EP0902443B1 - Agencement de bobines planaire couplé - Google Patents

Agencement de bobines planaire couplé Download PDF

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Publication number
EP0902443B1
EP0902443B1 EP19980116465 EP98116465A EP0902443B1 EP 0902443 B1 EP0902443 B1 EP 0902443B1 EP 19980116465 EP19980116465 EP 19980116465 EP 98116465 A EP98116465 A EP 98116465A EP 0902443 B1 EP0902443 B1 EP 0902443B1
Authority
EP
European Patent Office
Prior art keywords
coil
coils
conductor track
plane
conductor
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.)
Expired - Lifetime
Application number
EP19980116465
Other languages
German (de)
English (en)
Other versions
EP0902443A2 (fr
EP0902443A3 (fr
Inventor
Stephan Dr. Weber
Josef Dr. Fenk
Bernd Kolb
Markus Dr. Zannoth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Infineon Technologies AG
Original Assignee
Infineon Technologies AG
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 Infineon Technologies AG filed Critical Infineon Technologies AG
Publication of EP0902443A2 publication Critical patent/EP0902443A2/fr
Publication of EP0902443A3 publication Critical patent/EP0902443A3/fr
Application granted granted Critical
Publication of EP0902443B1 publication Critical patent/EP0902443B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type
    • H01F17/0006—Printed inductances
    • H01F17/0013—Printed inductances with stacked layers

Definitions

  • the invention relates to a planar, coupled coil arrangement which can be used, for example, in an oscillator or a bandpass filter. It can also serve, for example, as a transformer, as an impedance converter, for coupling amplifier stages or for galvanic isolation.
  • a coil is a device that can store electromagnetic energy.
  • the coil is defined by constructive data of the coil such as length, diameter, shape, number of turns, core material and core shape.
  • JP 06 013239 A discloses a pair of two coils respectively arranged in sections on the front and rear sides of an insulating film.
  • EP 0 371 157 A discloses a power transformer with coil-shaped elements for coupling an antenna of a magnetic resonance tomograph.
  • An object of the invention is to provide a planar, coupled coil arrangement in which the disadvantages of the prior art are avoided.
  • the planar, coupled coil arrangement has a first coil, in which a first conductor portion of the first coil is arranged in a first plane and the first coil completion portion is arranged in a second plane and electrically connected by one or more connections to the first conductor portion connected is.
  • a second coil is provided, in which the conductor track is arranged wholly or partly in the second plane, in which if the second coil is arranged partially in the second plane, the part of the conductor track in the first or the second coil completing the second coil arranged third level and is electrically connected by one or more connections with the first conductor part of the second coil.
  • the coils are arranged symmetrically to each other and arranged the conductor tracks of the coils to each other so that a coupling between the coils takes place. Furthermore, the planes in which the conductor tracks and conductor track parts of the coils are arranged, metallization layers of an integrated circuit.
  • a third coil may be provided, in which the conductor track is arranged wholly or partly in the third plane and, if the conductor track of the third coil is arranged partially in the third plane, the part of the conductor track in the first completing the third coil or the second level and is electrically connected by one or more connections to the first conductor portion of the third coil.
  • the coil leads may have coil taps which are electrically connected by one or more connections to the trace of the respective coil.
  • the coils can be made round. This has the advantage that an optimal coupling between the coils can be achieved.
  • the coils can also be made square. This has the advantage of easy manufacturability.
  • the coils are arranged around the circuit. This saves space.
  • planar, coupled coil arrangement according to the invention is advantageously usable in an oscillator, in a bandpass filter, as a transformer, as an impedance converter, for coupling amplifier stages or for galvanic isolation.
  • FIG. 1 shows a first embodiment of the coil arrangement according to the invention with a first embodiment of the resistance circuit.
  • FIG. 2 shows the first embodiment of the coil assembly according to the invention with a second embodiment of the resistance circuit.
  • FIG. 3 shows a first plane of a second embodiment of the coil assembly according to the invention.
  • FIG. 4 shows the second level of the second embodiment of the coil assembly according to the invention.
  • FIG. 5 shows the third level of the second embodiment of the coil assembly according to the invention.
  • FIG. 6 shows a third embodiment of the coil arrangement according to the invention in plan view.
  • FIG. 7 shows the third embodiment of the coil assembly according to the invention in a three-dimensional view.
  • FIG. 8 shows a fourth embodiment of the coil assembly according to the invention in a three-dimensional view.
  • FIG. 9 shows a fifth embodiment of the coil assembly according to the invention in a three-dimensional view.
  • FIG. 10 shows a sixth embodiment of the coil assembly according to the invention in a three-dimensional view.
  • two coils S1 and S2 are present, which are connected via a resistor R1 to a conductor L1, which may for example lead to a reference potential.
  • the black drawn areas of the coils S1 and S2 are in a first plane.
  • the connections V1 and V2 are in a second plane and connect the conductor ends A, B and A ', B' together.
  • the connections between the first level and the second level at the points A, B, A 'and B' can be made, for example, by plated-through holes.
  • the coil terminals of the coils S1 and S2 are labeled A1, A2 and A3.
  • connection A3 for the coils S1 and S2 can also separate ports A3 and A4 for the coils S1 and S2, respectively FIG. 2 be provided.
  • the coils S1 and S2 are connected to the resistor R1 via the resistors R2 and R3, respectively.
  • resistors R1, R2 and R3 instead of the resistors R1, R2 and R3, other circuit elements can be connected to the coils S1 and S2.
  • FIG. 3 is the lowest level (Alu1) closest to the substrate. Arranged above is the second plane (Alu2) shown in FIG. 4, and in turn the latter in FIG. 5 shown top level (Alu3).
  • the conductor L1 to which the coils S1 and S2 are connected can be connected to a reference potential.
  • the coils S1 and S2 according to FIG. 4 and 5 have two ports A1 and A2, and a common port A3.
  • the conductor L1 be connected to the terminal A3.
  • the terminal A3 may also be connected to a circuit element.
  • the conductor ends A '''', B '''' and A ''',B''' in FIG. 4 are each a conductor track section, which between the points A '''', B '''andA''', B '''according to FIG. 5 is located, and corresponding vias interconnected.
  • the points A ", B" and A, B in FIG FIG. 5 with the between the points A '', B '' and A, B according to FIG. 4 located interconnects and corresponding vias connected.
  • the connecting element V which also represents a conductor track and between the points A ', B' in FIG. 4 is used to bridge the trace in FIG. 3 between points A 'and B'.
  • the conductor V is part of the coils S3 and S4 according to FIG. 3 ,
  • the coils S3 and S4 have a common terminal A6, and one terminal A5 and A4, respectively.
  • a circuit may be provided within these coils. This has, first, the advantage that space can be saved and, second, that in order to get from the circuit to the terminals A4 and A5 no additional bridges for bridging the tracks of the coils S3 and S4 are necessary.
  • the two coils S1 and S2 are predominantly one above the other. While the coil S1 predominantly in the is located first level, the coil S2 is located predominantly in the second level. The first level is gray, the second level is black.
  • the coil S1 has the terminals A1 and A2.
  • the ports A3 and A4 belong to the coil S2.
  • the coils S1 and S2 are shown in three-dimensional view.
  • the coil S2 is located directly below the coil S1.
  • connections in the second plane are provided, which serve to bridge the running between the points A and B in the first plane conductor of the first coil S1.
  • a connection between the points A 'and B' is provided in the first plane, which serves for bridging the between the points A 'and B' extending conductor track in the second plane.
  • the connections are connected to corresponding vias with the respective tracks of the coils.
  • the coupling of the coils S1 and S2 takes place transversely to the two planes.
  • the coils S1 and S2 are symmetrical to one another.
  • FIG. 8 shown fourth embodiment of the coil assembly on another coil S3, which is located in a third plane.
  • the coil S3 has the terminals A5 and A6.
  • the coil S3 is also coupled transversely to the planes 1, 2 and 3 with the coils S1 and S2.
  • the coils S1 and S2 represent bifilar coils.
  • Coil taps for example, as in FIG. 9 shown to be executed.
  • leads C, D and E are provided with the corresponding terminals A7, A8 and A9. While the turns of the coils are on the upper level, the leads C, D and E and the junctions between the points A, B and A ', B' are provided on the lower level. The coupling takes place here within the plane.
  • the coupling between the coils S1 and S2 or the coils S3 and S2 takes place vertically, ie transversely to the planes, while the coupling between the coils S1 and S3 takes place in the plane.
  • the coil S1 has the terminals A1 and A2, the coil S2, the terminals A3, A7 and A4, and the coil S3, the terminals A5 and A6.
  • the terminal A7 represents a center tap of the coil S2.
  • the connection between the points A and B of the coil S2 is provided in a third plane.
  • all embodiments of the coil arrangement according to the invention are both angular and round executable.
  • the coil arrangement according to the invention is also optimized in such a way that the number of required metallization layers in the integrated circuit are minimized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Coils Or Transformers For Communication (AREA)

Claims (8)

  1. Agencement de bobines planaire couplé,
    comprenant une première bobine (S1)
    dans laquelle une première partie de piste conductrice de la première bobine (S1) est disposée dans un premier plan,
    dans laquelle une partie de piste conductrice complétant la première bobine (S1) est disposée dans un deuxième plan et est reliée électriquement à la première partie de piste conductrice par une liaison ou par plusieurs liaisons,
    comprenant une deuxième bobine (S2),
    dans laquelle la piste conductrice est disposée entièrement ou en partie dans le deuxième plan,
    dans laquelle, dans le cas où la piste conductrice de la deuxième bobine (S2) est disposée en partie dans le deuxième plan, la partie de la piste conductrice complétant la deuxième bobine (S2) est disposée dans le premier plan ou dans un troisième plan et est reliée électriquement à la première partie de piste conductrice de la deuxième bobine (S2) par une liaison ou par plusieurs liaisons,
    dans lequel les bobines (S1, S2) sont disposées symétriquement l'une par rapport à l'autre,
    dans lequel les pistes conductrices des bobines (S1, S2) sont disposées les unes par rapport aux autres de manière à ce qu'un couplage entre les bobines (S1, S2) ait lieu,
    et dans lequel les plans dans lesquels les pistes conductrices et les parties de piste conductrice des bobines (S1, S2) sont disposées sont des couches de métallisation d'un circuit intégré.
  2. Agencement de bobines suivant la revendication 1,
    comprenant une troisième bobine (S3), dans laquelle la piste conductrice est disposée complètement ou en partie dans le troisième plan,
    dans lequel, dans le cas où la troisième bobine (S3) est disposée en partie dans le troisième plan, la partie de la piste conductrice complétant la piste conductrice de la troisième bobine (S3) est disposée dans le premier ou dans le deuxième plan et est reliée électriquement à la première partie de piste conductrice de la troisième bobine (S3) par une liaison ou par plusieurs liaisons.
  3. Agencement de bobines suivant l'une des revendications 1 ou 2, dans lequel il est prévu pour la prise de bobine, des pistes (C, D, E) conductrice de connexion, qui sont reliées électriquement à la piste conductrice de la bobine correspondante par une liaison ou par plusieurs liaisons.
  4. Agencement de bobines suivant l'une des revendications 1 à 3, dans laquelle les bobines (S1, S2, S3) sont rondes.
  5. Agencement de bobines suivant l'une des revendications 1 à 3, dans lequel les bobines ((S1, S2, S3) sont polygonales.
  6. Agencement de bobines suivant l'une des revendications 1 à 5, dans lequel les bobines sont disposées autour du circuit.
  7. Agencement de bobines suivant l'une des revendications 1 à 6, dans lequel les pistes conductrices des bobines sont disposées d'une manière prépondérante les unes sur les autres.
  8. Utilisation de l'agencement de bobines suivant l'une des revendications 1 à 7, dans un oscillateur, dans un passe-bande, comme transformateur, comme convertisseur d'impédance, pour le couplage d'étages d'amplificateur ou pour la séparation galvanique.
EP19980116465 1997-09-11 1998-09-01 Agencement de bobines planaire couplé Expired - Lifetime EP0902443B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997139962 DE19739962C2 (de) 1997-09-11 1997-09-11 Planare, gekoppelte Spulenanordnung
DE19739962 1997-09-11

Publications (3)

Publication Number Publication Date
EP0902443A2 EP0902443A2 (fr) 1999-03-17
EP0902443A3 EP0902443A3 (fr) 1999-09-08
EP0902443B1 true EP0902443B1 (fr) 2009-03-11

Family

ID=7842025

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980116465 Expired - Lifetime EP0902443B1 (fr) 1997-09-11 1998-09-01 Agencement de bobines planaire couplé

Country Status (2)

Country Link
EP (1) EP0902443B1 (fr)
DE (2) DE19739962C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3367067A1 (fr) 2017-02-28 2018-08-29 Melexis Technologies SA Capteur de position et procédé de détection de position

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19756188A1 (de) * 1997-12-17 1999-06-24 Trw Nelson Bolzenschweisstechn Leistungsübertrager für ein Leistungsschaltnetzteil, insbesondere für Bolzenschweißgeräte
DE19960474B4 (de) * 1999-12-15 2004-07-01 Forschungszentrum Jülich GmbH Transformator
KR100420948B1 (ko) * 2001-08-22 2004-03-02 한국전자통신연구원 병렬 분기 구조의 나선형 인덕터
US6803849B2 (en) * 2002-10-31 2004-10-12 Intersil Americas Inc. Solid state inducting device
CN1299303C (zh) * 2004-01-30 2007-02-07 联华电子股份有限公司 对称型电感
CN101017726B (zh) * 2004-01-30 2011-07-27 联华电子股份有限公司 对称型电感
CN100416797C (zh) * 2006-09-19 2008-09-03 威盛电子股份有限公司 对称电感元件
CN100565875C (zh) * 2007-10-26 2009-12-02 威盛电子股份有限公司 对称电感元件
JP2011040509A (ja) 2009-08-07 2011-02-24 Imec ２層式トランス
CN114496500A (zh) * 2020-10-26 2022-05-13 北京小米移动软件有限公司 一种充电线圈结构、接收端、发送端及无线充电系统

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
DE7515106U (de) * 1975-05-10 1976-02-19 Blaupunkt-Werke Gmbh, 3200 Hildesheim Gedruckte spule
DE8226746U1 (de) * 1982-09-23 1983-04-14 Schwär, Gerhard, 2070 Ahrensburg Transformator
DE3888185D1 (de) * 1988-11-28 1994-04-07 Siemens Ag Leitungstransformator.
JPH0377360A (ja) * 1989-08-18 1991-04-02 Mitsubishi Electric Corp 半導体装置
JP3141562B2 (ja) * 1992-05-27 2001-03-05 富士電機株式会社 薄膜トランス装置
JPH0613239A (ja) * 1992-06-25 1994-01-21 Matsushita Electric Works Ltd 平面形トランス
DE807941T1 (de) * 1994-08-24 1998-03-26 Yokogawa Electric Corp Gedruckte Spule
EP0771012A3 (fr) * 1994-08-24 1998-02-25 Yokogawa Electric Corporation Transformateur à bobines imprimées
DE19522043A1 (de) * 1995-06-17 1996-12-19 Bosch Gmbh Robert Induktives Bauelement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3367067A1 (fr) 2017-02-28 2018-08-29 Melexis Technologies SA Capteur de position et procédé de détection de position
US10415997B2 (en) 2017-02-28 2019-09-17 Melexis Technologies Sa Position sensor and method of position sensing

Also Published As

Publication number Publication date
DE19739962C2 (de) 2000-05-18
EP0902443A2 (fr) 1999-03-17
DE59814350D1 (de) 2009-04-23
DE19739962A1 (de) 1999-04-01
EP0902443A3 (fr) 1999-09-08

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