EP1547113B1 - Composant a auto-configuration par arc electrique - Google Patents

Composant a auto-configuration par arc electrique Download PDF

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Publication number
EP1547113B1
EP1547113B1 EP03750445A EP03750445A EP1547113B1 EP 1547113 B1 EP1547113 B1 EP 1547113B1 EP 03750445 A EP03750445 A EP 03750445A EP 03750445 A EP03750445 A EP 03750445A EP 1547113 B1 EP1547113 B1 EP 1547113B1
Authority
EP
European Patent Office
Prior art keywords
component
conductor
arc
circuit element
conductive layer
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
EP03750445A
Other languages
German (de)
English (en)
Other versions
EP1547113A1 (fr
Inventor
Stephan Hell
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.)
Wickmann Werke GmbH
Original Assignee
Wickmann Werke GmbH
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 Wickmann Werke GmbH filed Critical Wickmann Werke GmbH
Publication of EP1547113A1 publication Critical patent/EP1547113A1/fr
Application granted granted Critical
Publication of EP1547113B1 publication Critical patent/EP1547113B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/46—Circuit arrangements not adapted to a particular application of the protective device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/04—Fuses, i.e. expendable parts of the protective device, e.g. cartridges
    • H01H85/041—Fuses, i.e. expendable parts of the protective device, e.g. cartridges characterised by the type
    • H01H85/0411—Miniature fuses
    • H01H2085/0412—Miniature fuses specially adapted for being mounted on a printed circuit board

Definitions

  • the invention relates to a device with an internal conductor, which is designed so that it is cut at a predetermined location to form an arc, provided that predetermined current / voltage conditions occur at terminals of the device.
  • Such devices are e.g. from document US 5 148 141 known.
  • a component of the type mentioned is, for example, a fuse element in the embodiment as a chip fuse. If the current flow through the chip fuse exceeds a maximum value for a predetermined duration, it may turn off the fuse, i. come to a cutting of a fuse conductor. Starting at the point of separation, an arc is formed in the fuse component, which allows a continued flow of current between the terminals of the chip fuse despite the severed fusible conductor. The arc and the continued current flow are undesirable. In particular, in the event of a short circuit, undesired destruction of the fuse component and the surrounding circuit may occur in the case of very high currents transported via the arc.
  • the object of the invention is therefore to provide a device with which a fuse component can be produced, in which a reduced current flow in the case of shutdown is possible without adversely affecting the operating parameters during normal operation (before shutdown).
  • the core idea of the invention is to utilize the energy released when switching off the arc in such a way that the electrical properties of a circuit element of a component are changed in a desired manner, ie the component is reconfigured.
  • the component can be a two-terminal coil with two terminals, wherein the change in the electrical properties of the circuit element caused by the arc leads to an altered two-pole behavior of the component.
  • the internal conductor trace severed by the arc and the circuit element whose electrical characteristics are changed could be connected to separate terminals of the device.
  • the device is a layer device in which the conductor and the circuit element of structured layers are formed on a substrate.
  • these are thick-film conductive layers and resistor layers.
  • the circuit element reconfigured by the arc may be any two-terminal.
  • this two pole changes its electrical resistance upon the action of the arc; Preferably, the resistance is increased.
  • the circuit element is a second conductor, which is severed when exposed to the arc. In this embodiment, so to speak, first the internal Conductor divided to form the arc and then cut as a result of this arc, the second conductor also. In order to enable an energetically favorable action of the arc on the second conductor, the second conductor preferably crosses the internal conductor at the predetermined location at which the internal conductor is severed to form the arc.
  • a preferred embodiment of the device is characterized in that in the device parallel to the second conductor, on which the arc can act, a resistance element is connected.
  • the parallel circuit thus formed has a very low resistance before the action of the arc and, after the action of the arc, the resistance of the resistance element alone.
  • this parallel circuit of circuit element and resistive element is connected in series with the internal circuit trace which is severed to form the arc.
  • This series connection has a very low resistance before the formation of an arc, namely the series connection of the internalnatices and the secondêttagens.
  • the resistive element is connected in series with the still existing arc of the internal circuit trace. The resistive element then limits the current flow through the arc.
  • the latter embodiment is preferably used as a fuse component, wherein the internal conductor is severed to form an arc, as long as a current through the conductor exceeds a maximum value for an associated maximum duration.
  • a "cut-off" can be carried out at different currents, wherein at higher current values, a lower Stromflußdauer to to shut down is required.
  • Such a fuse component has the advantage that in the case of switching off with a resulting arc, a resistor is connected in the current path.
  • the resistance ie the resistance element
  • the resistor element connected in parallel with the second conductor has a resistance between 5 ⁇ and 20 ⁇ .
  • the dimensioning of the resistance element, both in terms of the ohmic resistance and its maximum power loss depends on the application of the fuse component, in particular from the cut-off and the maximum applied voltage.
  • the internal and the second conductor line and the resistance element are formed from structured layers on a substrate, wherein the internal conductor line is arranged over a portion of the second conductor line and separated therefrom by an electrically insulating layer.
  • the internal conductor trajectory crosses the second conductor traction covered by an insulator layer.
  • FIG. 1A shows a schematic plan view of the upper side of a component 1.
  • a substrate 2 for example an Al 2 O 3 substrate or another ceramic substrate.
  • a number of layers are applied on the upper side of a substrate 2, for example an Al 2 O 3 substrate or another ceramic substrate.
  • Figure 1A illustrates only the layers essential to the invention.
  • a number of further layers may be applied below, between or over the illustrated layers, for example insulator, capping, protective layers and layers which influence heat dissipation.
  • a first conductive layer 5 is first applied and patterned, which in addition to the pads 6 and 7 comprises a transverse to the longitudinal direction of the substrate 2 extending conductor 8.
  • the conductor 8 is part of a U-shaped Porterzugschleife in the conductive layer 5.
  • a resistance layer 9 is applied, which is structured so that an approximately rectangular portion of the resistance layer, the legs of the U-shaped Porterzugschleife at the upper ends combines. That is, between the conductive layer 5 and the resistance layer 9, an electrical contact is made.
  • the resistive layer 9 could also be disposed under the conductive layer 5. This arrangement of the patterned resistive layer 9 and the structured conductive layer 5 creates a parallel connection between a resistor and a U-shaped conductor loop, wherein one terminal of the parallel circuit is connected directly to the contact surface 6.
  • An electrically insulating layer (not shown in FIG. 1 a) is applied over the conductive layer 5 and at least one further structured conductive layer 3 is applied to this insulator layer.
  • the further conductive layer 3 is structured so that it forms a PorterzugstMail which overlaps the contact surface 7 at one end and overlaps at its other end the U-shaped Porterzug. In both overlapping regions, a window is formed in the insulator layer arranged between the conductive layer 5 and the at least one further conductive layer 3, so that contacts can be produced between the conductive layer 5 and the conductive layer 3 at these locations.
  • the contact of the conductive layer 3 to the underlying conductive layer 5 in the U-shaped Porterzug Anlagen is located at that end of the U-shaped Porterzugschleife that forms not connected to the contact surface 6 node of the parallel circuit of resistance layer 9 and U-shaped Leitzugschleife.
  • a section 4 of the at least one further conductive layer 3 crosses the conductor 8.
  • the section 4 of the conductive layer 3 crossing the conductor 8 is separated from the conductor 8 by the insulator layer.
  • the portion 4 of the at least one conductive layer 3 is formed as a fusible element, for example (as shown in Figure 1A) of smaller width than the rest of the conductor formed in the conductive layer 3 Porterzugs.
  • the fusible element forming portion 4 in the at least one conductive layer 3 may include, for example, a thick-film conductor containing silver and, in addition, a solder layer deposited thereon.
  • FIG. 1B shows a circuit diagram of the arrangement shown schematically in FIG. 1A.
  • the contact surfaces 6 and 7 correspond to the terminals 16 and 17, respectively.
  • the U-shaped conductor loop in the conductive layer 5 corresponds to the short-circuit connection 18.
  • the resistance element formed in the resistance layer 9 corresponds to the resistor R 19.
  • the fusible conductor element formed in the at least one second conductive layer 3 in the section 4 corresponds to the fusible conductor element 14 in FIG. 1B.
  • the currents flowing through the device 1 are sufficiently small so that the fuse element 14 remains intact, the current flows essentially through the short-circuit connection 18 and the fuse element 14 between the terminals 16 and 17.
  • the device 1 has a small ohmic resistance.
  • the fusible conductor element 14, ie the section 4 in the conductive layer 3 is severed.
  • the process of severing depends on the structure of the fusible element. For example, if a conductive layer 3 containing silver particles is covered at a predetermined location by a solder layer (containing tin and lead), and if the current flowing causes the device to be heated, the conductive layer is severed due to a complex process associated with melting of the device Lotimetalls, the diffusion of the metal into the silver layer, the increase in the resistivity of the conductive layer, the local heating and the evaporation of the conductive layer is accompanied.
  • the process of severing is primarily determined by evaporation of the conductive layer material due to local heating.
  • the arc causes further vaporization of the located at the two ends of the
  • FIGS. 2A and 2B schematically show the fuse component 1 shown in FIG. 1A and the circuit shown in FIG. 1B in the case where an arc 10 has formed in the region of the severed portion 4 of the conductive layer.
  • the energy of the arc simultaneously evaporates the material of the underlying insulator layer and a portion of the underlayer material of the conductive layer 5 in the circuit trace 8.
  • the circuit trace 8 becomes finally severed.
  • the thickness of the insulator layer between the conductive layer 3 and conductive layer 5 in the region of Porterzugs 8 must be chosen so that on the one hand provides sufficient electrical insulation available, on the other hand is as thin as possible to a high proportion of the arc energy to the conductive layer. 5 allow the conductor 8.
  • the combination of conductive layer 5 (in Porterzug Scheme 8) and insulator layer must be designed so that an ignition of an arc between the connected to the terminal 6 portion of the broken Porterzugs 8 and connected to the terminal 7 portion of the conductive layer 3 is avoided. This can be achieved by a suitable layout design and insulator layer thickness.
  • Figure 2B shows the circuit diagram that results when the arc 10 is ignited and the conductor 8 is already severed.
  • the resistor 19 connected in parallel short-circuit connection 18 is cut, so that between the terminals 16 and 17, the resistor R19 is connected in series with the arc 10.
  • the resistor R thus limits the current flowing across the arc 10 current.
  • the dimensioning of the resistor 19, both in terms of resulting ohmic resistance R as well as in terms of power consumption (maximum power dissipation) depends on several factors, which depend on the maximum voltage between the contacts 16 and 17 and the desired maximum current (short-circuit current). In one embodiment, R could have a resistance between 5 ⁇ and 20 ⁇ , for example 10 ⁇ .
  • the layout shown in FIG. 1A (with the same circuit diagram) could be considerably modified.
  • the order of the layer application could also be changed.
  • the conductor 8 could be arranged parallel to the section 4 of the conductor 3 or 3 cross the section 4 twice in a U-shaped course of the conductor.
  • the energy of the arc could also be used to modify a layer deposited on the substrate 2 without vaporizing it.
  • the action of the arc could cause an increase in the sheet resistance, for example by alloying effects.

Landscapes

  • Fuses (AREA)
  • Led Devices (AREA)
  • Lasers (AREA)
  • Semiconductor Lasers (AREA)
  • Discharge Heating (AREA)

Claims (12)

  1. Composant (1) comportant un jeu interne intérieur de conducteurs (3) qui est conçu de façon à se rompre à un endroit prédéterminé avec formation d'un arc si des conditions prédéterminées de courant/tension apparaissent à des bornes (6, 7) du composant (1),
    caractérisé par le fait
    qu'il présente un autre élément de circuit (8) qui est placé de façon que l'arc (10) produit à l'endroit fixé (4) agisse sur cet élément de circuit (8) de façon telle que celui-ci change alors de propriétés électriques.
  2. Composant (1) selon la revendication 1, caractérisé par le fait qu'il est un composant en couches, la file de conducteurs (3) et l'élément de circuit (8) étant formés de couches structurées appliquées sur un substrat (2).
  3. Composant (1) selon l'une des revendications 1 et 2, caractérisé par le fait qu'il présente deux bornes (6, 7) et que le jeu interne de conducteurs (3) et l'élément de circuit (8) sont montés entre ces deux bornes (6, 7).
  4. Composant selon l'une des revendications 1 à 3, caractérisé par le fait que l'élément de circuit est un dipôle qui change de résistance électrique lors de l'action de l'arc.
  5. Composant selon l'une des revendications 1 à 3, caractérisé par le fait que l'élément de circuit est un deuxième jeu de conducteurs (8) qui se rompt lors de l'action de l'arc (10).
  6. Composant selon la revendication 5, caractérisé par le fait que le deuxième jeu de conducteurs (8) croise le jeu interne de conducteurs (3) à un endroit fixé (4).
  7. Composant selon l'une des revendications 5 et 6, caractérisé par le fait qu'un élément résistant (9) y est monté parallèlement à la deuxième file de conducteurs (8) sur laquelle l'arc (10) peut agir.
  8. Composant selon la revendication 7, caractérisé par le fait que le jeu interne de conducteurs (3) que se rompt avec formation d'un arc (10) est monté en série avec le montage en parallèle de l'élément de circuit (8) et de l'élément résistant (9).
  9. Composant selon la revendication 8 destiné à être utilisé comme composant de fusible, caractérisé par le fait que le jeu interne de conducteurs (3) se rompt avec formation d'un arc (10) si le courant qui la traverse dépasse une valeur maximale pendant une durée maximale correspondante.
  10. Composant selon la revendication 9, caractérisé par le fait que l'élément résistant (9) monté en parallèle sur le deuxième jeu de conducteurs présente une résistance comprise entre 5 Ω et 20 Ω.
  11. Composant selon l'une des revendications 9 et 10, caractérisé par le fait que le jeu interne de conducteurs (3) comprend un élément fusible.
  12. Composant selon l'une des revendications 9 à 11, caractérisé par le fait que le jeu intérieur de conducteurs (3), le deuxième jeu de conducteurs (8) et l'élément résistant (9) sont formés de couches structurées appliquées sur un substrat, le jeu interne de conducteurs (3) étant placé au-dessus d'un tronçon du deuxième jeu de conducteurs (8) et séparé de celui-ci par une couche isolante.
EP03750445A 2002-09-28 2003-08-27 Composant a auto-configuration par arc electrique Expired - Lifetime EP1547113B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10245393 2002-09-28
DE10245393A DE10245393A1 (de) 2002-09-28 2002-09-28 Mittels Lichtbogen selbst-konfigurierendes Bauelement
PCT/EP2003/009458 WO2004034416A1 (fr) 2002-09-28 2003-08-27 Composant a auto-configuration par arc electrique

Publications (2)

Publication Number Publication Date
EP1547113A1 EP1547113A1 (fr) 2005-06-29
EP1547113B1 true EP1547113B1 (fr) 2006-09-27

Family

ID=31984217

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03750445A Expired - Lifetime EP1547113B1 (fr) 2002-09-28 2003-08-27 Composant a auto-configuration par arc electrique

Country Status (5)

Country Link
US (1) US7417526B2 (fr)
EP (1) EP1547113B1 (fr)
AT (1) ATE341096T1 (fr)
DE (2) DE10245393A1 (fr)
WO (1) WO2004034416A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7208776B2 (en) * 2004-01-30 2007-04-24 Broadcom Corporation Fuse corner pad for an integrated circuit
KR100586548B1 (ko) * 2004-06-22 2006-06-08 주식회사 하이닉스반도체 반도체 메모리소자의 퓨즈 및 리페어 방법
JP5288823B2 (ja) * 2008-02-18 2013-09-11 キヤノン株式会社 光電変換装置、及び光電変換装置の製造方法
US20100141375A1 (en) * 2008-12-09 2010-06-10 Square D Company Trace fuse with positive expulsion
US8319573B2 (en) * 2009-12-23 2012-11-27 Infineon Technologies Austria Ag Signal transmission arrangement

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DE813563C (de) * 1939-04-26 1951-09-13 Allen West & Co Ltd Elektrischer Stromunterbrecher
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US4814853A (en) * 1981-10-28 1989-03-21 Tokyo Shibaura Denki Kabushiki Kaisha Semiconductor device with programmable fuse
DE3221919C2 (de) * 1982-06-11 1985-07-18 Wickmann-Werke GmbH, 5810 Witten Überwachungselement für Leistungsstromkreise
JPS6421840A (en) * 1987-07-16 1989-01-25 S O C Kk Current fuse for high-voltage circuit
DE3723832A1 (de) * 1987-07-18 1989-02-02 Apag Elektronik Ag Gedruckte schaltung mit integrierter sicherung
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JP3242849B2 (ja) * 1996-10-30 2001-12-25 矢崎総業株式会社 大電流ヒューズユニット
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KR100456571B1 (ko) * 2002-08-12 2004-11-10 현대자동차주식회사 자동차용 퓨즈의 단선 진단장치

Also Published As

Publication number Publication date
WO2004034416A1 (fr) 2004-04-22
DE10245393A1 (de) 2004-04-08
ATE341096T1 (de) 2006-10-15
EP1547113A1 (fr) 2005-06-29
US7417526B2 (en) 2008-08-26
US20060138588A1 (en) 2006-06-29
DE50305199D1 (de) 2006-11-09

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