JP2022037255A - Wire sealed body - Google Patents

Abstract

To provide a wire sealed body that is sealed with a spool case making it possible to prevent a wire from deteriorating in surface properties or getting contaminated with outside air components in an inexpensive manner.SOLUTION: A wire sealed body 1 comprises: a wire winding body 2 comprising a wire 5 wound around a take-up spool 4; a case body 6 which houses the wire winding body 2; and a spool case which comprises a lid body 7 hermetically closing an opening of the case body 6 so as to seal the wire winding body 2. The case body 6 is made of a synthetic resin body. The lid body 7 is made of a synthetic resin film or a composite film including a synthetic resin film, which is adherable to and peelable from the case body 6.SELECTED DRAWING: Figure 1

Description

Embodiments of the present invention relate to wire encapsulation bodies.

The electrodes of the semiconductor chip and the external electrodes such as the lead frame and the circuit board are connected by, for example, wire bonding. In wire bonding, for example, one end of a bonding wire is bonded to an electrode of a semiconductor chip by a method called ball bonding, and the other end of the bonding wire is generally bonded to an external electrode by a method called wedge bonding. In ball bonding, one end of the bonding wire is melted by electric discharge or the like and solidified into a spherical shape by surface tension or the like to form a ball. The solidified ball is called a free air ball (FAB), and is connected to the electrode of the semiconductor chip by a thermocompression bonding method using ultrasonic waves or the like. As the bonding wire, a metal wire such as a gold wire, a silver wire, a copper wire, an aluminum wire, or a coated wire coated with another metal is used. These metal wires are not limited to bonding wires, but are also used when forming bumps or the like on the electrodes of semiconductor chips.

In the metal wire such as the above-mentioned bonding wire, deterioration and pollution of the surface surface become a problem due to oxygen and moisture in the outside air of the wire during storage and transportation, as well as pollutants derived from exhaust gas and air pollution. The metal wire is generally wound around a take-up spool to form a winding body, and the winding body is stored in a case for storage and transportation. However, although the conventional spool case has a shape in which the metal wire winding body is housed in the case body and then the opening of the case body is covered with a resin lid body, the lid body is relative to the case body. Wires such as metal wires are used because they are simply fitted and the lid and the case body are not in a tightly closed state, which allows oxygen, moisture, and other impurities to permeate. It will deteriorate. There are many problems that occur due to deterioration of the surface texture of the metal wire due to the outside air component. The problem is that the bonding device is stopped due to a decrease in bondability. Further, the shape of the FAB may become unstable, or the ball may be hardened by forming the FAB from the oxidized metal wire, which may damage the semiconductor chip or the like at the time of joining. Therefore, in order to satisfy many characteristics of the metal wire and perform production control that requires strict reduction of the defect rate, it is necessary to avoid deterioration of the surface texture of the metal wire. Further, in a case composed of a lid body and a tray portion, which is widely used at present, for example, when the fitting is loose, the lid body comes off due to an impact when dropped, and the spool is thrown out from the case. There is also a risk that it will end up. This causes deterioration of the quality of the metal wire wound around the spool.

In order to avoid the above-mentioned problems, for example, as shown in Japanese Patent Application Laid-Open No. 1-294474, a case containing a wound metal wire is sealed in a film-shaped bag in a package. A method of enclosing an oxygen adsorbent or a moisture-absorbing material, further creating a vacuum inside the bag, or injecting an inert gas, as shown in Japanese Patent Publication No. 5-7271., A case containing a metal wire is housed. A method of keeping the pressure below a certain pressure by enclosing hydrogen gas or an inert gas after vacuuming the inside of the synthetic resin film bag, and as shown in Japanese Patent Application Laid-Open No. 2003-26249, a metal wire. Alternatively, a method of packing a spool wound with an intermediate processed material by a vacuum pack, an air pack, or an air pack after vacuuming using a plastic bag is adopted. However, the packing method using these outer bags has a big problem. That is, in order to enclose and ship a spool wound with a large amount of metal wire by the method as described above, the cost of the outer bag, the deoxidizing agent, etc. is significantly increased, and degassing and injecting gas are added. There is a big problem in terms of productivity because the time for the sealing work itself is increased. Further, by enclosing the product in an outer bag, extra space is taken when storing the product in the packaging box, which causes shipping problems such as a limitation on the number of spools. In the bonding wire industry, which is exposed to fierce cost competition, in order to avoid these problems, it is an urgent task to establish a packaging method instead of encapsulation with an outer bag.

Further, as another means for preventing surface deterioration of the metal wire, for example, as shown in Japanese Patent Application Laid-Open No. 2007-250750, a vaporizable rust inhibitor is put in a spool case or an outer bag for storing the spool case to prevent oxidation. As shown in Japanese Patent Application Laid-Open No. 2013-48164, a method of storing activated carbon or an oxygen absorber in a spool case so as not to come into contact with a metal wire has been studied. However, if the vaporizable rust inhibitor is considerably small and is only enclosed without being fixed in the spool case or the protective bag, the vaporizable rust inhibitor is contained in the spool case or the outer bag. It may move and come into contact with the metal wire wound around the spool, causing bending and deformation habits. In the unlikely event that a vaporizable rust inhibitor, activated carbon, or oxygen absorber flows out for some reason and such powder is scattered in the spool case, it may cause serious surface contamination of the metal wire.

Therefore, especially for bonding wires for semiconductor devices, metal wire storage containers and storage methods that prevent deterioration and contamination of surface properties during storage and transportation while maintaining productivity without using an outer bag or the like. Is required.

In addition to the above-mentioned problems due to oxidation and the like, for example, when a metal wire is wound in a spool and transported in a case, there is a problem that the metal wire is unwound or biased. That is, vibration or shaking during long-distance transportation is transmitted to the spool in the case, which may cause loosening or bias in the metal wire wound on the spool. If the metal wire is loosened or biased, there will be a problem that the metal wire is entangled and cannot be unwound properly when the wire is unwound in the wire bonding process. Loose winding may cause disconnection when the metal wire is entangled or passed through, so the metal wire cannot be smoothly unwound by the bonding device, and the device may stop, resulting in a wire bonding process. It will significantly reduce productivity.

Various spools have been developed to solve problems such as unwinding due to vibration and impact, and not only the spool but also the spool case is used to take measures against vibration. For example, Japanese Patent No. 2679697 states that "a container body made of synthetic resin integrally provided with an upward bulging fitting ridge for fitting a tubular spool and a ridge on the outer peripheral wall of the container body are fitted. Disclosed is a spool case made of a lid, in which the planar shape of a portion of the container body that contacts and supports the spool of the fitting ridge is polygonal, and the corner portion thereof is rounded to form a spool case for a bonding wire. It is stated that "because the corner portion is supported on each side of the polygonal column, the repulsive force of the corner portion is increased, and the corner portion is firmly pressed against the spool to firmly and firmly hold the spool." In this spool case, since the spool flange is in direct surface contact with the inside of the container body, the impact during transportation and vibration in the manufacturing process are directly transmitted to the spool, and the metal wire may be unwound. Further, since the spool is stored in the spool case in the same direction as the metal wire is wound on the spool, the wire is more likely to be unwound. Further, since the lid is only fitted to the container body, it is not possible to reliably prevent the lid from coming off when a large impact is applied.

As a spool case that exhibits the same spool adhesion effect, Japanese Patent No. 3533658 states that "an upward bulging fitting ridge that fits with the inner peripheral surface of a tubular spool and an outer peripheral peripheral wall ridge that fits with a lid". In a spool case for a bonding wire composed of a container body integrally provided with a container body and a lid body fitted to the outer peripheral peripheral wall ridge of the container body, a cylindrical spool flange is provided around the fitting ridge of the container body. A spool case in which a groove to be fitted from the outer periphery is formed in a circumferential shape is disclosed, and this spool case firmly fixes the spool in order to support it at two points, the inner peripheral surface of the spool and the outer peripheral surface of the flange. Therefore, when the spool is taken out, it is forced to be pulled out with a strong force and accidentally touches the wire, or when the spool and the container body are not sufficiently fixed and the spool case lid is opened, the spool is accidentally spooled. It has the effect of preventing accidents such as dropping the container, and can withstand repeated use. " However, since the spool is fitted into the container body in the same direction as the metal wire is wound on the spool, the spool is susceptible to shocks and vibrations directly as in the above-mentioned problem, and the metal wire is unwound or disturbed in the vertical direction. There is a problem that it cannot be overcome. Further, since the lid is only fitted to the container body, it is not possible to reliably prevent the lid from coming off when a large impact is applied.

Japanese Unexamined Patent Publication No. 1-294474 Special Fair No. 5-7271 Japanese Unexamined Patent Publication No. 2003-26249 Japanese Unexamined Patent Publication No. 2007-250750 Japanese Unexamined Patent Publication No. 2013-48164 Japanese Patent No. 2679697 Japanese Patent No. 3533658

In the spool case that houses the take-up spool around which a wire such as a conventional metal wire is wound, the case body and the lid are not sealed, and oxygen, moisture, and other impurities in the outside air are allowed to permeate. Therefore, it is not possible to avoid deterioration and contamination of the surface properties of the wire typified by the metal wire due to the outside air component. Deterioration and contamination of the surface properties of the wire are factors that reduce the unravelability of the wire. Further, in the conventional storage method using an outer bag, a take-up spool in which a wire is wound is enclosed in the outer bag and then degassed and packed, and in some cases, a deoxidizing agent such as activated charcoal or an oxygen absorber is added together. Since it is necessary to enclose, the cost of the outer bag and the oxygen scavenger is high, and the encapsulation work itself takes time, so that an increase in production cost and a decrease in productivity are inevitable.

An object to be solved by the present invention is to provide a wire encapsulation body in which a wire is sealed by a spool case capable of suppressing deterioration and contamination of the surface texture of the wire due to an outside air component at low cost. ..

The wire encapsulation body of the present invention includes a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and the wire winding body. A spool case including a lid for sealing the opening of the case body is provided so as to seal the body. In the wire-sealed body of the present invention, the case body is made of a synthetic resin body, and the lid body is made of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing a synthetic resin film. It is characterized by that.

According to the wire sealing body of the present invention, since the wire winding body having the wire is hermetically sealed by the spool case, the outside air such as oxygen, moisture, and other impurities in the outside air inside the spool case. It is possible to prevent deterioration and contamination of the surface texture of the wire due to the intrusion of components. Therefore, the surface texture of the wire can be easily maintained at low cost.

It is a figure which shows the schematic structure of the metal wire encapsulation body of an embodiment in a partial cross section. It is a perspective view which shows the take-up spool in the metal wire encapsulation body shown in FIG. It is a perspective view which shows the case body of the spool case in the metal wire encapsulation body shown in FIG. It is a figure which shows the deformation example of the opening of the case body shown in FIG. It is a figure which shows the other modification of the opening of the case body shown in FIG. It is a figure which shows the modification of the vertical cross-sectional shape of the case body shown in FIG. It is a figure which shows the other modification of the vertical cross-sectional shape of the case body shown in FIG. It is a figure which shows the other modification of the vertical cross-sectional shape of the case body shown in FIG. It is a figure which shows the unwinding test of a metal wire winding body.

Hereinafter, the wire encapsulating body according to the embodiment of the present invention will be described with reference to the drawings. In each embodiment, substantially the same constituent parts may be designated by the same reference numerals, and the description thereof may be partially omitted. The drawings are schematic, and the relationship between the thickness and the plane dimensions, the ratio of the thickness of each part, the ratio between the vertical dimensions and the horizontal dimensions, etc. may differ from the actual ones.

FIG. 1 is a cross-sectional view showing a schematic configuration of a metal wire encapsulation body as an example of the wire encapsulation body of the embodiment. The metal wire encapsulating body 1 shown in FIG. 1 includes a metal wire winding body 2 and a spool case 3 for accommodating the metal wire winding body 2. The wire encapsulant of the embodiment is not limited to the metal wire encapsulant, and may be a wire other than the metal wire, for example, a resin wire, a fiber wire, or the like. The metal wire winding body 2 includes a take-up spool 4 and a metal wire 5 wound around the take-up spool 4. The spool case 3 includes a case body 6 in which the metal wire winding body 2 is housed, and a lid body 7 that seals the opening of the case body 6 and can be peeled off so as to seal the metal wire winding body 2. The metal wire 5 has a function of preventing deterioration of the surface texture, contamination, etc. due to the outside air component of the metal wire 5.

The metal wire winding body 2 has the metal wire 5 wound around the take-up spool 4 as described above. Examples of the metal wire 5 include a bonding wire and the like. Bonding wires include electrical connections between semiconductor chip electrodes and external electrodes such as lead frames and circuit boards, electrical connections between electrodes of multiple semiconductor chips, semiconductor chip electrodes, lead frames, circuit boards, etc. It is a metal wire used for forming a connection bump on an external electrode.

Specific examples of the metal wire 5 include gold or gold alloy wire, palladium or palladium alloy wire, platinum or platinum alloy wire, aluminum or aluminum alloy wire, silver or silver alloy wire, copper or copper alloy wire, and the like, and these wires. Examples thereof include coated wires coated with other metals, and are used as, for example, bonding wires. The coated wire is a core material made of the above-mentioned metal or alloy provided with a metal layer made of a metal different from the metal constituting the core material or an alloy layer containing such a metal as a coating layer. A typical example is copper or copper alloy wire coated with palladium or a palladium alloy. The shape of the metal wire 5 represented by the bonding wire is not particularly limited, but for example, a typical gold or gold alloy wire has a diameter of 18 μm or more and 30 μm or less, and the take-up spool 4 has a diameter. For example, it is wound with a length of about 1000 m or more and 5000 m or less.

As shown in FIG. 2, the take-up spool 4 has a cylindrical body portion 8 and a pair of flange portions 9 (9A, 9B) provided at both ends of the body portion 8. The take-up spool 4 has a hollow portion 10 that penetrates the inside of the body portion 8 and further penetrates the pair of flange portions 9A and 9B, respectively. It is possible to attach it to a wire bonding process or the like. As the take-up spool 4, for example, a spool called AL-4 or AL-2 having an inner diameter of 47 mm or more and 50 mm or less is known. The take-up spool 4 may be made of synthetic resin or metal. The metal take-up spool 4 is generally manufactured using aluminum whose surface is anodized. Examples of the material for forming the take-up spool 4 made of synthetic resin include acrylonitrile-butadiene-styrene copolymer (ABS resin), polycarbonate, impact-resistant polystyrene and the like. From the viewpoint of versatility, the take-up spool 4 used for the wire sealing body 1 of the embodiment is preferably a spool having an inner diameter of 47 mm or more and 52 mm or less including the above-mentioned AL-4 and AL-2.

As shown in FIG. 1, the spool case 3 includes a case body 6 for accommodating the metal wire winding body 2 and a lid body 7 for sealing the opening of the case body 6. The spool case 3 is preferably made of a transparent body or a translucent body. As a result, the internal structure such as the bottom where the metal wire winding body 2 is arranged can be visually observed from the outside of the spool case 3, so that the wire surface is defective due to unwinding, winding disorder, foreign matter adhesion, etc. of the metal wire 5. Will be easier to find. The degree of transparency may be such that the unwinding of the metal wire 5 can be visually recognized.

The case body 6 is made of a synthetic resin such as polyvinylidene chloride (PVDC), polyvinylidene chloride (PVC), polyethylene terephthalate (PET), polypropylene (PP), polyethylene (PE), and an ethylene-vinyl alcohol copolymer (EVOH). , Nylon (NY), Metaxylylene adipamide, Biaxially stretched nylon, Non-stretched nylon, Biaxially stretched polypropylene, High-density polyethylene, Polyvinylidene chloride coat Biaxially stretched nylon, Polyvinylidene chloride coat Non-stretched nylon, Polyacrylic It is composed of a single-layer or multi-layer synthetic resin body selected from nitrile, polyamide, polyethylene, unstretched polypropylene, polycarbonate, polystyrene, and impact-resistant polystyrene. The case body 6 is manufactured by vacuum forming or injection molding a synthetic resin material. The thickness of the case body 6 may be 0.3 mm or more and 1.5 mm or less, preferably 0.5 mm or more and 1.3 mm or less, and further 0. More preferably, it is 7 mm or more and 1.1 mm or less. The thickness of the case body 6 referred to here is the thickness of the side surface of the main body or the thermocompression bonding portion with the lid, which is a part that maintains the overall strength of the metal wire winding body 2 of the spool case 3 as a storage container. The portion that does not affect the strength and the portion that has other specific functions may be out of the above-mentioned thickness range. Further, in order to impart further rigidity, a part of the case body 6 may be out of the thickness range described above. The above-mentioned thickness can be appropriately measured with, for example, a ruler or a caliper. If it is difficult to measure the curved portion, the thickness of the flat portion can be the thickness of the case body 6.

As shown in FIG. 3, the case body 6 has a container-shaped winding body accommodating portion 11 having a hollow inside, an opening 12 provided at one end of the winding body accommodating portion 11, and around the opening 12. It is provided and has an upper peripheral edge 13 which is a close contact portion of the lid body 7. The metal wire winding body 2 is housed in the winding body accommodating portion 11 of the case body 6. The opening 12 of the case body 6 in which the metal wire winding body 2 is housed is sealed with a lid 7 so as to seal the metal wire 5. The lid 7 is in close contact with the upper peripheral edge 13 provided around the opening 12 in an airtight state, whereby the metal wire 5 is hermetically sealed by the spool case 3. By bringing the lid 7 into close contact with the case body 6, the metal wire winding body 2 does not fall off or be thrown out from the spool case 3 even when an impact or the like is applied.

Further, the lid 7 is made of a synthetic resin film that is in close contact with the case body 6 and can be peeled off, or a composite film containing the synthetic resin film. Therefore, in the bonding process in semiconductor device manufacturing or the like, the take-up spool 4 in which the lid 7 is peeled off and the metal wire 5 is wound can be easily taken out without using a cutter or scissors, thereby increasing productivity. Leads to improvement. Adhesion to the upper peripheral edge 13 of the lid 7 is performed, for example, by thermocompression bonding (welding) between synthetic resins. Although it depends on the material for forming the lid 7, for example, when an easy-peel multi-layer resin film described later is used for the lid 7, the thermocompression bonding temperature is 120 ° C. or higher and 170 ° C. or lower from the viewpoint of peelability after thermocompression bonding. The degree is preferable. A contact method other than thermocompression bonding may be applied as long as it is a method that can maintain a peelable state while being in close contact with each other in an airtight state. Examples of such an adhesion method include ultrasonic welding, high frequency welding, and adhesion with a hot melt material.

The peelability of the lid 7 made of a synthetic resin film or a composite film can be controlled by the peel strength (g). The peel strength can be easily measured by fixing the case body 6 and fixing the spring-type hook to the lid 7. From the viewpoint of achieving both ease of peeling of the lid 7 and adhesion to the case body 6, it is preferable that the peel strength of the lid 7 is within a certain range. That is, specifically, the peel strength of the lid 7 is preferably in the range of 280 g or more and 2000 g or less, and more preferably in the range of 400 g or more and 1500 g or less. If the peel strength is less than 280 g, the lid 7 made of a film is peeled off due to vibration or the like during transportation, and conversely, if it exceeds 2000 g, it becomes difficult to peel off and workability is significantly reduced. Further, the thickness of the lid 7 made of the synthetic resin film or the composite film may be 20 μm or more and 100 μm or less including the composite film, and 30 μm or more and 90 μm or less, from the viewpoint of gas barrier property and adhesion at the time of thermocompression bonding. It is preferable, and more preferably 45 μm or more and 75 μm or less.

As described above, the lid 7 is made of a synthetic resin film that is in close contact with the case body 6 and can be peeled off, or a composite film containing the synthetic resin film. The lid 7 is, for example, a polyvinylidene chloride (PVDC) film, a polyvinyl chloride (PVC) film, a polyethylene terephthalate (PET) film, a polypropylene (PP) film, a polyethylene (PE) film, an ethylene-vinyl alcohol copolymer ( EVOH) film, nylon (NY) film, metaxylylene adipamide film, biaxially stretched nylon film, non-stretched nylon film, biaxially stretched polypropylene film, high-density polyethylene film, polyvinylidene chloride-coated biaxially stretched nylon film, A synthetic resin film containing at least one selected from polyvinylidene chloride coated unstretched nylon film, polyacrylic nitrile film, polyamide film, polyethylene film, unstretched polypropylene film, polycarbonate film, polystyrene film, and impact resistant polystyrene film, or It consists of a composite film containing such a synthetic resin film. The composite film is at least selected from a film with a coat layer provided with an inorganic material coat layer such as a silica coat, an alumina coat, and an aluminum coat on at least one of the above-mentioned synthetic resin films, and a synthetic resin film and a film with a coat layer. A laminated film in which two films are laminated can be mentioned.

The lid 7 is preferably a synthetic resin film having a two-layer or three-layer structure or more, rather than a single-layer synthetic resin film, from the viewpoint of achieving both gas barrier properties and ease of peeling. Synthetic resin films have different functions of gas barrier property and thermocompression bonding / peeling property depending on the type, and it can be expected that these properties can be obtained at the same time by laminating films having different functions. Specifically, it is conceivable to use a commercially available polyethylene terephthalate (PET) -based or polyethylene (PE) -based easy peel film composed of a film having a two-layer or three-layer structure or more having a plurality of functions. Further, among synthetic resin materials, different materials (for example, polypropylene (PP) and polyethylene (PE), polystyrene (PS) and polyethylene (PE), etc.) may be difficult to thermocompression bond. Therefore, in order to improve the thermocompression bonding property between the case body 6 and the lid body 7, the same type of resin material or a composite resin material mixed with the same type of resin material should be used for the case body 6 and the lid body 7. Is preferable.

Further, the lid 7 is preferably made of a synthetic resin film resistant to rubbing from the viewpoint of avoiding troubles during transportation. Although the synthetic resin film has sufficient strength against tension, pinholes may occur due to rubbing between the packing box and the contents. With respect to such a point, the generation of pinholes can be suppressed by using the lid 7 containing the synthetic resin film resistant to rubbing. Specifically, it is conceivable to use a multilayer film made of polyethylene terephthalate (PET) / stretched nylon (ON) / linear low density polyethylene (LLPDE). Further, since there is a possibility of rupture during transportation, it is preferable to use a synthetic resin film having excellent impact resistance. Specifically, it is conceivable to use a synthetic resin film including a film made of stretched nylon (ON) and a film made of biaxially stretched polypropylene (OPP) for the lid 7.

It is preferable that the case body 6 made of a synthetic resin body and the lid 7 made of a synthetic resin film or a composite film do not allow oxygen and moisture to permeate. The fact that the case body 6 and the lid 7 do not allow oxygen and water to permeate can be measured using a commercially available oxygen permeability measuring device (for example, OX-TRAN2 / 22 manufactured by MOCON). When the oxygen permeability is 8000 cm ³ / ( ^m 2.24 h · atm) or less, deterioration and contamination of the surface texture of the metal wire 5 due to the intrusion of outside air components can be suppressed. Further, in order to prevent oxidation and sulphurization of the metal wire 5 due to the intrusion of outside air components, it is preferable that the oxygen permeability is 3000 cm ³ / ( ^m 2.24 h · atm) or less, whereby oxygen permeation is practically performed. Oxidation and corrosion of the metal wire 5 due to the above can be suppressed. In order to suppress oxidation and corrosion of the metal wire 5, the oxygen permeability of the case body 6 and the lid 7 is more preferably 1000 cm ³ / ( ^m 2.24 h · atm) or less, and more preferably 300 cm ³ / ( ^m 2.24 h). -Atm) or less is more preferable, and optimally 100 cm ³ / (m 2.24 h ^- atm) or less.

Further, the water vapor permeability of the case body 6 made of a synthetic resin body and the lid 7 made of a synthetic resin film or a composite film is considered to have a certain correlation with the oxygen permeability, and the oxygen permeability is a constant value. If it is less than or equal to, the water vapor permeability can be suppressed to a certain value or less. For example, in the case of polyethylene terephthalate (PET), when the oxygen permeability is 80 cm ³ / ( ^m 2.24 h · atm) in terms of the material thickness of 25 μm, the water vapor transmission rate is 22 g / ^m 2.24 h. Become.

By using the case body 6 and the lid 7 having the oxygen permeability and the water vapor transmission rate as described above, oxygen, water, other impurities and the like can be contained in the spool case 3 via the case body 6 and the lid 7. It is possible to suppress deterioration and contamination of the surface texture of the metal wire 5 due to the entry of outside air components. That is, the lid 7 is brought into close contact with the case body 6 to not only airtightly seal the inside of the spool case 3, but also suppress the entry of outside air components into the spool case 3 through the case body 6 and the lid 7. This makes it possible to more effectively suppress deterioration and contamination of the surface texture of the metal wire 5 due to the entry of the outside air component into the spool case 3. When an outside air component enters the spool case 3, deterioration or contamination of the surface of the metal wire 5 due to oxygen, moisture, other impurities, or the like occurs. Therefore, the unwindability of the metal wire 5 from the take-up spool 4 is lowered, and the performance and quality of the metal wire 5 are deteriorated. By preventing the outside air component from entering the spool case 3, it is possible to suppress deterioration and contamination of the surface texture of the metal wire 5, and deterioration of the unravelability, performance, quality and the like of the metal wire 5 due to them.

When the case body 6 containing the metal wire winding body 2 is hermetically sealed with the lid body 7, the surface texture of the metal wire 5 of the metal wire 5 is deteriorated or contaminated, and particularly, oxidation or corrosion due to oxygen, moisture, or the like is caused. In order to prevent it reliably, it is preferable to degas the inside of the case body 6 before sealing with the lid 7, and it is preferable to fill the inside of the case body 6 to be sealed with the lid 7 with the inert gas. The surface of the metal wire 5 may be deteriorated or contaminated due to the influence of oxygen, sulfur, etc. remaining in the spool case 3. Therefore, by degassing the case body 6 before sealing it with the lid 7, deterioration and contamination of the surface texture of the metal wire 5 can be suppressed. The degassing may be as long as it is at atmospheric pressure or less, and even more so if it is 20 kPa or less. Further, it does not prevent the deoxidizing agent or the like from being arranged in the spool case 3, but in that case, it is prevented from scattering or the like in the spool case 3. Then, when the inert gas is filled, the concentration of the inert gas inside the case (nitrogen, argon gas, etc.) is preferably at least higher than the concentration of the inert gas in the air atmosphere, and the concentration of the inert gas is 90% or more. It is preferably 98% or more, and more preferably 98% or more.

When storing a metal wire 5 containing an oxidizing metal such as copper or silver, in an environment such as a clean room where an appropriate temperature and humidity are maintained, oxidation or the like does not occur even when exposed to the atmosphere, but it is transported. In a harsh environment of high temperature and high humidity, there is a risk of oxidation. When applying the metal wire 5 which may cause oxidation or the like during such transportation, the inside of the case body 6 before being sealed by the lid 7 may be degassed and further filled with an inert gas. preferable. The inert gas may be any gas that can be expected to suppress a chemical reaction such as oxidation of the metal wire 5, and for example, nitrogen gas, argon gas, carbon dioxide gas and the like can be used.

As the method for filling the inert gas, a gas replacement packaging method using the inert gas can be applied in addition to the method for filling the inert gas after degassing the inside of the case body 6 described above. The gas replacement packaging method is a method of removing air in a packaging container and filling it with another gas. In the metal wire encapsulating body 1 of the embodiment, for example, the inert gas is injected into the case body 6 containing the metal wire winding body 2, and the air is removed while the air inside the case body 6 is removed by the inert gas. Replace with an active gas. The gas-replaced case body 6 is quickly sealed with the lid body 7.

As described above, in the metal wire encapsulation body 1 of the embodiment, the metal wire winding body 2 having the metal wire 5 wound around the take-up spool 4 is made of a synthetic resin body that does not allow oxygen and moisture to permeate. Since the spool case 3 is tightly sealed with the case body 6 and the spool case 3 made of a synthetic resin film or a composite film that does not allow oxygen and moisture to permeate, for example, copper or silver, which is an oxidizing metal, is used. Even if the metal wire 5 is the main component, it is possible to prevent oxidation and corrosion due to the intrusion of oxygen and moisture during transportation and storage. Therefore, the surface texture of the metal wire 5 can be maintained during transportation and storage. Further, since the spool case 3 composed of the case body 6 and the lid 7 prevents the metal wire 5 from being oxidized or corroded, it is sealed with a conventional outer bag or a deoxidizing agent enclosed therein. Compared to the stopping method, the cost of the outer bag, deoxidizer, etc., the number of steps required for the encapsulation work, etc. can be reduced, so that the deterioration of the surface texture of the metal wire 5 can be suppressed at low cost, and the packaging can be performed. Since the space for storing in the box is reduced, it is possible to avoid shipping problems such as an increase in shipping cost. Further, the conventional sealing method has problems such as removal of the packing bag, work space, and increase in the amount of waste on the user side of the metal wire sealing body, but the metal wire sealing body 1 of the embodiment has problems. According to this, the above-mentioned difficulty on the user side can be solved.

In the case body 6 of the spool case 3, as shown in FIG. 3, the winding body accommodating portion 11 is formed by bulging a substantially square pyramidal-shaped peripheral wall ridge with a hollow inside inside the upper peripheral edge 13. The bottom surface of the large area of the square pyramid is located on the upper side, and the bottom surface of the small area is located on the lower side. The winding body accommodating portion 11 having a substantially square weight base has a bottom portion 11a corresponding to the bottom surface (lower side) of a small area of the substantially square weight base. The shape of the winding body accommodating portion 11 may be a bottomed container shape capable of accommodating the metal wire winding body 2, and may be a substantially pyramidal trapezoidal shape other than the substantially square pyramid trapezoidal shape. Here, the substantially quadrangular pyramid shape means a pyramid base in which the opening 12 is substantially quadrangular, but even if the shape of the opening 12 is polygonal or has rounded corners. good. Further, it does not have to be a pyramid base in a strict sense, and may have a partially rounded shape, for example.

In the winding body accommodating portion 11 having a substantially quadrangular pyramid shape, the shape of the opening 12 provided at one end thereof does not have to be a quadrangle in a strict sense. It may be a curved shape such as a part of the above, or a polygonal shape in which corners are diagonally connected, for example, as shown in FIG. Further, the vertical cross-sectional shape (cross-sectional shape cut in the depth direction) of the winding body accommodating portion 11 does not have to be a square pyramid in a strict sense, and as shown in FIG. 6, the bottom side of the square pyramid. It may have a curved shape at the corners, or, as shown in FIGS. 7 and 8, for example, a shape in which the bottom side corners are diagonally connected and the inclination angle of the tip portion is two or two or more. The curved portion shown in FIG. 6 and the inclined portion shown in FIGS. 7 and 8 may be provided only on one of the bottom side corner portions of the square pyramid. Even with such a shape, if the metal wire winding body 2 can be stored and the bottom portion 11a for supporting the metal wire winding body 2 is provided, the spool case 3 and the case body 6 thereof are provided. The function as (winding body accommodating portion 11) can be obtained.

The metal wire winding body 2 is housed in the winding body accommodating portion 11 having a substantially square pyramid shape. In the metal wire winding body 2, the central axis of the cylindrical body portion 8 of the winding spool 4 (the axis passing through the centers of both the upper and lower surfaces of the cylinder) is parallel to the bottom portion 11a of the winding body accommodating portion 11. , It is housed in the winding body accommodating portion 11. As a result, the winding direction of the metal wire 5 with respect to the body portion 8 (the direction of the central axis of the body portion 8) becomes horizontal in the winding body accommodating portion 11, in other words, the direction of the metal wire 5 is the winding body accommodating portion. The metal wire winding body 2 can be housed so as to be parallel (vertical direction) to the depth direction of 11. Therefore, it is possible to prevent the metal wire 5 from being unwound during transportation or the like. That is, as described above, when the spool is stored in the spool case in the same direction as the winding of the metal wire on the spool, the metal wire is positioned in the horizontal direction, so that the metal wire is liable to be unwound. In the metal wire encapsulation body 1 using the spool case 3 of the embodiment, it is possible to suppress such unwinding of the metal wire 5.

As shown in FIG. 3, the winding body accommodating portion 11 is further provided on two opposite side surfaces 11b of the peripheral wall ridges having a substantially square pyramid shape, and is provided inside the winding body accommodating portion 11 (case body 6). It has an expansion portion 14 that projects toward it. The expansion portions 14 are provided on one side surface 11b in a single unit or in a plurality of pairs, and are formed so as to make point contact or line contact with the outer peripheral surface of the flanges 9 (9A, 9B) of the take-up spool 4. By supporting the expansion portion 14 by making point contact or line contact with the flange 9 of the take-up spool 4, a space is provided between the take-up spool 4 and the winding body accommodating portion 11 (case body 6). Here, it is preferable to provide gaps in the front-rear and left-right directions between the metal wire winding body 2 and the winding body accommodating portion 11 (case body 6). The width of the void is preferably 1 mm or less, more preferably 0.5 mm or less. By bringing the expansion portion 14 into contact with the flange 9 of the take-up spool 4 while providing such a gap, it is possible to disperse the impact from the outside and alleviate the direct impact on the metal wire winding body 2. , Can absorb minute vibrations. Therefore, it is possible to suppress the movement of the metal wire winding body 2 in the case body 6 during transportation and the like, the unwinding of the metal wire 5 due to an impact from the outside, and the like.

The expansion portion 14 is typically a plurality of wavy grooves, but may have any other shape as long as it is in point contact or line contact with the flange 9. From the viewpoint of making point contact or line contact with the flange 9, the expansion portion 14 is preferably a ridge or a protrusion. It is preferable that the two facing side surfaces 11b of the peripheral wall ridge having a substantially square pyramid shape each have two or more expansion portions 14. By supporting the flanges 9A and 9B of the take-up spool 4 with two or more expansion portions 14 provided on the two facing side surfaces 11b, respectively, the metal wire winding body 2 and the case body 6 during transportation or the like are supported. The supportability of the metal wire winding body 2 can be enhanced while suppressing the contact with the metal wire winding body 2. Therefore, unwinding of the metal wire 5 and the like can be more effectively suppressed, and loosening and bias of the metal wire 5 in long-distance transportation can be suppressed, so that the metal wire 5 is entangled during wire feeding and further. It is possible to prevent the metal wire 5 from being broken and the wire bonding device from being stopped.

As described above, according to the metal wire encapsulating body 1 of the embodiment, the spool case during transportation and storage can be easily performed at low cost while suppressing an increase in manufacturing cost, manufacturing man-hours, shipping cost and the like. It is possible to prevent the intrusion of oxygen and moisture into the metal wire 3 and prevent the metal wire 5 from being oxidized or corroded. Therefore, for example, even a metal wire 5 containing copper that is easily oxidized or silver that is easily sulfurized as a main component can be transported and stored while maintaining the surface texture of the metal wire 5. Further, based on the shape of the case body 6 of the spool case 3, for example, it is possible to suppress unwinding, loosening, bias, etc. of the metal wire 5 during long-distance transportation, and the metal wire at the time of wire feeding caused by these can be suppressed. It is possible to suppress the entanglement of the wire 5, the disconnection of the metal wire 5, the stoppage of the wire bonding device, and the like.

The method for manufacturing the wire encapsulating body of the embodiment is a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and a wire winding. It is a method of manufacturing a wire-sealed body including a spool case including a lid body for sealing the opening of the case body so as to seal the body, and the case body is made of a synthetic resin body and has a lid body. Is composed of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing the synthetic resin film.

In the electrode member, the electrode connection unit, or the circuit board of the embodiment, the take-up spool is taken out from the wire sealant, and the wire unwound from the wire winder around which the wire is wound is joined to the take-up spool. The wire encapsulant is a member for an electrode, an electrode connection unit, or a circuit board, and the wire encapsulant includes a take-up spool, a wire winder including a wire wound around the take-up spool, and a wire winder. A spool case including a housed case body and a lid body for sealing the opening of the case body so as to seal the wire winding body is provided, and the case body is made of a synthetic resin body and has a lid body. Is composed of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing the synthetic resin film.

In the joining method of the embodiment, the take-up spool is taken out from the wire sealant, and the wire is unwound from the wire winder in which the wire is wound around the take-up spool, and the electrode member, the electrode connection unit, or the circuit board is used. The wire encapsulating body is a joining method for joining to, a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and a case body. A spool case is provided with a lid that seals the opening of the case body so as to seal the wire winding body. The case body is made of a synthetic resin body, and the lid body is in close contact with the case body. , And a peelable synthetic resin film or a composite film containing the synthetic resin film.

The wire of the embodiment is a wire taken out from the take-up spool from the wire encapsulation body and unwound from the wire winding body wound around the take-up spool, and the wire encapsulation body includes the take-up spool. A wire winder having a wire wound around a take-up spool, a case body containing the wire winder, and a lid body that seals the opening of the case body so as to seal the wire winder. The case body is made of a synthetic resin body, and the lid body is made of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing the synthetic resin film.

Next, examples of the present invention will be described. The present invention is not limited to the following examples.

(Examples 1 to 8)
The case body of the spool case is made of polyethylene terephthalate (PET), has an upper peripheral edge with a width of 95.0 mm and a depth of 78.0 mm, and the height of the peripheral wall ridge is 61.5 mm. It gradually narrows in the direction, and the widest part width of the bottom surface is 51.3 mm. The thickness of the main part of the case body is 1.0 mm, and the oxygen permeability is 2.0 cm ³ / ( ^m 2.24 h · atm). Two expansion portions are provided on each of the two side walls facing each other of the peripheral wall ridge. The case body has a structure in which the spool is inserted so that the left and right flanges hit the side surface of the peripheral wall ridge in the depth direction (bottom direction) from the opening at the top, and the two sets of expansion parts on both sides of the peripheral wall ridge are at the tip. It is fixed in contact with the spool case.

Further, as the film constituting the lid, a film having a thickness of 60 μm using NY and PE (Example 1), a film having a thickness of 60 μm using silica-coated PET (Example 2), and KOP (polyvinylidene chloride coat). A 65 μm thick film using OPP (biaxially stretched polypropylene) and CP (cellulose propionate) (Example 3), an 80 μm thick film using OPP and PE (Example 4), OPP and PE. 70 μm thick film used (Example 5), 60 μm thick film using OPP and PE (Example 6), 70 μm thick film using PS (Example 7), and HIPS (impact resistant polystyrene). ) Was prepared with a thickness of 50 μm (Example 8). The oxygen permeability of each film is as shown in Table 1.

After storing the metal wire winding body in the above-mentioned case body, it was sealed with the above-mentioned lid body. As the metal wire winding body, an AL-4 take-up spool in which a metal wire having a wire diameter of 20 μm was wound by 3000 m was prepared. The types (materials) of the metal wires in each example are as shown in Table 1. The AL-4 take-up spool is made of aluminum and nickel-plated on the back surface of the body and the outer peripheral surface of the flange. The diameter of the body portion is 50.3 mm, the width is 47.0 mm, and the diameter of the left and right flange portions is 58.5 mm. After storing the metal wire winding body in the case body, the above-mentioned film was thermocompression-bonded to the case body, and the case body was sealed with the lid body to prepare the metal wire encapsulation body of Examples 1 to 8. .. These metal wire encapsulants were subjected to the characteristic evaluation described later. The types of metal wires, the configuration of the case body, and the oxygen permeability of the film are as shown in Table 1. Regarding the configuration of the cases in Table 1, the spool case having the same case body and lid as in Example 1 is described as new, and the spool case according to Comparative Example 1 described later is described as old. The oxygen permeability of the case body and the film was measured by the isobaric method.

(Examples 9 to 11)
In the case body of Example 1, a metal wire encapsulation body is produced in the same manner as in Example 1 except that the case body having no expansion portion on the side wall of the peripheral wall ridge is used and the following film is used for the lid body. Then, it was used for the characteristic evaluation described later. As the lid film, a film having a thickness of 25 μm using EVA (vinyl acetate copolymer polyethylene) (Example 9), a film having a thickness of 15 μm using HIPS (impact resistant polystyrene), and a film having a thickness of 15 μm (Example 10). And a film having a thickness of 15 μm using LDPE (low density polyethylene) (Example 11) was used. The types of metal wires, the configuration of the case body, and the oxygen permeability of the film are as shown in Table 1.

(Comparative Examples 1 to 3)
As a conventional case, a case made of impact-resistant polystyrene (HIPS) and a tray part are prepared. The width and depth of the case portion are 88.0 mm, and the height is 47.7 mm. The width and depth of the tray portion are the same as those of the case portion, and the tray portion just covers the case portion. The conventional case has a structure in which one of the side surfaces of the flange portion of the spool is placed so as to be in contact with the bottom surface of the tray portion. The spool is only fixed by fitting the circular recessed portion in the center of the case portion into the cavity of the body portion, and the case (lid) portion and the tray portion are not made of film, and they are not in close contact with each other. An AL-4 take-up spool in which a metal wire having a wire diameter of 20 μm was wound by 3000 m was placed on this tray portion and covered with a case (lid) portion. The types (materials) of the metal wires in each example are as shown in Table 1. This case was used for the characteristic evaluation described later.

The metal wire encapsulants of Examples 1 to 11 and the cases of Comparative Examples 1 to 3 described above were subjected to the following drop test, vibration and rotation unraveling test after dropping, and rotation unraveling test after storage for one month. The results are shown in Table 1. In the drop test, the case was opened and the metal wire winding body was thrown out of the case, and the vibration and the rotation unwinding test after the drop were not performed.

(Drop test)
The metal wire encapsulants of Examples 1 to 11 and the cases of Comparative Examples 1 to 3 in Table 1 were dropped from a height of 500 mm onto the floor four times, and it was confirmed whether or not the lid was removed from the case body. In the four drop tests, if the lid was removed even once, it was evaluated as "x", and if the lid was not removed even once, it was evaluated as "○".

(Vibration and rotation unraveling test after dropping)
Regarding the metal wire encapsulants of Examples 1 to 11 and the cases of Comparative Examples 1 to 3 in Table 1, first, assuming long-distance land transportation, a vibration test device was used to obtain a vibration width of 2.5 mm and a frequency of 10 Hz. Under the conditions, the take-up spool was vibrated in the left and right flange width directions for 36 hours. The vibrated metal wire encapsulant and case were dropped from a height of 500 mm onto the floor four times. A rotation unwinding test of the metal wire from the take-up spool was performed on the sample after the drop test, and the presence or absence of a defect in the metal wire unwound from the take-up spool was observed at a position away from the flange portion 9. Regarding the above rotation solving test results, when the copper wire 5 drawn from the right side of the flange portion 9 in FIG. 9 is extended beyond the “b” in the figure (the range from “b” to “c” in the figure, Alternatively, the range on the left side of "c") was defined as "feeding failure", and the range from "a" to "b" in the figure was defined as "good". In the rotation unraveling test after vibration and drop, only when none of the above "delivery defects" abnormalities were found among the four spools after the drop test, it was marked as "○" and even one was found to be abnormal. If it is, it is marked as "x".

(Rotation unraveling test after storage)
The metal wire encapsulants of Examples 1 to 11 and the cases of Comparative Examples 1 to 3 in Table 1 were stored for one month in a harsh environment with a temperature of 40 ° C. and a humidity of 85%, separately from the drop test. The rotation solving test was performed. For the evaluation, a rotation unraveling test of four spools was performed for each example, and only when none of the above-mentioned abnormalities of "feeding failure" was observed among the four spools, it was evaluated as "○", and even one of them was evaluated. If any abnormality was found, it was marked as "x".

The results of each of the above tests are shown in Table 1. The comprehensive evaluation in Table 1 is "A" when the drop test, vibration and solution test after drop, and solution test after storage are all "○", and only the drop test is "○". If there was, it was set as "B", and if all the tests were "x", it was set as "X". The overall evaluation is shown in Table 1.

As shown in Table 1, the metal wire encapsulants of Examples 1 to 11 did not come off the lid even in the drop test, and the metal wire encapsulants of Examples 1 to 8 were vibrated and dropped. It was confirmed that there was no feeding defect even after storage.

(Examples 12 to 21)
Using the same case body as in Example 1 and the lid shown below, in the same manner as in Example 1, an AL-4 take-up spool in which a Cu alloy wire having a wire diameter of 20 μm is wound 3000 m, or a wire diameter of 20 μm. An AL-4 take-up spool wound with an Ag alloy wire of 3000 m was airtightly sealed to prepare a metal wire encapsulation body. In Examples 12 to 21, the take-up spool was housed in the case body, the inside of the case was degassed, and then the case body was sealed with a lid. These metal wire encapsulants were subjected to the characteristic evaluation described later.

In Examples 12 to 21, as the films constituting the lid, a film having a thickness of 60 μm using silica-coated PET (Example 12), a film having a thickness of 95 μm using NY and PE (Example 13), and the like. 50 μm thick film using PET (Example 14), 60 μm thick film using PE (Example 15), 65 μm thick film using KOP and CP (Example 16), NY and PE. 80 μm thick film (Example 17), 30 μm thick film using PET (Example 18), 80 μm thick film using PE (Example 19), OPP and PE were used. A film having a thickness of 40 μm (Example 20) and a film having a thickness of 20 μm using HIPS (Example 21) were used. The types of metal wires, the structure of the case body, and the oxygen permeability of the film are as shown in Table 2.

(Comparative Examples 4 to 5)
The AL-4 take-up spool or Ag alloy wire, which is the same as in Examples 12 to 21, is wound with a Cu alloy wire on the tray portion of the conventional case consisting of the case (cover) portion and the tray portion used in Comparative Example 1. The wound AL-4 take-up spool was placed and covered with a case (lid). These cases were used for the characteristic evaluation described later. Since the conventional case is not sealed, it is not degassed.

The above-mentioned drop test was performed on the metal wire encapsulants of Examples 12 to 21 and the cases of Comparative Examples 4 to 5. In addition to the drop test, each sample was stored in an environment with a temperature of 25 ° C. and a humidity of 50% for 1 month, 3 months, and 6 months, and then the above-mentioned rotary unsolving test was performed. The results are shown in Table 2. The comprehensive evaluation in Table 2 is that the drop test is "○" and the drop test is "A" when the rotation solving test after storage for 1 month, 3 months, and 6 months is good. If it is "○" and the rotation solving test after storage for 1 month and 3 months is good, it is regarded as "B", and if the drop test is "○" and the rotation solving test after storage for 1 month is good, the rotation solving test is performed. Was "C", the case where only the drop test was "○" was "D", and the case where all the tests including the drop test were "x" was "X".

As shown in Table 2, the metal wire encapsulants of Examples 12 to 21 did not come off the lid even in the drop test, and the metal wire encapsulants of Examples 12 to 19 had oxygen in the lid. Although the effective storage period differs depending on the permeability, better results were obtained in the rotary unraveling test as compared with Comparative Examples 4 to 5, so that the surface texture of the oxidizing copper alloy wire and the silver alloy wire was maintained. You can see that it can be stored while. In particular, by using a lid having a low oxygen permeability, it becomes possible to store the copper alloy wire and the silver alloy wire well for a long period of time.

In Examples 12 to 19 shown in Table 2, Nitrogen gas having a concentration of 99.9% was sufficiently injected into the case body containing the metal wire winder, which was larger than the volume inside the case. When the metal wire encapsulation body manufactured under the same conditions as 12 to 19 was subjected to a rotation unraveling test after storage under the same conditions as above, it was stored for about twice as long as the result in Table 2. Even if there was, it was confirmed that the result of the rotation solving test was good.

In order to confirm the peel strength between the lid body and the case body, in Examples 1 to 21, the case body is fixed, a spring-type hook is fixed to the film of the lid body, and the film is pulled up vertically to release the film. The load when all were peeled off was measured. The load was in the range of 280 g or more and 2000 g or less for all the samples.

1 ... Metal wire encapsulant, 2 ... Metal wire winding body, 3 ... Spool case, 4 ... Winding spool, 5 ... Metal wire, 6 ... Case body, 7 ... Lid body, 8 ... Cylindrical body, 9 ... Flange portion, 10 ... Cavity portion, 11 ... Winding body accommodating portion, 12 ... Opening portion, 13 ... Upper peripheral edge, 14 ... Expanding portion.

Claims (26)

A wire winder including a take-up spool and a wire wound around the take-up spool, and
A wire sealing body comprising a case body in which the wire winding body is housed, and a spool case including a lid body for sealing the opening of the case body so as to seal the wire winding body. There,
The case body is made of a synthetic resin body.
The lid is a wire-sealed body made of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing the synthetic resin film. The wire encapsulant according to claim 1, wherein the wire is a metal wire. The wire encapsulant according to claim 1, wherein the wire is a wire of gold or a gold alloy, palladium or a palladium alloy, or platinum or a platinum alloy. The wire encapsulant according to claim 1, wherein the wire is an aluminum or aluminum alloy wire. The wire encapsulant according to claim 1, wherein the wire is a palladium-coated copper or a palladium-coated copper alloy wire. The wire encapsulant according to claim 1, wherein the wire is a copper or copper alloy wire. The wire encapsulant according to claim 1, wherein the wire is a silver or silver alloy wire. The wire encapsulant according to any one of claims 1 to 7, wherein the wire is a bonding wire. The wire sealing body according to any one of claims 1 to 5, wherein the oxygen permeability of the lid body and the case body is 8000 cm ³ / ( ^m 2.24 h · atm) or less. The wire sealing body according to any one of claims 1 to 8, wherein the oxygen permeability of the lid body and the case body is 3000 cm ³ / ( ^m 2.24 h · atm) or less. The wire-sealed body according to any one of claims 1 to 10, wherein the peel strength between the lid body and the case body is 280 g or more and 2000 g or less. The wire-sealed body according to any one of claims 1 to 11, wherein the case body sealed with the lid is filled with an inert gas. The wire-sealed body according to any one of claims 1 to 11, wherein the inside of the case body sealed with the lid is degassed. The case body is made of polyvinylidene chloride, polyvinyl chloride, polyethylene terephthalate, polypropylene, polyethylene, ethylene-vinyl alcohol copolymer, nylon, metalxylylene adipamide, biaxially stretched nylon, non-stretched nylon, biaxially stretched. Single layer selected from polypropylene, high density polyethylene, polyvinylidene chloride coated biaxially stretched nylon, polyvinylidene chloride coated unstretched nylon, polyacrylic nitrile, polyamide, polyethylene, unstretched polypropylene, polycarbonate, polystyrene, and impact resistant polystyrene. The wire-sealed body according to any one of claims 1 to 13, which is made of a multi-layered synthetic resin body. The wire sealing body according to claim 14, wherein the case body has a thickness of 0.3 mm or more and 1.5 mm or less. The case body has a substantially prismatic shape with the lid side open.
The take-up spool has a cylindrical body around which the wire is wound, and a pair of flanges provided at both ends of the body.
Claim 1 to claim 1, wherein the wire winding body is housed in the case body so that the central axis of the body portion of the take-up spool is parallel to the bottom portion of the substantially prismatic shape. Item 2. The wire sealing body according to any one of Item 15. 16. The wire of claim 16, wherein the case body is provided on two opposite sides of the substantially square pyramid shape, respectively, and has a single or a plurality of pairs of inflatable portions projecting toward the inside of the case body. Encapsulation. The wire sealing body according to claim 17, wherein the wire winding body is housed in the case body so that the flange portion of the take-up spool is in contact with the expanding portion. The lid is made of polyvinylidene chloride film, polyvinyl chloride film, polyethylene terephthalate film, polypropylene film, polyethylene film, ethylene-vinyl alcohol copolymer film, nylon film, metaxylylene adipamide film, biaxially stretched nylon. Film, non-stretched nylon film, biaxially stretched polypropylene film, high-density polyethylene film, polyvinylidene chloride-coated biaxially stretched nylon film, polyvinylidene chloride-coated non-stretched nylon film, polyacrylic nitrile film, polyamide film, polyethylene film, non-stretched A synthetic resin film selected from a polypropylene film, a polycarbonate film, a polystyrene film, and an impact-resistant polystyrene film, a film with a coat layer provided with an inorganic material coat layer on the synthetic resin film, or the synthetic resin film and the film with the coat layer. The wire sealing body according to any one of claims 1 to 18, which comprises a laminated film obtained by laminating at least two selected from the above. The wire-sealed body according to claim 19, wherein the lid has a thickness of 20 μm or more and 100 μm or less. The wire sealing body according to any one of claims 1 to 20, wherein the winding spool around which the wire is wound has an inner diameter of 47 mm or more and 52 mm or less. The wire-sealed body according to any one of claims 1 to 21, wherein the case body is transparent or translucent. The wire winding body including the winding spool and the wire wound around the winding spool, the case body in which the wire winding body is housed, and the wire winding body are sealed so as to be sealed. A method for manufacturing a wire-sealed body comprising a spool case including a lid for sealing an opening of a case body, and a wire-sealed body including the spool case.
A method for producing a wire-sealed body, wherein the case body is made of a synthetic resin body, and the lid body is made of a synthetic resin film that is in close contact with the case body and can be peeled off, or a composite film containing the synthetic resin film. The take-up spool is taken out from the wire sealant, and the wire is wound around the take-up spool. hand,
The wire sealing body includes a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and the wire winding body. A spool case is provided with a lid for sealing the opening of the case body so as to be sealed, the case body is made of a synthetic resin body, and the lid body is in close contact with the case body. An electrode member, an electrode connection unit, or a circuit board to which the wire is bonded, which is made of a peelable synthetic resin film or a composite film containing the synthetic resin film. A joining method in which the take-up spool is taken out from the wire sealant, the wire is unwound from the wire winder around which the wire is wound around the take-up spool, and the wire is unwound and joined to an electrode member, an electrode connection unit, or a circuit board. And
The wire sealing body includes a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and the wire winding body. A spool case is provided with a lid for sealing the opening of the case body so as to be sealed, the case body is made of a synthetic resin body, and the lid body is in close contact with the case body. A bonding method for joining the wire to the electrode member, the electrode connecting unit, or the circuit board, which is made of a peelable synthetic resin film or a composite film containing the synthetic resin film. A wire unwound from a wire winding body wound on the winding spool after taking out the winding spool from the wire sealing body.
The wire sealing body includes a wire winding body including a winding spool, a wire wound around the winding spool, a case body in which the wire winding body is housed, and the wire winding body. A spool case is provided with a lid for sealing the opening of the case body so as to be sealed, the case body is made of a synthetic resin body, and the lid body is in close contact with the case body. A wire unwound from the wire winding body, which is made of a peelable synthetic resin film or a composite film containing the synthetic resin film.

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