JP2545097Y2 - Heat seal connector with separator - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to, be connected between the electrical circuit and the like
In particular, the present invention relates to a heat seal connector with a separator , particularly a liquid crystal display (LCD), electroluminescence (EL), plasma display (PDP), light emitting diode (LED), electrochromic display (ECD), and the like. Display panel and rigid printed wiring board (PCB) or flexible printed circuit board (FPC),
The present invention relates to a heat seal connector with a separator used for connection between PCB and PCB, between FPC and FPC, between PCB and FPC, and the like.

[0002]

2. Description of the Related Art At least a connection portion of a conventional heat seal connector to be connected to a substrate is usually provided with a protective substrate as a measure for its handling and preventing contamination of the connection surface until immediately before connection. A separator consisting only of material is attached to the surface provided with the conductive pattern and the anisotropic conductive bonding means and connected.
Parts and protect, separator consisting of only the protective substrate -
The tar is peeled off when used. This separator is
Simply apply a force due to static electricity to the heat seal connector surface.
In Sowase was or not, or non - city - Le connector - the
It is known that the adhesive layer itself is simply retained by the tackiness of the adhesive layer itself . Separator - data -, the ones used with releasability, particularly in the case of the latter, human
An adhesive having good releasability with respect to the adhesive constituting the seal connector is used.

[0003]

[Problem to be solved by the invention] However, only the protective base material
Heater with a separator using a separator consisting of
Sheet - Le connectors - in, for unknown reasons, separator - data - the heat - city - Le connector - heat Fit before or during storage transportation after the suit - city - Le Connector - contact the
Connection portion and separator - data - gap tends to occur Fuchaku of foreign matter such as dust and dirt and, conduction failure spear when this is connected to an electrical circuit may be causing - phrase or occur, also in connection early However, even if the electric conduction was normal, the inconvenience that migration intrusion was relatively likely to occur due to infiltration of water during use could not be avoided.

The object of the present invention is to effectively solve the above-mentioned drawbacks of the prior art, and particularly to the connection of a heat seal connector.
It is an object of the present invention to provide a heat seal connector with a separator which can be connected without any foreign matter adhered when connecting the unit and the connection terminal of the connection substrate .

[0005]

Means for Solving the Problems The present inventor has set forth a heath sheet.
Various methods of preventing foreign matter from adhering to the interface between the connector and the separator are examined.Even if foreign matter adheres to the connection part, attention should be paid to the fact that this should be removed. As a result of studying various prototypes of such methods and materials ,
Highly industrially desirable heat shield with separator
Nectar was found . That is, the present invention is in use
With a separator from which the separator is peeled off
- A, (b) an insulating flexible base - - Le connector conductive pattern on a scan film - down is formed, the conductive patterns -
Heat at least the connecting portion between the connection substrate is anisotropic conductive adhesive means is formed on the emission - city - Le connectors - arsenide - city -
(B) Protective substrate and one side of this protective substrate
( C) a heat shield with a separator, wherein the separator comprising the adhesive layer provided is adhered through the adhesive layer.
And the adhesive strength of the adhesive layer of the separator.
Is better for the protective substrate than for the heat seal surface
Is stronger, and more than that of the anisotropic conductive bonding means
A heat seal connector with a separator characterized by being strong .

[0006] The present invention of separator - data - with heat - tosylate - le co <br/> connector - used separator - data - is composed of a pressure-sensitive adhesive layer provided on one surface of the protective substrate Toko, heat - At the time of sealing
Non - tosylate - Le Connectors - Ru Monodea being peeled from.
The separator - data - protecting groups used in the material, can be used those conventionally, considering the handleability (rigid), the thickness of the protective substrate is 20μm or more, preferably at least 50μm Are advantageously used. The material of the protective substrate is not particularly limited, for example, paper, cloth,
Synthetic paper, polymer film and the like are practical. Coercive in its
Reduces the amount of dust and dirt generated when cutting protective substrates
For this purpose , synthetic paper and polymer films are preferred.

[0007] As the adhesive layer is provided et the one surface of the protective substrate, e.g., natural rubber and chloroprene rubber,
Nitrile rubber, acrylic rubber, styrene-butadiene-
Synthetic rubbers such as styrene block copolymer, styrene-ethylene-butylene-styrene block copolymer and styrene-isobutylene-styrene block copolymer are preferably used.

[0008] It is not preferable that the adhesive layer has an adhesive force that is too large or too small. For example, the adhesive layer is stronger than the adhesive force of the anisotropic conductive bonding means constituting the heat seal connector and has a higher heat resistance. - Le connector - peel strength to the, for example
At room temperature, it must be 100 g / cm or less.
It is important. The peel strength is preferably 30 g / cm
Hereinafter, it is more preferably 2 to 10 g / cm. If the adhesive force is too weak, foreign substances cannot be removed, and if it is too strong, peeling from the heat seal connector becomes difficult, and the heat seal connector breaks and breaks when peeling. Because it is easy to be.

The pressure-sensitive adhesive layer is formed by applying printing means such as screen printing or gravure printing to the pressure-sensitive adhesive component, coating means such as knife coater or bar coater, or dipping method. Ru obtained by forming on one surface of the protective substrate by, but may be a commercially available film with the rubber-based pressure-sensitive adhesive layer.

The heat seal connector used in the present invention is a known heat seal connector, for example, a conductive pattern is printed on an insulating film such as polyimide or polyester, or a metal foil such as Cu. After bonding, a conductive pattern is formed by an etching method or the like, and the conductive pattern is formed.
Although those anisotropic conductive adhesive means on the connection part between at least the connected board emissions are formed are mentioned, this anisotropic conductive adhesive means, for example, conductive patterns - Shirubedenpe to form the down - strike ( Add fine conductive particles to insulating matrix
Further conductive particles having a particle size 5~100μm to the ones) in
By mixing dispersed, this conductive pattern - conductive particles electrically conductive pattern by forming a down - exposed on emissions, the
An anisotropic conductive bonding means in which a heat bonding adhesive is formed on a conductive pattern by printing or the like ,
Without mixing conductive particles with a particle size of 5 to 100 μm
A conductive pattern is printed by an electric paste, and the conductive pattern is printed.
Anisotropic conductive adhesive in which conductive particles having an average particle size of 5 to 100 μm are uniformly dispersed in a heat-adhesive adhesive at a portion to be a connection portion of a conductive pattern by a method such as printing and transferring. It can also be formed on a surface.

[0011] Among these heat - city - Le connectors - anisotropic conductive adhesive means, said the separator - upon peeling a separator - - data data - and foreign matter adhered to the surface of the < In order to prevent foreign matter from adhering to the separator even when
It is preferable that the material does not exhibit tackiness at room temperature. For example, the peel strength when pressure-bonded to glass at room temperature of 20 kg / cm ² is desirably 10 g / cm or less.
And more than the adhesive strength of the adhesive layer constituting the separator.
We need to be weak .

[0012] The heat seal connector and the separator
The sticking is preferably performed before the heat seal connector is cut to a predetermined size, but may be performed after the cut. Further, since the separator in the present invention has an adhesive property on one side thereof, a slit may be provided at an appropriate portion of the protective base material, or the horizontal projection surface dimension of the heat seal connector may be reduced. separator of even larger size - data - the heat - Toshi - Turkey
Connectors - also easily peeled off at the time of use by sticking to
It can also be as. This is a pair of
When connecting the connected electric circuit boards separately, one circuit
The substrate heat - city - heat after Le connection - tosylate - Le Connector - the other part corresponding to the circuit board of the separator - data - only peel off the <br/> other circuit board and heat - city - Le connection So that after the heat seal connection to one circuit board
Therefore, even before connecting to the other circuit board, the other circuit
Foreign object in the connection portion of the substrate can be prevented from adhering.

Next, the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a schematic plan view of an example of a heat seal connector with a separator according to the present invention. FIG.
It is sectional drawing by the AA line. FIG. 3 is a sectional view of FIG.
It is sectional drawing by the B line. In FIG. 1, the separator and the resist are not particularly shown as being seen through. In the figure, a large number of parallel conductive patterns 2 are formed on the surface of an insulating flexible base film 1,
Anisotropic conductive adhesive containing a large number of conductive particles 3 dispersed therein is provided at both end regions of the multiple conductive patterns connected to the circuit board.
Means 4 are formed. A resist layer 5 is provided in a central region excluding the end of the conductive pattern of the heat seal connector.

On the other hand, a plastic film protective substrate 6
8 having a rubber adhesive layer 7 formed on one side of
Is a rubber-based adhesive layer on the entire surface of the heat seal connector.
7 and removed during use. The separator 8 has slits 9 to facilitate peeling.
Are formed. The heat seal connector with the separator is used when the protective base 6 and the rubber-based adhesive layer are used.
7 consists of Metropolitan separator - data - 8 is stripped.

[0015]

The heat seal connector with a separator according to the present invention is used by peeling off the separator when connecting the heat seal. Foreign matter
Does not adhere, even if the separation
Foreign matter adheres to the interface between the heater and heat seal connector.
Even if this is the case, it can be easily and completely removed, and at the time of connection, contamination of the connection portion with foreign matter is highly prevented.

[0016]

EXAMPLE A conductive pattern having a conductor width of 0.15 mm, a conductor pitch of 0.3 mm and a length of 40 mm was formed by screen printing a silver paste on one side of a polyester film having a thickness of 25 μm. Au-plated Ni particles having an average particle size of 25 μm in a polyester-based heat-adhesive so that the width of each connection portion is 5 mm at each end of the conductive pattern.
Anisotropic conductive adhesive mixed and dispersed in a capacity part is coated with an average thickness of 25.
Formed by screen printing to a thickness of μm and anisotropically conductive
Adhesion means was used. Next, a polyester-based resist ink is provided by screen printing so as to cover the entire exposed portion of the conductive pattern to form a heat seal connector.
Was. The heat - city - Le connectors - arsenide - city - the synthetic paper having a thickness of 125μm that an adhesive layer provided on one side with respect to the polyester-based heat-adhesive glue in Le surface having an adhesive strength of 3 g / cm adhesive After sticking through the layer , the conductive pattern 4
The heat seal connector with a separator according to the present invention was obtained by sizing so as to be 0 mm, the number of lines was 242, and both ends of the connection portion were 5 mm each.

The anisotropic conductive adhesive was pressed against glass at room temperature at a pressure of 20 kg / cm ² , but showed no tackiness. When the common electrode of the dot matrix LCD and the PCB with the driver IC were connected using the heat seal connector with the separator of the present invention stored in good condition for two weeks , 500 No leakage, disconnection, or other problems due to foreign matter in the connection portion were found. In the present embodiment as a comparative example separator - data - to no adhesive layer synthetic paper other same components with, made by the process separator - data - with heat - city - Le connectors - a work made <br / Then, when the evaluation was performed in the same manner as in the example, 50
Li found with the 0 Taichung 16 units due to foreign matter in the connection part -
H and disconnection were observed, resulting in display failure.

Further, at 500 ° C. and 95% R at 500 ° C. in Example and 484 in Comparative Example, which were initially free from display defects.
H, an environmental test was performed for 24 hours.
The display was normal, but display failure occurred in 7 out of the 484 comparative examples . Examination of the cause of the display defect, LCD ITO electrode of the connection portion-position cause electrolytic corrosion, see that is disconnected, the remote cause is heat - city - Le Connectors -
The particles were found to be foreign substances attached to the surface .

[0019]

The heat seal connector with a separator according to the present invention is a heat seal connector with a separator.
There is no risk of intrusion into the connection interface of the connector, and
Even if it invades, when it is separated by a separator
Since it has a function of removing foreign matter by adhering to the separator, there is no inconvenience caused by foreign matter at the time of connection with a circuit board or the like . As a result, not only the yield at the time of connection is improved, but also potential Since the occurrence of defects can be suppressed, a highly reliable connection structure between electric circuits is provided.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an example of a heat seal connector with a separator according to the present invention, excluding a resist layer and a separator layer.

FIG. 2 is a cross-sectional view taken along line AA in FIG. 1 to which a resist layer and a separator layer are added.

FIG. 3 is a cross-sectional view taken along line BB of FIG. 1 to which a resist layer and a separator layer have been added.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Flexible base film 2 ... Conductive pattern 3 ... Conductive particles 4 ... Anisotropic conductive bondingmeans  5 ... resist layer 6 ...protectionBase material 7 ... Adhesive layer 8 ... Separator layer 9 ... Slit

Claims (1)

(57) [Scope of request for utility model registration] 1. Separator is peeled off during use
A heat seal connector with a separator ,
(A) A heat conductive pattern in which a conductive pattern is formed on an insulating flexible base film, and an anisotropic conductive bonding means is formed on at least a connection portion of the conductive pattern with a substrate to be connected. (B) Protective substrate on the heat seal surface of the seal connector
If, separator consists of a pressure-sensitive adhesive layer provided on one surface of the protective substrate - data - were adhered via the adhesive layer (c) Se
It consists of a heat seal connector with a pallet.
The adhesive strength of the adhesive layer of the separator is higher than that of the heat seal surface.
Stronger against the protective substrate than the
A heat seal connector with a separator, which is stronger than that of the electroadhesive means .