EP0937315B1 - Fluid with multiple electroconductive surface particles - Google Patents
Fluid with multiple electroconductive surface particles Download PDFInfo
- Publication number
- EP0937315B1 EP0937315B1 EP97950135A EP97950135A EP0937315B1 EP 0937315 B1 EP0937315 B1 EP 0937315B1 EP 97950135 A EP97950135 A EP 97950135A EP 97950135 A EP97950135 A EP 97950135A EP 0937315 B1 EP0937315 B1 EP 0937315B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluid
- particles
- conductor tracks
- electrical conductors
- liquid crystal
- 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
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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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/04—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation using electrically conductive adhesives
Definitions
- the invention relates to a two opposite electrical conductors contacting fluid with several, having an electrically conductive surface Particles and with an electrically not surrounding the particles conductive medium, the particles having edges and / or tips.
- Such fluids are often used in microelectronics and are therefore known.
- a liquid crystal display as an electrode carrier two glass plates facing each other, used as electrical conductors trained conductor tracks are provided.
- the conductor tracks are created using the particles of the fluid contacted each other.
- a paste with silver particles is often used as the fluid used on the conductor tracks of a glass plate Screen printing is applied. After putting the two together Glass plates become intersecting interconnects of the glass plates with each other contacted.
- the silver paste is used to avoid short circuits between two neighboring ones Apply conductor tracks particularly small areas. This requires one particularly precise work when screen printing and assembling the Glass plates.
- spacers are to be arranged between the glass plates, which when the glass plates are pressed, the paste runs and thus an electrically conductive connection between two adjacent conductor tracks prevent.
- This fluid is therefore only suitable for electrode carriers, their conductor tracks have a very large distance between them.
- a fluid for avoiding spacers to be arranged separately which contains gold balls, each provided one Have diameter. These gold balls contact two opposite one another Conductor tracks and simultaneously provide a designated distance the glass plates to each other safely.
- the quantity ratio of the gold balls to the rest of the fluid is so small that the gold balls are not mutually touch.
- the fluid is anisotropically conductive, so that it is electrical Electricity conducts only across its greatest extent. The fluid can therefore can also be applied over adjacent conductor tracks without this a short circuit arises. This is nothing special compared to silver paste exact application of the fluid required.
- the known fluids have the disadvantage that the electrical conductors initially need to be cleaned thoroughly.
- the conductor tracks are one Liquid crystal display usually completely with an electrically non-conductive Orientation layer covered. When removing the orientation layer there is also a risk of damage to the conductor tracks.
- a fluid mentioned at the beginning of EP-A-0 562 569 is used as an adhesive electrical connection of conductor tracks of a circuit board by means of an electronic Known component.
- a similar to the fluid mentioned above Material discloses DE-A-41 38 779. This document deals with the Contacting electronic components with a carrier substrate, in particular with the contacting of ICs on glass or ceramic substrates.
- the invention is based on the problem of a fluid of the type mentioned Art to design so that opposite electrical conductors of two Electrode carrier of a liquid crystal display reliably contacted with each other without the ladder having to be cleaned particularly thoroughly.
- the electrical conductors must be applied before the Fluids cannot be cleaned or only from loose dirt.
- One on the ladders adhesive insulating varnish or orientation layer is from the edges or Penetration of the particles penetrates when the electrode carrier is pressed. The particles are therefore reliably contacted by the particles.
- the quantitative ratio the particle to the remaining fluid can optionally be dimensioned in this way be that the fluid conducts the electrical current in any direction or anisotropically conductive fluid is created.
- anisotropically conductive fluid this can also be used any method can be applied without juxtaposed Conductors are connected to one another in an electrically conductive manner. Therefore the fluid, for example, inexpensively by means of centrifugal technology on one of the Apply the electrode holder.
- the centrifugal technology is characterized by a high and uniform particle contamination and also enables high application speed.
- the particles can be like the gold balls of the known fluids have approximately the same size. This is one No need to use spacers to be arranged separately.
- the fiber optic sections have thanks to their Hardness also has the advantage of scratching the electrical conductors and thus to ensure reliable contacting.
- the particles have a high conductivity if they have one Have a silver or gold surface.
- the surface can optionally by coating the particles or through a massive design of the particles made of gold or Silver can be produced.
- a short circuit between two neighboring electrical conductors can be according to another advantageous development reliably avoid the invention when the particles are smaller than the lateral distances of the electrical Ladder to each other.
- the short circuit of two adjacent electrical conductors is particularly reliably avoided if the particles are 5 to 10 times smaller than the side ones Distances between the electrical conductors.
- the electrode carrier could be an additional adhesive to be applied fixed in position and against penetration of moisture can be sealed.
- Such an adhesive can be used according to another advantageous one Avoid training if that's the particles surrounding medium is chemically curing.
- the invention permits numerous embodiments. For further clarification of its basic principle is one of them shown in the drawing and is described below. This shows one in a single figure Sectional view through an outer area of a Liquid crystal display.
- the liquid crystal display has two opposite, electrode carriers designed as glass panes 1, 2 with conductor tracks 3 - 5 arranged thereon.
- the conductor tracks 3 - 5 are each with an electrically insulating Orientation layer 6, 7 coated.
- a Liquid crystal material 8 included in a space between the orientation layers.
- On both The sides of the liquid crystal display are each a polarizer 9, 10 and an additional reflector on the back 11 applied.
- the liquid crystal material 8 changes when an electrical voltage is applied on the conductor tracks 3 - 5 its light transmission.
- the electrode carriers 1, 2 are laterally with a fluid 12 glued, which the liquid crystal material 8 after seals on the outside.
- the fluid 12 contains a chemical curing, electrically non-conductive medium 13 with polygonal, arranged therein particles 14, the one Have surface made of a conductive material.
- This Particles 14 penetrate the orientation layers 6, 7 and contact opposing interconnects 3, 4 the electrode carrier 1, 2.
- the ratio the particle 14 to the medium 13 is so small that the Particles 14 do not touch each other. This is it Fluid 12 anisotropically conductive.
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
Die Erfindung betrifft ein zwei einander gegenüberstehende elektrische Leiter kontaktierendes Fluid mit mehreren, eine elektrisch leitfähige Oberfläche aufweisenden Partikeln und mit einem die Partikel umgebenden, elektrisch nicht leitfähigen Medium, wobei die Partikel Kanten und/oder Spitzen aufweisen.The invention relates to a two opposite electrical conductors contacting fluid with several, having an electrically conductive surface Particles and with an electrically not surrounding the particles conductive medium, the particles having edges and / or tips.
Solche Fluids werden in der Mikroelektronik häufig eingesetzt und sind damit bekannt. Beispielsweise hat eine Flüssigkristallanzeige als Elektrodenträger zwei einander gegenüberstehende Glasplatten, die mit als elektrische Leiter ausgebildeten Leiterbahnen versehen sind. Die Leiterbahnen werden mittels der Partikel des Fluids miteinander kontaktiert. Hierdurch erhält man eine Flüssigkristallanzeige, die an einer der Glasplatten beispielsweise mit einer Ansteuerelektronik verbunden werden kann. Als Fluid wird häufig eine Paste mit Silberpartikeln verwendet, die auf den Leiterbahnen der einen Glasplatte mittels Siebdruck aufgetragen wird. Nach einem Zusammenfügen der beiden Glasplatten werden sich kreuzende Leiterbahnen der Glasplatten miteinander kontaktiert. Die Silberpaste ist zur Vermeidung von Kurzschlüssen zweier benachbarter Leiterbahnen besonders kleinflächig aufzutragen. Dies erfordert ein besonders genaues Arbeiten beim Siebdruck und beim Zusammenfügen der Glasplatten. Zusätzlich sind zwischen den Glasplatten Abstandshalter anzuordnen, die bei einem Verpressen der Glasplatten ein Verlaufen der Paste und damit eine elektrisch leitende Verbindung zweier benachbarter Leiterbahnen verhindern. Dieses Fluid eignet sich daher nur für Elektrodenträger, deren Leiterbahnen einen sehr großen Abstand zueinander aufweisen.Such fluids are often used in microelectronics and are therefore known. For example, has a liquid crystal display as an electrode carrier two glass plates facing each other, used as electrical conductors trained conductor tracks are provided. The conductor tracks are created using the particles of the fluid contacted each other. This gives you a liquid crystal display, that on one of the glass plates, for example, with control electronics can be connected. A paste with silver particles is often used as the fluid used on the conductor tracks of a glass plate Screen printing is applied. After putting the two together Glass plates become intersecting interconnects of the glass plates with each other contacted. The silver paste is used to avoid short circuits between two neighboring ones Apply conductor tracks particularly small areas. This requires one particularly precise work when screen printing and assembling the Glass plates. In addition, spacers are to be arranged between the glass plates, which when the glass plates are pressed, the paste runs and thus an electrically conductive connection between two adjacent conductor tracks prevent. This fluid is therefore only suitable for electrode carriers, their conductor tracks have a very large distance between them.
Zur Vermeidung von separat anzuordnenden Abstandshaltern ist ein Fluid bekannt geworden, welches Goldkugeln enthält, die jeweils einen vorgesehenen Durchmesser aufweisen. Diese Goldkugeln kontaktieren zwei einander gegenüberliegende Leiterbahnen und stellen gleichzeitig einen vorgesehenen Abstand der Glasplatten zueinander sicher. Das Mengenverhältnis der Goldkugeln zu dem übrigen Fluid ist so klein, daß sich die Goldkugeln untereinander nicht berühren. Hierdurch ist das Fluid anisotrop leitfähig, so daß es den elektrischen Strom nur quer zu seiner größten Erstreckung leitet. Das Fluid kann deshalb auch über benachbarte Leiterbahnen aufgetragen werden, ohne daß hierdurch ein Kurzschluß entsteht. Dadurch ist im Vergleich zur Silberpaste kein besonders genaues Auftragen des Fluids erforderlich.A fluid is known for avoiding spacers to be arranged separately which contains gold balls, each provided one Have diameter. These gold balls contact two opposite one another Conductor tracks and simultaneously provide a designated distance the glass plates to each other safely. The quantity ratio of the gold balls to the rest of the fluid is so small that the gold balls are not mutually touch. As a result, the fluid is anisotropically conductive, so that it is electrical Electricity conducts only across its greatest extent. The fluid can therefore can also be applied over adjacent conductor tracks without this a short circuit arises. This is nothing special compared to silver paste exact application of the fluid required.
Die bekannten Fluids haben den Nachteil, daß die elektrischen Leiter zunächst gründlich gereinigt werden müssen. Beispielsweise sind die Leiterbahnen einer Flüssigkristallanzeige in der Regel vollständig mit einer elektrisch nicht leitenden Orientierungsschicht überzogen. Bei einem Entfernen der Orientierungsschicht besteht zudem die Gefahr der Beschädigung der Leiterbahnen.The known fluids have the disadvantage that the electrical conductors initially need to be cleaned thoroughly. For example, the conductor tracks are one Liquid crystal display usually completely with an electrically non-conductive Orientation layer covered. When removing the orientation layer there is also a risk of damage to the conductor tracks.
Ferner ist ein eingangs genanntes Fluid aus EP-A-0 562 569 als Klebstoff zur elektrischen Verbindung von Leiterbahnen einer Leiterplatte mittels eines elektronischen Bauteils bekannt. Einen dem eingangs genannten Fluid ähnlichen Werkstoff offenbart DE-A-41 38 779. Dieses Dokument befaßt sich mit der Kontaktierung elektronischer Bauelemente mit einem Trägersubstrat, insbesondere mit der Kontaktierung von ICs auf Glas- oder Keramiksubstraten.Furthermore, a fluid mentioned at the beginning of EP-A-0 562 569 is used as an adhesive electrical connection of conductor tracks of a circuit board by means of an electronic Known component. A similar to the fluid mentioned above Material discloses DE-A-41 38 779. This document deals with the Contacting electronic components with a carrier substrate, in particular with the contacting of ICs on glass or ceramic substrates.
Der Erfindung liegt das Problem zugrunde, ein Fluid der eingangs genannten Art so zu gestalten, daß einander gegenüberstehende elektrische Leiter zweier Elektrodenträger einer Flüssigkristallanzeige zuverlässig miteinander kontaktiert werden, ohne daß die Leiter besonders gründlich gereinigt werden müssen.The invention is based on the problem of a fluid of the type mentioned Art to design so that opposite electrical conductors of two Electrode carrier of a liquid crystal display reliably contacted with each other without the ladder having to be cleaned particularly thoroughly.
Dieses Problem wird erfindungsgemäß durch die Merkmale des kennzeichnenden
Teils des Patentanspruchs 1 gelöst.This problem is solved according to the invention by the features of the characteristic
Part of
Durch diese Gestaltung müssen die elektrischen Leiter vor dem Auftragen des Fluids nicht oder nur von losem Schmutz gereinigt werden. Eine auf den Leitern haftende isolierende Lack- oder Orientierungsschicht wird von den Kanten oder Spitzen der Partikel bei einem Verpressen der Elektrodenträger durchdrungen. Die Leiter werden deshalb von den Partikeln zuverlässig kontaktiert. Das Mengenverhältnis der Partikel zu dem übrigen Fluid kann wahlweise so bemessen sein, daß das Fluid den elektrischen Strom in jeder Richtung leitet oder ein anisotrop leitfähiges Fluid entsteht. Als anisotrop leitfähiges Fluid kann dieses mit beliebigen Verfahren aufgetragen werden, ohne daß nebeneinander angeordnete Leiter miteinander elektrisch leitend verbunden werden. Deshalb läßt sich das Fluid beispielsweise kostengünstig mittels Schleudertechnik auf einem der Elektrodenträger auftragen. Die Schleudertechnik zeichnet sich durch eine hohe und gleichmäßige Partikelkontamination aus und ermöglicht zudem eine hohe Auftragungsgeschwindigkeit. Die Partikel können wie die Goldkugeln des bekannten Fluids eine annähernd gleiche Größe aufweisen. Hierdurch ist eine Verwendung von separat anzuordnenden Abstandshaltern nicht erforderlich.Due to this design, the electrical conductors must be applied before the Fluids cannot be cleaned or only from loose dirt. One on the ladders adhesive insulating varnish or orientation layer is from the edges or Penetration of the particles penetrates when the electrode carrier is pressed. The particles are therefore reliably contacted by the particles. The quantitative ratio the particle to the remaining fluid can optionally be dimensioned in this way be that the fluid conducts the electrical current in any direction or anisotropically conductive fluid is created. As an anisotropically conductive fluid, this can also be used any method can be applied without juxtaposed Conductors are connected to one another in an electrically conductive manner. Therefore the fluid, for example, inexpensively by means of centrifugal technology on one of the Apply the electrode holder. The centrifugal technology is characterized by a high and uniform particle contamination and also enables high application speed. The particles can be like the gold balls of the known fluids have approximately the same size. This is one No need to use spacers to be arranged separately.
Die Partikel lassen sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung besonders kostengünstig herstellen, wenn die Partikel beschichtete Glasfaserabschnitte sind. Die Glasfaserabschnitte haben dank ihrer Härte zudem den Vorteil, die elektrischen Leiter anzukratzen und damit eine sichere Kontaktierung zu gewährleisten.According to another advantageous development of the Manufacture invention particularly inexpensively if the particles coated Fiber sections are. The fiber optic sections have thanks to their Hardness also has the advantage of scratching the electrical conductors and thus to ensure reliable contacting.
Die Partikel haben eine hohe Leitfähigkeit, wenn sie eine Oberfläche aus Silber oder Gold aufweisen. Die Oberfläche kann wahlweise durch eine Beschichtung der Partikel oder durch eine massive Gestaltung der Partikel aus Gold oder Silber erzeugt werden.The particles have a high conductivity if they have one Have a silver or gold surface. The surface can optionally by coating the particles or through a massive design of the particles made of gold or Silver can be produced.
Ein Kurzschluß zweier benachbarter elektrischer Leiter lässt sich gemäß einer anderen vorteilhaften Weiterbildung der Erfindung zuverlässig vermeiden, wenn die Partikel kleiner sind als die seitlichen Abstände der elektrischen Leiter zueinander.A short circuit between two neighboring electrical conductors can be according to another advantageous development reliably avoid the invention when the particles are smaller than the lateral distances of the electrical Ladder to each other.
Der Kurzschluß zweier benachbarter elektrischer Leiter wird besonders zuverlässig vermieden, wenn die Partikel um den Faktor 5 bis 10 kleiner sind als die seitlichen Abstände der elektrischen Leiter zueinander.The short circuit of two adjacent electrical conductors is particularly reliably avoided if the particles are 5 to 10 times smaller than the side ones Distances between the electrical conductors.
Die Elektrodenträger könnten mittels eines zusätzlich aufzutragenden Klebers in ihrer Position fixiert und gegen ein Eindringen von Feuchtigkeit abgedichtet werden. Ein solcher Kleber lässt sich gemäß einer anderen vorteilhaften Weiterbildung vermeiden, wenn das die Partikel umgebende Medium chemisch aushärtend ist.The electrode carrier could be an additional adhesive to be applied fixed in position and against penetration of moisture can be sealed. Such an adhesive can be used according to another advantageous one Avoid training if that's the particles surrounding medium is chemically curing.
Die Erfindung lässt zahlreiche Ausführungsformen zu. Zur weiteren Verdeutlichung ihres Grundprinzips ist eine davon in der Zeichnung dargestellt und wird nachfolgend beschrieben. Diese zeigt in einer einzigen Figur eine Schnittdarstellung durch einen äußeren Bereich einer Flüssigkristallanzeige. The invention permits numerous embodiments. For further clarification of its basic principle is one of them shown in the drawing and is described below. This shows one in a single figure Sectional view through an outer area of a Liquid crystal display.
Die Flüssigkristallanzeige hat zwei einander gegenüberstehende,
als Glasscheiben ausgebildete Elektrodenträger
1, 2 mit darauf angeordneten Leiterbahnen 3 - 5. Die Leiterbahnen
3 - 5 sind jeweils mit einer elektrisch isolierenden
Orientierungsschicht 6, 7 überzogen. In einem Zwischenraum
zwischen den Orientierungsschichten ist ein
Flüssigkristall-Material 8 eingeschlossen. Auf beiden
Seiten der Flüssigkristallanzeige sind jeweils ein Polarisator
9, 10 und auf ihrer Rückseite zusätzlich ein Reflektor
11 aufgetragen. Das Flüssigkristall-Material 8
verändert bei einem Anlegen einer elektrischen Spannung
an den Leiterbahnen 3 - 5 seine Lichtdurchlässigkeit.The liquid crystal display has two opposite,
electrode carriers designed as
Die Elektrodenträger 1, 2 sind seitlich mit einem Fluid
12 verklebt, welches das Flüssigkristall-Material 8 nach
außen hin abdichtet. Das Fluid 12 enthält ein chemisch
aushärtendes, elektrisch nicht leitfähiges Medium 13 mit
mehrkantigen, darin angeordneten Partikeln 14, die eine
Oberfläche aus einem leitfähigen Material aufweisen. Diese
Partikel 14 durchdringen die Orientierungsschichten 6,
7 und kontaktieren einander gegenüberstehende Leiterbahnen
3, 4 der Elektrodenträger 1, 2. Das Mengenverhältnis
der Partikel 14 zu dem Medium 13 ist so gering, dass die
Partikel 14 einander nicht berühren. Hierdurch ist das
Fluid 12 anisotrop leitend.The
Claims (6)
- A fluid contacting two mutually opposite electrical conductors and comprising a plurality of particles having an electrically conductive surface, and comprising an electrically non-conductive medium surrounding the particles, wherein the particles have edges and/or tips, characterized in that the particles (14) of the fluid (12) contact the electric conductors (3, 4), that the electric conductors (3, 4) are arranged on a respective electrode support (1, 2) of a liquid crystal display and that the fluid (12) glues together the electrode supports (1, 2) sealing the liquid crystal material (8) disposed between them toward the exterior.
- The fluid as claimed in claim 1, characterized in that the particles (14) are coated glass fiber sections.
- The fluid as claimed in claim 1 or 2, characterized in that the particles (14) have a surface made of silver or gold.
- The fluid as claimed in at least one of the preceding claims, characterized in that the particles (14) are smaller than the lateral distances between the electrical conductors (conductor tracks 3 to 5).
- The fluid as claimed in at least one of the preceding claims, characterized in that the particles (14) are by a factor of 5 to 10 smaller than the lateral distances between the electrical conductors (conductor tracks 3 to 5).
- The fluid as claimed in at least one of the preceding claims, characterized in that the medium (13) surrounding the particles (14) hardens chemically.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19646287 | 1996-11-11 | ||
| DE19646287A DE19646287A1 (en) | 1996-11-11 | 1996-11-11 | Fluid with several particles having an electrically conductive surface |
| PCT/EP1997/006176 WO1998021781A1 (en) | 1996-11-11 | 1997-11-06 | Fluid with multiple electroconductive surface particles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0937315A1 EP0937315A1 (en) | 1999-08-25 |
| EP0937315B1 true EP0937315B1 (en) | 2001-09-05 |
Family
ID=7811148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97950135A Expired - Lifetime EP0937315B1 (en) | 1996-11-11 | 1997-11-06 | Fluid with multiple electroconductive surface particles |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0937315B1 (en) |
| DE (2) | DE19646287A1 (en) |
| WO (1) | WO1998021781A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7034403B2 (en) | 2003-04-10 | 2006-04-25 | 3M Innovative Properties Company | Durable electronic assembly with conductive adhesive |
| US7695804B2 (en) | 2003-04-10 | 2010-04-13 | 3M Innovative Properties Company | Heat-activatable adhesive |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2350853A1 (en) * | 2001-06-15 | 2002-12-15 | Groupe Minutia Inc. | Method of establishing electrical conductivity between oxide-coated electrical conductors |
| DE102016203386B4 (en) * | 2015-03-02 | 2021-03-04 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Würzburg | Commutator motor |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT307522B (en) * | 1970-12-21 | 1973-05-25 | Electrovac | Liquid crystal cell and process for their manufacture |
| JPS5229754A (en) * | 1975-09-01 | 1977-03-05 | Mitsubishi Electric Corp | Image display sealing method |
| JPS52141249A (en) * | 1976-05-20 | 1977-11-25 | Seiko Epson Corp | Spacer for display panel |
| JPS5770522A (en) * | 1980-10-20 | 1982-05-01 | Matsushita Electric Ind Co Ltd | Liquid crystal display panel |
| JPS62217694A (en) * | 1986-03-18 | 1987-09-25 | ダイソー株式会社 | Circuit connection |
| JPS6433808A (en) * | 1986-10-18 | 1989-02-03 | Japan Synthetic Rubber Co Ltd | Conductive particle and conductive adhesive including it |
| DE4138779A1 (en) * | 1991-11-26 | 1993-07-29 | Lcd Mikroelektronik Dr Hampel | Contacting integrated circuit on flexible circuit board, glass or ceramic substrate - fixing IC using organic resin which contains highly conductive particles with irregular structure |
| EP0562569A3 (en) * | 1992-03-25 | 1993-11-10 | Molex Inc | Anisotropic adhesive for fixing an electronic component to a printed circuit module |
-
1996
- 1996-11-11 DE DE19646287A patent/DE19646287A1/en not_active Withdrawn
-
1997
- 1997-11-06 EP EP97950135A patent/EP0937315B1/en not_active Expired - Lifetime
- 1997-11-06 WO PCT/EP1997/006176 patent/WO1998021781A1/en active IP Right Grant
- 1997-11-06 DE DE59704552T patent/DE59704552D1/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7034403B2 (en) | 2003-04-10 | 2006-04-25 | 3M Innovative Properties Company | Durable electronic assembly with conductive adhesive |
| US7695804B2 (en) | 2003-04-10 | 2010-04-13 | 3M Innovative Properties Company | Heat-activatable adhesive |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59704552D1 (en) | 2001-10-11 |
| EP0937315A1 (en) | 1999-08-25 |
| WO1998021781A1 (en) | 1998-05-22 |
| DE19646287A1 (en) | 1998-05-14 |
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