EP1184942A1 - Procédé de fabrication d'un interconnecteur pour la microconnectique constitue d'un support textile à éléments conducteurs traversants et interconnecteur ainsi obtenu - Google Patents
Procédé de fabrication d'un interconnecteur pour la microconnectique constitue d'un support textile à éléments conducteurs traversants et interconnecteur ainsi obtenu Download PDFInfo
- Publication number
- EP1184942A1 EP1184942A1 EP01450016A EP01450016A EP1184942A1 EP 1184942 A1 EP1184942 A1 EP 1184942A1 EP 01450016 A EP01450016 A EP 01450016A EP 01450016 A EP01450016 A EP 01450016A EP 1184942 A1 EP1184942 A1 EP 1184942A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- connector
- textile support
- interconnector
- penetration
- 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- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/22—Contacts for co-operating by abutting
- H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
- H01R13/2407—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means
- H01R13/2414—Contacts for co-operating by abutting resilient; resiliently-mounted characterized by the resilient means conductive elastomers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/52—Fixed connections for rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/7082—Coupling device supported only by cooperation with PCB
Definitions
- the present invention relates to microconnectics and more particularly to connection devices, more commonly called “interposers” by professionals, intended to interpose, for the purposes of connection, between two printed circuits, rigid or flexible, or between a component such as an integrated circuit with flush contacts beneath its surface bottom and a printed circuit with flush contact pads.
- connection device constituting an anisotropic conductive film formed of a film or sheet in elastomeric material in the mass of which, perpendicular to the plane of the film are arranged electrical conductors in the form of wires or fibers of preferably slightly longer than the thickness of said film.
- the manufacturing process of such an "interpose” consists in dispensing in a liquid non-conductive elastomer matrix of the conductive wires magnetizable, to form a sheet and subject it to a field magnetic perpendicular to the tablecloth, while gathering in bundles the wires at determined points so as to obtain an electrically insulating film in X, Y i.e. in its plane, but conductive in Z through a plurality of transverse bundles of conductive fibers, said bundles being distributed according to a determined network, the ends of said beams protruding from the two opposite sides of the film.
- One or more adjoining strips are flanked by more layers thick insulating elastomers to form a sandwich.
- the ends of the conductors slightly protrude from the edges opposite of said strips.
- the production technique consists of cutting the wires to length desired and to drown them in an elastomer matrix constituting the substrate strips.
- the wires must of course be aligned properly with the right separation interval. This technique is neither simpler nor more practical, nor more economical than the previous technique.
- US Patent 5,599,193 relates to an interconnection device electric consisting of an elastomer sheet pierced through and through in order to receive insulating elastomeric pads covered with a conductive layer, projecting on either side of the sheet so as to establish connections electrical through the sheet.
- the present invention specifically aims to overcome the disadvantages of these techniques by proposing a manufacturing process simpler, more practical, faster interconnector and economical to implement.
- the invention relates to a method of manufacturing a interconnector for the microconnectics, characterized in that it consists of constitute through a thin support formed of a textile support produced at from an electrically non-conductive material, at least one stud of a electrically conductive elastomeric material flush on both sides of said textile support.
- textile support any woven or non-woven support including absorbent papers, filter papers or the like.
- said conductive pads are produced by penetration under pressure of a polymerized elastomer then for example to ultraviolet.
- a multiplicity of such studs are formed in the textile support according to a regular distribution of determined pitch or irregular depending on the application.
- the textile support is a nonwoven, such support having the advantage of presenting a large perpendicular to its plane compressibility which, combined with the axial elasticity of the studs, gives the interconnector a cross compliance, that is to say an ability to deform elastically to adapt to the contact surfaces to be connected, quite interesting.
- the subject of the invention is also the interconnects produced according to the above process.
- a plurality of pads 4 of elastomer Perpendicular to the plane of the frame and throughout the thickness of the tissue are for example injected under pressure, in accordance with the invention, a plurality of pads 4 of elastomer whose ends are flush with the faces opposite of fabric 1.
- the fabric 1 is made from a non-conductive material of the electricity and the nature of the material as well as the texture of the fabric may vary depending on the applications envisaged.
- the fabric can be made to from polyamide or polybutylene terephthalate fibers.
- the studs 4 are injected through the fabric 1 and creep between the wires of weft and chain.
- the material of the pads 4 is an elastomer conducting electricity which, after injection, is polymerized for example under ultraviolet light by scrolling.
- the conductivity of the silicone is obtained for example using of a charge consisting of silver particles, however that in order to improve the temperature resistance of the silicone may advantageously be fluorinated.
- the injection is made for example using a syringe brought to the contact of fabric 1 at the desired location and the piston of which is controlled to deliver the quantity of elastomer necessary for a pad 4, the operation being automatically repeated by moving the syringe next to the desired locations, in order to create a network of studs with determined pitch.
- the length and diameter of the studs 4 depend on the type of fabric 1 and of its texture.
- all of the studs can be made in one passes by means of an injection device with nozzles in number and with spacing in correspondence with the stud network to be obtained.
- the thickness compliance of the interconnector thus produced is given by the texture of the fabric 1 and the elasticity of the studs 4.
- the textile support used for the manufacture of a interconnector according to the invention is a nonwoven.
- the technique of manufacturing a nonwoven makes it possible to obtain a support of very variable characteristics which can be exactly adapted to the envisaged jobs of the interconnectors.
- a substrate is produced with from fibers with a diameter of less than 25 micrometers and a length less than 10 cm in loose bales, roughly untangled by a carding operation, lengthened by spreading on a conveyor belt, applied in several layers and then interlaced by needling.
- the substrate is then finished by gluing by adding an adhesive or by heat sealing depending on the fibers used.
- the conductive pads are put in place. to pads 4 of Figures 1 and 2, by injection through the nonwoven, of a conductive elastomer, then polymerized for example with ultraviolet.
- the injected elastomer resin does not fill a cavity but penetrates by diffusing into the thickness of the nonwoven, occupying thereby the interstices of the nonwoven continuously.
- the adjustment of the various manufacturing parameters of the support allows to adjust the nonwoven web to the specifications with regard to thickness, density, mechanical characteristics in Z, i.e. perpendicular to the plane of the tablecloth.
- the substrate thus obtained has a very fine structure and statistically uniform.
- Fibers of all kinds can be used.
- non-woven support is also economical and allows high production rates.
Abstract
Description
- la figure 1 représente schématiquement en vue de dessus un support textile tissé muni de plots conducteurs selon l'invention, et
- la figure 2 est une vue en coupe suivant la ligne II- II du dispositif de la figure 1.
Claims (7)
- Procédé de fabrication d'un interconnecteur pour la microconnectique caractérisé en ce qu'il consiste à constituer au travers d'un support mince formé d'un support textile (1) réalisé à partir d'un matériau non conducteur de l'électricité, au moins un plot (4) d'un matériau élastomère conducteur de l'électricité affleurant sur les deux faces dudit support textile (1).
- Procédé suivant la revendication 1, caractérisé en ce que lesdits plots conducteurs (4) sont réalisés par pénétration sous pression d'un élastomère polymérisé ensuite.
- Procédé suivant la revendication 2, caractérisé en ce que la pénétration est réalisée par injection sous pression à l'aide d'une seringue ou analogue.
- Procédé suivant la revendication 2, caractérisé en ce que la pénétration est réalisée par impression analogue à l'impression par sérigraphie de tissus imprimés.
- Procédé suivant la revendication 1, caractérisé en ce qu'on constitue simultanément une multiplicité de plots conducteurs (4) dans le support textile (1) suivant une distribution régulière, de pas déterminé, desdits plots (4), ou non.
- Interconnecteur réalisé conformément au procédé selon l'une quelconque des revendications 1 à 5.
- Interconnecteur selon la revendication 6, caractérisé en ce que le support est un support textile constitué par un non-tissé.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0011292A FR2813710A1 (fr) | 2000-09-05 | 2000-09-05 | Procede de fabrication d'un interconnecteur pour la microconnectique constitue d'un support textile a elements conducteurs traversants et interconnecteur ainsi obtenu |
FR0011292 | 2000-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1184942A1 true EP1184942A1 (fr) | 2002-03-06 |
Family
ID=8853978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01450016A Withdrawn EP1184942A1 (fr) | 2000-09-05 | 2001-09-05 | Procédé de fabrication d'un interconnecteur pour la microconnectique constitue d'un support textile à éléments conducteurs traversants et interconnecteur ainsi obtenu |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1184942A1 (fr) |
FR (1) | FR2813710A1 (fr) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3116348A1 (de) * | 1980-04-28 | 1982-09-09 | Deutsche Itt Industries Gmbh, 7800 Freiburg | "elektrische verbindungseinrichtung" |
US5163837A (en) * | 1991-06-26 | 1992-11-17 | Amp Incorporated | Ordered area array connector |
US5418051A (en) * | 1988-03-14 | 1995-05-23 | Fabric Coating Corporation | Internally coated webs |
-
2000
- 2000-09-05 FR FR0011292A patent/FR2813710A1/fr active Pending
-
2001
- 2001-09-05 EP EP01450016A patent/EP1184942A1/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3116348A1 (de) * | 1980-04-28 | 1982-09-09 | Deutsche Itt Industries Gmbh, 7800 Freiburg | "elektrische verbindungseinrichtung" |
US5418051A (en) * | 1988-03-14 | 1995-05-23 | Fabric Coating Corporation | Internally coated webs |
US5163837A (en) * | 1991-06-26 | 1992-11-17 | Amp Incorporated | Ordered area array connector |
Also Published As
Publication number | Publication date |
---|---|
FR2813710A1 (fr) | 2002-03-08 |
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