WO2017081881A1 - 樹脂封止装置及び樹脂封止方法 - Google Patents
樹脂封止装置及び樹脂封止方法 Download PDFInfo
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- WO2017081881A1 WO2017081881A1 PCT/JP2016/069184 JP2016069184W WO2017081881A1 WO 2017081881 A1 WO2017081881 A1 WO 2017081881A1 JP 2016069184 W JP2016069184 W JP 2016069184W WO 2017081881 A1 WO2017081881 A1 WO 2017081881A1
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- substrate
- resin
- lower mold
- mold
- resin sealing
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Images
Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
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- 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
- B29C43/36—Moulds for making articles of definite length, i.e. discrete articles
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/29—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the material, e.g. carbon
- H01L23/293—Organic, e.g. plastic
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/3121—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation
- H01L23/3128—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed a substrate forming part of the encapsulation the substrate having spherical bumps for external connection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L23/00—Details of semiconductor or other solid state devices
- H01L23/28—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection
- H01L23/31—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape
- H01L23/3107—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed
- H01L23/315—Encapsulations, e.g. encapsulating layers, coatings, e.g. for protection characterised by the arrangement or shape the device being completely enclosed the encapsulation having a cavity
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
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- H—ELECTRICITY
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- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/15—Details of package parts other than the semiconductor or other solid state devices to be connected
- H01L2924/151—Die mounting substrate
- H01L2924/153—Connection portion
- H01L2924/1531—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface
- H01L2924/15311—Connection portion the connection portion being formed only on the surface of the substrate opposite to the die mounting surface being a ball array, e.g. BGA
Definitions
- the present invention relates to a resin sealing device and a resin sealing method.
- a hole (a hole for pouring resin from one surface side of the substrate to the other surface side, hereinafter referred to as “opening”) is formed in the substrate, and transfer molding is performed.
- resin sealing method in which one surface of the substrate is resin-sealed, and resin is sealed from the opening to the other surface side by resin.
- the resin is placed in one (upper mold or lower mold) cavity (upper mold cavity or lower mold cavity). May be filled first.
- the resin when the resin is filled in the lower mold cavity (lower mold cavity) first, there arises a problem that the substrate warps (deforms) in a convex shape.
- the resin may be filled in one of the cavities first due to gravity, flow resistance, or the like. In that case, the resin flows from the one surface side of the substrate to the other surface side of the substrate through the opening of the substrate.
- substrate may swell toward the said other surface side by the flow resistance at the time of resin flowing from the opening of a board
- the resin is filled in the other cavity with the substrate swelled.
- Resin pressure is applied to the substrate by filling one or the other cavity with resin, but the resin pressure applied to one and the other surface of the substrate is the same pressure (one and the other cavity are connected by the opening of the substrate) Therefore, no force is generated to return the substrate from a swelled state to a flat state. Therefore, the curing of the resin proceeds with the other surface of the substrate swelled, and the molding is completed with the substrate swelled (deformed state). That is, if one surface and the other surface (both surfaces) of the substrate are simultaneously resin-sealed using the resin sealing method, the substrate may be deformed.
- an object of the present invention is to provide a resin sealing device and a resin sealing method capable of both suppressing the warpage of the substrate and performing both-side molding of the substrate.
- the first resin sealing device of the present invention comprises: A resin sealing device for resin sealing both sides of a substrate, Including a molding module for compression molding with an upper mold and a lower mold,
- the upper mold can be resin-sealed by compression molding the upper surface of the substrate
- the lower mold can be resin-sealed by compression molding the lower surface of the substrate
- One of the upper mold and the lower mold includes a rigid member and a first elastic member
- the other of the upper mold and the lower mold is a second elastic member having a spring constant larger than that of the first elastic member.
- the upper mold further includes an upper mold base member and an upper mold frame member, and the upper mold frame member is disposed so as to surround a cavity of the upper mold
- the lower mold further includes a lower mold base member and a lower mold member, and the lower mold member is disposed so as to surround the cavity of the lower mold
- the upper mold member hangs down from the upper mold base member via one of the first elastic member and the second elastic member
- the lower mold frame member is placed on the lower mold base member via the other of the first elastic member and the second elastic member
- the second resin sealing device of the present invention is A resin sealing device for resin sealing both sides of a substrate, A first molding module for compression molding, a second molding module for compression molding, and a substrate pin, With the first molding module, one surface of the substrate can be resin-sealed by compression molding, and with the second molding module, the other surface of the substrate can be resin-sealed by compression molding.
- the substrate pin is provided so as to protrude upward on the outside of a lower mold cavity provided in at least one of the first molding module and the second molding module, The substrate pin may be mounted with the substrate separated from the upper surface of the lower mold.
- the third resin sealing device of the present invention is A resin sealing device for resin sealing both sides of a substrate, A first molding module for compression molding, and a second molding module for compression molding,
- the first molding module includes an outside air blocking member and substrate support means, and the outside air blocking member can block the molding die of the first molding module from outside air.
- the mold is blocked from outside air, the mold cavity is decompressed, and the other surface of the substrate not sealed with resin is supported by the substrate support means.
- One side of the substrate can be resin-sealed by compression molding
- the second molding module is characterized in that the other surface of the substrate can be resin-sealed by compression molding in a state where the one surface of the substrate is resin-sealed.
- the first resin sealing method of the present invention comprises: A resin sealing method for resin sealing both sides of a substrate, Using the first resin sealing device of the present invention, A first resin sealing step of resin-sealing the upper surface of the substrate by compression molding with the upper mold; A second resin sealing step of resin-sealing the lower surface of the substrate by compression molding with the lower mold, In the first resin sealing step and the second resin sealing step, Movement of the upper mold member and the lower mold member in the direction in which the upper mold and the lower mold are opened and closed in the frame member of the one mold including the rigid body member in a state where the substrate is sandwiched between the upper mold member and the lower mold member. It is stopped by the rigid member.
- the second resin sealing method of the present invention is: A resin sealing method for resin sealing both sides of a substrate, Using the second resin sealing device of the present invention, A first resin sealing step of resin-sealing one surface of the substrate by compression molding with the first molding module; A second resin sealing step of resin-sealing the other surface of the substrate by compression molding with the second molding module; And a substrate placing step of placing the substrate in a state of being separated from the upper surface of the lower mold by the substrate pins.
- the third resin sealing method of the present invention is: A resin sealing method for resin sealing both sides of a substrate, Using the third resin sealing device of the present invention, In a state where the mold of the first molding module is blocked from outside air, the inside of the mold cavity is depressurized, and the other surface of the substrate not sealed with resin is supported by the substrate support means. A first resin sealing step of resin-sealing the one surface of the substrate by compression molding with the first molding module; After the first resin sealing step, the second surface of the substrate is resin-sealed by compression molding with the second molding module in a state where the one surface of the substrate is resin-sealed. And 2 resin sealing steps.
- FIG. 1 is a cross-sectional view of a first resin sealing device according to the first embodiment.
- FIG. 2 is a cross-sectional view illustrating an example of one step in the first resin sealing method of the first embodiment.
- FIG. 3 is a cross-sectional view illustrating another step in the same first resin sealing method as FIG.
- FIG. 4 is a cross-sectional view illustrating still another process in the same first resin sealing method as FIG.
- FIG. 5 is a cross-sectional view illustrating still another process in the same first resin sealing method as FIG.
- FIG. 6 is a cross-sectional view illustrating still another step in the first resin sealing method same as FIG.
- FIG. 7 is a process cross-sectional view illustrating still another process in the same first resin sealing method as FIG.
- FIG. 1 is a cross-sectional view of a first resin sealing device according to the first embodiment.
- FIG. 2 is a cross-sectional view illustrating an example of one step in the first resin sealing method of the first embodiment.
- FIG. 8 is a cross-sectional view illustrating still another process in the same first resin sealing method as FIG.
- FIG. 9 is a cross-sectional view illustrating yet another step in the same first resin sealing method as FIG.
- FIG. 10 is a cross-sectional view illustrating a modification of the first resin sealing method same as FIG.
- FIG. 11 is a cross-sectional view illustrating still another step in the first resin sealing method same as FIG.
- FIG. 12A is a cross-sectional view of the same resin sealing device as in FIGS.
- FIG.12 (b) is sectional drawing which shows the modification of the resin sealing apparatus of Fig.12 (a).
- Fig.13 (a) is sectional drawing which shows another modification of the resin sealing apparatus of Fig.12 (a).
- FIG.13 (b) is sectional drawing which shows another modification of the resin sealing apparatus of Fig.12 (a).
- FIG. 14A is a cross-sectional view of the second resin sealing device of Example 2 and the substrate that is resin-sealed thereby.
- FIG. 14B shows a cross-sectional view of a modified example of the substrate pin of FIG. 15A to 15C are process cross-sectional views illustrating an example of the resin sealing method of the second embodiment.
- FIG. 17 is a cross-sectional view of the second molding module of the third resin sealing device of Example 3 and the substrate that is resin-sealed thereby.
- FIG. 16 shows sectional drawing of the 1st shaping
- FIG. 17 is a cross-sectional view of the second molding
- FIG. 18 is a cross-sectional view illustrating a step in the third resin sealing method according to the third embodiment.
- FIG. 19 is a cross-sectional view illustrating yet another step in the same resin sealing method as FIG.
- FIG. 20 is a cross-sectional view illustrating still another step in the same resin sealing method as FIG.
- FIG. 21 is a cross-sectional view illustrating still another step in the same resin sealing method as FIG. 22A and 22B are cross-sectional views illustrating substrates that are resin-sealed by the resin-sealing device of the present invention.
- FIGS. 23A and 23B are sectional views of a resin sealing device not provided with the rigid member and a substrate that is resin-sealed thereby.
- “resin sealing” means that the resin is in a cured (solidified) state, but is not limited to this when the molding is performed on both sides as described later. That is, in the present invention, when batch molding is performed on both surfaces described later, the “resin sealing” may be a state in which at least the resin is filled in the mold cavity at the time of mold clamping, and the resin is cured ( It is not solidified) and may be in a fluid state.
- Each of the first resin sealing device, the second resin sealing device, and the third resin sealing device of the present invention includes a molding module for compression molding, and both surfaces of the substrate are resin sealed by compression molding. It is possible to do.
- the resin sealing apparatus of this invention after sealing one side of the said board
- the other surface is sealed with resin, by supporting one surface with a resin for compression molding, it is possible to suppress warping of the substrate even when resin pressure is applied to the substrate from the other surface side. it can.
- an equal resin pressure can be applied to both sides of the substrate almost simultaneously.
- the substrate used in the present invention does not need to be provided with an opening for allowing the resin to flow from one surface side of the substrate to the other surface side.
- the resin does not flow from the one surface side of the substrate through the opening to the other surface side of the substrate. For this reason, deformation (warping) of the substrate due to flow resistance when the resin passes through the opening of the substrate does not occur.
- both sides of the substrate can be resin-sealed without opening an opening in the substrate, there is no cost due to the opening in the substrate.
- the flow distance until resin sealing is short, and generation of voids (bubbles) and wire deformation can be suppressed.
- one of the upper mold and the lower mold includes a rigid member and a first elastic member, and the other of the upper mold and the lower mold is the first mold.
- a second elastic member having a spring constant larger than that of the first elastic member, and in the state of sandwiching the substrate by the upper mold member and the lower mold member at the time of resin sealing, The movement of the frame member in the direction to open and close the upper mold and the lower mold is stopped by the rigid member. For example, when the part of the one mold including the rigid member abuts against the tip of the rigid member, the movement of the one frame member in the direction to open and close the upper mold and the lower mold is stopped. May be. More specifically, for example, it is as follows.
- a stopper (the rigid member) is provided so as to hang down from the upper mold base member.
- the stopper abuts against the upper mold frame member during mold clamping, so that the upper mold frame member can be prevented from rising beyond a predetermined position (target package thickness position).
- a predetermined position target package thickness position.
- the stopper comes into contact with the upper mold member, there is also an effect of suppressing the inclination of the upper mold and the lower mold member (substrate) due to variations in the resin charge, as will be described later.
- the lower mold is provided with an elastic member (the second elastic member) having a larger spring constant than the upper mold elastic member (the first elastic member).
- the upper mold member can be pressed against the stopper more reliably during mold clamping.
- an elastic member having a large spring constant is provided in the lower mold, so that the upper mold elastic member is more elastically deformed, so that the upper mold cavity is filled with the resin first. can do. Details will be described in Example 1 described later. Further, it is preferable that the amount of resin supplied to the upper mold cavity is approximately the same as the volume of the cavity when the upper mold member is fixed by the stopper. By doing so, when the upper mold cavity is filled with the resin, it is possible to reduce the deformation of the substrate due to at least the excess or shortage of the resin amount.
- the resin in the upper mold cavity supports the substrate, so that deformation of the substrate can be suppressed.
- the upper mold includes the stopper (the rigid member) and the first elastic member and the lower mold includes the second elastic member.
- the lower mold includes a stopper (the rigid member) and the first elastic member
- the upper mold includes the second elastic member. You can leave.
- the numbers of the first elastic member and the second elastic member are not particularly limited and are arbitrary.
- the “second elastic member having a spring constant larger than that of the first elastic member” in the present invention means that the spring constant of the single elastic member (individual) is the single elastic member (individual). It is not limited to the meaning that it is larger than the spring constant of the elastic member. This is because, for example, a single product can change the spring constant as a whole by changing the number of installed springs even with the same spring constant. Therefore, in the case where a plurality of elastic members are provided, it is only necessary that the total spring constant of the plurality of second elastic members is larger than the total spring constant of the plurality of first elastic members.
- the rigid member is not particularly limited, and examples thereof include metals such as steel, aluminum, and iron, plastics such as fiber reinforced plastic (FRP), wood, and plaster.
- metals such as steel, aluminum, and iron
- plastics such as fiber reinforced plastic (FRP), wood, and plaster.
- the height of the rigid body member is not particularly limited. However, when the rigid body member is provided on the upper mold, for example, the upper frame member is positioned at a predetermined position (target package thickness position or target cavity height). The upper mold member may be disposed so as to abut against the rigid member. When the rigid member is provided in the lower mold, for example, when the lower mold member is at a predetermined position (target package thickness position or target cavity height), the lower mold member is What is necessary is just to arrange
- the rigid member is, for example, a direction in which one of the upper mold member and the lower mold member opens and closes the upper mold and the lower mold by the rigid member (for example, in FIGS. It is only necessary to be installed at a position where the movement in the vertical direction of the paper surface is stopped.
- the position where the rigid member is installed is, for example, as follows.
- the rigid member when the rigid member is provided on the upper mold, the rigid member may be provided so as to hang down from the upper mold base member, or may be provided so as to protrude from the upper surface of the upper mold member.
- the rigid body member When the rigid body member is provided so as to hang down from the upper mold base member, the movement of the upper mold frame member is stopped when the upper mold frame member comes into contact with the distal end of the rigid body member during mold clamping.
- the rigid body member is provided so as to protrude from the upper surface of the upper mold member, the movement of the upper mold member is stopped when the upper mold base member comes into contact with the tip of the rigid member during mold clamping.
- the rigid member When the rigid member is provided in the lower mold, for example, the rigid member may be provided so as to protrude from the upper surface of the lower mold base member, or may be provided so as to hang from the lower mold member.
- the rigid body member When the rigid body member is provided so as to protrude from the upper surface of the lower mold base member, the movement of the lower mold frame member is stopped when the lower mold frame member comes into contact with the distal end of the rigid body member during mold clamping.
- the lower mold base member comes into contact with the tip of the rigid member at the time of mold clamping, so that the movement of the lower mold member is stopped.
- the first elastic member and the second elastic member are not particularly limited, and examples thereof include elastic resins such as springs, coil springs, disc springs, and silicone rubber.
- the upper mold includes a rigid member and a first elastic member
- the lower mold includes the second elastic member
- the upper mold is used to form the substrate. It may be possible that the upper surface is resin-sealed by compression molding and the lower surface of the substrate is resin-sealed by compression molding with the lower mold.
- the upper mold includes the rigid member and the first elastic member
- the lower mold includes the second elastic member
- the upper frame member is interposed via the first elastic member.
- the lower mold member is mounted on the lower mold base member via the second elastic member, and the rigid member is suspended from the upper mold base member.
- the upper mold frame member comes into contact with the distal end of the rigid member while the substrate is sandwiched between the upper mold frame member and the lower mold frame member. Thereby, the movement of the upper mold member in the direction in which the rigid member is provided may be stopped.
- the lower mold includes the rigid member and the first elastic member
- the upper mold includes the second elastic member
- the upper mold includes the second elastic member
- the upper mold is interposed via the first elastic member.
- the upper mold member is suspended from the upper mold base member via the second elastic member, and the rigid member is disposed on the lower mold member.
- the lower mold frame member comes into contact with the distal end of the rigid body member while the substrate is sandwiched between the upper mold frame member and the lower mold frame member. Thereby, the movement of the lower mold member in the direction in which the rigid member is provided may be stopped.
- the second resin sealing device of the present invention is characterized in that the substrate can be placed in a state where the substrate pin is separated from the upper surface of the lower mold. “Mounting” here includes “fixing”. As a result, the second resin sealing device reduces the pressure in the lower mold cavity because the substrate does not cover the lower mold cavity when the pressure in the mold is reduced when the intermediate mold is clamped. be able to. As a result, it is possible to efficiently prevent (reduce) excess air or the like from remaining in the lower mold cavity, thereby further suppressing the warpage of the substrate. When excess air or the like remains in the lower mold cavity, air or the like is included in the lower mold cavity in addition to the resin.
- the lower mold cavity is filled with the resin or the like earlier than the upper mold cavity, and pressure (resin pressure) is applied to the lower mold cavity first. Therefore, if excess air or the like remains in the lower mold cavity, the substrate may be warped. According to the substrate pin, such a problem can be prevented.
- substrate pins may be integrated with the lower mold or separated from the lower mold.
- the upper and lower mold modules may serve as both the first molding module and the second molding module.
- the upper and lower mold modules are provided with an upper mold and a lower mold.
- the upper die can be resin-sealed by compression molding with the upper die
- the lower surface of the substrate can be resin-sealed by compression molding with the lower die. Accordingly, both surfaces of the substrate can be collectively formed using a single forming module, so that the production efficiency is improved and the configuration is simplified, so that the cost can be reduced, which is preferable.
- the substrate pin may include, for example, a protruding substrate positioning portion at the tip by making it a stepped pin.
- the substrate positioning part may be capable of placing the substrate on the substrate pin by being inserted into a through hole provided in the substrate. This is preferable because the substrate can be placed on the substrate pin at a predetermined position stably.
- a relief hole for the substrate positioning portion may be provided in the upper mold member or the like.
- the first resin sealing device of the present invention may include a substrate pin similarly to the second resin sealing device.
- the substrate pin is provided on the outer side of the lower mold cavity of the molding module so as to protrude upward, and the substrate pin can be placed in a state where the substrate is separated from the upper surface of the lower mold. It may be.
- the substrate pin may include, for example, a protruding substrate positioning portion at the tip by making it a stepped pin.
- the substrate positioning part may be capable of placing the substrate on the substrate pin by being inserted into a through hole provided in the substrate.
- Each of the first resin sealing device, the second resin sealing device, and the third resin sealing device of the present invention may further include an ejector pin.
- the ejector pin is provided so as to be able to be inserted and removed from at least one cavity surface of the upper mold and the lower mold provided in at least one of the first molding module and the second molding module.
- the tip When the mold is opened, the tip may be raised or lowered so as to protrude from the cavity surface, and when the mold is clamped, the tip may be raised or lowered so as not to protrude from the cavity surface. This is preferable because the resin-sealed substrate can be easily released from the lower mold.
- the molding die provided with the ejector pins may be, for example, an upper die, a lower die, or both an upper die and a lower die.
- the first resin sealing device, the second resin sealing device, and the third resin sealing device of the present invention may further include a substrate transfer mechanism and a resin transfer mechanism.
- the substrate transport mechanism transports a resin-sealed substrate to a predetermined position of each molding module.
- the resin transport mechanism may transport resin to be supplied to the substrate onto the substrate.
- the resin transport mechanism may transport the resin to the lower mold cavity, for example.
- the resin sealing device may be configured such that the substrate transport mechanism also serves as the resin transport mechanism.
- the second resin sealing device and the third resin sealing device of the present invention may further include a substrate reversing mechanism.
- the substrate reversing mechanism reverses the top and bottom of the resin-sealed substrate.
- one molding die may be placed per one molding module, Two may be placed in parallel.
- a spring is provided on a block (member) that constitutes a cavity of a molding module for compression molding, and pressure is applied to the resin. May be added.
- a ball screw or a hydraulic cylinder or the like may be attached to the block (member) that constitutes the cavity, and pressure may be applied by direct motion.
- both the upper mold and the lower mold are molded resin-sealed products.
- a release film for facilitating release from the mold may be provided, may be provided on either one, or may not be provided.
- the first resin sealing device, the second resin sealing device, and the third resin sealing device of the present invention are vacuum (reduced pressure) in order to reduce voids (bubbles) as necessary.
- the first molding module has a lower mold, and the lower mold allows the lower surface of the substrate to be resin-sealed by compression molding
- the second molding module may have an upper mold, and the upper mold may be capable of resin-sealing the upper surface of the substrate by compression molding.
- the substrate support means is not particularly limited.
- the other surface of the substrate is supported (pressurized) with a high-pressure gas or a gel-like solid. It may be a means.
- the substrate to be resin-sealed by the first resin sealing device, the second resin sealing device, and the third resin sealing device of the present invention for example, chips are mounted on both surfaces thereof. It is a mounting board.
- a chip 1 and a wire 3 for electrically connecting the chip 1 and the substrate 2 are provided on one of both surfaces thereof.
- a mounting substrate 11 provided with a flip chip 4 and a ball terminal 5 as an external terminal can be cited.
- the ball terminal 5 when molding both surfaces of the substrate 2 having the above-described configuration, it is necessary to expose the ball terminal 5 from at least one surface.
- the ball terminal 5 is preferably pressed against the release film to be exposed.
- the sealing resin may be subjected to a grinding process or the like in order to expose the ball terminal 5.
- a flat terminal 6 may be used instead of the ball terminal 5.
- the mounting board 11 of FIG. 22B is not provided with the ball terminal 5 of the mounting board 11 of FIG. 22A on the one surface but on the other surface, and is a flat terminal 6. Is the same as the mounting substrate 11 of FIG.
- the substrate to be resin-sealed is not limited to each mounting substrate 11 in FIGS. 22A and 22B, and is arbitrary.
- the substrate to be sealed with resin for example, at least one of the chip 1, the flip chip 4, and the ball terminal 5 (or the flat terminal 6) is formed on the substrate 2 as shown in FIGS. It may be mounted on one side or may be mounted on both sides of the substrate 2. Further, for example, the terminal may not be provided as long as electrical connection to the substrate (for example, connection of a power supply circuit, a signal circuit, and the like to the substrate) is possible.
- each shape and each size of the substrate 2, the chip 1, the flip chip 4, and the ball terminal 5 (or the flat terminal 6) are not particularly limited.
- Examples of the substrate that is resin-sealed by the first resin-sealing device, the second resin-sealing device, and the third resin-sealing device of the present invention include, for example, a high-frequency module substrate for a portable communication terminal. Is mentioned. In the substrate for portable communication terminals, it is possible to open an opening in the cradle part in order to seal the both surfaces of the substrate with resin, but a resin sealing molding method that does not require opening the opening is desired. Yes. In addition, when the substrate for the mobile communication terminal is small and the components are built in at a high density, it may be difficult to mold the resin by opening the opening.
- both surfaces of the substrate can be resin-sealed without opening the opening.
- the present invention is also applicable to such a small-sized substrate in which components are built in at a high density.
- a board substrate sealed with the resin sealing apparatus of this invention,
- a power control module board, an apparatus control board, etc. are mentioned.
- a frame member having a through hole may be used.
- the substrate is attracted and fixed to the lower surface of the frame member.
- the said resin is supplied in the said through-hole of the said frame member.
- the substrate fixed by the frame member is inserted between the upper die and the lower die with the mold opened, and the frame member is lowered or the lower die is raised, so that the substrate is mounted on a substrate pin or the like. Put.
- the frame member may be withdrawn as necessary. It is preferable to use the frame member because the resin can be stably disposed on the substrate.
- the resin is not particularly limited, and may be a thermosetting resin such as an epoxy resin or a silicone resin, or may be a thermoplastic resin. Further, it may be a composite material partially including a thermosetting resin or a thermoplastic resin. Examples of the form of the resin to be supplied include a granular resin, a fluid resin, a sheet-like resin, a tablet-like resin, and a powdery resin.
- the fluid resin is not particularly limited as long as it is a resin having fluidity, and examples thereof include a liquid resin and a molten resin.
- the liquid resin refers to, for example, a resin that is liquid at room temperature or has fluidity.
- the molten resin refers to, for example, a resin that is in a liquid or fluid state by melting.
- the resin may be in any other form as long as it can be supplied to a mold cavity or the like.
- the term “electronic component” may refer to a chip before resin-sealing or a state in which the chip is resin-sealed.
- the term “electronic component” Unless otherwise specified, it means an electronic component (an electronic component as a finished product) in which the chip is sealed with a resin.
- “chip” refers to a chip before resin sealing, and specifically includes chips such as ICs, semiconductor chips, and semiconductor elements for power control.
- the chip before resin sealing is referred to as “chip” for convenience in order to distinguish it from the electronic component after resin sealing.
- the “chip” in the present invention is not particularly limited as long as it is a chip before resin sealing, and may not be in a chip shape.
- flip chip refers to an IC chip having bump-like protruding electrodes called bumps on an electrode (bonding pad) on the surface of the IC chip, or such a chip form. This chip is mounted downward (face down) on a wiring portion such as a printed circuit board.
- the flip chip is used as, for example, a chip for wireless bonding or one of mounting methods.
- the first resin sealing method, the second resin sealing method, and the third resin sealing method of the present invention are all resin sealing methods for resin sealing both surfaces of a substrate. Then, using the first resin sealing device, the second resin sealing device, or the third resin sealing device of the present invention, a first surface of the substrate is resin-sealed by compression molding. 1 resin sealing process and the 2nd resin sealing process of resin-sealing the other surface of the said board
- the first resin sealing step when the other surface of the substrate is resin-sealed by compression molding, the one surface is supported by a resin for compression molding, so that the other surface side is supported. Even if resin pressure is applied to the substrate, the warpage of the substrate can be suppressed.
- an equal resin pressure can be applied to both surfaces of the substrate almost simultaneously. For this reason, in this invention, suppression of the curvature of a board
- the first resin sealing step is performed first. After that, even if the second resin sealing step is performed, it is possible to achieve both suppression of the warpage of the substrate and double-sided molding of the substrate.
- the resin sealing device is the first resin sealing device of the present invention, and the first resin sealing step and the second resin
- the sealing step one of the upper mold member and the lower mold member is in contact with the tip of the rigid member while the substrate is sandwiched between the upper mold member and the lower mold member.
- the movement of the one frame member in the direction in which the rigid member is provided is stopped. More specifically, it is as detailed in the description of the first resin sealing device of the present invention. That is, for example, when the stopper (the rigid member) provided on the upper mold comes into contact with the upper mold frame member during mold clamping, the upper mold frame member rises above a predetermined position (target package thickness position). Can be prevented.
- the stopper comes into contact with the upper mold member, there is also an effect of suppressing the inclination of the upper mold and the lower mold member (substrate) due to variations in the resin charge, as will be described later.
- the lower mold with an elastic member (second elastic member) having a larger spring constant than that of the upper elastic member (first elastic member), the mold can be more reliably secured during mold clamping.
- the upper mold member can be pressed against the stopper.
- an elastic member having a large spring constant is provided in the lower mold, so that the upper mold elastic member is more elastically deformed, so that the upper mold cavity is filled with the resin first. can do. Details will be described in Example 1 described later.
- the amount of resin supplied to the upper mold cavity is approximately the same as the volume of the cavity when the upper mold member is fixed by the stopper. By doing so, when the upper mold cavity is filled with the resin, it is possible to reduce the deformation of the substrate due to at least the excess or shortage of the resin amount. As a result, even when the resin is filled in the lower mold cavity and the substrate is subjected to resin pressure, the resin in the upper mold cavity supports the substrate, so that deformation of the substrate can be suppressed.
- the present invention is not limited to the example in which the upper mold includes the stopper (the rigid member) and the first elastic member, and the lower mold includes the second elastic member.
- the mold may include a stopper (the rigid member) and the first elastic member, and the upper mold may include the second elastic member.
- the first resin sealing step and the second resin sealing step may be performed simultaneously.
- the term “simultaneous” here does not necessarily mean exactly the same, and there may be some deviation.
- the substrate is sandwiched between the upper mold member and the lower mold member in the first resin sealing step and the second resin sealing step. In this state, when the upper mold member contacts the tip of the rigid member, the movement of the upper mold member in the direction in which the rigid member is provided may be stopped.
- the resin sealing device is the second resin sealing device of the present invention, and the resin sealing method further includes the substrate pin, and the substrate Including a substrate placing step of placing the substrate in a state of being separated from the upper surface of the lower mold.
- the upper surface of the substrate is resin-sealed by compression molding with the upper mold
- the lower surface of the substrate may be resin-sealed by compression molding with the lower mold
- the substrate is placed in a state of being separated from the upper surface of the lower mold by the substrate pins.
- a substrate placing step may be included.
- the substrate positioning unit may be placed in a through hole provided in the substrate, so that the substrate is placed by the substrate pin.
- the tip of the ejector pin is raised or protruded from the cavity surface when the mold is opened by the resin sealing device.
- the step of lowering and the step of raising or lowering the tip of the ejector pin so as not to protrude from the cavity surface at the time of mold clamping by the resin sealing device may be included.
- FIG. 1 shows a cross-sectional view of a first resin sealing device 10 of the present embodiment.
- the resin sealing device 10 shown in FIG. 1 includes an upper mold 200 and a lower mold 300 disposed opposite to the upper mold 200 as constituent elements.
- the release film 40 can be adsorbed (attached) and fixed to the mold surface (lower surface) of the upper mold 200 and the mold surface (upper surface) of the lower mold 300.
- the upper mold 200 includes, for example, an upper mold base member 201, an upper mold frame member 210, an upper mold cavity upper surface member 230, a rigid member 231 and a first elastic member ( Spring) 232, upper mold base plate 202, and upper mold outside air blocking member 203 having O-rings 204A and 204B.
- the upper mold cavity 220 is configured by the upper mold cavity upper surface member 230 and the upper mold frame member 210.
- the upper mold 200 is fixed to, for example, a fixed plate (not shown) of the first resin sealing device 10.
- the upper mold 200 or the first resin sealing device 10 is provided with a heating means (not shown) for heating the upper mold 200, for example.
- the resin in the upper mold cavity 220 is heated and cured (melted and cured).
- the heating means may be provided in one or both of the upper mold 200 and the lower mold 300, and the position thereof is not limited as long as at least one of the upper mold 200 and the lower mold 300 can be heated. .
- the upper mold base member 201 is installed in a state of hanging from the upper mold base plate 202, for example.
- the upper mold member 210 is suspended from the upper mold base member 201 via the first elastic member 232, and the upper mold cavity upper surface member 230 is suspended from the upper mold base member 201.
- the rigid member 231 is suspended from the upper mold base member 201.
- the rigid body member 231 has a distal end that is not in contact with the upper mold member 210 and is slightly separated when the mold is opened.
- an upper mold outside air blocking member 203 is provided at the outer periphery of the upper mold base member 201.
- the upper mold outside air blocking member 203 can be brought into the outside air blocking state by joining the lower mold outside air blocking member 303 via the O-ring 204B.
- an O-ring 204A for blocking outside air is provided on the upper end surface of the upper mold outside air blocking member 203 (a portion sandwiched between the upper mold base plate 202 and the upper mold outside air blocking member 203).
- an O-ring 204B for blocking outside air is also provided on the lower end surface of the upper mold outside air blocking member 203.
- the upper mold base plate 202 is provided with, for example, a hole (through hole) 205 of the upper mold 200 for forcibly sucking and reducing the pressure of the air in the space in the mold.
- the resin sealing device of the present embodiment is not limited to this.
- a configuration in which both of the above are integrated may be employed.
- the lower mold 300 includes, for example, a lower mold base member 301, a lower mold frame member 310, a lower mold cavity lower surface member 330, a second elastic member 332, a lower mold base plate 302, and a lower mold outside air blocking member 303.
- the outside mold air blocking member 303 has an O-ring 304.
- the lower mold cavity 320 is configured by the lower mold cavity lower surface member 330 and the lower mold frame member 310.
- the lower mold 300 or the first resin sealing device 10 is provided with a heating means (not shown) for heating the lower mold 300, for example. By heating the lower mold 300 with the heating means, the resin in the lower mold cavity 320 is heated and cured (melted and cured).
- the lower mold 300 can be moved in the vertical direction by a drive mechanism (not shown) provided in the first resin sealing device 10. That is, the lower mold 300 can be moved in the direction approaching the (fixed) upper mold 200 and clamped. Then, the lower mold 300 can move in a direction away from the upper mold 200 to open the mold.
- a drive mechanism not shown
- the lower mold base member 301 is installed in a state of being placed on the lower mold base plate 302, for example.
- the lower mold frame member 310 is placed on the lower mold base member 301 via, for example, a second elastic member (spring) 332, and the lower mold cavity lower surface member 330 is placed on the lower mold base member 301, for example. Is placed.
- a lower mold outside air blocking member 303 is provided at the outer peripheral position of the lower mold base member 301.
- an O-ring 304 for blocking outside air is provided on the lower end surface of the lower mold outside air blocking member 303 (a portion sandwiched between the lower mold base plate 302 and the lower mold outside air blocking member 303).
- the first resin sealing device 10 of the present embodiment may include a substrate pin, for example, as in Embodiment 2 (FIGS. 14 to 15) described later.
- the substrate pin may be provided on the outside of the lower mold cavity 320 so as to protrude upward, and the substrate 2 may be placed in a state where it is separated from the upper surface of the lower mold 300.
- the substrate pin may be a stepped pin, for example, and may include a protruding substrate positioning portion at the tip.
- the substrate pins may be fixed in a state where the substrate 2 is separated from the lower mold 300 by inserting the substrate positioning portion into a through hole (not shown) provided in the substrate 2.
- an ejector pin 550 may be further provided at the bottom of the lower mold cavity 320 of the lower mold 300.
- the ejector pin may be one, but may be a plurality.
- Each of the ejector pins rises so that the tip of the ejector pin protrudes from the bottom surface of the lower mold cavity 320 of the lower mold 300 when the mold is opened, and the tip of the ejector pin protrudes from the bottom surface of the lower mold cavity 320 of the lower mold 300 when the mold is clamped. You may descend so that it does not protrude.
- the resin sealing method of this embodiment will be described with reference to FIGS. Below, the resin sealing method using the resin sealing apparatus of a present Example is demonstrated. More specifically, the resin sealing device of FIGS. 2 to 9 is the same as the resin sealing device of FIG. Note that the ejector pin 550 of FIG. 9 may or may not be provided. 2 to 9, the “first resin sealing step” and the “second resin sealing step” in the first resin sealing method of the present invention are performed almost simultaneously.
- a mold temperature raising step, a release film supply step, a resin supply step, and a substrate supply step described below are performed prior to the first resin sealing step.
- Each step is an optional component in the resin sealing method.
- heating means can heat the mold (upper mold 200 and lower mold 300), and the mold (upper mold 200 and lower mold 300) can cure (melt and cure) the resin.
- the temperature is raised to a temperature (molding temperature raising step).
- the release film 40 is supplied to the upper mold 200 and the lower mold 300 (release film supply process).
- the granular resin 30a is supplied to the bottom surface of the lower mold cavity 320 (first resin supply step). In the release film supply step, only the release film 40 may be supplied to the lower mold 300, and the granule resin 30a may be supplied onto the release film 40 later.
- the release film 40 which mounted the granule resin 30a to the lower mold
- the granular resin 30a melts to become a fluid resin 30b.
- the substrate 2 is supplied to the lower mold member 310 of the lower mold 300 (substrate supply process).
- the substrate 2 may be fixed by suction (suction) from a clamper (not shown) provided in the lower mold 300 or a suction hole (not shown) provided in the lower mold 300.
- suction suction
- the chip 1 and the wire 3 attached to the lower surface of the substrate 2 may be immersed in the fluid resin 30b in the lower mold cavity.
- FIG. good the granular resin 20a is supplied to the upper surface of the substrate 2 (second resin supply step).
- the resin sealing method of the present embodiment it is not limited to supplying the granule resin 20a to the upper surface of the substrate 2 after supplying the substrate 2 to the lower mold 300.
- the substrate 2 supplied with the granular resin 20a may be supplied to the lower mold 300. Further, as shown in FIGS. 10 to 11 described later, the granular resin 30a may be supplied to the lower mold cavity 320 during the preheating of the granular resin 20a supplied to the upper surface of the substrate 2.
- the first resin sealing step step of compressing the upper surface of the substrate by compression molding with the upper die
- the second resin sealing step substrate with the lower die
- the step of resin-sealing the lower surface of the resin by compression molding is performed, for example, simultaneously (substantially simultaneously).
- both surfaces of the substrate 2 are resin-sealed by compression molding in the first resin sealing step and the second resin sealing step.
- an intermediate mold clamping process, an upper mold cavity resin filling process, a lower mold cavity resin filling process, and a mold opening process described below are performed.
- the lower mold 300 is raised by a drive mechanism (not shown) to perform intermediate mold clamping (intermediate mold clamping process).
- intermediate mold clamping intermediate mold clamping process
- the upper mold outside air blocking member 203 and the lower mold outside air blocking member 303 are joined via the O-ring 204B, and the inside of the mold is blocked from the outside air.
- suction in the arrow direction X shown in FIG. 4 is started from the hole 205 of the upper mold 200 to reduce the pressure in the mold.
- the lower mold cavity 320 is in a state of being covered, and it is difficult to depressurize the lower mold cavity 320. There is.
- an air vent (a groove having a depth that allows air and gas to be discharged and does not leak resin) is provided on the upper surface of the lower mold member 310 (the contact surface between the lower mold member 310 and the substrate 2). It may be provided. By doing so, the inside of the lower mold cavity 320 can be depressurized.
- the lower mold member 310 is raised together with the lower mold cavity lower surface member 330 to bring the heated upper mold and lower mold closer.
- the resin in the upper mold cavity 220 and the lower mold cavity 320 may be temporarily stopped or temporarily raised at a low speed at a position where the resin can be efficiently heated.
- FIG. 5 shows an example in which the upper mold member 210 is temporarily stopped at a position where the upper mold member 210 abuts on the substrate 2 via the release film 40 (mold closing), but the present invention is not particularly limited to this example.
- the chip 1 and the wire 3 attached to the lower surface of the substrate 2 are not immersed in the molten resin (fluid resin) 30b. Further, the distal end of the rigid member 231 is not in contact with the upper mold member 210.
- the lower mold 300 is raised by a drive mechanism (not shown), and as shown in FIG. 6, the tip of the rigid member 231 comes into contact with the upper mold member 210, The upward movement of the upper mold member 210 stops at the position. At this time, the lower mold member 310 that is in contact with the upper mold member 210 via the substrate 2 also stops moving upward. Further, the amount of resin supplied to the upper mold cavity 220 is made substantially the same as the volume of the upper mold cavity 220 at the position where the upper mold member 210 stops moving upward, so that the upper mold member 210 moves upward.
- the upper mold cavity 220 can be filled with a resin at a position where is stopped (the upper mold cavity 220 is filled with a resin).
- the chip 1 and the wire 3 are immersed in the molten resin (fluid resin) 30b in the lower mold cavity 320.
- the granule resin 30a is completely melted to form the molten resin (fluid resin) 30b, and then the lower mold 300 (lower mold cavity lower surface member 330) is raised to form the molten resin (fluid resin) 30b.
- An example in which the chip 1 and the wire 3 are immersed is shown.
- the present invention is not limited to this.
- the resin in the lower mold cavity may be melted while 300 (the lower mold cavity lower surface member 330) is raised.
- the lower mold 300 (lower mold cavity lower surface member) is pressurized (raised) to apply resin pressure to the upper mold cavity 220 and the lower mold cavity 320 ( Mold clamping).
- the resin in the upper mold cavity 220 supports the substrate, even if the lower mold cavity lower surface member 330 presses the substrate 2 through the resin in the lower mold cavity 320, the deformation (warp) of the substrate 2 is suppressed. can do.
- the upper mold cavity resin filling step and the lower mold cavity filling step may be performed in a vacuum (reduced pressure) state.
- the lower mold 300 is moved by a drive mechanism (not shown). Then, the mold is lowered to perform mold opening (mold opening process). Thereafter, the substrate whose both surfaces are sealed with the sealing resin is removed from the lower mold 300 (released).
- an ejector pin may be used when the mold is opened. That is, in the first resin sealing method of the present embodiment, as shown in FIG. 9, as shown in FIG. 9, when the mold is opened, the tip of the ejector pin 550 rises so as to protrude from the bottom surface of the lower mold cavity 320. Further, it may be included. In addition, the first resin sealing method of the present embodiment may further include a lowering step in which the tip of the ejector pin 550 is lowered so as not to protrude from the bottom surface of the lower mold cavity 320 during mold clamping.
- compression molding is performed after fixing (setting) the substrate to the lower mold, but instead, compression is performed after fixing (setting) the substrate to the upper mold as shown in FIGS. Molding may be performed. Further, as shown in FIGS. 14 to 15 described later, the substrate may be fixed (set) by using the substrate pin and placing the substrate on the substrate pin. 2 to 15 are all examples in which the “first resin sealing step” and the “second resin sealing step” are performed almost simultaneously.
- the mold temperature raising step and the release film supplying step are performed.
- the substrate 2 on which the granule resin 20 a is previously placed is fixed to the upper mold member 210 with a clamp (not shown) or the like.
- the upper mold cavity 220 is filled with the granular resin 20a (substrate supply process and first resin supply process).
- the granule resin 20a is preheated by the heated upper mold 200.
- the granule resin 30a is supplied onto the release film 40 supplied to the lower mold surface (second resin supply step).
- second resin supply step in the first resin supply process, the lower mold resin sealing granular resin is supplied first, and then in the second resin supply process, the upper mold resin sealing resin is supplied. Granule resin was fed.
- the present embodiment is not limited to this.
- the upper mold resin resin for sealing the resin in the first resin supply step, the upper mold resin resin for sealing the resin is supplied first, and then the first resin supply process.
- the lower mold resin sealing resin may be supplied.
- the intermediate mold clamping state is performed in the same manner as in FIG.
- the intermediate mold clamping may be performed in the same manner as in FIG. 4 except that the substrate 2 is fixed to the upper mold 200 (upper mold member 210) instead of the lower mold 300 (lower mold member 310).
- the resin sealing method compression molding
- the granular resins 20a and 30a are heated by the pre-heated upper mold 200 and lower mold 300, respectively, as in the methods of FIGS. 2 to 9, and become molten resins (flowable resins) 20b and 30b, respectively.
- the granule resin 30a it is sufficient that it is melted until it comes into contact with the chip 1 and the wire 3 and becomes a molten resin (flowable resin) 30b, as in the methods of FIGS.
- the first resin sealing method of this embodiment when one surface of the substrate 2 is first resin-sealed by compression molding with a molding module for compression molding, the other surface is resin-sealed.
- the both surfaces of the substrate 2 are simultaneously resin-sealed by compression molding, an equal resin pressure can be applied to both surfaces of the substrate 2 almost simultaneously. For this reason, in this invention, suppression of the curvature of a board
- the first resin sealing step and the second resin sealing step may be performed simultaneously (substantially simultaneously). After the first resin sealing step, the second resin sealing step may be performed.
- a resin sealing device 10b shown in FIG. 23A is a resin sealing device similar to the first resin sealing device 10 of the present embodiment, except that the rigid member 231 is not provided.
- FIG. As shown in (b), the upper mold member 210 and the lower mold member 310 are inclined, and the substrate 2 is inclined (warped) following this. And the problem that the board
- the first resin sealing device and the first resin sealing method of the present invention as described above, one of the upper mold member and the lower mold member contacts the tip of the rigid member.
- the inclination of the upper mold member 210 and the lower mold member 310 as shown in FIG. 23B can be prevented or suppressed.
- 1 to 11 show the case where the rigid body member 231 hangs down from the upper mold base member 201 and the distal end of the rigid body member 231 contacts the upper mold frame member 210.
- the resin sealing device is not limited to this.
- FIG. 12A is a cross-sectional view of the same resin sealing device as in FIGS.
- FIG.12 (b) is sectional drawing which shows the modification of the resin sealing apparatus of Fig.12 (a).
- the rigid member 231 is not suspended from the upper mold base member 201 and protrudes from the upper surface of the upper mold member 210.
- the tip of the rigid member 231 comes into contact with the upper mold base member 201 in a state where the substrate is sandwiched between the upper mold member 210 and the lower mold member 310, so that the upper mold member 210 The movement can be stopped. Except this, the resin sealing device 10 of FIG.
- FIG. 12B is the same as that of FIG. 13A and 13B is the same as that shown in FIGS. 12A and 12B except that the rigid member 231 is provided in the lower mold 300 in place of the upper mold 200. ). More specifically, in FIG. 13A, the rigid member 231 protrudes from the upper surface of the lower mold base member 301. In the same figure, when the resin is sealed, the tip of the rigid member 231 comes into contact with the lower mold member 310 with the substrate held between the upper mold member 210 and the lower mold member 310, so that the lower mold member The movement of 310 can be stopped. In FIG. 13B, the rigid member 231 is suspended from the lower mold member 310.
- the tip of the rigid member 231 comes into contact with the lower mold base member 301 with the substrate held between the upper mold member 210 and the lower mold member 310, so that the lower mold member The movement of 310 can be stopped.
- the lower elastic member 332 is referred to as a “first elastic member”
- the upper elastic member 232 is A “second elastic member” having a larger spring constant than the lower elastic member 332 is used.
- the height of the package on the side where the rigid member is provided (at the time of contact with the rigid member, depending on the height of the rigid member). Cavity depth) is determined. For this reason, in order to make the said package height (cavity depth) appropriate, it is preferable to set the height of a rigid body member appropriately.
- the rigid member may be detachable from the upper die or the lower die, a plurality of rigid members having different heights may be prepared, and the package height may be adjusted by exchanging them.
- the first resin sealing method of the present embodiment can collectively form both surfaces of the substrate 2 using a single molding module, the production efficiency is improved and the configuration is simplified. Reduction is possible.
- the substrate 2 in the substrate supply step, the substrate 2 is placed on the substrate pin in a state of being separated from the upper surface of the lower mold 300. You may change to a substrate mounting process. Further, the substrate positioning unit may be placed in a through hole (not shown) provided in the substrate 2 so that the substrate 2 is placed on the substrate pin.
- one of the two cavities of the molding die is filled with compression molding first, or both cavities are filled with a resin for compression molding, so that both sides of the substrate are almost filled. Apply resin pressure evenly.
- the amount of resin (resin for compression molding) supplied to the cavity can be adjusted.
- the amount of resin supplied to the upper mold cavity or the lower mold cavity is the volume of the cavity when the position of the upper mold member or the lower mold member is fixed by the rigid member (stopper). It is preferable that the volume is approximately the same.
- the amount of the resin can be adjusted by measuring the weight of the supplied resin.
- the amount of resin for compression molding is set to substantially the same volume as that of one of the cavities (the side on which the rigid member is provided) when the substrate is flat, and the resin for compression molding is supplied to the one of the cavities. It may be filled. If it does so, the generation
- the amount of resin supplied to the one of the cavities varies depending on the vertical position of the plunger. Therefore, the substrate may bulge or dent due to excessive or insufficient resin amount. Therefore, it is preferable that at least one of the cavities is filled first by compression molding.
- one of the cavities is filled first by compression molding, and if the resin for compression molding in the molten state has a high viscosity, it has a strong resistance to the substrate when filling the one cavity with the resin. Power may work. In that case, the substrate may swell due to the volume of the unfilled portion without the resin filling the entire one cavity. Even in such a case, by filling the other cavity with resin and applying resin pressure to the substrate from the other surface side of the substrate, the swollen substrate is flattened, and the entire cavity is filled with resin. Can be made.
- the second resin sealing device of the present embodiment includes an upper / lower mold module (one mold module) and a substrate pin, and the upper / lower mold module includes the first mold module for compression molding and a compression It also serves as the second molding module for molding.
- the upper and lower mold modules are provided with an upper mold and a lower mold.
- FIG. 14 shows a sectional view of the second resin sealing device 10a of the present embodiment and the substrate 2 to be resin-sealed thereby.
- the upper and lower mold forming module 1200 includes an upper mold 200a and a lower mold 300a disposed to face the upper mold 200a.
- the release film 40 can be adsorbed (attached) and fixed to the mold surface (lower surface) of the upper mold 200a and the mold surface (upper surface) of the lower mold 300a.
- an upper mold 200a, a lower mold 300a, and a substrate pin 333 are provided as components.
- the upper mold 200a is the same as the upper mold 200 of the first resin sealing device 10 shown in FIG. 1 except that it does not include the rigid member 231.
- the lower mold 300a further faces upward with the substrate pins 333 placed on the elastic members 340 provided inside the lower mold member 310, respectively, outside the lower mold 320 of the lower mold 300a. Except for being provided so as to protrude, it is the same as the lower mold 300 of the first resin sealing device 10 shown in FIG. In FIG. 1, the lower elastic member (second elastic member) 332 has a larger spring constant than the upper elastic member (first elastic member) 232.
- the present invention is not limited to this.
- each substrate pin 333 is provided outside the lower mold cavity 320 so as to protrude upward, and the substrate 2 is mounted in a state where it is separated from the upper surface of the lower mold 300. Can be placed.
- Each substrate pin 333 is, for example, a stepped pin as shown in FIG. 14B, and may include a protruding substrate positioning portion 331 at the tip thereof.
- the board pin 333 in FIG. 14B is the same as the board pin 333 in FIG. 14A except that the board positioning part 331 is included.
- each substrate pin 333 is formed by inserting a substrate positioning portion 331 into a through hole (not shown) provided in the substrate 2, thereby lowering the lower mold member. You may fix in the state isolate
- an ejector pin (not shown) may be further provided at the bottom of the lower mold cavity 320 of the lower mold 300a as in FIG.
- Each of the ejector pins rises so that the tip of the ejector pin protrudes from the bottom surface of the lower mold cavity 320 of the lower die 300a, and the tip does not protrude from the bottom surface of the lower die cavity 320 of the lower die 300a during clamping. You may descend.
- the ejector pin may be one, but may be a plurality.
- the second resin sealing method of this embodiment will be described. Below, the resin sealing method using the 2nd resin sealing apparatus 10a of a present Example is demonstrated. In the second resin sealing method, the first resin sealing step and the second resin sealing step are performed by an upper and lower mold module 1200.
- a mold temperature raising step prior to the first resin sealing step and the second resin sealing step, a mold temperature raising step, a release film supplying step, and a substrate described below A placement process and a resin supply process are performed. Each step is an optional component in the resin sealing method.
- the second resin sealing method of the present embodiment can be performed in substantially the same manner as in FIGS. 2 to 9 of the first embodiment as described below.
- the mold temperature raising step is performed in the same manner as the mold temperature raising step of Example 1.
- the release film supply step is performed in the same manner as the release film supply step of Example 1.
- the granular resin 30a is supplied onto the lower mold release film 40 as in FIG.
- the lower release film 40 and the granule resin 30a may be supplied simultaneously, or the granule resin 30a may be supplied after the release film 40 is supplied.
- the substrate placing step is replaced with the substrate supplying step of the first embodiment, except that the substrate 2 is placed on the substrate pins 333 in a state of being separated from the upper surface of the lower mold 300a.
- the second resin supply step is performed in the same manner as the second resin supply step of Example 1 to supply the upper mold resin resin granule 20a.
- the granule resin 20a may be supplied to the upper surface of the substrate 2, or after supplying the granule resin 20a to the upper surface of the substrate 2 in advance, the granule resin 20a is supplied.
- the processed substrate 2 may be supplied to the lower mold 300.
- the substrate 2 may be placed on the substrate pins 333 by inserting the substrate positioning portion 331 into a through hole (not shown) provided in the substrate 2.
- the first resin sealing step and the second resin sealing step (the intermediate mold clamping step, the upper die cavity resin filling step, the lower die) Cavity resin filling process and mold opening process).
- the second resin sealing method of this embodiment can be performed. In the above, the method almost the same as that in FIGS. 2 to 9 of the first embodiment is shown. However, instead of this, for example, as in FIGS.
- the substrate is fixed to the upper mold, and
- the procedure of supplying the granular resin 30a to the lower mold during the preheating of the mold may be used.
- the elastic member 340 contracts during mold clamping, so that the tip of the substrate pin 333 is lowered with respect to the upper surface of the lower mold frame member 310. Is possible.
- substrate 2 can contact
- both sides of the substrate can be clamped using the first elastic member (spring) 232 and the second elastic member (spring) 332 as in FIG. Thereby, an equal resin pressure can be applied to both surfaces of the substrate almost simultaneously, and both surfaces can be resin-sealed.
- one surface of the substrate 2 is first resin-sealed by compression molding using the compression molding upper and lower mold module 1200, and then the other surface is resin-sealed. In doing so, warping of the substrate can be suppressed by supporting one surface with a resin for compression molding and applying resin pressure from the other surface side. For this reason, in a present Example, suppression of the curvature of a board
- the substrate pins 333 are placed in a state where the substrate 2 is separated from the upper surface of the lower mold 300.
- the substrate 2 does not cover the lower mold cavity 320 when the inside of the mold is depressurized when the intermediate mold is clamped. It is possible to efficiently prevent (reduce) the remaining air and the like, and to further suppress the warpage of the substrate. If excess air or the like remains in the lower mold cavity 320, air or the like is contained in the lower mold cavity 320 in addition to the resin. By doing so, the lower mold cavity 320 is filled with the resin or the like earlier than the upper mold cavity 220, and pressure (resin pressure) is applied to the lower mold cavity 320 first.
- the substrate may be warped. According to the substrate pin 333, such a problem can be prevented.
- the above-described air vent may be used in addition to or instead of the substrate pins.
- an ejector pin may be used, and the ejector pin raising step and the lowering step may be included.
- a substrate pin similar to the second resin sealing device may be combined with the first resin sealing device (including a rigid member, a first elastic member, and a second elastic member).
- the lower mold member 310 of the resin sealing device 10 of FIG. 1 is similar to the resin sealing device 10a of FIG. 14 as shown in FIGS. 15A to 15C.
- Substrate pins 333 and elastic members 340 may be provided.
- a frame member may be used as shown in FIGS. 15 (a) to 15 (c).
- the mold temperature raising step, the release film supply step, and the supply of the granular resin 30a to the bottom surface of the lower mold cavity 320 are performed in the same manner as in FIG. Further, in the same manner as described above, the granular resin 30a is melted to become a molten resin (flowable resin) 30b. Then, as shown in FIG. 15A, the substrate 2 is sucked and fixed to the lower surface of the frame member 32 having the internal through holes 31, and the granular resin 20 a is supplied to the internal through holes 31 of the frame member 32.
- the frame member 32, the substrate 2, and the granular resin 20a are inserted between the upper and lower molds.
- the frame member 32 is lowered or the lower mold 300 is raised to place the substrate 2 on which the frame member 32 and the granular resin 20a are placed on the substrate pin 333.
- the frame member 32 is retracted. Thereafter, for example, the same steps as in FIGS. 4 to 9 may be performed.
- the resin such as the granular resin 20a can be stably supplied onto the substrate 2 by using the frame member 32.
- the frame member 32 shown in FIGS. 15A to 15C can also be used in the first resin sealing device 10 in FIG. 1 or the second resin sealing device 10a in FIG. Further, in the resin sealing device 10 of FIG. 15, resin sealing can be performed similarly to the first embodiment without using the frame member 32. Further, in FIGS. 15A to 15C, an example is shown in which the frame member 32 is used to supply the substrate 2, but the application of the frame member is not limited to this.
- a frame member may be used to supply the release film 40 and the granular resin 30a to the lower mold cavity 320. Specifically, for example, the release film 40 is adsorbed on the lower surface of the frame member 32 in FIGS. 15A to 15C instead of the substrate 2.
- the granular resin 30 a is supplied onto the release film 40 in the internal through hole 31 of the frame member 32.
- the frame member 32, the release film 40, and the granular resin 30a are inserted between the upper and lower molds.
- the frame member 32 is withdrawn. Further, the steps shown in FIGS. 15A to 15C may be performed as described above using the frame member 32 again.
- the resin sealing device of the present example includes a first molding module for compression molding and a second molding module for compression molding.
- the first molding module includes an outside air blocking member and substrate support means, and the outside air blocking member can block the mold of the first molding module from outside air.
- FIG. 16 shows a cross-sectional view of the first molding module 500 of this embodiment and the substrate 2 sealed with resin by the first molding module 500.
- the first molding module 500 includes a substrate holding member (upper die) 600 and a lower die 700 disposed to face the substrate holding member (upper die) 600.
- the first molding module 500 shown in the figure includes an upper mold base plate and a lower mold base plate, and an upper mold outside air blocking member and a lower mold outside air blocking member.
- the upper mold base plate and the lower mold base plate, and the upper mold outside air blocking member and the lower mold outside air blocking member may be the same as those in the first or second embodiment, as will be described later.
- the upper mold outside air blocking member and the lower mold outside air blocking member correspond to the “outside air blocking member” in the third resin sealing device of the present invention.
- the substrate holding member (upper mold) 600 is formed of a communication member 610 that communicates with a high-pressure gas source 650 such as a compressor or a compressed air tank, a cavity upper surface and frame member 620, a plurality of elastic members 602, and a plate member 640. Yes.
- the high-pressure gas source 650 corresponds to the “substrate support means” in the third resin sealing device of the present invention.
- the cavity upper surface and the frame member 620 have a cavity 601.
- the communication member 610, the cavity upper surface, and the frame member 620 are installed in a state of being suspended from the plate member 640 via a plurality of elastic members 602.
- the communication member 610 is provided with an air passage (air passage) 603 for sending the air compressed by the high-pressure gas source 650 to the cavity 601.
- the cavity upper surface and the frame member 620 are configured such that the upper mold cavity upper surface member having the cavity 601 and the frame member surrounding the upper mold cavity upper surface member are integrated.
- a plurality of air holes 604 are provided on the upper surface of the cavity 601 for communicating the air passage 603 of the communication member 610 with the cavity 601.
- the plate member 640 is mounted in a state where it is suspended from an upper mold base plate 202 (not shown) similar to FIG. 1 or FIG.
- the upper mold base plate 202 is provided with an upper mold outside air blocking member 203 (not shown) having O-rings 204A and 204B, for example, as in FIG. 1 or FIG. 14, and air in the space in the mold.
- a hole (through hole) 205 (not shown) of the upper mold 200 is provided for forcibly suctioning and reducing the pressure.
- the lower mold 700 is a compression mold, and is formed of, for example, a lower mold cavity lower surface member 710, a lower mold frame member 720, an elastic member 702, and a lower mold base member 730.
- the lower mold cavity lower surface member 710 and the lower mold frame member 720 constitute a lower mold cavity 701.
- the lower mold cavity lower surface member 710 is mounted in a state of being placed on the lower mold base member 730, for example.
- the lower mold cavity lower surface member 710 may be installed in a state of being mounted on the lower mold base member 730 via an elastic member 702, for example.
- the lower mold member 720 is disposed so as to surround the lower mold cavity lower surface member 710 in a state of being placed on the lower mold base member 730 via a plurality of elastic members 702.
- a sliding hole 711 is formed by a gap between the lower mold cavity lower surface member 710 and the lower mold frame member 720.
- a release film or the like can be adsorbed by suction through the sliding hole 711.
- the lower mold 700 is provided with heating means (not shown) for heating the lower mold 700, for example. By heating the lower mold 700 with the heating means, the resin in the lower mold cavity 701 is heated and cured (melted and cured).
- the lower mold 700 can be moved in the vertical direction by a drive mechanism (not shown) provided in the first molding module 500, for example.
- the lower mold outside air blocking member of the lower mold 700 is not illustrated or described in detail for the sake of simplicity.
- the lower mold outside air blocking member may be the same as the lower mold outside air blocking member of FIG. 1 or FIG. 14, for example. That is, the lower mold 700 is placed on, for example, a lower mold base plate (not shown) similar to the lower mold base plate 302 of FIG. 1 or FIG.
- a lower mold outside air blocking member and an O-ring may be provided.
- FIG. 17 shows a cross-sectional view of the second molding module 800 of the resin sealing device of this example.
- the second molding module 800 includes an upper mold 900 and a substrate holding member (lower mold) 1000 disposed to face the upper mold.
- the upper mold 900 is the same as the upper mold 200 of FIG. 1 in the first resin sealing device 10 of the first embodiment except that the upper mold 900 does not have the rigid member 231.
- the substrate holding member (lower mold) 1000 is, for example, a plate for placing the substrate 2 whose one surface is resin-sealed by the first molding module 500, and surrounds the cavity lower surface member 1010 and the cavity lower surface member 1010.
- a cavity frame member 1020, a plurality of elastic members 1030, a base member 1040, and an outside air blocking member 303 are formed.
- the outside air blocking member 302 has an O-ring 304.
- a cavity 1001 is configured by the cavity lower surface member 1010 and the cavity frame member 1020.
- the cavity lower surface member 1010 is installed in a state where it is placed on the base member 1040, for example.
- the cavity frame member 1020 is mounted in a state of being placed on the base member 1040 via a plurality of elastic members 1030.
- the substrate 2 is placed on the substrate holding member (lower mold) 1000 so that the sealing resin 150 in the resin sealing region is accommodated in the cavity 1001.
- the third resin sealing method of the present embodiment will be described with reference to FIGS.
- the third resin sealing method using the resin sealing device shown in FIGS. 16 and 17 of the present embodiment will be described.
- the third resin sealing method of the present embodiment is the same as that shown in FIG. It is not limited to using the resin sealing device shown in FIG. 16 and FIG.
- a substrate supply step and a resin supply step described below are performed prior to the first resin sealing step.
- Each step is an optional component in the resin sealing method.
- the substrate 2 is transported by the substrate transport mechanism 1100, the substrate 2 is supplied to the substrate holding member (upper mold) 600 of the first molding module 500, and the substrate 2 is further connected to the substrate clamper and It is fixed (adsorbed) by a suction hole (not shown) (substrate supply process). After the substrate supply process, the substrate transport mechanism 1100 is withdrawn.
- a resin transport mechanism (not shown) is inserted between the substrate holding member (upper mold) 600 and the lower mold 700. As shown in FIG. 19, the resin transport mechanism transports the granular resin 150 a supplied to the release film 130 to the lower mold 700. Then, the release film 130 is sucked from the sliding hole 711 in the gap between the lower mold cavity lower surface member 710 and the lower mold frame member 720 by suction in the arrow direction Y shown in FIG. The film 130 and the granular resin 150a are supplied (resin supply process). Thereafter, the resin transport mechanism is withdrawn.
- the first resin sealing step of this embodiment is performed.
- one surface of the substrate 2 is resin-sealed by compression molding using the first molding module 500 having the lower mold 700.
- the intermediate mold clamping is performed as in the first embodiment.
- the lower mold 700 is raised by a drive mechanism (not shown), whereby the upper mold outside air blocking member (not shown) and the lower mold outside air blocking member (not shown) are O-rings (not shown).
- the inside of the lower mold (molding mold) 700 is cut off from the outside air.
- the inside of the mold is decompressed by suction from the upper mold hole (not shown).
- the substrate 2 is set (fixed) on the upper mold 500 (the upper surface of the cavity and the frame member 620).
- the inside of the mold is depressurized while the substrate 2 does not cover the lower mold 700 (lower mold cavity 701).
- the lower mold cavity (mold cavity) 701 is depressurized.
- an air vent is provided in the same manner as in the first and second embodiments so that the lower mold cavity 701 can be depressurized. It may be used.
- the granular resin 150a is heated and melted by the lower mold 700 heated by the heating means (not shown) to become a molten resin (flowable resin) 150b.
- melts the granule resin 150a is not limited to this.
- the granule resin 150a only needs to be melted until it comes into contact with the chip 1 and the wire 3 to become a molten resin (flowable resin) 150b.
- the granule resin 150a may be melted to form a molten resin (flowable resin) 150b.
- the lower mold 700 is raised by a drive mechanism (not shown) and attached to the lower surface of the substrate 2 on a molten resin (fluid resin) 150b filled in the lower mold cavity 320.
- the chip 1 and the wire 3 are immersed.
- the lower mold 700 is further raised (pressurized) by a drive mechanism (not shown), and at the same time as the molding pressure (resin pressure) is applied to the substrate 2 or at a slightly delayed timing, , Air having the same pressure as the molding pressure is supplied to the substrate holding member (upper mold) 600 in the direction of the arrow in FIG. Thereby, one surface (lower surface) of the substrate 2 can be resin-sealed while the substrate warpage is suppressed.
- the cavity 601 may be filled with a gel-like solid instead of supplying a high-pressure gas such as compressed air to the cavity 601.
- a high-pressure gas such as compressed air
- the substrate 2 By holding the substrate 2 with the gel-like solid, warpage of the substrate 2 can be suppressed. That is, as the “substrate support means” in the third resin sealing device of the present invention, for example, instead of the high-pressure gas source 650 shown in FIGS. 18 to 21, the substrate 2 is pressed with the gel-like solid.
- a mechanism may be used.
- the lower mold 700 is lowered by a drive mechanism (not shown) to open the mold. Perform (mold opening process).
- opening the mold for example, as shown in FIG. 21, suction through the sliding hole 711 may be released.
- the substrate transport mechanism 1100 transports the substrate 2 on which one surface (lower surface) is molded to the substrate holding member (lower mold) 1000 of the second molding module 800 (second module transport step). .
- the substrate 2 is placed on the substrate holding member (lower mold) 1000 so that the sealing resin 150 in the resin sealing region is accommodated in the cavity 1001. Thereafter, the granular resin 20a is supplied to the upper surface of the substrate 2 by a resin transport mechanism (not shown) (resin supply step).
- the second resin sealing is performed in the same manner as in FIGS. 2 to 9 of the first embodiment except that only the upper surface of the substrate 2 is resin-sealed instead of resin-sealing both surfaces of the substrate 2. Perform the process. At this time, since the lower surface of the substrate 2 is resin-sealed and it is not necessary to melt the sealing resin 150 again, the substrate holding member (lower mold) 1000 may not be heated. As described above, the second resin sealing method of this embodiment can be performed.
- the other surface is subjected to compression molding when the other surface is resin-sealed.
- the substrate supporting means for example, as described above with high-pressure gas or gel.
- the third resin sealing method of the present embodiment uses the outside air blocking member, or in addition to this, by using an air vent or the like, so that the one surface side is resin sealed.
- the mold cavity (the lower mold cavity 701 of the lower mold 700 in FIGS. 19 to 21) can be depressurized. As a result, it is possible to efficiently prevent (reduce) excess air from remaining in the mold cavity and further suppress the warpage of the substrate.
- the third resin sealing device and the third resin sealing method of the present embodiment are not limited to the devices and methods described with reference to FIGS. 16 to 21, and various modifications may be added.
- an ejector pin may be used, and the ejector pin raising step and the lowering step may be included.
- a frame member may be used.
- a resin sealing method may be used.
- the order of performing the compression process may be reversed upside down. That is, in FIGS. 16 to 21, the lower surface of the substrate was first compression-molded while the substrate was fixed to the upper mold and the upper surface of the substrate was supported (pressurized) by the substrate supporting means (high pressure gas source). However, conversely, the upper surface of the substrate may be first compression molded in a state where the substrate is fixed to the lower mold and the lower surface of the substrate is supported (pressurized) by the substrate supporting means.
- Second resin sealing device 10b Resin sealing device 11 Mounting substrate 20a, 30a, 150a Granule resin 20b, 30b, 150b Molten resin (flowable resin) 20, 30, 150 Sealing resin 31 Internal through-hole 32 Frame member 40, 130 Release film 200, 200a, 900 Upper mold 201 Upper mold base member 202, 940 Upper mold base plate 203 Upper mold outside air blocking member 204A, 204B, 304 O Ring 205 Upper mold hole 210 Upper mold member 220, 901 Upper mold cavity 230 Upper mold cavity upper surface member 231 Rigid member 232 First elastic member (or second elastic member) 300, 300a, 700 Lower mold 301, 730 Lower mold base member 302 Lower mold base plate 303 Lower mold outside air blocking member 310, 720 Lower mold frame member 320, 701 Lower mold cavity 330, 710 Lower mold cavity lower surface member 331 Substrate positioning part 332 Second elastic member (or first elastic member) 500 First molding
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Abstract
Description
基板の両面を樹脂封止するための樹脂封止装置であって、
上型及び下型を備えた圧縮成形用の成形モジュールを含み、
前記上型により前記基板の上面を圧縮成形で樹脂封止し、前記下型により前記基板の下面を圧縮成形で樹脂封止することが可能であり、
前記上型及び前記下型の一方は、剛体部材及び第1の弾性部材を含み、前記上型及び前記下型の他方は、前記第1の弾性部材よりもバネ定数の大きい第2の弾性部材を含み、
前記上型は、さらに、上型ベース部材及び上型枠部材を含み、前記上型枠部材は、前記上型のキャビティを囲むように配置され、
前記下型は、さらに、下型ベース部材及び下型枠部材を含み、前記下型枠部材は、前記下型のキャビティを囲むように配置され、
前記上型枠部材は、前記第1の弾性部材及び前記第2の弾性部材の一方を介して、前記上型ベース部材から垂下し、
前記下型枠部材は、前記第1の弾性部材及び前記第2の弾性部材の他方を介して、前記下型ベース部材に載置されており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記一方の型の枠部材における、前記上型及び前記下型を開閉させる方向への移動が、前記剛体部材により停止されることを特徴とする。
基板の両面を樹脂封止するための樹脂封止装置であって、
圧縮成形用の第1の成形モジュールと、圧縮成形用の第2の成形モジュールと、基板ピンと、を含み、
前記第1の成形モジュールにより、前記基板の一方の面を圧縮成形で樹脂封止し、前記第2の成形モジュールにより、前記基板の他方の面を圧縮成形で樹脂封止することが可能であり、
前記基板ピンは、前記第1の成形モジュール及び前記第2の成形モジュールの少なくとも一方に備えられた下型のキャビティの外側に、上方に向かって突き出すように設けられており、
前記基板ピンが、前記基板を、前記下型上面から遊離した状態で載置可能であることを特徴とする。
基板の両面を樹脂封止するための樹脂封止装置であって、
圧縮成形用の第1の成形モジュールと、圧縮成形用の第2の成形モジュールと、を含み、
前記第1の成形モジュールは、外気遮断部材及び基板支持手段を含み、前記外気遮断部材により、前記第1の成形モジュールの成形型を外気から遮断することが可能であり、
前記第1の成形モジュールは、前記成形型が外気から遮断されて型キャビティ内が減圧され、かつ、樹脂封止されていない前記基板の前記他方の面が前記基板支持手段により支持された状態で、前記基板の一方の面を圧縮成形により樹脂封止することが可能であり、
前記第2の成形モジュールは、前記基板の前記一方の面が樹脂封止された状態で、前記基板の他方の面を圧縮成形により樹脂封止することが可能であることを特徴とする。
基板の両面を樹脂封止するための樹脂封止方法であって、
本発明の前記第1の樹脂封止装置を用いて、
前記上型により前記基板の上面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記下型により前記基板の下面を圧縮成形で樹脂封止する第2の樹脂封止工程と、を含み、
前記第1の樹脂封止工程及び前記第2の樹脂封止工程において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記剛体部材を含む前記一方の型の枠部材における、前記上型及び前記下型を開閉させる方向への移動が、前記剛体部材により停止されることを特徴とする。
基板の両面を樹脂封止するための樹脂封止方法であって、
本発明の前記第2の樹脂封止装置を用いて、
前記第1の成形モジュールにより、前記基板の一方の面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記第2の成形モジュールにより、前記基板の他方の面を圧縮成形で樹脂封止する第2の樹脂封止工程と、
前記基板ピンにより、前記基板を、前記下型上面から遊離した状態で載置する基板載置工程と、を含むことを特徴とする。
基板の両面を樹脂封止するための樹脂封止方法であって、
本発明の前記第3の樹脂封止装置を用いて、
前記第1の成形モジュールの前記成形型が外気から遮断されて型キャビティ内が減圧され、かつ、樹脂封止されていない前記基板の前記他方の面が前記基板支持手段により支持された状態で、前記第1の成形モジュールにより、前記基板の前記一方の面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記第1の樹脂封止工程後に、前記基板の前記一方の面が樹脂封止された状態で、前記第2の成形モジュールにより、前記基板の前記他方の面を圧縮成形で樹脂封止する第2の樹脂封止工程と、を含むことを特徴とする。
2 基板
3 ワイヤ
4 フリップチップ
5 ボール端子(端子)
6 平らな端子
10 第1の樹脂封止装置
10a 第2の樹脂封止装置
10b 樹脂封止装置
11 実装基板
20a、30a、150a 顆粒樹脂
20b、30b、150b 溶融樹脂(流動性樹脂)
20、30、150 封止樹脂
31 内部貫通孔
32 枠部材
40、130 リリースフィルム
200、200a、900 上型
201 上型ベース部材
202、940 上型ベースプレート
203 上型外気遮断部材
204A、204B、304 Oリング
205 上型の孔
210 上型枠部材
220、901 上型キャビティ
230 上型キャビティ上面部材
231 剛体部材
232 第1の弾性部材(又は第2の弾性部材)
300、300a、700 下型
301、730 下型ベース部材
302 下型ベースプレート
303 下型外気遮断部材
310、720 下型枠部材
320、701 下型キャビティ
330、710 下型キャビティ下面部材
331 基板位置決め部
332 第2の弾性部材(又は第1の弾性部材)
500 第1の成形モジュール
550 エジェクターピン
600 基板保持部材(上型)
601、1001 キャビティ
602 弾性部材
603 空気通路
604 空気孔
610 連通部材
620 キャビティ上面及び枠部材
640 プレート部材
650 高圧ガス源
702 弾性部材
711 摺動孔
800 第2の成形モジュール
1000 基板保持部材(下型)
1010 キャビティ下面部材
1020 キャビティ枠部材
1030 弾性部材
1040 ベース部材
1100 基板搬送機構
1200 上下型成形モジュール
X、Y 矢印
Claims (18)
- 基板の両面を樹脂封止するための樹脂封止装置であって、
上型及び下型を備えた圧縮成形用の成形モジュールを含み、
前記上型により前記基板の上面を圧縮成形で樹脂封止し、前記下型により前記基板の下面を圧縮成形で樹脂封止することが可能であり、
前記上型及び前記下型の一方は、剛体部材及び第1の弾性部材を含み、前記上型及び前記下型の他方は、前記第1の弾性部材よりもバネ定数の大きい第2の弾性部材を含み、
前記上型は、さらに、上型ベース部材及び上型枠部材を含み、前記上型枠部材は、前記上型のキャビティを囲むように配置され、
前記下型は、さらに、下型ベース部材及び下型枠部材を含み、前記下型枠部材は、前記下型のキャビティを囲むように配置され、
前記上型枠部材は、前記第1の弾性部材及び前記第2の弾性部材の一方を介して、前記上型ベース部材から垂下し、
前記下型枠部材は、前記第1の弾性部材及び前記第2の弾性部材の他方を介して、前記下型ベース部材に載置されており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記一方の型の枠部材における、前記上型及び前記下型を開閉させる方向への移動が、前記剛体部材により停止されることを特徴とする樹脂封止装置。 - 前記剛体部材は、前記上型ベース部材から垂下しているか、又は、前記下型ベース部材上面から突出しており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記上型枠部材及び前記下型枠部材の一方が、前記剛体部材の先端と当接することにより、前記上型及び前記下型を開閉させる方向への前記一方の枠部材の移動が停止されることを特徴とする請求項1記載の樹脂封止装置。 - 前記剛体部材は、前記上型枠部材上面から突出しているか、又は、前記下型枠部材から垂下しており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記上型ベース部材及び前記下型ベース部材の一方が、前記剛体部材の先端と当接することにより、前記上型枠部材及び前記下型枠部材の一方が、前記上型及び前記下型を開閉させる方向への移動を停止されることを特徴とする請求項1記載の樹脂封止装置。 - 前記上型は、前記剛体部材及び前記第1の弾性部材を含み、前記下型は、前記第2の弾性部材を含み、
前記上型枠部材は、前記第1の弾性部材を介して、前記上型ベース部材から垂下しており、
前記下型枠部材は、前記第2の弾性部材を介して、前記下型ベース部材に載置されており、
前記剛体部材は、前記上型ベース部材から垂下しており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、
前記上型枠部材が、前記剛体部材の先端と当接することにより、前記剛体部材が設けられた方向への前記上型枠部材の移動が停止される請求項1記載の樹脂封止装置。 - 前記下型は、前記剛体部材及び前記第1の弾性部材を含み、前記上型は、前記第2の弾性部材を含み、
前記下型枠部材は、前記第1の弾性部材を介して、前記下型ベース部材に載置されており、
前記上型枠部材は、前記第2の弾性部材を介して、前記上型ベース部材から垂下しており、
前記剛体部材は、前記下型ベース部材上面から突出しており、
樹脂封止時において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、
前記下型枠部材が、前記剛体部材の先端と当接することにより、前記剛体部材が設けられた方向への前記下型枠部材の移動が停止される請求項1記載の樹脂封止装置。 - さらに、基板ピンを含み、
前記基板ピンは、前記成形モジュールの下型のキャビティの外側に、上方に向かって突き出すように設けられており、
前記基板ピンが、前記基板を、前記下型上面から遊離した状態で載置可能である、請求項1から5のいずれか一項に記載の樹脂封止装置。 - 前記基板ピンは、その先端に突起状の基板位置決め部を含み、
前記基板位置決め部が、前記基板に設けられた貫通穴に挿入されることにより、前記基板ピンが、前記基板を載置可能である、請求項6記載の樹脂封止装置。 - さらに、エジェクターピンを含み、
前記エジェクターピンは、前記成形モジュールに備えられた上型及び下型の少なくとも一方のキャビティ面から出し入れ可能に設けられており、
前記エジェクターピンは、
型開き時に、その先端が、前記キャビティ面から突出するように上昇又は降下可能であり、
型締め時に、その先端が、前記キャビティ面から突出しないように上昇又は降下可能である、請求項1から7のいずれか一項に記載の樹脂封止装置。 - 基板の両面を樹脂封止するための樹脂封止装置であって、
圧縮成形用の第1の成形モジュールと、圧縮成形用の第2の成形モジュールと、基板ピンと、を含み、
前記第1の成形モジュールにより、前記基板の一方の面を圧縮成形で樹脂封止し、前記第2の成形モジュールにより、前記基板の他方の面を圧縮成形で樹脂封止することが可能であり、
前記基板ピンは、前記第1の成形モジュール及び前記第2の成形モジュールの少なくとも一方に備えられた下型のキャビティの外側に、上方に向かって突き出すように設けられており、
前記基板ピンが、前記基板を、前記下型上面から遊離した状態で載置可能であることを特徴とする樹脂封止装置。 - 上型及び下型を有する上下型成形モジュールを含み、
前記上下型成形モジュールが、前記第1の成形モジュールと、前記第2の成形モジュールとを兼ねており、
前記上型により、前記基板の上面を圧縮成形で樹脂封止し、前記下型により、前記基板の下面を圧縮成形で樹脂封止可能である、請求項9記載の樹脂封止装置。 - 前記基板ピンは、その先端に突起状の基板位置決め部を含み、
前記基板位置決め部が、前記基板に設けられた貫通穴に挿入されることにより、前記基板ピンが、前記基板を載置可能である、請求項9又は10記載の樹脂封止装置。 - 前記基板は、その両面にチップが実装された実装基板である、請求項1から11のいずれか一項に記載の樹脂封止装置。
- 基板の両面を樹脂封止するための樹脂封止装置であって、
圧縮成形用の第1の成形モジュールと、圧縮成形用の第2の成形モジュールと、を含み、
前記第1の成形モジュールは、外気遮断部材及び基板支持手段を含み、前記外気遮断部材により、前記第1の成形モジュールの成形型を外気から遮断することが可能であり、
前記第1の成形モジュールは、前記成形型が外気から遮断されて型キャビティ内が減圧され、かつ、樹脂封止されていない前記基板の前記他方の面が前記基板支持手段により支持された状態で、前記基板の一方の面を圧縮成形により樹脂封止することが可能であり、
前記第2の成形モジュールは、前記基板の前記一方の面が樹脂封止された状態で、前記基板の他方の面を圧縮成形により樹脂封止することが可能であることを特徴とする樹脂封止装置。 - 前記第1の成形モジュールが下型を有し、前記下型により、前記基板の下面を圧縮成形で樹脂封止することが可能であり、
前記第2の成形モジュールが上型を有し、前記上型により、前記基板の上面を圧縮成形で樹脂封止することが可能である、請求項13記載の樹脂封止装置。 - 前記基板支持手段が、高圧ガス又はゲル状の固体により前記基板の前記他方の面を支持する手段である請求項13又は14記載の樹脂封止装置。
- 基板の両面を樹脂封止するための樹脂封止方法であって、
請求項1から8のいずれか一項に記載の樹脂封止装置を用いて、
前記上型により前記基板の上面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記下型により前記基板の下面を圧縮成形で樹脂封止する第2の樹脂封止工程と、を含み、
前記第1の樹脂封止工程及び前記第2の樹脂封止工程において、
前記上型枠部材及び前記下型枠部材により、前記基板を挟持した状態で、前記剛体部材を含む前記一方の型の枠部材における、前記上型及び前記下型を開閉させる方向への移動が、前記剛体部材により停止されることを特徴とする樹脂封止方法。 - 基板の両面を樹脂封止するための樹脂封止方法であって、
請求項9から12のいずれか一項に記載の樹脂封止装置を用いて、
前記第1の成形モジュールにより、前記基板の一方の面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記第2の成形モジュールにより、前記基板の他方の面を圧縮成形で樹脂封止する第2の樹脂封止工程と、
前記基板ピンにより、前記基板を、前記下型上面から遊離した状態で載置する基板載置工程と、を含むことを特徴とする樹脂封止方法。 - 基板の両面を樹脂封止するための樹脂封止方法であって、
請求項13から15のいずれか一項に記載の樹脂封止装置を用いて、
前記第1の成形モジュールの前記成形型が外気から遮断されて型キャビティ内が減圧され、かつ、樹脂封止されていない前記基板の前記他方の面が前記基板支持手段により支持された状態で、前記第1の成形モジュールにより、前記基板の前記一方の面を圧縮成形で樹脂封止する第1の樹脂封止工程と、
前記第1の樹脂封止工程後に、前記基板の前記一方の面が樹脂封止された状態で、前記第2の成形モジュールにより、前記基板の前記他方の面を圧縮成形で樹脂封止する第2の樹脂封止工程と、を含むことを特徴とする樹脂封止方法。
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JPH091596A (ja) * | 1995-06-20 | 1997-01-07 | Hitachi Ltd | モールド装置 |
JP2008201055A (ja) * | 2007-02-22 | 2008-09-04 | Matsushita Electric Ind Co Ltd | 樹脂成形用金型 |
JP2010016137A (ja) * | 2008-07-03 | 2010-01-21 | Panasonic Corp | 半導体装置及び半導体装置の封止成形方法 |
JP2015013371A (ja) * | 2013-07-03 | 2015-01-22 | アピックヤマダ株式会社 | 樹脂封止方法および圧縮成形装置 |
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JP6654861B2 (ja) | 2020-02-26 |
KR102157944B1 (ko) | 2020-09-18 |
TW201717337A (zh) | 2017-05-16 |
TWI623068B (zh) | 2018-05-01 |
JP2017092220A (ja) | 2017-05-25 |
CN108028236A (zh) | 2018-05-11 |
CN108028236B (zh) | 2021-03-30 |
KR20180081792A (ko) | 2018-07-17 |
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