JP3875683B2 - Film-type electrical connection member - Google Patents

Description

  The present invention is an electrical connection member mainly used for connection with a wiring board such as a flexible printed circuit (FPC) or a board as an object to be connected, and more specifically, on an adhesive layer disposed on a flexible substrate. The adhesive film is disposed on the adhesive layer and the local area on the metal thin film terminal in the structure in which the metal thin film terminal is disposed on the adhesive film, and the adhesive layer is used for temporary fixing when connecting and fixing to the connection object. The present invention relates to a film-type electrical connecting member having a structure in which an adhesive film is provided for permanent fixing after temporary fixing.

  Conventionally, as an electrical connection member used for electrical connection and fixing to an electrical component such as a circuit board, for example, a heat pressure welding in which an adhesive pressure-sensitive adhesive layer is provided on an adhesive layer disposed on a base. Examples include a connector (see Patent Document 1) and a printed wiring board connection structure (see Patent Document 2) in which a thermal adhesive tape with a separator is disposed on a flexible substrate.

In addition, as a method for electrical connection and fixation between electrical components such as circuit boards, for example, a method of sandwiching conductive particles between circuit boards as a connection medium (electrical connection member) (see Patent Document 3), or A method is known in which a solder ball is sandwiched between circuit boards as a connection medium (electrical connection member) (see Patent Document 4).
JP-A-6-140089 (Summary) Japanese Utility Model Publication No. 7-26860 (Fig. 1) JP-A-5-74846 (summary) JP-A-8-148825 (Summary)

  In the case of the electrical connection members of Patent Document 1 and Patent Document 2 described above, in the thermocompression welding connector of Patent Document 1, bonding is performed with the conductor pattern on the mating surface to be connected and the linear conductive layer facing each other. The adhesive layer is pressed and bonded to the mating surface for positioning and fixing (temporary connection), and then the linear conductive layer is connected to the conductor pattern by heating and pressing the linear conductive layer. For this reason, it is necessary to accurately perform the alignment at the time of positioning and fixing, and not only the operation is complicated and difficult, but also when the alignment operation is re-executed, the adhesive once pressed and adhered It is difficult to handle because the strong adhesive adhesive layer must be peeled off and the positioning and positioning fixed again. There is a problem, and even in the connection structure of the printed wiring board disclosed in Patent Document 2, the heat-sensitive adhesive tape is simply melted after alignment to provide adhesiveness and flexibly connect the flexible board to the printed wiring board. Due to the structure, even if it is easy to redo the alignment work, it is necessary to heat the heat-sensitive adhesive tape after the alignment at the time of positioning and fixing correctly. There is a problem in that the connection cannot be performed with high stability and accuracy at all times because the position shift occurs when the tape is melted by heat (the yield is not excellent and the reliability is poor). In any of the electrical connection members of Patent Document 1 and Patent Document 2, there are not a few exposed portions of the conductive pattern, so soldering to another component often after mounting on an electrical device, etc. Like a worker when attached from the outside to the conductive pattern bouncing solder is at risk of causing conduction failure unless notice it, protected from the outside of the conductive patterns is a problem that not achieved sufficiently.

  On the other hand, in the method of sandwiching conductive particles as a connection medium (electrical connection member) between circuit boards described in Patent Document 3, when transferring conductive particles from the transfer film for electrical connection to the circuit board, transfer for electrical connection is performed. The primary pressure bonding is performed by combining the surface of the film where the conductive particles are held and the terminal surface of the circuit board. However, if there is a variation in the transfer state of the conductive particles at this time, it becomes a defective product. There is a problem in that the alignment work cannot be re-executed (retryability is poor). In the case of sandwiching solder balls as connection media (electrical connection members) between circuit boards described in Patent Document 4, connection between boards If the solder bonding state is poor because it cannot be temporarily connected (if there is a defect in the solder bonding), it is discarded as a defective product, or the solder is returned to a liquid state once However, if the solder is removed, the metal wiring layer may be soiled or damaged by the residual solder, and the connection cannot always be performed with high stability and accuracy (the yield is not excellent). In addition, in the case of any of the electrical connection members of Patent Document 3 and Patent Document 4, the exposed portion of the conductive pattern is not small in many cases, and often after mounting on an electrical device. If the solder bounces from the outside due to soldering to another part, etc. and adheres to the conductive pattern, there is a risk of causing a conduction failure if the operator does not notice it. There is a problem that it is not.

  The present invention has been made to solve such a problem, and its technical problem is that positioning and fixing can be performed accurately and accurately by facilitating re-alignment when connecting to the connection object. An object of the present invention is to provide a film-type electrical connecting member having a structure that enables highly accurate connection even when the connection object is between electrical components and that can sufficiently protect the conductive pattern from the outside.

  According to the present invention, the metal thin film terminal is disposed at a predetermined position on the pressure-sensitive adhesive layer disposed on the substrate, and the pressure-sensitive adhesive layer around the metal thin film terminal is bonded and fixed to the connection object. In the electrical connection member having a structure in which the metal thin film terminal is connected to the conductive pattern of the connection target object when it is applied, the metal thin film terminal is used for adhesion to the connection target object, and the adhesive layer and the predetermined position of the metal thin film terminal are provided. A film-type electrical connecting member having at least one adhesive film disposed on the pressure-sensitive adhesive layer and on the metal thin film terminal other than the predetermined portion so as to be exposed is obtained.

  Further, according to the present invention, in the film-type electrical connection member, the pressure-sensitive adhesive layer is used for temporary fixing when connecting and fixing to the connection object, and the adhesive film is connected to the connection object. At the time of fixing, a film-type electrical connecting member that is used for permanent fixing after temporary fixing with an adhesive layer is obtained.

  Furthermore, according to the present invention, in any one of the above-described film-type electrical connection members, the adhesive film is a film in which a predetermined cut pattern is formed so that predetermined portions of the pressure-sensitive adhesive layer and the metal thin film terminal are exposed. A mold electrical connecting member is obtained.

  In addition, according to the present invention, in any one of the above-described film-type electrical connection members, the adhesive film includes a plurality of adhesive films on the adhesive layer and the metal thin film terminal that extend in one direction. The pressure-sensitive adhesive layer that is spaced apart in the direction and is exposed from each of the pressure-sensitive adhesive layer and the metal thin film terminal in the vicinity of the plurality of adhesive films, or the cut pattern in the plurality of adhesive films And the film-type electrical connection member separately connected with respect to the several adjacent thing spaced apart as a connection target object which this metal thin film terminal arrange | positions on the same plane is obtained.

  On the other hand, according to the present invention, in any one of the above-described film-type electrical connection members, the base material is a flexible material, and the base material faces inward at a place where the adhesive film is not disposed, and A film-type electrical connecting member is obtained which is bent 180 degrees so that the adhesive film is arranged on the outside, and the both sides of the outside in the bent state are separately connected to different objects to be connected. . In this film-type electrical connecting member, the adhesive film is formed by preliminarily arranging a plurality of adhesive films and metal thin film terminals that are spaced apart in the one direction on the adhesive layer and the metal thin film terminal. It is preferably in a bent state obtained by bending twice, and is divided and arranged on both outer sides, and each is connected separately to a different object to be connected.

  On the other hand, according to the present invention, in any one of the above-described film-type electrical connection members, a film-type electrical connection member is obtained in which the adhesive film is bonded and cured by an external factor. In this film-type electrical connection member, the adhesive film can be selected from a thermosetting adhesive film or a thermoplastic adhesive film that is melt-cured by pressure or heating, or an ultraviolet-curable adhesive film that is cured by ultraviolet light. It is preferable that the selected one.

  In the case of the film-type electrical connection member of the present invention, the adhesive film is disposed on the adhesive layer and the local area on the metal thin film terminal in the structure in which the metal thin film terminal is disposed on the adhesive layer disposed on the substrate. Since the adhesive layer is used for temporary fixing when connecting and fixing to the connection object, and the adhesive film is used for permanent fixing after temporary fixing, the connection object and By using the pressure-sensitive adhesive layer for temporary fixing during connection fixing, positioning can be easily re-adjusted, positioning and fixing can be performed accurately and accurately, and permanent fixing of the adhesive film after temporary fixing allows continuous connection. In addition to being able to perform with high stability and high accuracy, the yield at the time of connection is excellent and the reliability is high, and the part not necessary for connection on the metal thin film terminal which is a conductive pattern is covered with an adhesive film Have That can sufficiently protect the conductive pattern from the outside (in the case where a predetermined cut pattern is formed on the adhesive film so as to expose a predetermined portion of the adhesive layer and the metal thin film terminal) It becomes. Incidentally, in the Japanese Patent Application No. 2002-164682 proposed by the present applicant, the adhesive film is sandwiched between the metal thin film (terminal) and the adhesive (adhesive layer). The terminal) is exposed and the metal thin film (terminal) needs to be protected with a tape or the like. However, in the film-type electrical connection member of the present invention, a portion not required for connection on the metal thin film terminal is an adhesive film. This is not necessary because it is covered with.

  Further, in the case of the film-type electrical connection member of the present invention, a plurality of adhesive films are arranged in one direction on the adhesive layer and the metal thin film terminal respectively extending in one direction, and Connection object in which the pressure-sensitive adhesive layer and the metal thin film terminal in the vicinity of the plurality of adhesive films, or the pressure-sensitive adhesive layer and the metal thin film terminal exposed from each of the cut patterns in the plurality of adhesive films are arranged on the same plane, respectively. The structure is such that it is connected separately to a plurality of adjacently spaced objects, or the base material is made of a flexible material, and the base material is located inside where the adhesive film is not disposed. And bend 180 degrees so that the adhesive film is arranged on the outside, and both sides of the outside in the folded state are separately for different objects to be connected. A structure having elasticity to be continued (further, a plurality of adhesive films are disposed in advance in one direction on the pressure-sensitive adhesive layer and the metal thin film terminal in advance and are separated from each other in one direction. A structure that is in a bent state obtained by bending 180 degrees, and is divided and arranged on both outer sides, and has elasticity that each is separately connected to a different object to be connected Therefore, even when the object to be connected is between electrical components (circuit boards), highly accurate connection is possible. In this case as well, the adhesive layer is used for temporary fixing, and the adhesive film is temporarily attached. By using it for the main fixing after the fixing, the re-alignment can be easily performed in the same manner, the positioning and fixing can be performed accurately and accurately, and the conductive pattern can be sufficiently protected from the outside.

  Furthermore, in the film-type electrical connection member of the present invention, the adhesive film is used as a material that is adhesively cured by an external cause, and is a thermosetting adhesive film or a thermoplastic adhesive film that is melt-cured by pressure or heating, or ultraviolet light. Since one selected from UV curable adhesive film to be cured is used, connection can be performed with high accuracy and stability by applying pressure, heating and UV irradiation with simple equipment. Therefore, the yield at the time of connection is surely excellent and the reliability is high.

  The film-type electrical connection member of the present invention is used for electrical connection and fixation to an electrical component such as a circuit board, which is a connection object, on an adhesive layer disposed on a substrate. A structure in which a metal thin film terminal is disposed at a predetermined location, and the metal thin film terminal is connected to the conductive pattern of the connection object when the adhesive layer around the metal thin film terminal is bonded and fixed to the connection object. In addition to being used for adhesion to the connection object, the adhesive layer and the metal thin film terminal are disposed on portions other than the predetermined location on the adhesive layer and the metal thin film terminal so as to expose the predetermined location. It has a structure having at least one adhesive film. However, in this film-type electrical connection member, the adhesive layer is used for temporary fixing when connecting and fixing the connection object, and the adhesive film is temporarily fixed after temporary fixing by the adhesive layer when connecting and fixing the connection object. It is preferable to use it for the purpose, and it is also preferable to form a predetermined notch pattern in the adhesive film so as to expose predetermined portions of the pressure-sensitive adhesive layer and the metal thin film terminal. It is also preferable that the adhesive film be bonded and cured by external factors such as pressure, heat, and ultraviolet rays.

  On the other hand, as another film-type electrical connection member of the present invention, the one used for electrical connection and fixation between electrical components such as a circuit board as a connection object is the basic structure of the previous form. In addition, a plurality of adhesive films are disposed in one direction on the adhesive layer and the metal thin film terminal respectively extending in one direction, and the adhesive layer in the vicinity of the plurality of adhesive films. The adhesive layer and the metal thin film terminal exposed from each of the metal thin film terminals or the cut patterns in the plurality of adhesive films are respectively spaced apart from each other as a plurality of connection objects arranged on the same plane. It is of a structure that is separately connected to each other. Alternatively, the base material is made of a flexible material, and is bent 180 degrees so that the base material faces inward and the adhesive film is placed outside in a place where the adhesive film is not disposed, Structure in which both sides of the outer side in the bent state are separately connected to different objects to be connected (further, on the adhesive film and the metal thin film terminal extending in each direction in advance) In a bent state obtained by bending a plurality of objects that are spaced apart in one direction by 180 degrees, and divided into both outer surfaces, each of which is connected A structure in which different things are connected separately). In any structure, the pressure-sensitive adhesive layer is used for temporary fixing when connecting and fixing to the connection object, and the adhesive film is used for main fixing after temporary fixing using the pressure-sensitive adhesive layer when connecting and fixing to the connection object. It is preferable. It is also preferable that the adhesive film be bonded and cured by external factors such as pressure, heat, and ultraviolet rays.

  FIG. 1 is a perspective view showing the basic structure of the film-type electrical connecting members 10 and 11 according to the first embodiment of the present invention as a flow of manufacturing procedures.

  The film-type electrical connection members 10 and 11 here are provided for electrical connection and fixation to electrical components such as circuit boards that are objects to be connected. Two strip-shaped metal thin films in parallel along the longitudinal direction on the disposed adhesive layer 2 (actually, the number considering the number of connection terminals on the electrical component side such as a circuit board as a connection object) The terminal 3 is provided, and each metal thin film terminal 3 is connected to the conductive pattern (conductive terminal) of the connection object when the adhesive layer 2 around the metal thin film terminal 3 is bonded and fixed to the connection object. In the structure, a ladder-like or grid-like cut pattern is formed so as to be used for adhesion to a connection object and to expose predetermined portions of the adhesive layer 2 and each metal thin film terminal 3. More than a predetermined place on the adhesive layer 2 and each metal thin film terminal 3 Adhesive film 4a which is arranged on the part, but structures with 4b.

  In these film-type electrical connection members 10 and 11, the pressure-sensitive adhesive layer 2 exposed from each cut pattern in the adhesive film 4a having a ladder-like cut pattern and the adhesive film 4b having a grid-like cut pattern is: This is used for temporary fixing when fixing the connection to the connection object. Further, the adhesive films 4a and 4b are used for main fixing after temporary fixing by the pressure-sensitive adhesive layer 2 when connecting and fixing to the connection object. For this reason, the adhesive films 4a and 4b may be any material that can be bonded and cured by external factors such as pressure, heat, and ultraviolet rays (UV), and specifically, heat curing that is melt-cured by pressurization or heating. One selected from the group consisting of the adhesive adhesive film, the thermoplastic adhesive film, and the ultraviolet curable adhesive film that is cured by ultraviolet rays may be used. The pressure-sensitive adhesive layer 2 is not particularly limited as long as it has resistance to the curing conditions caused by the external causes of the adhesive films 4a and 4b.

  The thicknesses of the adhesive films 4a and 4b are determined in consideration of the adhesive strength at the time of curing the connection with the connection object, and the case where the thickness is about several μm to several tens of μm is exemplified. it can. The ladder-shaped cut pattern and the grid-shaped cut pattern in the adhesive films 4a and 4b can be easily patterned by applying punching with a press or cutting by dicing, but the processing accuracy is several tens μm to several hundreds. The case where it is about μm can be exemplified.

  In any case, in the case of these film-type electrical connection members 10 and 11, the local area (predetermined location) of the adhesive layer 2 and each metal thin film terminal 3 is exposed from each cut pattern in the adhesive films 4a and 4b at the time of production. The adhesive layer 2 exposed from the notch patterns in the adhesive films 4a and 4b when the electrical connection and fixation to the electrical component such as the circuit board as the connection target is performed is performed. Can be temporarily fixed by pressing and adhering to the conductive pattern (conductive terminal) and other insulating parts in the metal plate, so that the conductive portions of the metal thin film terminals 3 exposed from the notch patterns and the conductive object in the connection object are first temporarily fixed. After aligning and bonding and fixing so that the local part of the pattern comes into contact, the adhesive films 4a and 4b are fixed after being temporarily fixed by the pressure-sensitive adhesive layer 2. And use, or pressing or heating, or make a connection fixed by adhesive cured by exposing the UV. Here, since the pressure-sensitive adhesive layer 2 having an area of about half or more covered with the adhesive films 4a and 4b is used for temporary fixing, the adhesive force during temporary fixing is not so strong, so that repositioning is easy. Therefore, positioning and fixing can be performed accurately and accurately. In addition, since it is possible to fix the adhesive films 4a and 4b after confirming that the positioning has been performed accurately and accurately after temporary fixing, the connection can be performed with high stability and high accuracy at all times. become. Furthermore, since the portions (other than the predetermined portions) that are not required for the connection on each metal thin film terminal 3 are covered with the adhesive films 4a and 4b, the portions that are not required for the connection, which is a conductive pattern, are sufficiently provided from the outside. Can protect.

  FIG. 2 is a perspective view showing, in stages, how electrical connection and fixation are performed between the substrates 5 and 6 with terminals, which are electrical components, using the film-type electrical connection member 10 ′ according to the second embodiment of the present invention. (A) is related to the basic structure of the film-type electrical connection member 10 ′, and (b) is between the substrates 5 and 6 with terminals by the film-type electrical connection member 10 ′ of FIG. FIG. 4C relates to the temporarily fixed state when the connection is fixed, and FIG. 4C relates to the final fixed state when the connection is fixed between the substrates 5 and 6 with terminals by the film-type electrical connection member 10 ′ of FIG. is there.

  First, referring to FIG. 2 (a), the film-type electrical connecting member 10 'here is parallel to the adhesive layer 2 disposed on the entire surface on one side of the base material 1 along the longitudinal direction. And four strips of metal thin film terminals 3 (in reality, the number of connection terminals on the side of electrical components such as circuit boards, which are objects to be connected) are arranged, and each metal thin film terminal 3 is surrounded by In the structure in which each metal thin film terminal 3 is connected to the conductive pattern (conductive terminal) of the connection object when the adhesive layer 2 is bonded and fixed to the connection object, the adhesive layer 2 and each metal thin film terminal Two adhesive films 4a each having a ladder-like cut pattern are disposed on one of the three layers 3 extending in one direction (longitudinal direction) and spaced apart in one direction (longitudinal direction).

  In addition, referring to FIGS. 2 (b) and 2 (c), the film-type electrical connecting member 10 'here is the pressure-sensitive adhesive layer 2 exposed from each of the notch patterns in each adhesive film 4a and each of the adhesive layers 4a and 10c. The metal thin-film terminals 3 are separately connected to the two substrates 5 and 6 with terminals as the electrical components that are adjacently separated as the connection objects arranged on the same plane. .

  That is, in the temporarily fixed state shown in FIG. 2B, each adhesive film of the film-type electrical connection member 10 ′ in which the two adhesive films 4a shown in FIG. The metal thin film terminals 3 are in contact with the terminals of the terminal-equipped substrates 5 and 6 in a one-to-one relationship, with the 4a side facing the band-shaped terminal side exposed on one surface side of the substrate with terminals 5 and 6. A temporarily fixed state is obtained by aligning and pressing. At this time, the regions on both sides in one direction (longitudinal direction) of the base material 1 of the film-type electrical connection member 10 ′ as shown by the dotted line are partially pressed, and from the ladder-like cut pattern of each adhesive film 4a The exposed metal thin film terminals 3 are in contact with the respective terminals of the substrates 5 and 6 with terminals in a one-to-one relationship, and the adhesive layer 2 exposed from the cut pattern around the metal thin film terminals 3 is the substrate 5 with terminals. , 6 and the surrounding insulating parts.

  If there is a misalignment and a misalignment is found, the pressure-sensitive adhesive layer 2 is peeled off and the alignment is performed again. At the time of temporary fixing to the connection place here, the adhesive layer 2 can be easily peeled off because there is a part covered with each adhesive film 4a, and the exposed surface of the adhesive layer 2 As long as it is not so dirty, the alignment can be repeated.

  Further, in the final fixed state shown in FIG. 2 (c), the region in almost all of the film-type electrical connection member 10 ′ on the substrates 5 and 6 with terminals as shown by the dotted lines is pressed in the direction shown by the arrow. However, according to the material of each adhesive film 4a, it pressurizes or heats and makes it melt-cure, or it irradiates and cures by irradiating with an ultraviolet-ray, and it carries out adhesive hardening, and is set as this fixing. Note that, in the actual fixing, since the positional deviation due to slippage or the like hardly occurs at the previous temporary fixing stage, the connection can be performed with high stability and high accuracy.

  It should be noted that the adhesive films 4a of the film-type electrical connection member 10 'in the second embodiment can be replaced with the respective adhesive films 4b having the grid-like cut patterns described in the first embodiment. In this case, the same effects can be obtained.

  FIG. 3 shows a state in which electrical connection and fixing between electrical components is performed using a film-type electrical connection member according to Example 3 of the present invention, and FIG. FIG. 4B is a side view of the state shown in FIG. 5A when the fixing plate is connected and fixed between the substrates 5 and 6 with terminals as electrical components using the load plate 7 by the members. FIG. 6C is a side view of the present fixing completed state in which the load plate 7 is removed through the states shown in FIGS.

  This film-type electrical connection member 1 extends in one direction (longitudinal direction) instead of using the adhesive film 4a having two ladder-like cut patterns in the film-type electrical connection member 10 'of the second embodiment. 3A and 3B, when a sheet of adhesive film 4a 'is disposed and temporarily fixed using the pressure-sensitive adhesive layer 2 exposed from the cut pattern, the base film is fixed as shown in FIGS. The point that the dedicated load plate 7 is placed and pressed on the back surface of the material 1 is different from the case of the second embodiment. Note that the size of the load plate 7 used for the main fixing is preferably equal to or sufficiently covering the adhesive film 4a '.

  When the load plate 7 is placed and pressed, a load is applied to the region shown by the dotted line in FIG. 3C, and the connection state in the main fixing becomes more accurate and good. Further, here, the film-type electrical connection member exposed between the substrates with terminals 5 and 6 is a conductive pattern because a considerable portion of the exposed portion is covered with the adhesive film 4a ′. It also shows that each metal thin film terminal 3 can be sufficiently protected from the outside.

  In addition, in the adhesive film 4a ′ of the film-type electrical connection member in Example 3, it is possible to replace it with each adhesive film 4b having the grid-like cut pattern described in Example 1 as it is. Even in this case, the same effects can be obtained.

  FIG. 4 shows a state in which electrical connection and fixing to a terminal-equipped film 8 as an electrical component is performed using a film-type electrical connection member 10 ″ according to Example 4 of the present invention. a) relates to a perspective view of a state in which the load plate 7 of the terminal-equipped film 8 is used, and FIG. 7 (b) shows a contact of the film-type electrical connecting member 10 ″ with the terminal-equipped film 8 of FIG. FIG. 6C relates to a perspective view in the final fixing state using the load plate 7 after temporary fixing in FIG.

  Here, first, as shown in FIG. 4A, a film 8 with a terminal as an electrical component is prepared. When the film 8 with a terminal is produced, for example, five conductive patterns (conductive Terminal film 8 having a terminal) with the insertion film 9 interposed inside such that each conductive terminal faces outward, and the insertion film 9 is pressurized or heated at the inner portion of the terminal film 8, or It may be bonded and fixed using ultraviolet rays, but if it is pressed using the load plate 7 during pressurization and heating, the finish at the time of production will be good.

  Next, as shown in FIG. 4B, the film-type electrical connection member 10 ″ according to Example 4 is longitudinally disposed on the pressure-sensitive adhesive layer 2 disposed on the entire surface on one side of the substrate 1. The metal thin film terminals 3 are arranged in parallel with each other, and each metal thin film terminal 3 is connected when the adhesive layer 2 around each metal thin film terminal 3 is bonded and fixed to the connection object. In the structure connected to the conductive pattern (conductive terminal), the adhesive layer 2 and each metal thin film terminal 3 are bonded without any cut pattern on the one extending in one direction (here, the longitudinal direction). The thing with the structure where the film 4c is arrange | positioned is made to contact one surface of the film 8 with a terminal, and is temporarily fixed.In this temporary fixation, the circumference | surroundings of the adhesive film 4c are pressed.

  Furthermore, as shown in FIG. 4C, in the final fixing after the temporary fixing, the load plate 7 is placed on the base material 1 including the periphery of the adhesive film 4c and pressed or heated, or is irradiated with ultraviolet rays. Thus, the fixing is performed by bonding and curing the adhesive film 4c.

  Note that the adhesive film 4c of the film-type electrical connection member 10 ″ in Example 4 also has the adhesive film 4a having the ladder-like cut pattern described in Example 1 as it is and the grid-like cut pattern. Each of the adhesive films 4b can be substituted, and in that case, the same operational effects can be obtained.

  By the way, in the case of the film-type electrical connection members 10, 10 ', 10 ", 11 described in the respective embodiments, it is possible to modify the structure with reference to the structure of the terminal-equipped film 8 described in the fourth embodiment. In addition, the base material 1 is made of a flexible material, and the base material 1 faces inward at a place where the adhesive films 4a, 4a ′, 4b, 4c are not disposed, and the adhesive films 4a, 4a ′, 4b, 4c is bent 180 degrees so as to be arranged on the outside, and both the outer sides in the bent state are elastically connected separately to different objects to be connected, and further bonded. 180 films 4a, 4a ', 4b, 4c are previously arranged in such a manner that a plurality of films 4a, 4a', 4b, 4c are arranged in advance in one direction on the adhesive layer 2 and each metal thin film terminal 3, respectively. Bend In the bent state obtained by the above, it is divided and arranged on both sides of the outside, and each has a structure having elasticity that is separately connected to a different one of the connection objects, Even when the object to be connected is between electrical components (circuit boards), it is possible to make a highly accurate connection, but in this case as well, the adhesive layer 2 is used for temporary fixing, and the adhesive film By using 4a, 4a ', 4b, and 4c for permanent fixing after temporary fixing, it becomes easy to perform re-positioning in the same manner, and high-precision connection is possible after positioning and fixing with high accuracy. Such a deformed form may be applied.

It is the perspective view which showed the basic structure of the film-type electrical connection member which concerns on Example 1 of this invention as the flow (flow) of preparation procedures. It is the perspective view which showed a mode that the electrical connection fixation between electrical components was performed according to the stage using the film type electrical connection member which concerns on Example 2 of this invention, (a) is the basics of a film type electrical connection member (B) is related to the temporarily fixed state when connected and fixed between the electrical parts by the film type electrical connection member of (a), (c) is between the electrical parts by the film type electrical connection member of (a). This is related to the fixed state when the connection is fixed. It shows a mode that electrical connection fixation between electric parts is performed using the film type electrical connection member according to Example 3 of the present invention, and (a) uses a load plate by the film type electrical connection member. (B) relates to a side view of the state of (a), (c) is a load through the states of (a) and (b). It is related with the side view of this fixed completion state which removed the board. It shows a mode that electrical connection fixation to an electrical component is performed using the film-type electrical connection member according to Example 4 of the present invention, and (a) shows a production state using a load plate of the electrical component. (B) is related to the perspective view of the state before the film-type electrical connecting member is brought into contact with the electrical component of (a) and temporarily fixed, and (c) is related to the temporary fixing of (b). It is related with the perspective view of this fixed state using the load board.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base material 2 Adhesive layer 3 Metal thin film terminal 4a, 4a ', 4b, 4c, 9 Adhesive film 5,6 Substrate with terminal 7 Load board 8 Film with terminal 10,10', 10 ", 11 Film type electrical connection Element

Claims (8)

  The metal thin film terminal is disposed at a predetermined position on the pressure-sensitive adhesive layer disposed on the base material, and the metal is bonded to the object to be connected around the metal thin film terminal. In the electrical connection member having a structure in which the thin film terminal is connected to the conductive pattern of the connection object, the thin film terminal is used for adhesion to the connection object, and a predetermined portion of the pressure-sensitive adhesive layer and the metal thin film terminal is exposed. Thus, the film-type electrical connection member comprising at least one adhesive film disposed on the pressure-sensitive adhesive layer and on the metal thin film terminal other than the predetermined portion.   The film-type electrical connection member according to claim 1, wherein the pressure-sensitive adhesive layer is provided for temporary fixation when the connection object is fixed to the connection object, and the adhesive film is connected to the connection object. A film-type electrical connecting member, which is provided for permanent fixing after temporary fixing by the pressure-sensitive adhesive layer during fixing.   3. The film-type electrical connection member according to claim 1, wherein a predetermined cut pattern is formed on the adhesive film so as to expose predetermined portions of the pressure-sensitive adhesive layer and the metal thin film terminal. A film type electrical connecting member.   The film-type electrical connection member according to any one of claims 1 to 3, wherein the adhesive film includes a plurality of adhesive films on the adhesive layer and the metal thin film terminal that extend in one direction. The adhesive layer and the metal thin film terminal in the vicinity of the plurality of adhesive films, or exposed from each of the cut patterns in the plurality of adhesive films, which are spaced apart in the one direction. A film-type electrical connecting member, wherein the adhesive layer and the metal thin film terminal are separately connected to a plurality of adjacently spaced objects as the connection objects arranged on the same plane, respectively. .   The film-type electrical connection member according to any one of claims 1 to 3, wherein the base material is a flexible material, and the base material faces inward at a place where the adhesive film is not disposed. In addition, the adhesive film is folded 180 degrees so as to be disposed on the outside, and both outer sides in the folded state are separately connected to different ones of the connection objects. Film-type electrical connection member.   6. The film-type electrical connection member according to claim 5, wherein a plurality of adhesive films are previously separated in one direction on the adhesive layer and the metal thin film terminal respectively extending in one direction. In the bent state obtained by bending the arranged ones by 180 degrees, the outer parts are divided and arranged on both sides, and each one is different from the one to be connected. A film-type electrical connection member characterized by being connected separately.   The film type electrical connection member according to claim 1, wherein the adhesive film is bonded and cured by an external factor. 8. The film-type electrical connection member according to claim 7, wherein the adhesive film is a thermosetting adhesive film or a thermoplastic adhesive film that is melt-cured by pressurization or heating, or an ultraviolet-curable adhesive that is cured by ultraviolet rays. A film-type electrical connection member, characterized in that the film-type electrical connection member is one selected from films for use.

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