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公开(公告)号：JP2003220493A
公开(公告)日：2003-08-05
申请号：JP2002016356
申请日：2002-01-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIN SUNGHO , MAVOORI HAREESH , RAMIREZ AINISSA G
Abstract: PROBLEM TO BE SOLVED: To enable to manufacture an oxidation resistance reactive solder and the solder material in order to obtain excellent joining with high reliability of ceramics and a metal. SOLUTION: A metal composite layer having an inner region and a surface region is formed by actively providing reactive atoms of higher concentration (a 3B group, a 4B group, and rare earth elements or the like) to the surface region compared with the inner region and it is made to be the solder material. 1) An ion implantation method, 2) a clad method, 3) coating by an immersion method, 4) accumulation of the coating layer, and 5) electroplating or the like may be used for the formation of the composite layer. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2001176369A
公开(公告)日：2001-06-29
申请号：JP2000314633
申请日：2000-10-16
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BISHOP DAVID JOHN , JIN SUNGHO , KIM JUNGSANG , RAMIREZ AINISSA G
Abstract: PROBLEM TO BE SOLVED: To provide a drive mechanism that can maintain a switching condition without power consumption. SOLUTION: This device has a movable electrode 12 which has a first electric contact point 20 and a fixed electrode 28 which has a second electric contact point 18. It is composed of a latching magnetic material 14 arranged on one of the movable electrode and the fixed electrode, electric conductors 10 arranged separately from the latching magnetic material, and a second magnetic material 16 arranged on the other of the movable electrode and the fixed electrode separately from the latching magnetic material. By exposing the latching magnetic material 14 to the exterior magnetic field formed by feeding a current into the electric conductors 10, a change in the magnetization direction of the latching magnetic material is caused, and the changed magnetization direction is maintained in the latching magnetic material 14 even after that its exposure to the formed exterior magnetic field has ended.
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公开(公告)号：JP2001158926A
公开(公告)日：2001-06-12
申请号：JP2000316101
申请日：2000-10-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BISHOP DAVID JOHN , JIN SUNGHO , KIM JUNGSANG , RAMIREZ AINISSA G , VAN DOVER R BRUCE
IPC: C22F1/14 , C22C5/00 , C22C5/02 , C22C5/04 , C22C5/06 , C22F1/00 , H01H1/00 , H01H1/023 , H01H1/027
Abstract: PROBLEM TO BE SOLVED: To produce an element having an electric contact formed from an alloy having improved wear resistance. SOLUTION: The alloy is particularly useful for a microrelay formed by an MEMS technique. In one executing mode, sufficient precipitation hardening improves its wear resistance, but, the alloy is selected so as to maintain the electrical conductivity to the level lower than that in which the precipitation is reduced to a degree which is not allowable. As the alloy, at least one among rhodium, platinum, palladium, gold and ruthenium is contained. This is attained by an alloying material which has extremely limited solid solution properties in noble metal lattices, e.g. a solid solution degree lower than 4 wt.% or does not have solid solution properties. In a second executing mode, the alloy contains noble metal lattices 50 and dispersive particles 52 insoluble in the lattices, and these dispersive particles provide similar strengthening mechanisms.
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Patent Agency Ranking
公开(公告)号：CA2323025A1
公开(公告)日：2001-04-15
申请号：CA2323025
申请日：2000-10-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIN SUNGHO , KIM JUNGSANG , BISHOP DAVID JOHN , RAMIREZ AINISSA G
Abstract: An actuation device employing square-loop latchable magnetic material having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field i s created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material is disposed on the mobile electrode of a switching device, and another magnetic material is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface. By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on t he stationary electrode. The resulting relative displacement of the mobile and stationary electrodes effects the selective connection or disconnection of electrical contacts carried on or associated with the respective electrodes of the actuation device without requiring additional power in order to maintain the switched state of theele ctrodes.
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公开(公告)号：DE60016692D1
公开(公告)日：2005-01-20
申请号：DE60016692
申请日：2000-10-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BISHOP DAVID JOHN , JIN SUNGHO , KIM JUNGSANG , RAMIREZ AINISSA G
Abstract: An actuation device employing square-loop latchable magnetic material (14, 16) having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field is created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material (14) is disposed on the mobile electrode (20) of a switching device, and another magnetic material (16) is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface (28). By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on the stationary electrode. The resulting relative displacement of the mobile (20) and stationary (18) electrodes effects the selective connection or disconnection of electrical contacts carried on or associated with the respective electrodes of the actuation device without requiring additional power in order to maintain the switched state of the electrodes.
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公开(公告)号：CA2323025C
公开(公告)日：2003-07-29
申请号：CA2323025
申请日：2000-10-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BISHOP DAVID JOHN , JIN SUNGHO , KIM JUNGSANG , RAMIREZ AINISSA G
Abstract: An actuation device employing square-loop latchable magnetic material having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field i s created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material is disposed on the mobile electrode of a switching device, and another magnetic material is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface. By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on t he stationary electrode. The resulting relative displacement of the mobile and stationary electrodes effects the selective connection or disconnection of electrical contacts carried on or associated with the respective electrodes of the actuation device without requiring additional power in order to maintain the switched state of theele ctrodes.
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公开(公告)号：DE60016692T2
公开(公告)日：2005-12-15
申请号：DE60016692
申请日：2000-10-09
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BISHOP DAVID JOHN , JIN SUNGHO , KIM JUNGSANG , RAMIREZ AINISSA G
Abstract: An actuation device employing square-loop latchable magnetic material (14, 16) having a magnetization direction (polarization) capable of being changed in response to exposure to an external magnetic field is disclosed. The magnetic field is created by a conductor assembly with non-solenoid configuration. Once the magnetization direction of the material is so changed, the external magnetic field is no longer required to maintain the new magnetization direction. The latchable magnetic material (14) is disposed on the mobile electrode (20) of a switching device, and another magnetic material (16) is disposed in spaced relation to the latchable magnetic material on a stationary electrode or surface (28). By applying an electrical current to a conductor assembly arranged proximate the latchable material, a magnetic field is created about the latchable magnetic material, to change the magnetization direction and thereby enable the attraction or repulsion of another magnetic material located on the stationary electrode. The resulting relative displacement of the mobile (20) and stationary (18) electrodes effects the selective connection or disconnection of electrical contacts carried on or associated with the respective electrodes of the actuation device without requiring additional power in order to maintain the switched state of the electrodes.
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公开(公告)号：CA2322714A1
公开(公告)日：2001-04-25
申请号：CA2322714
申请日：2000-10-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIN SUNGHO , BISHOP DAVID JOHN , VAN DOVER ROBERT BRUCE , RAMIREZ AINISSA G , KIM JUNGSANG
IPC: C22F1/14 , C22C5/00 , C22C5/02 , C22C5/04 , C22C5/06 , C22F1/00 , H01H1/00 , H01H1/023 , H01H1/027 , H01R13/02 , B81C1/00 , H01B1/02
Abstract: A device having electrical contacts formed from an alloy having improve d wear resistance is provided, the alloy being particularly useful in microrel ay devices formed by MEMS technology. In one embodiment, the alloys are chosen to allow sufficient precipitation hardening to improve wear resistance, but keep precipitation below a level that would unacceptably reduce electrical conductivity. This i s achieved by using alloying materials that have very limited or no solid solubility in the noble metal matrix, e.g., less than 4 wt.% solid solubility. In a second embodiment, an alloy contains a noble metal matrix and insoluble, dispersoid particles having no solubility in the matrix, these dispersoid particles offering a similar strengthening mechanism.
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