JPH07326650A - Surface protecting sheet of transparent lid and its peeling equipment - Google Patents

Abstract

PURPOSE:To prevent foreign matter or the like adhering to a conveyer belt from transferring to the surface of a transparent lid via an adhesive layer of a protecting sheet, by arranging a base member composed of a plurality of protrusions having a specific size, on a pair of sides of a base member main part, and forming an adhering layer on the single surface of the base member. CONSTITUTION:Protrusions 2b are formed on a pair of sides of a rectangular base member main body 2a of a surface protecting sheet 1 of a transparent lid. The single surfaces of the base member 2a and the protrusions 2b are coated with adhesive layers 3 composed of acrylic adhesive agent or the like. A separator 4 is laid on the base member main body 2a and the protrusions 2b. The separator 4 is put inside and wound around a roll type core. Thereby foreign matter or the like adhering to a conveyer belt from transferring to the surface of a transparent lid via the adhesive layer 3 of the protecting sheet 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective sheet attached for the purpose of preventing foreign matter from adhering to the surface of a translucent lid made of glass or transparent plastic attached to the upper surface of a solid-state image pickup device, scratches and the like. The present invention relates to the peeling device.

[0002]

2. Description of the Related Art FIG. 2 is a structural cross-sectional view of a translucent lid surface protective sheet stripping device for stripping a translucent lid surface protective sheet from a base material, and FIG. ,
It is called "separator". ) Is a perspective view of the translucent lid surface protection sheet in a state of being mounted on the same, (b) is a sectional view of a portion A of the same protective sheet, and (c) is a sectional view of a portion B of the same protective sheet. 7A is a perspective view of a translucent lid surface protection sheet mounted in a conventional transport unit, FIG. 7B is a plan view of the same, and FIG. 8A is mounted in a conventional solid-state imaging device. FIG. 3B is a perspective view of the translucent lid surface protection sheet, and FIG.

Further, in FIGS. 2 and 6 to 8, 2
1 is a translucent lid surface protective sheet, 22 is a base material, 23 is an adhesive layer, 24 is a separator, 5 is a core, 6 is an upper shaft, 7 is a peeling plate, 8 is a first winding pinion, and 9 is a second. Winding pinion, 10 lower shaft, 11 first
Conveyance belt, 12 is a second conveyance belt, 13 is a first sliding roller, 14 is a second sliding roller, 25 is a solid-state imaging device, 2
6 is a translucent lid, 27 is an adhesive layer that contacts the conveyor belt, and 28 is a solid-state image sensor.

A conventional translucent lid surface protection sheet 21 is attached for the purpose of preventing foreign matter from adhering to the translucent lid surface made of glass or transparent plastic attached to the upper surface of a solid-state image pickup device and scratches. Is an adhesive layer 23 made of an acrylic adhesive or the like formed on one surface of a base material 22 made of polyester or the like, and glass or transparent plastic attached to the upper surface of the solid-state imaging device 25 to be attached. It is a rectangular sheet cut into a predetermined width by a die or the like according to the size of the translucent lid 26. In addition, this translucent lid surface protection sheet 21
Is attached to the separator 24 via the adhesive layer 23, and is wound around the core 5 in a roll shape so that the separator 24 is located inside.

In FIG. 2, the translucent lid surface protective sheet attached to the upper shaft 6 of the translucent lid surface protective sheet stripping device which is usually used when the translucent lid surface protective sheet 21 is stripped from the separator 24. The tip of the separator 23 with 21 passes from the tip of the peeling plate 7 between the first winding pinion 8 and the second winding pinion 9, and is attached to the lower shaft 10.

Then, the first winding pinion 8 is rotated counterclockwise and the second winding pinion 9 is rotated clockwise at a predetermined rotation speed, whereby the translucent lid surface protection sheet 2 is rotated.
When the separator 24 with 1 is pulled out from the core 5 and the separator 24 with the translucent lid surface protection sheet 21 passes through the tip of the peeling plate 7, the translucent lid surface protection sheet 21 is peeled from the separator 24. It

Then, the translucent lid surface protection sheet 21 is mounted on the two conveyor belts 11 and 12 made of silicon rubber or the like with the adhesive layer 22 facing down so as to bridge between them, and the separator 24 is wound around the lower shaft 10. After that, the first sliding roller 13 attached so that the first conveyor belt 11 and the second conveyor belt 12 are parallel to each other is rotated counterclockwise in synchronization with the first winding pinion 8 and the second winding pinion 9. Because it rotates in the direction
The translucent lid surface protection sheet 21 includes the conveyor belts 11 and 1.
2 are aligned and sent from the first sliding roller 13 side to the second sliding roller 14 side.

Then, the operator grasps the end portion of the translucent lid surface protection sheet 21 using tweezers or the like, removes it from the conveyor belts 11 and 12, and makes the adhesive layer 22 face down, so that the solid-state image pickup device 25 It is attached to the surface of the translucent lid 26 attached to the upper surface of the.

[0009]

However, in sticking the translucent lid surface protective tape 21 using the translucent lid surface protective sheet peeling device described above, the adhesive layer 22 in contact with the translucent lid is conveyed. Since the belts 11 and 12 come into direct contact with each other, foreign matters on the conveyor belts 11 and 12 adhere to the adhesive layer 22, and the transparent lid 26 is attached to the upper surface of the solid-state imaging device 25. Since the protective sheet 21 is attached, as a result, the foreign matter and the like are often transferred to the surface of the translucent lid 26 as streaky spots.

Originally, the purpose of attaching the translucent lid surface protection sheet 21 to the surface of the translucent lid 26 attached to the upper surface of the solid-state image pickup device 25 is to prevent foreign matters from adhering to the translucent lid 26. However, as described above, the conveyor belt 1
On the contrary, the transfer of the foreign matter or the like from 1 and 12 contaminates the surface of the translucent lid 26.

In particular, in recent years, like other integrated circuit devices,
Since the size of the solid-state imaging device 25 has been remarkably downsized, and the translucent lid 26 having a size of 10 mm ² or less has been used, the conveyor belts 11 and 12 can hold the vicinity of the center of the protective sheet 21. Inevitably, and when the solid-state imaging device 25 is incorporated in an optical system such as a video camera, there is a possibility that the above-mentioned transferred foreign matter exists on the optical path of the optical system.

Further, by making the area of the translucent lid surface protection sheet 21 sufficiently larger than the area of the translucent lid 26, the peripheral portion not directly in contact with the surface of the translucent lid 26 also becomes large. , This peripheral part and the conveyor belt 11,
It is also possible to bring 12 into contact with each other to hold the translucent lid surface protection sheet 21, but then, when the solid-state imaging device 25 is taken out from the packaging tray or the like, the peripheral portion of the translucent lid surface protection sheet 21 is caught. , The workability is remarkably deteriorated, and the translucent lid surface protection sheet 2 may be provided.
There is an adverse effect that 1 may be inadvertently peeled off.

Further, even if the area of the translucent lid surface protection sheet 21 is set to be approximately the same as the area of the upper surface of the package, due to the deviation in attaching the translucent lid surface protection sheet 21 and the dimensional tolerance of each material. It is difficult to accurately fit the outer peripheral portion of the translucent lid surface protection sheet 21 inside the outer peripheral portion of the solid-state imaging device 25, and the same problems as described above cannot be avoided.

An object of the present invention is to attach a sheet for protecting the surface of a translucent lid mounted on the upper surface of a solid-state image pickup device to a transport belt of a translucent lid surface protection sheet peeling device. Prevents foreign matters from transferring to the surface of the translucent lid through the adhesive layer of the protective sheet, and
It is an object of the present invention to provide a translucent lid surface protective sheet and a translucent lid surface protective sheet peeling device that do not hinder the work when the solid-state imaging device is taken out from a packaging tray or the like.

[0015]

A translucent lid surface protective sheet according to the present invention according to claim 1 is a rectangular base material main body portion covering the entire surface of the translucent lid and a pair of base material main body portions. It is characterized in that it comprises a base material comprising one or a plurality of convex portions of a predetermined size provided on one side, and an adhesive layer formed on one surface of the base material.

According to a second aspect of the present invention, there is provided a peeling device for a translucent lid surface protective sheet, wherein the translucent lid surface protective sheet is mounted on the translucent lid in the longitudinal direction. The translucent lid surface protective sheet stripping device for stripping a surface protective sheet onto two transport belts provided in parallel, wherein the translucent lid surface protective sheet according to claim 1 is provided on the two transport belts. The peeling device for a translucent lid surface protection sheet according to claim 1, wherein the interval between the two conveyor belts is set so that the convex portion of (1) is mounted.

[0017]

According to the above construction, the two transparent belts and the pressure-sensitive adhesive layer directly below the two or more convex portions formed on the translucent lid surface protection sheet, that is, the translucent surface attached to the upper surface of the solid-state image pickup device. By contacting the adhesive layer of the portion that does not contact the surface of the lid, the translucent lid surface protective sheet can be held on the conveyor belt, and the translucent lid mounted on the upper surface of the solid-state imaging device can be held. The portion of the adhesive layer that directly contacts the surface does not contact the conveyor belt.

[0018]

The present invention will be described in detail below based on an example.

FIG. 1 (a) is a plan view of a translucent lid surface protective sheet mounted on a separator according to an embodiment of the present invention, and FIG. 1 (b) is an AA 'portion of the protective sheet. FIG. 3 (a) is a cross-sectional view, and FIG. 3 (c) is a cross-sectional view of a portion BB ′ of the protective sheet, and FIG. Perspective view, same (b)
4A is a plan view, FIG. 4A is a perspective view of a translucent lid surface protection sheet mounted on a solid-state imaging device according to an embodiment of the present invention, and FIG. 4B is a plan view thereof. 5 is a plan view of a translucent lid surface protection sheet mounted on a conveyor belt according to another embodiment of the present invention.

1 to 5, 1 is a protective sheet, 2a is a base material body, 2b is a convex portion, 3 is an adhesive layer, 4 is a separator, 5 is a core, 6 is an upper shaft, and 7 is a peeling plate. , 8 is a first winding pinion, 9 is a second winding pinion, 10 is a lower shaft, 11 is a first conveyor belt, 1
2 is a second conveyor belt, 13 is a first sliding roller, 14 is a second sliding roller, 15 is a solid-state imaging device, 16 is a translucent lid, 17 is an adhesive layer that is in direct contact with the conveyor belt, and 18 is solid-state imaging. The element is shown.

Translucent lid surface protective sheet 1 of the present invention
Is characterized in that, as shown in FIG. 1, convex portions 2b are provided on each of a pair of sides of the rectangular base material main body 2a of the translucent lid surface protection sheet 1. Then, an adhesive layer 3 made of an acrylic adhesive or the like is applied to one side of the base material main body 2a made of polyester or the like and the convex portions 2b, and the base material main body 2a and the convex portion 2b are provided on the translucent lid surface protection sheet. Separator 4
It is similar to the conventional translucent lid surface protection sheet 21 shown in FIG. 6 in that the core is attached so that the separator 4 is on the inside. The difference is that in the mold etc., the translucent lid surface protection sheet 1
In the present invention, when the notch is made in the tape made of polyester or the like, the shape of the present invention is processed.

Further, the translucent lid surface protective sheet peeling apparatus of the present invention is provided with two parallel conveying belts which are mounted after the protective sheet 1 is peeled from the separator 4 as shown in FIG. Only the convex portions 2b of the translucent lid surface protection sheet 1 have the intervals 11 and 12 when the conveyor belts 11 and 1 are provided.
It is characterized in that it is set so as to be listed in 2. Further, the method for peeling the translucent lid surface protective sheet 1 from the separator 4 by the translucent lid surface protective sheet peeling device of the present invention is the same as the conventional technique, and the translucent lid surface protective stripped from the separator 4 is protected. Sheet 1 is conveyor belt 1
The protrusions 2b are brought into contact with each other only on the protrusions 1 and 12 and are held in a form of bridging them.

That is, in the case of the conventional translucent lid surface protection sheet 1, the solid transmissive lid surface protection sheet 1 is in direct contact with the surface of the translucent lid 16 mounted on the upper surface of the solid state image pickup device 15, and the solid state image pickup device 1 is obtained.
Since the adhesive layer 3 at a location that optically affects 8 contacts the conveyor belts 11 and 12, foreign matters on the conveyor belts 11 and 12 are transferred to the surface of the translucent lid 16 via the adhesive layer 3. However, in the case of the translucent lid surface protective sheet 1 of the present invention, two convex portions 2b are provided on the outer peripheral portion which does not directly contact the surface of the translucent lid 16 mounted on the solid-state imaging device 15. In the case of holding the translucent lid surface protection sheet 1 in such a manner as to bridge the two on the conveyor belts 11 and 12, the adhesive layer 3 that contacts the conveyor belts 11 and 12
Is only a specific portion of the two convex portions 2b on the outer peripheral portion of the translucent lid surface protection sheet 1, and the foreign matter on the conveyor belts 11 and 12 is the adhesive layer 2b of the translucent lid surface protection sheet 1.
Even when it adheres to a specific portion of the solid-state imaging device 18, the specific portion is not transferred to the surface of the translucent lid 16 and thus does not affect the solid-state imaging device 18 optically.

The convex portion 2b of the translucent lid surface protection sheet 1 is provided at a position where it does not hinder the work when taken out from the packaging case, as will be described later.
In order to prevent the ends of the projecting portions 2b from protruding as much as possible from the outer peripheral portion of the package, they are arranged so as to face each other on the side of the solid-state imaging device 15 where there is no lead,
In consideration of stability, the width is preferably about ⅓ to ⅕ of the length of the side where the convex portion 2b exists, but it is a trade-off with the overall size and hardness of the translucent lid surface protection sheet 1. However, it is not limited to this size range.

The protruding length of the convex portion 2b is preferably about 1.5 to 2 times the width of the conveyor belt 11 (12), and the width of the conveyor belt 11 (12) which is normally used is 1.
If the width of the conveyor belt 11 (12) is 1.5 mm, the protrusion length may be about 2 to 3 mm.

Further, according to the translucent lid surface protection sheet 1 of the present invention, the area of the portion which directly contacts the surface of the translucent lid 16 and protects the surface of the translucent lid 16 is the translucent lid surface. The minimum size considering the processing tolerance of the protective sheet 1 and the translucent lid 16 and the sticking accuracy of the translucent lid surface protective sheet 1, that is, the translucent lid surface protective sheet 1 is the translucent lid even in the worst case. By covering the entire surface of 16 and setting the ends of the two convex portions 2b so as not to protrude from the outer periphery of the package as much as possible, the transparent lid surface when the solid-state imaging device 15 is taken out from the packing tray. The peripheral part of the protective sheet 1 is caught,
The workability is not significantly deteriorated, and the translucent lid surface protection sheet 1 is not inadvertently peeled off.

In order to stably hold the translucent lid surface protective sheet 1 when it is conveyed by the conveyor belts 11 and 12, the convex portions 2b provided on the translucent lid surface protective sheet 1 are provided. If the peripheral portion of the translucent lid surface protection sheet 1 is caught when the solid-state imaging device 15 is taken out from the packing tray or the like and workability is not significantly deteriorated, two or more locations are arbitrarily set, for example, three locations as shown in FIG. May be provided.
However, if the convex portions 2b are provided at many places, the probability of catching and peeling off at the peripheral portion increases, so this is preferable if it can be conveyed at two places.

[0028]

As described above in detail, by using the present invention, even when the solid-state image pickup device is taken out from the packing tray or the like, the peripheral portion of the translucent lid surface protection tape becomes an obstacle in the work. In addition, the two conveyor belts and the adhesive layer directly below the two or more convex portions formed on the translucent lid surface protection sheet, that is, the surface of the translucent lid attached to the upper surface of the solid-state imaging device By contacting the adhesive layer of the part that does not contact, the translucent lid surface protection sheet can be held on the conveyor belt and directly contacts the translucent lid surface mounted on the upper surface of the solid-state imaging device. Since the adhesive layer portion does not come into contact with the conveyor belt, it is possible to prevent foreign matters adhering to the conveyor belt from being transferred to the transparent lid surface through the adhesive layer of the transparent lid surface protection sheet. Can And adhesion of foreign matters to the surface of the translucent lid can almost perfectly achieve prevention of such scratch.

[Brief description of drawings]

FIG. 1A is a plan view of a translucent lid surface protection sheet mounted on a base material according to an embodiment of the present invention,
(B) is a cross-sectional view of the AA ′ portion of the protective sheet, (c)
FIG. 4 is a cross-sectional view of a portion BB ′ of the protective sheet.

FIG. 2 is a structural cross-sectional view of a translucent lid surface protection sheet peeling device.

3A is a perspective view of a translucent lid surface protection sheet mounted on a conveyor belt according to an embodiment of the present invention, and FIG. 3B is a plan view of the same.

FIG. 4A is a perspective view of a translucent lid surface protection sheet mounted on a solid-state imaging device according to an embodiment of the present invention, and FIG.
Is a plan view of the same.

FIG. 5 is a plan view of a translucent lid surface protection sheet mounted on a conveyor belt according to another embodiment of the present invention.

6A is a perspective view of a translucent lid surface protective sheet mounted on a conventional separator, FIG. 6B is a sectional view of a portion A of the protective sheet, and FIG. 6C is the protective sheet. It is a sectional view of the B portion.

FIG. 7A is a perspective view of a translucent lid surface protection sheet mounted on a conventional conveyor belt, and FIG. 7B is a plan view of the same.

FIG. 8A is a perspective view of a translucent lid surface protection sheet mounted on a conventional solid-state imaging device, and FIG. 8B is a plan view of the same.

[Explanation of symbols]

 1 translucent lid surface protection sheet 2a base material main body 2b convex portion 3 adhesive layer 4 separator 5 core 6 upper shaft 7 peeling plate 8 first winding pinion 9 second winding pinion 10 lower shaft 11 first conveying belt 12 second 2 Conveyor Belt 13 First Sliding Roller 14 Second Sliding Roller 15 Solid State Imaging Device 16 Translucent Lid 17 Adhesive Layer in Direct Contact with Conveying Section 18 Solid State Imaging Device

Claims (2)

[Claims] 1. A base consisting of a rectangular base material main body portion covering the entire surface of the translucent lid, and one or a plurality of convex portions of a predetermined size provided on each of a pair of sides of the base material main body portion. A translucent lid surface protective sheet comprising a material and an adhesive layer formed on one surface of the base material. 2. A light-transmitting material for peeling the light-transmitting lid surface protecting sheet from a base material having a plurality of light-transmitting lid surface protecting sheets mounted in the longitudinal direction on two conveyor belts provided in parallel. In the peeling device for a transparent lid surface protection sheet, the two transport belts are spaced so that the convex portions of the translucent lid surface protection sheet according to claim 1 are mounted on the two transport belts. Characterized by being set,
The peeling device for the translucent lid surface protective sheet according to claim 1.