WO2006077600A3 - A micro-machined magnetic switch - Google Patents

A micro-machined magnetic switch Download PDF

Info

Publication number
WO2006077600A3
WO2006077600A3 PCT/IL2006/000095 IL2006000095W WO2006077600A3 WO 2006077600 A3 WO2006077600 A3 WO 2006077600A3 IL 2006000095 W IL2006000095 W IL 2006000095W WO 2006077600 A3 WO2006077600 A3 WO 2006077600A3
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic flux
magnetic
micro
switch
machined
Prior art date
Application number
PCT/IL2006/000095
Other languages
French (fr)
Other versions
WO2006077600A2 (en
Inventor
Amikam Nemirovsky
Elena Sidorov
Shmuel Kaldor
Claudio Jakobson
Shai Feldman
Original Assignee
Bluebird Optical Mems Ltd
Amikam Nemirovsky
Elena Sidorov
Shmuel Kaldor
Claudio Jakobson
Shai Feldman
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bluebird Optical Mems Ltd, Amikam Nemirovsky, Elena Sidorov, Shmuel Kaldor, Claudio Jakobson, Shai Feldman filed Critical Bluebird Optical Mems Ltd
Publication of WO2006077600A2 publication Critical patent/WO2006077600A2/en
Publication of WO2006077600A3 publication Critical patent/WO2006077600A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H2001/0005—Redundant contact pairs in one switch for safety reasons
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
    • H01H2001/0052—Special contact materials used for MEMS
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/0036—Switches making use of microelectromechanical systems [MEMS]
    • H01H2001/0078—Switches making use of microelectromechanical systems [MEMS] with parallel movement of the movable contact relative to the substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H36/00—Switches actuated by change of magnetic field or of electric field, e.g. by change of relative position of magnet and switch, by shielding
    • H01H2036/0093—Micromechanical switches actuated by a change of the magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Micromachines (AREA)
  • Electromagnets (AREA)

Abstract

A micro-machined magnetic switch that operates under a magnetic force to close. A single-pole single-touch (SPST) implementation as well as a single-pole double-touch (SPDT) are shown. The micro-machined switch is designed to allow for enhanced magnetic flux, for achieving higher magnetic switching force, while maintaining the flexibility of the moving beam of the switch. In particular the moving beam provides for separate spring like action on one magnetic flux path and an additional, relatively significant, magnetic flux on another path, such that both of the fluxes contribute to the switching force. In one embodiment of the disclosed invention an oversized ferromagnetic magnetic flux collector(144), which is monolithically produced with a flexible beam (142) and is made by deposition of a ferromagnetic material, is used to direct the magnetic flux, for the purpose of providing sufficient force to enable the moving beam's motion for the purpose of closing an electrical path.
PCT/IL2006/000095 2005-01-24 2006-01-24 A micro-machined magnetic switch WO2006077600A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64623205P 2005-01-24 2005-01-24
US60/646,232 2005-01-24

Publications (2)

Publication Number Publication Date
WO2006077600A2 WO2006077600A2 (en) 2006-07-27
WO2006077600A3 true WO2006077600A3 (en) 2006-12-07

Family

ID=36692631

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2006/000095 WO2006077600A2 (en) 2005-01-24 2006-01-24 A micro-machined magnetic switch

Country Status (1)

Country Link
WO (1) WO2006077600A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2458484B (en) 2008-03-19 2011-12-28 Ds Smith Plastics Ltd A dolly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040061579A1 (en) * 2002-09-30 2004-04-01 Nelson Richard D. Microelectromechanical device having an active opening switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040061579A1 (en) * 2002-09-30 2004-04-01 Nelson Richard D. Microelectromechanical device having an active opening switch

Also Published As

Publication number Publication date
WO2006077600A2 (en) 2006-07-27

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Legal Events

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121 Ep: the epo has been informed by wipo that ep was designated in this application
32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 14.01.08)

122 Ep: pct application non-entry in european phase

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