JP3462163B2 - Spacer tape for TAB tape - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TAB tape spacer tape, and more particularly to a TAB tape spacer tape capable of solving a contamination problem due to dust generated by scraping the tape edge portion during winding. It relates to a manufacturing method.

[0002]

2. Description of the Related Art Conventionally, a TAB for holding electronic components for mounting.
When the tape is wound on the reel, in order to prevent the TAB tapes from contacting each other, a TAB tape spacer tape (hereinafter, simply referred to as a spacer tape) is wound on the back surface or the front surface of the TAB tape. .

In this spacer tape, a roll of synthetic resin film such as polyethylene terephthalate is cut into a tape roll of a predetermined width by using, for example, a slitter, and an antistatic agent is applied to the tape main body fed from the tape roll, followed by, for example, embossing. It is manufactured by a process of providing a large number of protrusions protruding in the thickness direction of the tape body at predetermined intervals in the longitudinal direction on both side edges in the width direction by insert processing or the like.

The width of the tape body is standardized, for example, 35 mm, 48 mm, 70 mm, corresponding to the width of the TAB tape, and the protrusion is arranged in the width of the tape body.

As the protrusion, for example, Japanese Patent Publication No. 8-19
As disclosed in Japanese Patent Publication No. 16-16, a tape which projects on both sides in the thickness direction of a tape, for example, Japanese Utility Model Publication No. 6-449.
As described in Japanese Unexamined Patent Publication No. 39-39, some tapes are projected on one side of the tape.
As disclosed in Japanese Patent Publication No. 14, there are cases in which two types of protrusions, which are protrusions protruding to the front surface side and protrusions protruding to the back surface side, which are alternately arranged in the longitudinal direction, are used. Further, the shape of the projection is not particularly limited, and any shape such as a semicylindrical shape, a hemispherical shape, a spherical shape, and a peak (valley shape) is adopted.

The distance between these protrusions in the longitudinal direction of the tape body is
Although not particularly limited, when positioning sprocket holes are formed in the TAB tape such as a TAB tape at a predetermined interval in the longitudinal direction, the sprocket hole interval may be set to be, for example, 1 to 1 of the sprocket hole intervals. It is suggested to adopt a determined spacing such as 10 times.

[0007]

As described above, in the conventional spacer tape, the protrusions are formed in the width of the tape body having the standardized width, so that both side edges of the spacer tape are formed by slitting. It will consist of the edges of the cut tape. Therefore, the cross-sectional shape of both side edges of the spacer tape is angular, and when this spacer tape is wound around the reel together with the TAB tape, both side edges of the tape body come into contact with the flange of the reel and are scraped or worn. To do Then, the shavings and abrasion debris adhere to the TAB tape to cause a contamination problem.

The present invention solves the problems of the prior art,
It is an object of the present invention to provide a TAB tape spacer tape capable of solving a contamination problem caused by scraps generated by abrasion or abrasion of the tape edge portion during winding.

[0009]

A spacer tape for a TAB tape according to the present invention (hereinafter referred to as the present invention) is a tape main body with a predetermined interval in the longitudinal direction of each side edge of the tape main body. In order to achieve this object, the following technical means is adopted in the TAB tape spacer tape provided with a large number of protrusions protruding to the side.

That is, the protrusions are formed so that the distance between the outer end faces of the protrusions on both sides is equal to a predetermined tape width, and the outer end faces of each protrusion are formed in an outwardly convex shape. The technical means that the width of the tape body between the protrusions is formed smaller than the predetermined tape width is adopted.

In the present invention, the outward convex shape of the outer end surface of each projection is not particularly limited as long as it projects outward in the width direction of the tape body, but in particular, it does not contact the flange of the reel. It is desirable that the convex spherical surface is formed so that shavings and abrasion debris are not generated as much as possible.

With this structure, the outer end surfaces of the outwardly convex projections are arranged in the longitudinal direction on both outer edges of the spacer tape, and the side edges of the tape body are inside the predetermined tape width. Since the spacer tape is formed at a small width, that is, when the spacer tape is wound around the reel together with the TAB tape, the side edge of the tape body having an angular cross-section does not come into contact with the reel flange, and the outer end of the protrusion is prevented. The part comes into contact with the flange of the reel.

Here, since the outer end surface of the projection is formed in an outwardly convex shape that is slippery, the tape edge is hardly scraped off or worn during winding, and during winding, It is possible to prevent the generation of scraps due to the contact of the tape edge with the reel, or
The contamination problem caused by shavings can be solved.

Further, according to the present invention, the T which is superposed on the T
The AB tape and the protrusion having a circular or partially circular cross-section can be brought into point contact with each other, which can prevent the abrasion waste of the spacer tape or the TAB tape during winding. It is possible to solve the contamination problem that occurs when dust adheres to the TAB tape. Hereinafter, the present invention will be described in more detail.

In the present invention, the material of the tape body is not particularly limited, and for example, steel including stainless steel, iron,
Metals such as copper, aluminum alloys and brass, synthetic resins such as polyethylene terephthalate, and paper can be used.

Since the tape body is required to have conductivity in order to prevent charging, therefore, when an electrically insulating material is used for the tape body, the tape body and the protrusions It is desirable to provide a conductive layer made of a metal, a conductive paint, a conductive synthetic resin, or the like on the surface of one side or both sides, or to adopt a laminated structure with a conductive layer sandwiched in the middle. As a method for forming the conductive layer, a thin film forming technique such as printing, painting, foil stamping, vapor deposition, sputtering or ion plating is adopted. or,
When the tape body and the protrusions are made of synthetic resin, the conductive material powder may be kneaded into the resin.

In the present invention, the material of the protrusion is not particularly limited, but the same material as the tape body or a material different from the tape body may be used. Specifically, for example, steel including stainless steel, metals such as iron, copper, aluminum alloys and brass, and synthetic resins such as polyethylene terephthalate can be mentioned.

In the present invention, each projection is formed so that the distance between the outer end faces of the projections on both sides is equal to the predetermined tape width. The predetermined tape width here is TA.
The tape width is set according to the width of the B tape and the flange distance of the reel on which the present invention is wound, and is, for example, 35 m.
Conventional standardized tape widths such as m, 48 mm, 70 mm are adopted.

The shape of the projection is such that the outer end surface thereof is outwardly convex, and in particular, in order to reduce the contact with the reel, it is preferably formed into a convex spherical surface. There is no other limitation on the shape in side view. Here, for example, if protrusions are formed in the same shape on both sides of the tape body, such as a spherical shape, an elliptical sphere shape, a bales shape, or a semi-cylindrical shape protruding from one side of the tape body, the protrusions are formed on the TAB tape. Also makes point contact or line contact on the curved surface that is convexly curved to the TAB tape side,
This is advantageous because the protrusions are less likely to be scraped off by the TAB tape, and the problem of contamination can be prevented more reliably.

Further, according to the present invention, the T which is superposed thereon
The AB tape and the protrusion having a circular or partially circular cross-section can be brought into point contact with each other, which can prevent the abrasion waste of the spacer tape and the TAB tape during winding. It is possible to solve the contamination problem that occurs when dust adheres to the TAB tape.

Although not particularly limited in the present invention, each projection of the present invention may be formed with a recess for aligning the side edge of the TAB tape.

The size of the protrusion of the present invention is not particularly limited, and can be freely designed in consideration of the size of the electronic component carried on the TAB tape.

In the present invention, the projections are formed in a spherical shape projecting in both front and back directions centering on the tape body, or the projections on the side edges of the tape body project half outwardly in the width direction. It may be configured as follows.

In the present invention, the side edges of the tape body between the protrusions may be formed so as to be recessed closer to the center of the tape than the outer end faces of the protrusions, but the recessed size is not particularly limited. However, for example, when a spherical projection is used, it may be recessed by the radius of the projection.

In the present invention, as a method of manufacturing the TAB tape spacer tape, it is possible to integrally form the tape main body and the projection by, for example, profile extrusion molding or press molding, but to reduce the manufacturing cost. To
It is desirable that the tape body and the protrusion are formed separately from each other and fixed to both side edges of the tape body by insert processing, adhesion, caulking or the like.

When the tape body and the protrusions are formed separately, the tape body has a predetermined width, that is, standardized by a conventional method such as a slitter made of a synthetic resin film roll such as polyethylene terephthalate. Dimensions smaller than the tape width, eg 34 mm, 47 mm,
It may be manufactured by cutting into a tape roll having a width of 69 mm or the like.

In the present invention, the tape body may be formed in a strip shape without a simple opening, but may be formed in a ladder shape or a lattice shape in which a part of the tape shape is removed by punching or the like. .

The tape body of the present invention may be made of a good electric conductor typified by a metal such as stainless steel, aluminum alloy, copper or brass, and a member having an electric insulation typified by polyethylene terephthalate, for example, a synthetic material. It may be made of resin.

When the tape body is made of an electrically insulating material, it is desirable to form a conductive film on one side or both sides of the tape body, if necessary, in order to prevent charging. As a method of forming this conductive film, printing,
Any thin film forming technique such as vapor deposition, ion plating, and sputtering can be adopted. When the tape body is made of electrically insulating synthetic resin, in addition to this, the powder of the conductive material is mixed into the resin to impart conductivity to the tape body itself. May be prevented from being charged.

Examples of the conductive material forming the conductive film or the conductive material mixed with the resin include metals such as gold, silver, copper, aluminum, steel including stainless steel, and iron,
Known conductive materials such as tin oxide, zinc oxide, indium oxide, and metal oxides such as ITO may be used.

In the present invention, the pitch for forming the protrusions,
That is, the interval in the longitudinal direction of the tape body is not particularly limited, but it is preferable that the tape body is formed at a pitch of 1 to 10 times the pitch of the positioning sprocket holes of the TAB tape. If the pitch of the projections is too small, it is not preferable because it is difficult in terms of manufacturing technology to provide the projections of a sufficient size, and if the pitch of the projections is too large, it becomes meaningless to provide the projections.

[0032]

As described above, according to the present invention, the outer end of the protrusion having the above-mentioned structure and formed in a slippery shape when wound on a reel comes into contact with the reel, and the spacer tape is scraped. Therefore, it is possible to obtain the effect of preventing abrasion.

Further, according to the present invention, the T which is superposed on the T
The AB tape and the protrusion having a circular or partially circular cross-section make point contact with each other, which prevents the abrasion of the spacer tape or the TAB tape from being generated during the winding operation, and the abrasion of the AB tape and the TAB tape. It is possible to obtain the effect of eliminating the contamination problem caused by the adherence to the.

[0034]

BEST MODE FOR CARRYING OUT THE INVENTION A spacer tape for TAB tape according to an embodiment of the present invention will be described in detail with reference to the drawings.

As shown in the plan view of FIG. 1, a TAB tape spacer tape according to an embodiment of the present invention has a tape body 1 having a predetermined interval p in the longitudinal direction of each side edge of the tape body 1. Is provided with a large number of protrusions 2 protruding on both sides in the thickness direction.

The tape body 1 is slittered to form a polyethylene terephthalate film roll having a width ω smaller than a predetermined tape width W, for example, 34 mm, 47.
mm and 69 mm, the tape is rolled out, and if necessary, an antistatic material is applied to one surface or both surfaces thereof to form a conductive film.

The projection 2 is made of polyethylene terephthalate, for example, and is formed in a spherical shape having a slit groove 2a as shown in the sectional view of FIG. 2, and a radius is formed on a side edge portion of the tape body 1 by insert processing. 1 is fixed to the tape body 1 by arranging it so that the distance between the outer end surfaces of the protrusions 2 on both sides becomes equal to a predetermined tape width W, as shown in FIG.

In the spacer tape thus produced, the protrusions 2 are arranged such that the distance between the outer end faces of the protrusions 2 on both sides is equal to a predetermined tape width W, and the outer end faces of the respective protrusions 2 are arranged. Is formed into a spherical surface that is convex outward.
Further, the side edge of the tape body 1 between the protrusions 2 has the above-mentioned protrusions 2.
Is formed so as to be recessed closer to the center side of the tape than the outer end surface of.

Therefore, when this spacer tape is wound on a reel, the outer ends of the protrusions 2 on both sides come into contact with the flange of the reel, and the both ends of the tape body 1 do not come into contact with the flange of the reel. Further, since the outer end surface of each protrusion 2 is formed in a spherical shape that is outwardly convex, each protrusion 2 slips easily even if it comes into contact with the peripheral edge of the flange of the reel, and the spacer tape is scraped off by the reel or friction is generated. Almost completely eliminated by scraping.

Further, according to this embodiment, since each projection 2 is formed in a spherical shape, the projection 2 comes into point contact with the TAB tape, and the projection 2 is hard to be scraped off by the TAB tape. Generation of scraps due to contact with TAB tape,
It is possible to more reliably prevent the contamination problem due to the waste of the fixed contact plate.

Further, according to this embodiment, the TAB tape made of another tape and the projection 2 having a circular or partially circular cross section are point-contacted with each other, so that a spacer tape or another tape is wound at the time of winding. It is possible to prevent the generation of abrasion debris of the TAB tape made of, and it is also possible to solve the contamination problem that occurs when these debris adhere to the TAB tape made of another tape.

As shown in the perspective view of FIG. 3, the spacer tape for TAB tape according to another embodiment of the present invention is a recess for positioning the side edge of the TAB tape 4 made of another tape on the upper portion of each protrusion 2. 5 is formed.

Since the other construction, operation and effect of this embodiment are the same as those of the above-mentioned one embodiment, these explanations are omitted to avoid duplicate explanation.

As shown in the perspective view of FIG. 4, a spacer tape for TAB tape according to another embodiment of the present invention is provided with a partially spherical projection 2 having a flat rear surface. or,
On the surface side of the protrusion 2, a recess 5 for positioning the side edge of the TAB tape 4 is formed.

Since the other constructions, functions and effects of this embodiment are the same as those of the above-mentioned one embodiment, these explanations are omitted to avoid redundant explanation.

A spacer tape for TAB tape according to still another embodiment of the present invention shown in the side view of FIG.
Two kinds of protrusions 2, a hemispherical protrusion 2 convex on the front surface side of the tape body 1 and a hemispherical protrusion 2 convex on the back surface side, are alternately arranged in the longitudinal direction of the tape body 1.

Since the other constructions, operations and effects of this embodiment are the same as those of the above-mentioned embodiments, their explanations are omitted to avoid duplication.

In yet another embodiment of the present invention shown in the exploded perspective view of FIG. 6, a spacer tape having a tape body 1 having a predetermined length in the longitudinal direction can be added to form a desired length. The tape-shaped male shape 9a provided at one end of one tape body 1 and the female shape 9b of the U-shaped groove provided at the other end of another tape body 1 are alternately fitted to each other. It is configured to be added in the longitudinal direction. Needless to say, the male shape 9a and the female shape 9b are alternately provided at one end and the other end of one tape body 1. Further, each spherical protrusion 2 arranged on the side edge portion of the tape body 1 is formed with a positioning recess 5 for positioning the side edge of the tape body 1.

For example, a U-shaped concave portion 8 as a connecting portion is provided at both side edges of another tape 4 made of a TAB tape, which is located at a distance of 15 in the longitudinal direction of the positioning sprocket holes 4a.
The spacer tape is formed with double intervals and the recesses 8 are formed.
Is provided with a protrusion 7 as a phase connecting portion, and spherical protrusions 2 are arranged in the tape body 1 at intervals of 5 times the longitudinal spacing of the positioning sprocket holes 4a. Are integrally formed on every third spherical protrusion 2 in the longitudinal direction of the tape body.

The other construction, operation and effect of this embodiment are the same as those of the above-mentioned one embodiment, and therefore detailed description thereof will be omitted.

In another embodiment of the present invention shown in the perspective view of FIG. 7, in this case, spherical projections 2 projecting on both the front and back surfaces of the tape body 1 and outside the side edges are formed on both sides of the tape body 1. The edge portions are provided at intervals of 5 times the pitch of the positioning sprocket holes 4a formed in the side edge portion of the TAB tape 4 in the longitudinal direction of the tape body.

Further, the tape main body 1 is formed in a ladder shape in which spars are provided in the tape main body longitudinal direction at intervals of twice the intervals of the protrusions 2 in the tape longitudinal direction. The protrusion 2 is arranged at the position.

Since the other constructions, functions and effects of this embodiment are the same as those of the above-mentioned one embodiment, these explanations are omitted to avoid redundant explanation.

[0054]

As described above, according to the present invention, the protrusions are formed so that the distance between the outer end faces of the protrusions on both sides is equal to the predetermined tape width, and the outer end faces of the respective protrusions are Since the tape body is formed in a convex shape outward, and the width of the tape body between the projections is smaller than the predetermined tape width, the side edge of the tape body that is angled when wound on the reel is set to the flange of the reel. The protrusion having the slippery outer end surface comes into contact with the flange of the reel without making contact with the reel. Therefore, it is possible to prevent the spacer tape from being scraped when the reel is wound up, and to prevent scraps from being produced. As a result, it is possible to obtain an effect that the contamination problem due to the scraps generated from the tape edge portion at the time of winding can be solved. You can do it.

Further, according to the present invention, the T superimposed on this
The AB tape and the protrusion having a circular or partially circular cross-section can be brought into point contact with each other, whereby an effect of preventing abrasion debris of the spacer tape or the TAB tape during winding can be obtained, and these debris The effect of eliminating the contamination problem caused by the adhesion to the TAB tape can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view of an essential part of an embodiment of the present invention.

FIG. 3 is a perspective view showing another embodiment of the present invention.

FIG. 4 is a perspective view showing another embodiment of the present invention.

FIG. 5 is a side view showing still another embodiment of the present invention.

FIG. 6 is an exploded perspective view showing still another embodiment of the present invention.

FIG. 7 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

1 tape body 2 protrusions 4 TAB tape 5 recess W Specified tape width ω Tape width

Claims (4)

(57) [Claims] 1. A spacer tape for a TAB tape having a plurality of protrusions protruding in the thickness direction of the tape body at predetermined intervals in the longitudinal direction of each side edge of the tape body, wherein the outer end surfaces of the protrusions on both sides are The protrusions are formed so that the distance is equal to a predetermined tape width, and the outer end surface of each protrusion is formed in an outwardly convex shape,
A spacer tape for a TAB tape, wherein the width of the tape body between the protrusions is formed smaller than the predetermined tape width. 2. The spacer tape for a TAB tape according to claim 1, wherein the protrusion is formed in a spherical shape protruding in both front and back directions centering on the tape body. 3. The spacer tape for a TAB tape according to claim 1, wherein the protrusion on the side edge of the tape body projects outward in the width direction by half of the protrusion. 4. The protrusion is formed on the tape body in the longitudinal direction of the TAB.
The TAB tape spacer tape according to any one of claims 1 to 3, which is formed at intervals equal to or a multiple of the pitch of the positioning sprocket holes of the tape.