EP0884741A1 - Composant électronique - Google Patents

Composant électronique Download PDF

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Publication number
EP0884741A1
EP0884741A1 EP97109720A EP97109720A EP0884741A1 EP 0884741 A1 EP0884741 A1 EP 0884741A1 EP 97109720 A EP97109720 A EP 97109720A EP 97109720 A EP97109720 A EP 97109720A EP 0884741 A1 EP0884741 A1 EP 0884741A1
Authority
EP
European Patent Office
Prior art keywords
component
contact
underside
component body
threads
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.)
Withdrawn
Application number
EP97109720A
Other languages
German (de)
English (en)
Inventor
Georg Puskas
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.)
Ibek Georg Puskas Ingenieurbuero
Original Assignee
Ibek Georg Puskas Ingenieurbuero
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 Ibek Georg Puskas Ingenieurbuero filed Critical Ibek Georg Puskas Ingenieurbuero
Priority to EP97109720A priority Critical patent/EP0884741A1/fr
Publication of EP0884741A1 publication Critical patent/EP0884741A1/fr
Withdrawn legal-status Critical Current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
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/28—Coils; Windings; Conductive connections
    • H01F27/29—Terminals; Tapping arrangements for signal inductances

Definitions

  • the invention relates to an electronic component with a integrated component body that has at least two contact threads has, which are connected to two contact elements with which the component body attachable to a circuit board is.
  • a number of electronic components are made on substrates integrated. This affects, for example, planar transformers, in which the coil body in the integrated component body is provided.
  • Such an electronic component is out the catalog "Inductive Ferrite Components” from Siemens Matsushita Components GmbH & Co. KG known from 1996. This product book explains that the manufacturer has two supplies different types of contact elements. These are for one the so-called J-connections and the other the so-called Articulated wing connections.
  • This embodiment is disadvantageous in that the component cannot be fastened flat on the circuit board.
  • the invention lies Task based on an electronic component of the beginning to improve the type mentioned so that it is directly on the PCB is attachable.
  • this object is achieved for an electronic component of the type mentioned in that the Contact elements on the surface of the integrated component body are guided to the underside so that the component body, can be placed directly on the circuit board with its underside is.
  • An advantage of the galvanic coating of the component body from end points of those provided in the integrated component body Circuit on the surface starting at the bottom of the electronic component lies in the fact that the electronic Component can now be generated in one production run.
  • a method of manufacturing this electronic component is characterized in that the component in layers is integrated and that on the side surfaces of the component body contact surfaces leading to the underside of the component body are applied to the underside of the component body are extended.
  • a particularly advantageous embodiment of such an electronic Component lies in the design of planar transformers, where a core on the integrated component body is put on.
  • FIG. 1 shows an electronic component 1, in a Bottom view. So the view is like being from a circuit board on which the component is mounted would be looking at the component 1 from below.
  • the electronic component 1 is a planar transformer that consists of an integrated component body 2 and a core 3.
  • the integrated component body 2 are in one or more coils parallel to the plane of the drawing are provided, which are essentially circular or rectangular around the point of symmetry of the component body 2 run around.
  • On this with the in 2 and 3 better recognizable axis 4 is in the integrated Component body preferably milled a hole 13 through which the core 3 is pluggable.
  • connection ends of those provided in the component body 2 Coil or coils lead into the semi-circular recessed Areas 5 up to the side edges 6 of the integrated component body. In the illustrated embodiment, these are based on six on one side and four on the other Body 2 led out contact points. At locations 5 of the contact points are each semicircular vertically to the drawing plane Recesses are provided in a subsequent manufacturing step have been coated with a conductive material, to form contact surfaces 7. Extend these contact surfaces 7 on the underside 8 of the body 2 to the lower contact surfaces 9. The component 1 can therefore directly on the bottom 8 a printed circuit board are placed, the conductive connection of the individual contact surfaces 9 with the circuit board by soldering can be created.
  • the usual dimensions of such a planar transformer are for example a width between the two side surfaces 6 of 15 millimeters and a length of, for example, 10.8 millimeters, where the length over everything, that is including the protruding parts of the core 3 is 14 millimeters.
  • a Design of such transformers for larger outputs can Use substrates with larger dimensions.
  • length and width of the substrate in the range of ten centimeters can be chosen. The advantage of the low height will now become clearer in connection with FIG. 2.
  • FIG. 2 shows a front view of an electronic component 1 according to Fig. 1.
  • the same features are in all drawings provided with the same reference numerals.
  • Recesses 5 are provided, which are metallized accordingly a conductor connection to the lower contact surfaces 9 on the Manufacture underside 8 of component body 2.
  • a rectangular recess 10 is provided from below, the depth of the recess 10 up to its rear edge 11 is 1.6 millimeters, for example.
  • this cuboid Recess 10 is then miniaturized in the manufacture Transformer of core 3 used. For example, this has a height of 5 millimeters, both of which are the component 2 encompassing yokes 12 have a height of 1.5 millimeters. This ensures that even taking into account the manufacturing tolerances the bottom 18 of the core 3 safely above the Bottom surface 8 of the component body 2 is arranged so that the electronic component 1 with its lower surface 8 and Contact surfaces 9 can be placed directly on a circuit board.
  • FIG. 3 shows a side view of the electronic component 1. It is the side surface 6, the semicircular Recesses 5 and the contact surfaces 9 on the underside clearly visible. In addition, the height is dashed the recess 10 with its rear edge 11 to recognize the around the core 3 lies.
  • FIG. 4 finally shows a schematic section a substrate with two rows of two each shown in full and two adjacent components 1 shown in part in different production stages using a preferred manufacturing process.
  • the individual are Components 1 only partially executed, on the one hand for clarification continuous production, on the other for reasons of simplification.
  • a first coil layer 21 drawn in, with two contact threads on each side 22 extend into the area of the later side surface 6. It several layers of coils are provided here, of which on the left below two, namely the coils 21 and 31 are shown. This one four contact threads 22 and 32 are assigned here.
  • the electronic component according to the invention is for each type of switching element suitable, but it is advantageous used for planar transformers and similar components is where a circuit is built on a substrate can be.
  • the contact surfaces 9 on the Bottom 8 of the substrate applied such as one rectangular two adjacent components 1 encompassing Form contact surface 9.
  • the Contact threads 22 and 32 provided locations in the area of the side surfaces 6 holes drilled, which are metallized in a simple manner can be around the contact threads 22 with the contact surface 9 to connect. In a simplified embodiment it is also possible to do without these holes, but has then the conductive connection between the contact threads 22 and 32 and the contact surfaces 9 after cutting the substrate to happen in individual components 1.
  • planar transformers shown here with four or six contact points are all other electronic Components realizable, especially those where one Inductance is provided.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
EP97109720A 1997-06-14 1997-06-14 Composant électronique Withdrawn EP0884741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP97109720A EP0884741A1 (fr) 1997-06-14 1997-06-14 Composant électronique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97109720A EP0884741A1 (fr) 1997-06-14 1997-06-14 Composant électronique

Publications (1)

Publication Number Publication Date
EP0884741A1 true EP0884741A1 (fr) 1998-12-16

Family

ID=8226918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97109720A Withdrawn EP0884741A1 (fr) 1997-06-14 1997-06-14 Composant électronique

Country Status (1)

Country Link
EP (1) EP0884741A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582881A1 (fr) * 1992-07-27 1994-02-16 Murata Manufacturing Co., Ltd. Composant électronique multicouche, sa méthode de fabrication et méthode de mesure de ses caractéristiques
JPH08195318A (ja) * 1995-01-18 1996-07-30 Fujitsu Denso Ltd 表面実装用トランス
EP0741396A1 (fr) * 1995-05-04 1996-11-06 AT&T IPM Corp. Dispositif à puissance magnétique utilisant une connexion sans fils à une carte de circuit imprimé et sa méthode de fabrication

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0582881A1 (fr) * 1992-07-27 1994-02-16 Murata Manufacturing Co., Ltd. Composant électronique multicouche, sa méthode de fabrication et méthode de mesure de ses caractéristiques
JPH08195318A (ja) * 1995-01-18 1996-07-30 Fujitsu Denso Ltd 表面実装用トランス
EP0741396A1 (fr) * 1995-05-04 1996-11-06 AT&T IPM Corp. Dispositif à puissance magnétique utilisant une connexion sans fils à une carte de circuit imprimé et sa méthode de fabrication

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 096, no. 011 29 November 1996 (1996-11-29) *

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