isolate the contact of the micro-relay, to create a sealed cavity in which the atmosphere and the pressure are controlled. There is therefore no need to provide a cover, this part integral to the system due to the assembly by protuberances.
- the electrical contact is done, not through contacts individuals but through the poles magnetic 111 and 121.
- the connections with the outside are done through ferromagnetic substrates.
- Figures 4 and 5 show a variant of realization of the mechanical element with movable contact obtained from a thin ferromagnetic substrate on which is structured a spacer 311 made of insulating material as well as the flexible metal blade 340 carrying movable contacts 320.
- a spacer 311 made of insulating material as well as the flexible metal blade 340 carrying movable contacts 320.
- the electrical continuity between contacts 150 and 320 of the micro-relay is provided by the fact that the flexible conductive blade 340 is electrically connected to the surface of the substrate 130 of the magnetic planar motor 100 by its fixed end to the support frame 310.
- relay control can be obtained by current continuous applied to planar coils 110, 120 or by magnetic induction produced by a magnet permanent.
- the use of permanent magnets, or of a locally magnetizable material by means of a coil can be provided to make the system bistable; that is to say having a stable state in activated position and a stable state in position rest.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Micromachines (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
Description
- la figure 1 est une vue de côté d'un moteur planaire magnétique conforme à l'invention;
- la figure 2 est une vue de côté d'un premier mode de réalisation d'un élément mobile d'un micro-actionneur de l'invention;
- la figure 3 est une vue de côté d'un micro-actionneur comportant l'élément mobile de la figure 2 associé au moteur planaire magnétique de la figure 1;
- la figure 4 est une vue de côté d'un deuxième mode de réalisation d'un élément mobile d'un micro-actionneur de l'invention;
- la figure 5 est une vue de côté d'un micro-actionneur comportant l'élément mobile de la figure 4 associé au moteur planaire magnétique de la figure 1;
- la figure 6 est une vue en perspective d'un élément mobile muni d'une membrane déformable de compensation de surépaisseur.
- une bonne fermeture de contact électrique grâce à un transfert de la force magnétique générée par le circuit magnétique;
- une bonne efficacité de circuit magnétique par le fait que l'intervalle d'air est maintenu minimum, et par conséquent, la force magnétique générée est maximale.
Claims (10)
- Moteur planaire magnétique (100), caractérisé en ce qu'il comporte une pluralité de pôles magnétiques (111, 121) en matériau ferromagnétique placés au centre de bobines planaires (110, 120) constituées d'au moins une couche de spires réalisées en surface d'un substrat (150) en matériau ferromagnétique, lesdites spires étant bobinées et connectées entre elles de manière à combiner les flux magnétiques générés à travers lesdits pôles magnétiques (111, 121).
- Micro-actionneur magnétique comportant un moteur planaire magnétique (100) selon la revendication 1, caractérisé en ce qu'il comprend également un élément mécanique (200; 300) à contact mobile, comportant un cadre-support (210; 310) placé sur ladite surface du substrat ferromagnétique (130) par l'intermédiaire d'un espaceur (211; 311), une lame flexible (240; 340) disposée sensiblement parallèlement à la surface dudit substrat (130) et dont une extrémité est fixée audit cadre-support (210; 310), un noyau (230; 330) en matériau ferromagnétique porté par ladite lame flexible (240; 340), et un contact mobile (220; 320) solidaire dudit noyau ferromagnétique (230; 330), situé en regard d'un contact fixe (150) aménagé sur la surface du substrat (130) dudit moteur planaire magnétique (100).
- Micro-actionneur magnétique selon la revendication 2, caractérisé en ce que le cadre-support (210, 310) est surmonté d'un substrat (260).
- Micro-actionneur magnétique selon la revendication 3, caractérisé en ce que les deux substrats (130, 260) sont en matériau ferromagnétique.
- Micro-actionneur magnétique selon la revendication 2, 3 ou 4, caractérisé en ce que ledit espaceur (211) est réalisé par dépôt à la surface du substrat (130) du moteur planaire magnétique (100) d'un matériau conducteur, ledit cadre-support (210) étant rapporté sur ledit espaceur (211) par l'intermédiaire de protubérances conductrices (250).
- Micro-actionneur magnétique selon la revendication 4, caractérisé en ce que les pôles magnétiques (111, 121) sont utilisés comme contacts électriques et sont connectés à l'extérieur par l'intermédiaire des substrats ferromagnétiques.
- Micro-actionneur magnétique selon la revendication 5, caractérisé en ce que ledit espaceur (311) est en matériau isolant et intégré audit cadre-support (310), ladite lame flexible (340) étant conductrice et électriquement reliée à la surface du substrat (130) du moteur planaire magnétique (100) par son extrémité fixée sur le cadre-support (310).
- Micro-actionneur magnétique selon l'une quelconque des revendications 2 à 7, caractérisé en ce que ledit contact mobile (220) dudit élément mécanique (200) est placé sur une membrane déformable (270).
- Micro-actionneur magnétique selon l'une quelconque des revendications 2 à 8, caractérisé en ce qu'il est commandé par un courant continu appliqué auxdites bobines planaires (110, 120).
- Micro-actionneur magnétique selon l'une quelconque des revendications 2 à 8, caractérisé en ce qu'il est commandé par l'induction magnétique produite par un aimant permanent.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9703961 | 1997-04-01 | ||
FR9703961A FR2761518B1 (fr) | 1997-04-01 | 1997-04-01 | Moteur planaire magnetique et micro-actionneur magnetique comportant un tel moteur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0869519A1 true EP0869519A1 (fr) | 1998-10-07 |
EP0869519B1 EP0869519B1 (fr) | 2002-02-20 |
Family
ID=9505400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98400763A Expired - Lifetime EP0869519B1 (fr) | 1997-04-01 | 1998-03-31 | Moteur planaire magnétique et micro-actionneur magnétique comportant un tel moteur |
Country Status (4)
Country | Link |
---|---|
US (1) | US6084281A (fr) |
EP (1) | EP0869519B1 (fr) |
DE (1) | DE69803893T2 (fr) |
FR (1) | FR2761518B1 (fr) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001057899A1 (fr) * | 2000-02-02 | 2001-08-09 | Arizona State University | Relais micromagnetique electronique a verrouillage de commutation et procede de fonctionnement de ce relais |
US6496612B1 (en) | 1999-09-23 | 2002-12-17 | Arizona State University | Electronically latching micro-magnetic switches and method of operating same |
EP1399939A1 (fr) * | 2001-05-18 | 2004-03-24 | Microlab, Inc. | Boitier pour commutateur de verrouillage micromagnetique |
EP1437036A1 (fr) * | 2001-09-17 | 2004-07-14 | John Stafford | Boitiers de relais a verrouillage micromagnetiques et procedes d'encapsulation associes |
US6794965B2 (en) | 2001-01-18 | 2004-09-21 | Arizona State University | Micro-magnetic latching switch with relaxed permanent magnet alignment requirements |
US6836194B2 (en) | 2001-12-21 | 2004-12-28 | Magfusion, Inc. | Components implemented using latching micro-magnetic switches |
US7027682B2 (en) | 1999-09-23 | 2006-04-11 | Arizona State University | Optical MEMS switching array with embedded beam-confining channels and method of operating same |
US7183884B2 (en) | 2003-10-15 | 2007-02-27 | Schneider Electric Industries Sas | Micro magnetic non-latching switches and methods of making same |
US7202765B2 (en) | 2003-05-14 | 2007-04-10 | Schneider Electric Industries Sas | Latchable, magnetically actuated, ground plane-isolated radio frequency microswitch |
US7250838B2 (en) | 2002-01-08 | 2007-07-31 | Schneider Electric Industries Sas | Packaging of a micro-magnetic switch with a patterned permanent magnet |
US7253710B2 (en) | 2001-12-21 | 2007-08-07 | Schneider Electric Industries Sas | Latching micro-magnetic switch array |
US7266867B2 (en) | 2002-09-18 | 2007-09-11 | Schneider Electric Industries Sas | Method for laminating electro-mechanical structures |
US7300815B2 (en) | 2002-09-30 | 2007-11-27 | Schneider Electric Industries Sas | Method for fabricating a gold contact on a microswitch |
US7327211B2 (en) | 2002-01-18 | 2008-02-05 | Schneider Electric Industries Sas | Micro-magnetic latching switches with a three-dimensional solenoid coil |
US7342473B2 (en) | 2004-04-07 | 2008-03-11 | Schneider Electric Industries Sas | Method and apparatus for reducing cantilever stress in magnetically actuated relays |
US7391290B2 (en) | 2003-10-15 | 2008-06-24 | Schneider Electric Industries Sas | Micro magnetic latching switches and methods of making same |
US7420447B2 (en) | 2002-03-18 | 2008-09-02 | Schneider Electric Industries Sas | Latching micro-magnetic switch with improved thermal reliability |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3714020B2 (ja) * | 1999-04-20 | 2005-11-09 | オムロン株式会社 | 半導体素子の密封構造 |
TWI248718B (en) * | 1999-09-02 | 2006-02-01 | Koninkl Philips Electronics Nv | Displacement device |
US6806610B2 (en) * | 2001-02-27 | 2004-10-19 | Monte Dilliner | Magnetic motor with movable rotor and drive magnets |
US20020196110A1 (en) * | 2001-05-29 | 2002-12-26 | Microlab, Inc. | Reconfigurable power transistor using latching micromagnetic switches |
US20030179058A1 (en) * | 2002-01-18 | 2003-09-25 | Microlab, Inc. | System and method for routing input signals using single pole single throw and single pole double throw latching micro-magnetic switches |
US7215229B2 (en) * | 2003-09-17 | 2007-05-08 | Schneider Electric Industries Sas | Laminated relays with multiple flexible contacts |
US7557470B2 (en) * | 2005-01-18 | 2009-07-07 | Massachusetts Institute Of Technology | 6-axis electromagnetically-actuated meso-scale nanopositioner |
US9284183B2 (en) | 2005-03-04 | 2016-03-15 | Ht Microanalytical, Inc. | Method for forming normally closed micromechanical device comprising a laterally movable element |
US7482899B2 (en) * | 2005-10-02 | 2009-01-27 | Jun Shen | Electromechanical latching relay and method of operating same |
WO2009001848A1 (fr) * | 2007-06-26 | 2008-12-31 | Panasonic Electric Works Co., Ltd. | Micro-relais |
US8665041B2 (en) * | 2008-03-20 | 2014-03-04 | Ht Microanalytical, Inc. | Integrated microminiature relay |
US8068002B2 (en) * | 2008-04-22 | 2011-11-29 | Magvention (Suzhou), Ltd. | Coupled electromechanical relay and method of operating same |
US8836454B2 (en) * | 2009-08-11 | 2014-09-16 | Telepath Networks, Inc. | Miniature magnetic switch structures |
US8159320B2 (en) | 2009-09-14 | 2012-04-17 | Meichun Ruan | Latching micro-magnetic relay and method of operating same |
US8436701B2 (en) | 2010-02-08 | 2013-05-07 | International Business Machines Corporation | Integrated electromechanical relays |
US8432240B2 (en) | 2010-07-16 | 2013-04-30 | Telepath Networks, Inc. | Miniature magnetic switch structures |
US8957747B2 (en) * | 2010-10-27 | 2015-02-17 | Telepath Networks, Inc. | Multi integrated switching device structures |
KR20130109166A (ko) * | 2010-10-29 | 2013-10-07 | 더 리젠츠 오브 더 유니버시티 오브 캘리포니아 | 자기적으로 작동되는 라미네이트 내 마이크로 전자 기계 커패시터 스위치 |
US8847715B2 (en) | 2011-09-30 | 2014-09-30 | Telepath Networks, Inc. | Multi integrated switching device structures |
US8552824B1 (en) * | 2012-04-03 | 2013-10-08 | Hamilton Sundstrand Corporation | Integrated planar electromechanical contactors |
WO2013184223A1 (fr) * | 2012-06-05 | 2013-12-12 | The Regents Of The University Of California | Commutateurs verrouillés actionnés de manière micro-électromagnétique |
US10145906B2 (en) | 2015-12-17 | 2018-12-04 | Analog Devices Global | Devices, systems and methods including magnetic structures |
US10190702B2 (en) * | 2016-03-15 | 2019-01-29 | Dunan Microstaq, Inc. | MEMS based solenoid valve |
Citations (3)
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EP0573267A1 (fr) * | 1992-06-01 | 1993-12-08 | SHARP Corporation | Micro-relais et procédé pour sa fabrication |
US5472539A (en) * | 1994-06-06 | 1995-12-05 | General Electric Company | Methods for forming and positioning moldable permanent magnets on electromagnetically actuated microfabricated components |
US5475353A (en) * | 1994-09-30 | 1995-12-12 | General Electric Company | Micromachined electromagnetic switch with fixed on and off positions using three magnets |
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GB2101404B (en) * | 1981-07-02 | 1984-11-28 | Standard Telephones Cables Ltd | Semiconductor switch device |
FR2659178B1 (fr) * | 1990-03-02 | 1992-05-15 | Ebauchesfabrik Eta Ag | Ensemble de bobines d'excitation, procede de fabrication d'un tel ensemble et micromoteur electromagnetique equipe de celui-ci. |
JP2560629B2 (ja) * | 1993-12-08 | 1996-12-04 | 日本電気株式会社 | シリコン超小形リレー |
FR2742917B1 (fr) * | 1995-12-22 | 1998-02-13 | Suisse Electronique Microtech | Dispositif miniature pour executer une fonction predeterminee, notamment microrelais |
-
1997
- 1997-04-01 FR FR9703961A patent/FR2761518B1/fr not_active Expired - Fee Related
-
1998
- 1998-03-31 EP EP98400763A patent/EP0869519B1/fr not_active Expired - Lifetime
- 1998-03-31 DE DE69803893T patent/DE69803893T2/de not_active Expired - Fee Related
- 1998-04-01 US US09/052,980 patent/US6084281A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0573267A1 (fr) * | 1992-06-01 | 1993-12-08 | SHARP Corporation | Micro-relais et procédé pour sa fabrication |
US5472539A (en) * | 1994-06-06 | 1995-12-05 | General Electric Company | Methods for forming and positioning moldable permanent magnets on electromagnetically actuated microfabricated components |
US5475353A (en) * | 1994-09-30 | 1995-12-12 | General Electric Company | Micromachined electromagnetic switch with fixed on and off positions using three magnets |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6469602B2 (en) | 1999-09-23 | 2002-10-22 | Arizona State University | Electronically switching latching micro-magnetic relay and method of operating same |
US6469603B1 (en) | 1999-09-23 | 2002-10-22 | Arizona State University | Electronically switching latching micro-magnetic relay and method of operating same |
US6496612B1 (en) | 1999-09-23 | 2002-12-17 | Arizona State University | Electronically latching micro-magnetic switches and method of operating same |
US6633212B1 (en) | 1999-09-23 | 2003-10-14 | Arizona State University | Electronically latching micro-magnetic switches and method of operating same |
US7027682B2 (en) | 1999-09-23 | 2006-04-11 | Arizona State University | Optical MEMS switching array with embedded beam-confining channels and method of operating same |
US7071431B2 (en) | 1999-09-23 | 2006-07-04 | Arizona State University | Electronically latching micro-magnetic switches and method of operating same |
WO2001057899A1 (fr) * | 2000-02-02 | 2001-08-09 | Arizona State University | Relais micromagnetique electronique a verrouillage de commutation et procede de fonctionnement de ce relais |
US6794965B2 (en) | 2001-01-18 | 2004-09-21 | Arizona State University | Micro-magnetic latching switch with relaxed permanent magnet alignment requirements |
EP1399939A4 (fr) * | 2001-05-18 | 2006-11-15 | Microlab Inc | Boitier pour commutateur de verrouillage micromagnetique |
EP1399939A1 (fr) * | 2001-05-18 | 2004-03-24 | Microlab, Inc. | Boitier pour commutateur de verrouillage micromagnetique |
US7372349B2 (en) | 2001-05-18 | 2008-05-13 | Schneider Electric Industries Sas | Apparatus utilizing latching micromagnetic switches |
US6894592B2 (en) | 2001-05-18 | 2005-05-17 | Magfusion, Inc. | Micromagnetic latching switch packaging |
EP1437036A1 (fr) * | 2001-09-17 | 2004-07-14 | John Stafford | Boitiers de relais a verrouillage micromagnetiques et procedes d'encapsulation associes |
EP1437036A4 (fr) * | 2001-09-17 | 2006-11-15 | John Stafford | Boitiers de relais a verrouillage micromagnetiques et procedes d'encapsulation associes |
US7253710B2 (en) | 2001-12-21 | 2007-08-07 | Schneider Electric Industries Sas | Latching micro-magnetic switch array |
US6836194B2 (en) | 2001-12-21 | 2004-12-28 | Magfusion, Inc. | Components implemented using latching micro-magnetic switches |
US7250838B2 (en) | 2002-01-08 | 2007-07-31 | Schneider Electric Industries Sas | Packaging of a micro-magnetic switch with a patterned permanent magnet |
US7327211B2 (en) | 2002-01-18 | 2008-02-05 | Schneider Electric Industries Sas | Micro-magnetic latching switches with a three-dimensional solenoid coil |
US7420447B2 (en) | 2002-03-18 | 2008-09-02 | Schneider Electric Industries Sas | Latching micro-magnetic switch with improved thermal reliability |
US7266867B2 (en) | 2002-09-18 | 2007-09-11 | Schneider Electric Industries Sas | Method for laminating electro-mechanical structures |
US7300815B2 (en) | 2002-09-30 | 2007-11-27 | Schneider Electric Industries Sas | Method for fabricating a gold contact on a microswitch |
US7202765B2 (en) | 2003-05-14 | 2007-04-10 | Schneider Electric Industries Sas | Latchable, magnetically actuated, ground plane-isolated radio frequency microswitch |
US7183884B2 (en) | 2003-10-15 | 2007-02-27 | Schneider Electric Industries Sas | Micro magnetic non-latching switches and methods of making same |
US7391290B2 (en) | 2003-10-15 | 2008-06-24 | Schneider Electric Industries Sas | Micro magnetic latching switches and methods of making same |
US7342473B2 (en) | 2004-04-07 | 2008-03-11 | Schneider Electric Industries Sas | Method and apparatus for reducing cantilever stress in magnetically actuated relays |
Also Published As
Publication number | Publication date |
---|---|
EP0869519B1 (fr) | 2002-02-20 |
FR2761518A1 (fr) | 1998-10-02 |
DE69803893T2 (de) | 2002-10-10 |
US6084281A (en) | 2000-07-04 |
DE69803893D1 (de) | 2002-03-28 |
FR2761518B1 (fr) | 1999-05-28 |
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