WO2022264647A1 - 成形型メンテナンス用部材、樹脂成形装置及び樹脂成形品の製造方法 - Google Patents
成形型メンテナンス用部材、樹脂成形装置及び樹脂成形品の製造方法 Download PDFInfo
- Publication number
- WO2022264647A1 WO2022264647A1 PCT/JP2022/016373 JP2022016373W WO2022264647A1 WO 2022264647 A1 WO2022264647 A1 WO 2022264647A1 JP 2022016373 W JP2022016373 W JP 2022016373W WO 2022264647 A1 WO2022264647 A1 WO 2022264647A1
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- Prior art keywords
- resin
- mold
- maintenance
- molding
- mold maintenance
- Prior art date
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Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/70—Maintenance
- B29C33/72—Cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
- B29C43/18—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles incorporating preformed parts or layers, e.g. compression moulding around inserts or for coating articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
- B29C43/32—Component parts, details or accessories; Auxiliary operations
- B29C43/34—Feeding the material to the mould or the compression means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/1753—Cleaning or purging, e.g. of the injection unit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/02—Transfer moulding, i.e. transferring the required volume of moulding material by a plunger from a "shot" cavity into a mould cavity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14639—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles for obtaining an insulating effect, e.g. for electrical components
Definitions
- the present invention relates to a mold maintenance member, a resin molding apparatus, and a method for manufacturing a resin molded product.
- resin molding technology is widely used for resin sealing (resin molding) electronic elements such as ICs and semiconductor chips (hereinafter sometimes simply referred to as "chips"). More specifically, for example, by sealing a chip with resin, an electronic component in which the chip is resin-sealed (also referred to as an electronic component as a finished product, or a package, etc., hereinafter simply referred to as "electronic component” There is.) can be.
- Patent Document 1 does not describe automatic conveyance when supplying the cleaning member to the mold. That is, the cleaning member is manually supplied to the mold. Therefore, the cleaning member must be supplied to the mold while the inside of the resin molding apparatus is open and exposed to the outside air. In such a case, even in a space such as a clean room or a clean booth where air cleanliness is ensured, the inside of the resin molding apparatus may be contaminated with contamination.
- Patent Document 2 describes that a cleaning substrate and a cleaning resin are separately and automatically supplied to a molding die.
- the cleaning resin may adhere to and remain on the molding die, making it difficult to remove.
- a mold release recovery resin is used in place of the cleaning resin as the mold maintenance resin, the release recovery resin similarly adheres to the mold and becomes difficult to remove. There is a risk.
- an object of the present invention is to provide a resin molding apparatus and a method of manufacturing a resin molded article.
- the mold maintenance member of the present invention having a support and a mold maintenance resin,
- the molding die maintenance resin is arranged on at least one surface of the support.
- the resin molding apparatus of the present invention is characterized by having a mold for resin molding and a conveying mechanism for conveying the mold maintenance member of the present invention to the mold.
- the method for producing a resin molded product of the present invention comprises: A method for manufacturing a resin molded product using a mold, a mold maintenance step of supplying the mold maintenance member of the present invention to the mold to maintain the mold; A resin molding step of supplying a resin molding object and a resin material to the mold after the mold maintenance step and performing resin molding; characterized by comprising
- the mold maintenance member can be automatically supplied to the mold and can suppress or prevent the resin for mold maintenance from remaining in the mold.
- a resin molding apparatus and a method for manufacturing a resin molded product can be automatically supplied to the mold and can suppress or prevent the resin for mold maintenance from remaining in the mold.
- FIG. 1 is a cross-sectional view showing an example of the configuration of the mold maintenance member of the present invention.
- FIG. 2 is a cross-sectional view showing another example of the configuration of the mold maintenance member of the present invention.
- FIG. 3 is a cross-sectional view showing still another example of the configuration of the mold maintenance member of the present invention.
- 4(a) to 4(d) are cross-sectional views each showing an example of the shape of the recesses on the roughened surface of the support in the mold maintenance member of the present invention.
- FIG. 5 is a flow chart showing an example of a method for manufacturing a resin molded product according to the present invention.
- FIG. 6 is a plan view showing an example of the overall configuration of the resin molding apparatus of the present invention.
- the support may be a support that has been subjected to bonding strength improvement treatment for improving bonding strength to the mold maintenance resin.
- the bonding strength improvement treatment may be, for example, a roughening treatment for roughening the surface on which the mold maintenance resin is placed.
- the surface roughening treatment may be, for example, a treatment of forming recesses in the surface of the support on which the mold maintenance resin is arranged.
- the bonding strength improving treatment may be, for example, an adhesive layer forming treatment for forming an adhesive layer on the surface of the support on which the mold maintenance resin is arranged.
- the mold maintenance member of the present invention may further have an adhesive layer, and the mold maintenance resin may be adhered to at least one surface of the support by the adhesive layer.
- At least one surface of the support may be roughened, and a mold maintenance resin may be placed on the roughened surface.
- the roughened surface may be a surface roughened by forming recesses. Further, for example, a portion having a larger diameter than the opening of the recess may exist inside the recess.
- the mold maintenance resin may be a cleaning resin.
- the mold maintenance resin may be a releasability recovery resin.
- the mold maintenance member of the present invention in which the mold maintenance resin is a cleaning resin, is supplied to the mold and the The mold is cleaned, and then the mold maintenance member of the present invention, in which the mold maintenance resin is a release property recovery resin, is supplied to the mold to recover the mold release property.
- the mold maintenance member of the present invention in which the mold maintenance resin is a cleaning resin, is supplied to the mold and the After cleaning the mold, if the cleaning resin is dirty, the mold maintenance member according to the present invention, wherein the mold maintenance resin is a cleaning resin, is again supplied to the mold.
- the mold maintenance member of the present invention in which the mold maintenance resin is a releasing property recovery resin, is placed in the mold. It may be supplied to recover the releasability of the mold, or the resin molding step may be performed.
- the surface may be, for example, placed in direct contact with the surface, or may be placed via other members or the like without direct contact with the surface.
- the state in which the mold maintenance resin is arranged on the surface of the support means, for example, that the mold maintenance resin is in direct contact with the surface of the support. It may be in a state in which the mold maintenance resin does not come into direct contact with the surface of the support but is arranged via another member or the like.
- the state in which the mold maintenance resin is not in direct contact with the surface of the support but is arranged via other members or the like is not particularly limited. It may be in a state of being adhered to a surface or the like.
- the mold is not particularly limited, but may be, for example, a metal mold or a ceramic mold.
- the resin molded product is not particularly limited, but may be, for example, an electronic component in which a chip is resin-sealed.
- the term “electronic component” may refer to a chip before being resin-sealed or may refer to a state in which the chip is resin-sealed.
- the chip is also referred to as an "electronic element", and the “electronic component” refers to an electronic component in which the chip is resin-sealed (an electronic component as a finished product).
- the terms "chip” and "electronic device” are synonymous.
- chip refers to a chip before resin encapsulation, and specifically includes, for example, an IC, a semiconductor chip, a semiconductor element for power control, a resistance element, a capacitor element, and the like. Chips are included.
- a “semiconductor element” refers to, for example, a circuit element made of a semiconductor.
- a chip before being resin-sealed is referred to as a "chip” or an “electronic element” for the sake of convenience in order to distinguish it from an electronic component after resin-sealing.
- the "chip” or “electronic element” in the present invention is not particularly limited as long as it is a chip before being resin-sealed, and does not have to be chip-shaped.
- the resin material before molding and the resin after molding are not particularly limited, and may be, for example, thermosetting resins such as epoxy resins and silicone resins, or thermoplastic resins. .
- a composite material partially containing a thermosetting resin or a thermoplastic resin may also be used.
- the form of the resin material before molding includes, for example, granular resin (including granular resin), liquid resin, sheet-like resin, tablet-like resin, and the like.
- the liquid resin may be in a liquid state at room temperature, and also includes a molten resin that is melted by heating to become a liquid state.
- the form of the resin may be any other form as long as it can be supplied to a mold cavity, pot, or the like.
- the resin molding method is not particularly limited.
- compression molding may be used, but transfer molding, injection molding, and the like may also be used.
- FIG. 1 shows an example of the mold maintenance member of the present invention.
- this mold maintenance member 10 has mold maintenance resin 12 disposed on both surfaces of a plate-like support 11 .
- the mold maintenance resin 12 is in direct contact with both surfaces of the support 11 .
- the material of the support 11 is not particularly limited, but for example, a material that is resistant to deterioration due to heat during maintenance of the mold is preferable.
- the material of the support 11 may be, for example, metal, glass, silicon, glass epoxy material, resin material, ceramic, or the like.
- the metal is not particularly limited, and may be, for example, copper or the like.
- the glass epoxy material is an epoxy plate containing glass fibers, and may be similar to the glass epoxy substrate used for printed circuit boards, for example.
- the resin material is not particularly limited, but may be, for example, an epoxy plate or the like.
- the shape of the support 11 is also not particularly limited, and can be, for example, a shape corresponding to the shape of the mold cavity.
- the shape of the support 11 may be, for example, a circular shape, a rectangular shape, or the like when viewed from above (in FIG. 1, when viewed from above or below the page). Further, the shape of the support 11 is not limited to a plate shape, and may be a block shape or the like. preferable.
- the thickness of the support 11 is also not particularly limited, but can be appropriately set in consideration of the strength, cost, etc. of the support 11, for example.
- the mold maintenance resin 12 is not particularly limited, but may be, for example, a cleaning resin or a releasability recovery resin. Further, the thickness, shape, and the like of the mold maintenance resin 12 are not particularly limited, and can be appropriately set according to, for example, the thickness, shape, and the like of the cavity of the mold.
- the cleaning resin is not particularly limited, and for example, a general mold cleaning resin may be used.
- the cleaning resin may be, for example, a melamine resin.
- Melamine resins may include, for example, melamine-formaldehyde resins. Only one type of cleaning resin may be used, or a plurality of types may be used in combination.
- a commercially available product may be used, or a self-produced product may be used.
- self-manufacturing for example, in the same manner as the method for producing a cleaning resin composition described in the examples of WO2005/115713A1, or the method for producing a sheet-shaped mold cleaning material using the cleaning resin composition, or You may manufacture it referring to it.
- the method for producing the melamine resin or melamine-formaldehyde resin may be, for example, the same as that for the releasing property recovery resin described later.
- the color of the cleaning resin is not particularly limited, it is preferable to use a light color such as white or gray close thereto, for example.
- a light color such as white or gray close thereto, for example.
- the release property recovery resin is not particularly limited, and for example, a general release property recovery resin may be used.
- a general release property recovery resin for example, a commercially available product may be used, or a self-produced product may be used.
- one type of releasing property recovery resin may be used alone, or a plurality of types may be used in combination.
- the releasability recovery resin may be selected as appropriate, for example, in the same manner as the release recovery member described in WO2005/115713A1 or with reference thereto.
- the releasability recovery resin is not particularly limited, but may be, for example, a thermosetting resin such as a melamine-based resin, an epoxy-based resin, or a phenol-based resin.
- a thermosetting resin such as a melamine-based resin, an epoxy-based resin, or a phenol-based resin.
- melamine-based resins are useful due to their curability and the like.
- the melamine-based resin is, for example, a resin obtained by methylolating a triazine such as melamine with formaldehyde or the like, and may be, for example, a melamine-formaldehyde resin.
- Melamine-formaldehyde resins are produced, for example, in the form of an aqueous solution.
- an aqueous solution is dried by spray drying or the like to obtain a powdery substance, and after blending the pulp with the aqueous solution, a granular substance is obtained by drying. Tablets are obtained by compression.
- a sheet-like material is obtained by impregnating a sheet-like base material with an aqueous solution of melamine-formaldehyde resin and drying it.
- a plate-like product can be obtained, for example, by tableting the powdery or granular product described above with a tableting machine.
- a sheet-like resin can be produced simply by passing the base material through an aqueous solution of melamine-formaldehyde resin and then drying it.
- the impregnation rate of the resin into the base material can be adjusted to the desired impregnation rate by, for example, changing the type of base material, adjusting the concentration of the resin liquid, or adjusting the degree of squeezing of the impregnated resin liquid. be able to.
- the impregnation rate to the substrate can be adjusted by adjusting the curability and fluidity of the resin.
- the releasing property recovery resin may be, for example, a resin obtained by adding a release agent to the above resin.
- the release agent is not particularly limited, and the same release agent as a general release agent may be used.
- release agents include long-chain fatty acids such as stearic acid and behenic acid, metal salts of long-chain fatty acids such as zinc stearate and calcium stearate, esters such as carnauba wax, montan wax, and partially saponified esters of montanic acid. waxes, long-chain fatty acid amides such as stearylethylenediamide, paraffins such as polyethylene wax, and the like.
- the content of these release agents is not particularly limited, but for example, about 0.5 to 20 parts by mass, or about 1 to 5 parts by mass, per 100 parts by mass of the resin (eg, the above-mentioned thermosetting resin) may be
- the amount of release agent is not too small. From the viewpoint of suppressing or preventing appearance defects of the resin molded product, it is preferable that the amount of the release agent is not too large.
- the method for producing the releasing property recovery resin is not particularly limited. curing catalysts, etc.) may be incorporated.
- the formulation may be uniformly mixed with, for example, a kneader, ribbon blender, Henschel mixer, ball mill, or the like. Further, for example, a release agent can be added to an aqueous melamine resin solution to produce a resin for recovering releasing properties.
- the support may be a support that has undergone bonding strength improvement treatment to improve the bonding strength to the mold maintenance resin.
- Such bonding strength improvement treatment may be, for example, a roughening treatment for roughening the mold maintenance resin arrangement surface as described above, or, for example, the mold maintenance resin arrangement surface of the support.
- An adhesive layer forming treatment may be used to form an adhesive layer on the substrate.
- Such bonding strength improvement treatment makes it more difficult for the mold maintenance member to separate from the support, and further suppresses or prevents the resin for mold maintenance from remaining on the mold. can be done.
- the support and mold maintenance member subjected to such bonding strength improvement treatment are not particularly limited, but examples thereof include the examples shown in FIGS. 2 and 3 described later.
- FIG. 2 Another example of the mold maintenance member of the present invention is shown in the cross-sectional view of FIG. As shown, this mold maintenance member 10 is the same as the mold maintenance member 10 of FIG. be.
- the mold maintenance resin 12 is in direct contact with the roughened surface 11 a of the support 11 .
- the method of roughening the surface of the support 11 and the state of the roughened surface 11a will be described in detail later with examples.
- FIG. 3 shows still another example of the mold maintenance member of the present invention.
- this mold maintenance member 10 has an adhesive layer 13 , and mold maintenance resin 12 is adhered to both surfaces of a support 11 by the adhesive layer 13 .
- the mold maintenance member 10 of FIG. 3 is the same as the mold maintenance member 10 of FIG.
- the material of the adhesive layer 13 is not particularly limited, but for example, it may be formed of a general adhesive or the like.
- the material of the adhesive layer 13 is preferably a material that has a sufficient adhesive strength to the support 11 and the mold maintenance resin 12, and is preferably a material that is less likely to lose its adhesive strength due to the heat of the mold.
- the material of the adhesive layer 13 may be, for example, an epoxy thermosetting resin or the like.
- the thickness of the adhesive layer 13 is also not particularly limited, but may be set appropriately in consideration of, for example, adhesive strength, cost, and the like.
- the surface of the support 11 may be the roughened surface 11a as in FIG. 2, and the adhesive layer 13 may be laminated on the roughened surface 11a. .
- the roughening treatment method for roughening the surface of the support 11 to form the roughened surface 11a is not particularly limited, but for example, a general roughening treatment method is appropriately used. can also For the roughening treatment method, an appropriate method may be selected according to the material of the support 11, for example.
- Examples of the roughening treatment method for the surface of the support 11 include blasting, wet etching, dry etching, plasma treatment, treatment with a roughening agent, grinding, and film forming treatment such as plating. In the blasting treatment, for example, an abrasive can be ejected onto the support 11 to roughen the surface of the support 11 .
- the surface of the support 11 can be roughened by etching the support 11 by immersing it in an etchant.
- the etchant is not particularly limited, but can be appropriately selected according to, for example, the material of the support 11 (for example, metal, glass, semiconductor, etc. described above).
- the surface of the silicon wafer may be roughened by forming an uneven structure by anisotropic etching using an alkaline aqueous solution as an etchant.
- dry etching for example, the surface of the support 11 can be roughened by irradiating the support 11 with plasma in a vacuum device and etching.
- an etching mask for example, a photoresist mask, a metal mask, etc.
- the support 11 can be roughened by plasma treatment such as irradiating the support 11 with plasma in an atmospheric pressure atmosphere.
- the surface of the support 11 can be chemically roughened by, for example, coating the surface of the support 11 with a roughening agent.
- the surface of the support 11 can be physically roughened by grinding using a grinder or the like.
- the surface of the support 11 can be roughened by forming a roughened layer (film) on the surface of the support 11 by plating or the like.
- the surface shape of the roughened surface 11a of the support 11 is not particularly limited, and may be roughened by forming concave portions, for example, as described above.
- the shape of the recess is also not particularly limited, and may be, for example, a groove shape or a hole shape. Further, as described above, there may be a portion inside the recess that has a larger diameter than the opening of the recess.
- a mask having a pattern for forming recesses is placed on the upper surface of the support 11 made of silicon or the like.
- the mask is not particularly limited, for example, as described above, a photoresist, a metal mask, or the like can be used.
- etching is performed on the support 11 on which the mask is arranged. Dry etching, for example, can be used as the etching.
- the inner wall surface of the concave portion (groove portion or hole portion), such as an inverted trapezoidal shape (inverted tapered shape), has a shape in which a portion having a larger diameter than the opening portion of the concave portion exists in cross-sectional view. It may be used as a condition.
- the method for controlling the shape of the concave portion is not particularly limited, and for example, the shape of the concave portion may be appropriately controlled by a known method. Specifically, for example, the shape of the recess may be controlled by controlling the etching conditions. For example, "DENKI KAGAKU" 50, No. 7 (1982), pp.
- FIGS. 4(a) to 4(d) Examples of the shape of the roughened surface 11a of the support 11 of FIG. 2 are shown in cross-sectional views of FIGS. 4(a) to 4(d).
- 4A to 4D are longitudinal sectional views of the surface 11a of the support 11 (sectional views viewed from the same direction as in FIG. 2).
- 4A to 4D are examples in which recesses 11b are formed on the surface of the support 11 and roughened, but the shapes of the recesses 11b are different.
- FIG. 4A shows an example in which the concave portion 11b has an inverted trapezoidal shape (inverted tapered shape).
- FIG. 4(b) is an example of a shape in which the recess 11b has a narrowed portion between the bottom surface and the opening due to a curved line.
- FIGS. 4A and 4B there is a portion inside the recess 11b that has a larger diameter than the opening of the recess 11b.
- 4A and 4B show the structure in which the etching mask is removed from the support 11, the etching mask 14 is not removed from the support 11 as shown in FIG. It is also possible to have a configuration in which it is placed in the In FIG. 4(c), the opening of the recess 11b is covered with the etching mask 14, and as a result, a portion having a larger diameter than the opening of the recess 11b exists inside the recess 11b. Become.
- the type of etching (for example, wet etching, dry etching, etc.), etc. are not particularly limited and can be selected arbitrarily.
- a method for controlling the shape of the concave portion 11 is not particularly limited, and is, for example, as described above.
- the recess 11b may be a through hole penetrating from one surface (surface) of the support 11 to the other surface (back surface).
- the method of forming such a through-hole is not particularly limited, either.
- the through-hole may be formed by placing masks on both the front and back surfaces of the support 11 and etching both surfaces.
- the mold maintenance member of the present invention may be disposable or may be reused.
- the used mold maintenance resin may be replaced with new mold maintenance resin, and only the support may be reused.
- a release layer may be provided in order to facilitate release of the mold maintenance resin from the support. 1, between the roughened surface 11a and the mold maintenance resin 12 in FIG. 2, and between the support 11 in FIG. and the adhesive layer 13, or between the adhesive layer 13 and the mold maintenance resin 12 in FIG.
- the release layer prevents the mold maintenance resin 12 from peeling off from the support 11 when the mold maintenance member 10 is used, and allows the mold maintenance resin 12 to be peeled off from the support 11 after the mold maintenance member 10 is used.
- the release layer may be made of a material that can be decomposed after use of the mold maintenance member 10 .
- a method for decomposing the release layer is not particularly limited, but examples thereof include UV (ultraviolet) laser irradiation, chemical treatment, thermal release, and the like. Among these, UV laser irradiation is simple and efficient and preferable.
- the material for forming the release layer may be, for example, a photocurable resin.
- the photocurable resin is not particularly limited, but may be a resin that is cured by irradiation with visible light, or a resin that is cured by irradiation with invisible light such as infrared rays or ultraviolet rays.
- FO-WLP Fan-Out Wafer Level Package
- a glass carrier wafer and an EMC (Epoxy Molding Compound) wafer are bonded with an adhesive layer, and a release layer material is placed between the adhesive layer and the glass carrier wafer. is described.
- the document describes that the bonded wafer can be smoothly peeled off without applying heat or force by irradiating the peeling layer with a UV laser.
- the same document also describes the use of an aromatic polymer in which a functional group exhibiting very high UV absorption is introduced into the main chain as a release layer material.
- the method of manufacturing a resin molded product of the present invention is a method of manufacturing a resin molded product using a mold, wherein the mold maintenance member of the present invention is supplied to the mold to maintain the mold. and a resin molding step of supplying the resin molding object and the resin material to the molding die after the molding die maintenance process and performing resin molding.
- the mold maintenance member of the present invention may be supplied to the mold cavity of the mold and preformed in the mold cavity.
- the preforming method is not particularly limited, but may be, for example, the same preforming method using a general cleaning resin or releasing property recovery resin. Specifically, for example, it can be preformed by clamping the mold and heating. As a result, maintenance of the mold (for example, cleaning of the mold or restoration of releasability) can be performed.
- the temperature of the mold at the time of preforming, the time of preforming, etc. are not particularly limited. can be set as appropriate.
- the mold maintenance member of the present invention is characterized in that the support and the mold maintenance resin are integrated. For this reason, the method for manufacturing a resin molded product of the present invention, as described above, can automatically supply the mold maintenance member to the mold, and can supply the mold maintenance resin to the mold. It has the advantageous effect of being able to suppress or prevent residuals.
- the cleaning member when the cleaning member is manually supplied to the mold, the cleaning member is supplied to the mold while the inside of the resin molding apparatus is open and exposed to the outside air. In such a case, even in a space such as a clean room or a clean booth where air cleanliness is ensured, the inside of the resin molding apparatus may be contaminated with contamination.
- the method for manufacturing a resin molded product according to the present invention can automatically supply the mold maintenance member to the mold, so that such problems can be solved.
- the resin molding step in which the resin molding object and the resin material are supplied to the mold after the mold maintenance step to perform resin molding is not particularly limited. It may be carried out under the same conditions as the molding method.
- the resin molding method in the resin molding step is not particularly limited. For example, as described above, compression molding may be used, but transfer molding, injection molding, and the like may also be used. Further, the resin molding step in the method for producing a resin molded product of the present invention may be, for example, resin molding without using a release film.
- the releasability of the mold is improved by supplying the mold maintenance member of the present invention, in which the mold maintenance resin is a releasability recovery resin, to the mold to recover the mold releasability. It is possible to perform resin molding without using a release film.
- the resin molding step in the method for producing a resin molded product of the present invention is not limited to this, and may be, for example, resin molding using a release film.
- the resin molding step is not particularly limited, and may be, for example, similar to or conforming to a general method for manufacturing a resin molded product.
- the resin molding process may be performed, for example, as follows. First, a resin molding object is supplied and set in a mold having an upper mold and a lower mold, and a resin material is supplied into the mold cavity of the mold.
- the object to be resin-molded is not particularly limited, but may be, for example, a substrate on which a chip is mounted. Next, the resin material in the mold cavity is made liquid or fluid.
- the resin material may be in a liquid or fluid state before it is supplied into the mold cavity, but it may also be melted by heating in the mold cavity to be in a liquid or fluid state. Furthermore, the upper mold and lower mold of the mold are clamped. As a result, for example, the chip or the like attached to the resin molding object is immersed in the resin material in the mold cavity, and the resin material in the mold cavity can be pressurized. Then, the resin material is solidified (for example, cured by heating) in the mold cavity. Thereby, a resin molded article is formed. Further, the upper mold and the lower mold are opened to take out the resin molded product. Thus, the resin molding process can be performed.
- the resin molding process using the compression molding process is not limited to this and is arbitrary. It may be the same or according to it.
- the resin molding method is not particularly limited as described above.
- compression molding may be used, but transfer molding, injection molding, etc. may also be used.
- the resin molding process using transfer molding, injection molding, or the like is not particularly limited, and may be, for example, similar to or similar to general transfer molding, injection molding, or the like.
- the mold maintenance member of the present invention in which the mold maintenance resin is a cleaning resin, is supplied to the mold for molding.
- the mold maintenance member of the present invention in which the mold maintenance resin is a releasing property recovery resin, may be supplied to the mold to restore the releasing property of the mold.
- the mold maintenance member of the present invention in which the mold maintenance resin is a cleaning resin, is supplied to the mold.
- the mold maintenance member according to the present invention in which the mold maintenance resin is a cleaning resin
- the mold maintenance member of the present invention in which the mold maintenance resin is a releasing property recovery resin, is supplied to the mold to release the mold. The properties may be restored or a resin molding step may be performed.
- the flow chart of FIG. 5 shows an example of a method for manufacturing such a resin molded product.
- step S1 the molding die is cleaned by supplying the molding die maintenance member of the present invention, in which the molding die maintenance resin is a cleaning resin, to the molding die.
- This step S1 corresponds to the "mold maintenance step” in the method of manufacturing a resin molded product of the present invention.
- step S1 if the cleaning resin is dirty, step S1 is performed again.
- step S1 if the cleaning resin is not contaminated, as shown in step S2, the "resin molding step” in the method for manufacturing a resin molded product of the present invention is performed. In this manner, the method for producing a resin molded product of the present invention can be carried out to produce a resin molded product.
- the color of the cleaning resin it is preferable to set the color of the cleaning resin to a light color such as white or gray close thereto.
- a light color such as white or gray close thereto.
- the problem described above can be solved by judging whether or not foreign matter remains in the mold by not looking at the mold directly, but by observing the deposits on the cleaning resin and the traces of transfer of the foreign matter. can do.
- the work object to be molded in resin molding
- the fine work is fragile and is damaged even if a small amount of foreign matter is present in the mold.
- the presence or absence of foreign matter in the mold can be determined not only by the adhesion of the foreign matter to the cleaning resin, but also by the transfer trace of the foreign matter. Therefore, according to the present invention, for example, even a slight amount of foreign matter in the mold can be removed, and damage to fine workpieces can be reduced.
- the mold maintenance member can be automatically supplied to the mold without manual work, so that the mold maintenance member can be supplied to the mold without exposing the inside of the mold to the outside air. supply is possible. Therefore, according to the present invention, it is possible to suppress or prevent foreign matter such as contamination from entering the mold.
- step S2 reactive molding process
- step S1 cleaning of the mold
- step S2 reactive molding process
- step S1 cleaning of the mold
- the mold releasability recovery preliminary molding using a releasability recovery resin
- the resin molding apparatus of the present invention is characterized by having a mold for resin molding and a conveying mechanism for conveying the mold maintenance member of the present invention to the mold.
- the resin molding apparatus of the present invention is not particularly limited, but for example, it is as follows.
- FIG. 6 is a plan view schematically showing an example of the configuration of the resin molding apparatus of the present invention.
- the resin molding apparatus shown in the figure is an apparatus for manufacturing electronic parts (resin molded products).
- this device includes a release film cutting module (release film cutting mechanism) 1010, a discharge module 1020, a compression molding module (compression molding mechanism) 1030, a transport module (transport mechanism) 1040, and a control unit 1050. From the right side of the drawing, they are arranged in the order described above. Each of the modules is separated from each other, but can be attached to and detached from adjacent modules.
- the discharge module 1020 includes a discharge mechanism for discharging a resin material for resin molding onto a discharge area on a release film (discharge target), as will be described later.
- the resin material is not particularly limited, and may be, for example, a liquid resin or a granular resin.
- a release film cutting module (release film cutting mechanism) 1010 can cut and separate a circular release film from a long release film.
- the release film cutting module 1010 includes a film fixing table mounting mechanism 1011 , a roll of release film 1012 and a film gripper 1013 .
- a table (not shown) is mounted on the upper surface of the film fixing table mounting mechanism 1011 .
- the table is a fixing table for fixing the release film 100, and can be called a "film fixing table".
- the tip of the release film is pulled out from the roll release film 1012 to cover the upper surface of the table placed on the film fixing table placing mechanism 1011, and the release film is fixed on the table. can be done.
- the film gripper 1013 fixes the tip of the release film pulled out from the release film roll 1012 on the side opposite to the release film roll 1012 when viewed from the film fixing table mounting mechanism 1011, and holds the release film. It can be pulled out from the roll release film 1012 .
- the release film can be cut by a cutter (not shown) to form a circular release film 100 .
- the release film cutting module 1010 includes a waste material processing mechanism (not shown) for processing the remaining release film (waste material) after cutting the circular release film 100 .
- the ejection module 1020 includes an ejection mechanism, a resin loader (resin transport mechanism) 1021, and a post-processing mechanism 1022.
- the ejection mechanism includes, for example, a release film 100, a table (fixed table, not shown), and a dispenser 200 to which a nozzle for ejecting the resin material is attached.
- FIG. 6 is a plan view (viewed from above), and the table is not shown because it is hidden by the release film 100 and cannot be seen. Also, the nozzle is not shown in FIG. 6 because it is hidden behind the dispenser 200 and cannot be seen.
- the ejection mechanism further includes a film fixing base moving mechanism 1023. As shown in FIG.
- a table and release film 100 are placed on the film fixing table moving mechanism 1023 .
- the film fixing table moving mechanism 1023 is the same as the film fixing table placing mechanism 1011 described above, and can move between the release film cutting module 1010 and the ejection module 1020 .
- the resin loader 1021 and the post-processing mechanism 1022 are integrated.
- a resin loader 1021 is used to supply a resin material (not shown in FIG. 6) onto the release film 100 adhered and fixed to the lower end surface of the frame member (circular frame).
- a member (circular frame) and a release film 100 can be attached. Then, in this state, the resin material can be supplied and set in a lower mold cavity for compression molding (to be described later) in the compression molding module 1030 while being discharged onto the release film 100 .
- the compression molding module 1030 includes a mold 1031 as shown.
- Mold 1031 is not particularly limited, but may be, for example, a mold.
- the mold 1031 has an upper mold and a lower mold (not shown) as main components, and the lower mold cavity 1032 is circular as shown.
- the molding die 1031 is further provided with an upper mold substrate setting portion (not shown) and a lower mold cavity bottom member (not shown) for resin pressurization.
- a chip for example, a semiconductor chip mounted on a pre-resin sealing substrate (pre-molding substrate) described later is resin-sealed in a sealing resin (resin package) in a lower die cavity.
- a sealed substrate (molded substrate) can be formed.
- Compression molding module 1030 may include, for example, a compression molding mechanism.
- the resin molding apparatus of FIG. 6 has two compression molding modules 1030 , and the two compression molding modules 1030 are arranged adjacently between the discharge module 1020 and the transfer module 1040 . Further, in the resin molding apparatus of FIG. 6, the transfer module 1040 and the molding module 1030 adjacent thereto are detachable, or the discharge module 1020 and the molding module 1030 adjacent thereto are detachable, or are both removable. Furthermore, the two molding modules 1030 are detachable from each other.
- the resin molding apparatus of the present invention is not limited to this, and for example, the number of compression molding modules 1030 may be one, or three or more.
- a transport mechanism (transport module) 1040 is capable of transporting the chip (resin-sealed object) before resin-sealing together with the substrate, and transporting the electronic component (resin-molded product) after resin-sealing.
- transport mechanism (transport module) 1040 includes substrate loader 1041 , rail 1042 and robot arm 1043 .
- a rail 1042 protrudes from the transport mechanism (transport module) 1040 and reaches the area of the compression molding module 1030 and the discharge module 1020 .
- a substrate loader 1041 can place a substrate 1044 thereon.
- the substrate 1044 may be a pre-resin-sealed substrate (pre-molding substrate) 1044a or a resin-sealed substrate (molded substrate) 1044b.
- the pre-resin encapsulation substrate (pre-molding substrate) 1044a corresponds to the “object to be resin-molded” in the resin-molding step in the method for manufacturing a resin-molded product of the present invention.
- Substrate loader 1041 and resin loader 1021 can move on rails 1042 between discharge module 1020 , compression molding module 1030 and transfer module 1040 .
- the transfer module 1040 includes a substrate storage section, and can accommodate a pre-resin-sealed substrate (pre-molding substrate) 1044a and a resin-sealed substrate (molded substrate) 1044b.
- a chip (not shown, for example, a semiconductor chip) is attached to the pre-molding substrate 1044a.
- a chip is sealed with a resin (sealing resin) obtained by solidifying a resin material, and an electronic component (resin molded product) is formed.
- the robot arm 1043 can, for example, support and transport the substrate 1044 from below. Robot arm 1043 can be used, for example, as follows.
- the pre-molding substrate 1044a taken out from the storage portion of the pre-molding substrate 1044a can be turned upside down and placed on the substrate loader 1041 with the chip mounting surface facing downward.
- the molded substrate 1044b can be accommodated in the molded substrate accommodating section with the sealing resin side facing upward.
- the robot arm 1043 can also support and convey mold maintenance members from below, for example, as will be described later.
- the control unit 1050 cuts the release film, discharges the resin material, conveys the pre-sealing substrate and the sealed substrate, conveys the resin material, conveys the release film, heats the mold, clamps the mold, and Control mold opening etc.
- the control section 1050 controls each operation in the release film cutting module 1010 , the discharge module 1020 , the forming module 1030 and the conveying module 1040 .
- the resin molding apparatus of the present invention may function as a fully automatic machine by controlling each component with the control section.
- the resin molding apparatus of the present invention may function as a manual machine without using the control unit, but it is efficient if each component is controlled by the control unit.
- the control unit 1050 includes a calculation unit and a storage unit (not shown).
- control unit 1050 is arranged is not limited to the position shown in FIG. can also be placed outside the Also, the control unit 1050 can be configured as a plurality of control units, at least some of which are separated according to the operation to be controlled.
- the transfer module 1040 that supplies the substrate and the ejection module 1020 that ejects the resin material onto the release film are arranged to face each other with the compression molding module 1030 interposed therebetween. It is Furthermore, a release film cutting module 1010 for forming a circular release film is arranged outside the ejection module 1020 .
- This resin molding apparatus is a separate type resin molding apparatus in which each of the modules described above is arranged separately.
- the arrangement of each module of the resin molding apparatus of the present invention is not particularly limited, and the arrangement other than that shown in FIG. 6 may be used. For example, a configuration in which a required number of compression molding modules are detachably arranged can be adopted.
- the release film cutting module (circular release film forming module), the discharge module and the transfer module (substrate module) can be arranged close to one side of the compression molding module.
- the release film module, the ejection module, and the substrate module are parent modules, and the compression molding module is a child module (parent-child type).
- the required number of compression molding modules can be arranged in series.
- the release film cutting module, the discharge module, and the transfer module (substrate module) may be integrated.
- the release film cutting module, the discharge module, and the conveying module (substrate module) may be integrated into one molding module, and the entirety in which these components are integrated is a resin molding apparatus (for example, It functions independently as a compression molding device).
- the arrangement is as follows. preferably. That is, the molding modules are arranged side by side along the direction in which the rails used when the components including the substrate loader, the resin loader, and the post-processing mechanism are moved extend. Also, each module of the resin molding apparatus of the present invention can be made detachable from each other by using a connecting mechanism such as bolts and nuts, or by using an appropriate positioning mechanism. Further, another compression molding module can be detachably attached to the compression molding module. This allows the compression molding module to be increased or decreased after the fact.
- the method for producing a resin molded product of the present invention is a method for producing a resin molded product using a mold, wherein the mold maintenance member of the present invention is supplied to the mold for maintenance of the mold. and a resin molding step of supplying the resin molding object and the resin material to the molding die after the molding die maintenance process and performing resin molding.
- the resin molding step in which the resin molding object and the resin material are supplied to the mold after the mold maintenance step to perform resin molding is not particularly limited, but the resin molding apparatus shown in FIG. can be used, for example, as follows. The mold maintenance process performed prior to the resin molding process will be described later.
- the film gripper 1013 In the resin molding process using the resin molding apparatus of FIG. is pulled out by the film gripper 1013 . Then, the removed release film covers the upper surface of the table placed on the film fixing table placing mechanism 1011, and the release film is fixed on the table. In this state, the release film is cut by a cutter (not shown) to form a circular release film 100 as described above. The remaining release film (waste material) obtained by cutting and separating the circular release film 100 is processed by a waste material processing mechanism (not shown).
- the film fixing table placing mechanism 1011 (film fixing table moving mechanism 1023) is placed on a table (not shown) and the release film 100 together with the nozzles (not shown) in the ejection module 1020. ) below the resin supply port.
- the resin material is discharged from the dispenser 200 into the discharge area on the release film 100 (discharge step).
- the resin ejection position can be moved, for example, by moving (or rotating) the film fixing table moving mechanism 1023 together with the table and release film 100 placed thereon.
- release film 100 and the resin material discharged to the discharge area thereon are moved from the film fixing table moving mechanism 1023 and held by the resin loader (resin conveying mechanism) 1021 .
- Release film 100 can be moved from film fixing table moving mechanism 1023 to resin loader 1021 by holding release film 100 with a holding mechanism (not shown) of resin loader 1021 .
- the robot arm 1043 supports and takes out the pre-molding substrate 1044a housed in the housing portion for the pre-molding substrate (resin molding object) 1044a from below. Then, as described above, the pre-molding substrate 1044a taken out from the housing portion for the pre-molding substrate 1044a is turned upside down by the robot arm 1043. FIG. As a result, the pre-molding substrate 1044 a is placed on the substrate loader 1041 with the chip mounting surface side facing downward, and transferred into the compression molding module 1030 . At this time, the pre-molding substrate 1044a is supplied and set on the mold surface of the upper mold (molding mold 1031).
- the release film 100 and the resin loader 1021 holding the resin material are moved on the rail 1042 together with the post-processing mechanism 1022 integrated with the resin loader 1021 to be transported into the compression molding module 1030 (transporting step). .
- the release film 100 by placing the release film 100 on the mold surface of the lower mold, the release film 100 and the resin material can be supplied into the lower mold cavity 1032 having a circular opening.
- the resin material is heated inside the lower mold cavity 1032 .
- this heating for example, when a liquid resin that is liquid at room temperature is used as the resin material, the viscosity of the liquid resin decreases, and when a powdery resin is used as the resin material, the powdery resin melts. It becomes a liquid molten resin.
- the mold 1031 upper mold and lower mold
- the chip mounted on the pre-molding substrate 1044a set in the upper mold is immersed in the resin material in the lower mold cavity 1032, and the resin material in the lower mold cavity 1032 is pressurized by the cavity bottom member. can be done.
- the resin material is solidified (for example, cured by heating) in the mold 1031 (lower mold cavity 1032), and the electronic component is sealed with the resin (sealing resin) 20 after solidification.
- a resin-sealed substrate 1044b molded substrate, electronic component
- the mold 1031 upper mold and lower mold
- the resin-sealed substrate 1044b is taken out by the substrate loader 1041, and further transported to the transport module 1040 side to be accommodated.
- the upper mold surface cleaner (not shown) of the post-processing mechanism 1022 is used to clean the upper mold. Clean the board setting part of the In parallel with this, or at a different timing, a release film removing mechanism (not shown) of the post-processing mechanism can be used to remove the unnecessary release film from the lower mold surface.
- the substrate loader 1041 on which the resin-sealed substrate 1044b (electronic component) is placed may be moved from inside the compression molding module 1030 to inside the transfer module 1040 .
- the robot arm 1043 takes out the resin-sealed substrate (molded substrate, electronic component) 1044b from the substrate loader 1041 and turns it over.
- the resin-sealed substrate (molded substrate, electronic component) 1044b is accommodated in the resin-sealed substrate (molded substrate, electronic component) accommodating portion with the sealing resin side facing upward.
- the resin molding process can be performed to manufacture an electronic component (resin molded product).
- the mold maintenance process performed prior to the resin molding process using the resin molding apparatus of FIG. 6 can be performed, for example, as follows.
- the release film and the resin material discharged onto the discharge area thereon are not used. That is, the release film and the resin material discharged to the discharge area thereon are not supplied into the mold 1031 and the lower mold cavity 1032 .
- a mold maintenance member (not shown) is stored instead of the pre-molding substrate 1044a in the storage portion of the pre-molding substrate 1044a, and the mold maintenance member is used instead of the pre-molding substrate 1044a.
- the mold maintenance member is not particularly limited, but may be, for example, the mold maintenance member 10 described with reference to FIGS. 1 to 3 show an example in which the mold maintenance resin 12 is arranged on both sides of the support 11, but the present invention is not limited to this.
- the mold maintenance resin 12 may be arranged only on one surface of the .
- the robot arm 1043 supports and takes out the molding die maintenance member stored in the storage portion of the pre-molding substrate 1044a from below. Then, the mold maintenance member taken out from the storage portion of the pre-molding substrate 1044 a is placed on the substrate loader 1041 by the robot arm 1043 and transported into the compression molding module 1030 . At this time, the mold maintenance member is supplied and set on the mold surface of the upper mold (molding mold 1031).
- the mold 1031 (upper mold and lower mold) is clamped. Then, the mold is maintained by heating the mold maintenance resin of the mold maintenance member with the heat of the mold 1031 for pre-molding.
- cleaning inside the lower mold cavity 1032 may be performed using a cleaning resin as a mold maintenance resin.
- a resin for recovering mold releasability may be used as a mold maintenance resin to recover the releasability in the lower mold cavity 1032 .
- the mold 1031 (upper mold and lower mold) is opened. Then, the used mold maintenance member (not shown) is taken out by the substrate loader 1041, and further transported to the transport module 1040 side for storage.
- the substrate loader 1041 on which the used mold maintenance members are placed may be moved from inside the compression molding module 1030 to inside the transfer module 1040 .
- the robot arm 1043 takes out the used mold maintenance member from the substrate loader 1041 and turns it over.
- the used molding die maintenance member is stored in the storage portion of the resin-sealed substrate (molded substrate, electronic component) 1044b.
- the mold maintenance process can be performed.
- a series of molding die maintenance processes for example, after performing a molding die maintenance process using a cleaning resin as a molding die maintenance resin once or a plurality of times, a cleaning resin is used as a molding die maintenance resin for recovering releasability.
- a mold maintenance process using resin may be performed.
- mold maintenance members are stored in the storage portion of the pre-molding substrate 1044a, and used mold maintenance members are stored in the storage portion of the resin-sealed substrate 1044b.
- the present invention is not limited to this, and an accommodating portion for a mold maintenance member may be provided separately from the accommodating portion for the pre-molding substrate 1044a, or a used mold maintenance member may be provided separately from the accommodating portion for the resin-sealed substrate 1044b.
- a storage unit for the mold maintenance member may be provided.
- the pre-molding substrate 1044a may be accommodated in the pre-molding substrate 1044a accommodating portion, and the resin-sealed substrate 1044b may be accommodated in the resin-sealed substrate 1044b accommodating portion.
- the location of the accommodating portion for the mold maintenance member is not particularly limited and is arbitrary. The location where the mold maintenance member storage unit is provided may be, for example, near the storage unit for the pre-molding substrate 1044a, for example, it may be provided in a part of the transfer module 1040 or in a part of the control unit 1050.
- the location of the used molding die maintenance member accommodating portion is not particularly limited and is arbitrary. is.
- the location where the used molding die maintenance member storage section is provided may be, for example, the vicinity of the storage section for the resin-sealed substrate 1044b. may be provided as part of the
- FIG. 6 shows an example in which only the lower mold of the mold has a mold cavity, and the mold maintenance member is supplied and set on the mold surface of the upper mold.
- the mold maintenance member has the mold maintenance resin placed only on one surface of the support, and the lower mold cavity is maintained with this mold maintenance resin. good too.
- the invention is not so limited.
- the mold maintenance resin is placed on both sides of the support.
- a mold maintenance member may be used, and maintenance of both the upper mold and the lower mold may be performed with the mold maintenance resin.
- FIG. 6 an example of using a release film in the resin molding process in the method of manufacturing a resin molded product has been described.
- the present invention is not limited to this, and the release film may not be used in the resin molding process.
- the substrate transfer mechanism (transfer module 1040) also serves as the transfer mechanism for the mold maintenance members
- the resin molding apparatus of the present invention is not limited to this, and for example, a transport mechanism for mold maintenance members may be provided separately from the substrate transport mechanism.
- the present invention is not limited to electronic parts, and can be applied to the production of any other resin molded products.
- the present invention can be applied when optical parts such as lenses, optical modules, light guide plates, etc., or other resin products are manufactured by compression molding.
- mold maintenance member 11 support 11a roughened surface of support 11 11b concave portion of support 11 12 mold maintenance resin 13 adhesive layer 14 mask 20 sealing resin
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- Engineering & Computer Science (AREA)
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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
Abstract
Description
支持体と、成形型メンテナンス用樹脂とを有し、
前記支持体の少なくとも一つの面上に前記成形型メンテナンス用樹脂が配置されていることを特徴とする。
成形型を用いた樹脂成形品の製造方法であって、
前記本発明の成形型メンテナンス用部材を前記成形型に供給して前記成形型のメンテナンスを行う成形型メンテナンス工程と、
前記成形型メンテナンス工程後に樹脂成形対象物及び樹脂材料を前記成形型に供給して樹脂成形を行う樹脂成形工程と、
を含むことを特徴とする。
図1の断面図に、本発明の成形型メンテナンス用部材の一例を示す。図示のとおり、この成形型メンテナンス用部材10は、板状の支持体11の両面の面上に成形型メンテナンス用樹脂12が配置されている。同図では、成形型メンテナンス用樹脂12は、支持体11の両面の面上に直接接触している。
本発明の樹脂成形品の製造方法は、前述のとおり、成形型を用いた樹脂成形品の製造方法であって、本発明の成形型メンテナンス用部材を成形型に供給して成形型のメンテナンスを行う成形型メンテナンス工程と、成形型メンテナンス工程後に樹脂成形対象物及び樹脂材料を成形型に供給して樹脂成形を行う樹脂成形工程と、を含むことを特徴とする。
本発明の樹脂成形装置は、前述のとおり、樹脂成形用の成形型と、本発明の成形型メンテナンス用部材を成形型に搬送する搬送機構と、を有することを特徴とする。これ以外は、本発明の樹脂成形装置は、特に限定されないが、例えば、以下のとおりである。
図6の平面図に、本発明の樹脂成形装置の構成の一例を、模式的に示す。同図の樹脂成形装置は、電子部品(樹脂成形品)を製造するための装置である。図示のとおり、この装置は、離型フィルム切断モジュール(離型フィルム切断機構)1010、吐出モジュール1020、圧縮成形モジュール(圧縮成形機構)1030、搬送モジュール(搬送機構)1040及び制御部1050が、同図右側から、前記順序で並んで配置されている。前記各モジュールは、それぞれ別に分かれているが、隣接するモジュールに対し、互いに着脱可能である。吐出モジュール1020は、後述するように、離型フィルム(吐出対象物)上における吐出領域に樹脂成形用の樹脂材料を吐出する吐出機構を含む。なお、樹脂材料は、特に限定されず、例えば、液状樹脂でもよいし顆粒樹脂でもよい。
つぎに、図6の圧縮成形装置を用いた樹脂成形品の製造方法の一例について説明する。
11 支持体
11a 支持体11の粗面化された表面
11b 支持体11の凹部
12 成形型メンテナンス用樹脂
13 接着層
14 マスク
20 封止樹脂
100 離型フィルム(吐出対象物)
200 ディスペンサ
1000 樹脂成形装置
1010 離型フィルム切断モジュール(離型フィルム切断機構)
1011 フィルム固定台載置機構
1012 ロール状離型フィルム
1013 フィルムグリッパ
1020 吐出モジュール(吐出機構)
1021 樹脂ローダ
1022 後処理機構
1023 フィルム固定台移動機構
1030 圧縮成形モジュール(圧縮成形機構)
1031 成形型
1032 下型キャビティ
1040 搬送モジュール(搬送機構)
1041 基板ローダ
1042 レール
1043 ロボットアーム
1044a 樹脂封止前基板(成形前基板)
1044b 樹脂封止済基板(成形済基板)
1050 制御部
Claims (11)
- 支持体と、成形型メンテナンス用樹脂とを有し、
前記支持体の少なくとも一つの面上に前記成形型メンテナンス用樹脂が配置されていることを特徴とする成形型メンテナンス用部材。 - 前記支持体は、前記成形型メンテナンス用樹脂に対する接合強度を向上させる接合強度向上処理が施された支持体である請求項1記載の成形型メンテナンス用部材。
- さらに、接着層を有し、
前記成形型メンテナンス用樹脂が、前記接着層により、前記支持体の少なくとも一つの面に接着されている請求項1又は2記載の成形型メンテナンス用部材。 - 前記支持体の少なくとも一つの面が粗面化され、
前記粗面化された面上に成形型メンテナンス用樹脂が配置されている請求項1から3のいずれか一項に記載の成形型メンテナンス用部材。 - 前記粗面化された面は、凹部形成により粗面化された面であり、
前記凹部の内部において、前記凹部の開口部よりも径が大きい部分が存在する請求項4記載の成形型メンテナンス用部材。 - 前記成形型メンテナンス用樹脂が、クリーニング用樹脂である請求項1から5のいずれか一項に記載の成形型メンテナンス用部材。
- 前記成形型メンテナンス用樹脂が、離型性回復用樹脂である請求項1から6のいずれか一項に記載の成形型メンテナンス用部材。
- 樹脂成形用の成形型と、請求項1から7のいずれか一項に記載の成形型メンテナンス用部材を前記成形型に搬送する搬送機構と、を有することを特徴とする樹脂成形装置。
- 成形型を用いた樹脂成形品の製造方法であって、
請求項1から7のいずれか一項に記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型のメンテナンスを行う成形型メンテナンス工程と、
前記成形型メンテナンス工程後に樹脂成形対象物及び樹脂材料を前記成形型に供給して樹脂成形を行う樹脂成形工程と、
を含むことを特徴とする樹脂成形品の製造方法。 - 前記成形型メンテナンス工程において、請求項6記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型のクリーニングを行い、その後、請求項7記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型の離型性を回復する、請求項9記載の樹脂成形品の製造方法。
- 前記成形型メンテナンス工程において、請求項6記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型のクリーニングを行い、
その後、前記クリーニング用樹脂が汚れている場合は、再度、請求項6記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型のクリーニングを行い、前記クリーニング用樹脂が汚れていない場合は、請求項7記載の成形型メンテナンス用部材を前記成形型に供給して前記成形型の離型性を回復するか、又は前記樹脂成形工程を行う、請求項9又は10記載の樹脂成形品の製造方法。
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