KR20110097403A - Apparatus and method for compression moding - Google Patents

Abstract

The present invention relates to a compression molding apparatus and method for an electronic component such as a substrate on which a chip is mounted. More specifically, the molding pressure and the clamping pressure for each substrate can be independently controlled in the process of simultaneously compression molding a plurality of substrates. The present invention relates to a compression molding apparatus and method.

Description

Apparatus and method for compression moding

The present invention relates to a compression molding apparatus and method capable of independently controlling the molding pressure and the clamping pressure for each substrate in the process of simultaneously compression molding a plurality of substrates.

The present invention relates to a compression molding apparatus and method for an electronic component such as a substrate on which a chip is mounted. More specifically, the molding pressure and the clamping pressure for each substrate can be independently controlled in the process of simultaneously compression molding a plurality of substrates. The present invention relates to a compression molding apparatus and method.

In an electronic component such as a substrate on which a chip is mounted, the mounting area of the substrate is compression molded from a resin. Specifically, this compression molding method will be described. A substrate having a mounting area in which a chip is mounted is mounted on an upper mold, and a lower mold is moved to an upper mold to clamp the substrate at a predetermined pressure between the upper mold and the lower mold. do.

The upper mold is closed, the upper mold is closed, the mounting area of the substrate is accommodated in the cavity of the lower mold, immersed in a resin prepared in the cavity, and then applying a predetermined pressure to the cavity to complete the molding, the upper The mold and the lower mold are opened to take out the completed substrate.

In recent years, there is an increasing demand for an apparatus and method for simultaneously compression molding a plurality of substrates.

It is an object of the present invention to provide a compression molding apparatus and method capable of independently controlling the molding pressure and the clamping pressure for each substrate in the process of simultaneously compression molding a plurality of substrates.

In addition, another object of the present invention is to apply substantially the same clamping pressure to the individual substrates even when the substrates are of different thicknesses, and even when the amount of molding material filled in the cavity is not uniform, It is to provide a compression molding apparatus and method capable of molding at different molding pressures.

In addition, another object of the present invention is to set the molding pressure on each substrate separately from the clamping pressure to prevent the leakage of the molding material and breakage of the substrate due to the under or excessive clamping pressure, and to improve the reliability and precision It is to provide a compression molding apparatus and method that can be increased.

The present invention is to achieve the above object, according to an aspect of the present invention, the first mold for mounting a plurality of substrates and the cavity of the mounting area of any one substrate mounted to the first mold is accommodated And a plurality of forming units having a forming block for providing a bottom and a compression movement of the forming block, and having a clamping block for providing a side portion of the cavity, and a base frame connected through each forming unit and a plurality of elastic members. A compression molding apparatus is provided that includes a second mold.

In addition, the compression molding apparatus includes a drive unit for moving the base frame toward the first mold to accommodate the mounting area of each substrate in the cavity; And a plurality of press units for moving the forming blocks of each forming unit toward the first mold to compress the cavity.

Here, in the compression molding apparatus, when the substrate is clamped to the clamping block of each molding unit, the distance between each molding unit and the base frame is adjusted by the elastic member according to the thickness of the substrate.

In addition, the driving unit and the pressurizing unit may have independent driving units.

Further, each pressurizing unit includes a pressurizing member for moving the forming block of each forming unit toward the first mold; And a first driving part for moving the pressing member, and the first driving parts of the plurality of pressing units may be independently controlled from each other.

In addition, the contact surface of the pressing member and the forming block may have the same area.

In addition, the first driving unit may be a hydraulic or pneumatic cylinder.

Further, the first driving unit of each molding unit can apply the same pressure even when the molding conditions of each molding unit are different, such as when the thickness of the substrate clamped to each molding unit is different or the amount of molding material in each cavity is different. Can be controlled.

The driving unit may further include a second driving unit for generating power; A power transmission member connected to the second driving part; And one end may be connected to the power transmission member, and the other end may include a screw that is spirally coupled to the base frame.

In addition, a through hole is formed in the clamping block, and a forming block is disposed to contact a portion of the inner circumferential surface of the through hole, and a guide groove for guiding movement of the forming block is formed in the inner circumferential surface of the through hole, The outer surface of the block may be formed with a guide protrusion disposed in the guide groove.

According to another aspect of the present invention, the forming block and the vertical movement of the forming block to provide a top mold for mounting a plurality of substrates and a bottom portion of the cavity for receiving the mounting area of any substrate mounted on the upper mold A compression molding apparatus is provided that includes a lower mold that guides and includes a plurality of molding units having a clamping block that provides a side portion of the cavity.

In addition, the compression molding apparatus includes a drive unit for elevating the lower mold to rise up to a predetermined interval toward the upper mold; And a plurality of pressurizing units for lifting and lowering the forming blocks of the respective molding units toward the upper mold independently of each other while the lower mold is raised by the drive unit.

In addition, the driving unit and the pressurizing unit may have independent driving units.

In addition, each pressing unit, the pressing member disposed below the forming block; And a first driving part for elevating the pressing member, wherein each pressing unit can provide the same molding pressure with respect to each of the corresponding substrates.

In addition, the drive unit, the motor rotatable in the forward or reverse direction; A belt pulley connected to the motor; And one end may be connected to the valve pulley, the other end may include a screw spirally coupled to the lower mold.

In addition, the lower mold, the base frame spaced apart below the molding unit; And a plurality of elastic members connecting the base frame and the clamping blocks of the respective molding units.

In addition, the pressing member may be formed with a suction hole penetrating the upper surface and the other surface in the central portion.

According to another aspect of the present invention, (a) the first mold and the second substrate is mounted to the upper mold and the lower spaced apart below the upper mold, the mounting area of each substrate mounted to the upper mold is accommodated Providing a lower mold having a cavity, the lower mold including first and second forming units for applying a predetermined pressure to the cavity; And (b) disposing a release film in each cavity and applying a resin on the release film.

In addition, the compression molding method includes the steps of: (c) lifting the lower mold such that the mounting area of the substrate is accommodated in each cavity of the first and second molding units, and each substrate is clamped between the lower mold and the upper mold; And (d) after each substrate is clamped, independently driving the first and second pressing units for pressing the first and second forming units, respectively, to mold the mounting area of each substrate with resin.

In addition, each forming unit includes a forming block for providing a bottom of the cavity and a clamping block for guiding the up and down movement of the forming block, and providing a side portion of the cavity, wherein the lower mold has a plurality of elastic members. Further comprising a base frame connected to each other via, and in step (c), when the substrate is clamped to each of the clamping block of each molding unit, the distance between each molding unit and the base frame according to the thickness of the elastic member Can be adjusted by

In addition, the first and second pressurizing units generate power by a hydraulic or pneumatic cylinder, and may be independently controlled to apply different pressures or the same pressure to each cavity.

Further, in steps (c) and (d), the lifting and lowering of the lower mold and the lifting and lowering of each forming unit can be adjusted by different driving units.

In addition, the first and second pressurizing units can be driven independently and controlled to apply the same pressure to each cavity even when the amount of resin in each cavity is different from each other.

As described above, according to the compression molding apparatus and method according to the present invention, the molding pressure and the clamping pressure for each substrate may be independently controlled in the process of simultaneously compression molding a plurality of substrates.

It is also possible to apply substantially the same clamping pressure to the individual substrates even when the substrates are of different thicknesses, and to apply substantially the same or different molding pressures even when the amount of molding material filled in the cavity is not uniform. have..

In addition, by forming the molding pressure on each substrate separately from the clamping pressure, it is possible to prevent the leakage of the molding material and the breakage of the substrate due to the under or excessive clamping pressure, it is possible to increase the reliability and precision.

1 to 5 is a cross-sectional view of the main portion showing a compression molding apparatus according to an embodiment of the present invention.
6 and 7 are flow chart showing a compression molding method according to an embodiment of the present invention.

Hereinafter, a compression molding apparatus and method according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The accompanying drawings show exemplary forms of the present invention, which are provided to explain the present invention in more detail, and the technical scope of the present invention is not limited thereto.

In addition, irrespective of the reference numerals, the same or corresponding components will be given the same reference numerals, and redundant description thereof will be omitted. For convenience of description, the size and shape of each component may be exaggerated or reduced. have.

On the other hand, terms including ordinal numbers such as first or second may be used to describe various components, but the components are not limited by the terms, and the terms are defined by one component from another component. It is used only for the purpose of distinguishing.

1 to 4 are main cross-sectional views showing a compression molding apparatus according to an embodiment of the present invention.

Specifically, FIG. 1 is a cross-sectional view showing a compression molding apparatus in which the first mold and the second mold are spaced apart (opened), and FIG. 2 is a cross-sectional view showing a state in which the substrate is clamped by the movement of the second mold.

3 is sectional drawing which shows the state which compression molding is performed by the movement of a shaping | molding block, and FIG. 4 is sectional drawing which shows the state in which a shaping | molding block returns to an initial position by vacuum suction after completion of compression shaping | molding.

1 to 4, the compression molding apparatus 1 according to an embodiment of the present invention includes a first mold 10, a second mold 20, a driving unit 70, and a plurality of pressurizing units 50. , 60).

The first mold 10 and the second mold 20 may be classified according to the relative distance and position to the installation surface on which the compression molding apparatus 1 is installed, and the first mold 10 may be an upper mold. The second mold 20 may be a lower mold, the first mold 10 may be a left mold, and the second mold 20 may be a right mold.

In addition, when the first mold 10 and the second mold 20 are upper and lower molds, either one of the first mold 10 and the second mold 20 moves in the vertical direction toward the other mold. When the first mold 10 and the second mold 20 are left and right molds, either one of the first mold and the second mold may be moved in the horizontal direction toward the other mold.

Hereinafter, for convenience of description, the first mold 10 is the upper mold, the second mold 20 is the lower mold, and in the state in which the first mold 10 is fixed, the second mold 20 is the first mold. It will be described taking the case of moving in the vertical direction with respect to the installation surface toward one mold 10 as an example.

A plurality of substrates 11 and 13 are mounted on the upper mold 10, respectively, and the substrates may be divided into a first substrate 11 and a second substrate 13.

In addition, each of the substrates 11 and 13 may have predetermined thicknesses t1 and t2, and may have mounting regions 12 and 14 on which chips and the like are mounted. Hereinafter, for convenience of description, a case where the thickness t1 of the first substrate 11 is larger than the thickness t2 of the second substrate 13 will be described as an example.

In addition, each of the substrates 11 and 13 may be mounted on the lower surface of the upper mold 10 so that the mounting regions 12 and 14 on which the chip and the like are mounted face the lower mold 20, respectively. The lower surface of 10) may be mounted in the manner of vacuum adsorption, respectively.

The lower mold 20 has a first molding having a cavity for accommodating respective mounting areas 12 and 13 of the first and second substrates 11 and 13 mounted on the upper mold 10, respectively. Unit 30 and second molding unit 40.

In addition, the first forming unit 30 guides the compression movement of the forming block 31 and the forming block 31 which provides a bottom portion of the cavity for accommodating the mounting area 12 of the first substrate 11. And a clamping block 32 providing a side portion of the cavity.

Here, the release film F1 for compression molding of the first substrate 11 and the resin R1 coated on the release film F1 may be disposed in the cavity of the first molding unit 30.

In addition, the second forming unit 40 guides the compression movement of the forming block 41 and the forming block 41 which provides a bottom portion of the cavity for accommodating the mounting area 14 of the second substrate 13. And a clamping block 42 providing a side portion of the cavity.

Here, the release film F2 for compression molding of the second substrate 13 and the resin R2 coated on the release film F2 may be disposed in the cavity of the second molding unit 40.

The compression movement method of the forming blocks 31 and 41 relative to the clamping blocks 32 and 42 in each forming unit 30 and 40 is the same, and the clamping block in the first forming unit 30 with reference to FIG. 4. The compression movement system in the vertical direction of the forming block 31 with respect to (32) will be described.

The clamping block 32 may have a through hole (not shown) penetrating the upper surface and the lower surface, and the forming block 31 may be disposed on the inner circumferential surface of the through hole.

In this case, the forming block 31 may be disposed such that a portion of the outer circumferential surface is in contact with the inner circumferential surface of the clamping block 32, and the remaining partial region is spaced apart from the inner circumferential surface of the clamping block 32 by a predetermined interval. Can be.

The forming block 31 is guided in a vertical direction through a partial region in contact with the inner circumferential surface of the clamping block 32, and between the inner circumferential surface of the clamping block 32 that is not in contact with the outer circumferential surface of the forming block 31. The space of serves as an exhaust path for vacuum adsorption of the release film (F1) on the upper surface of the forming block 31, a detailed description thereof will be described later.

In addition, the guide groove 34 is formed on the inner circumferential surface of the clamping block 32 to guide the compression movement while controlling the compression movement displacement in the vertical direction of the forming block 31. A guide protrusion 33 disposed in the guide groove 34 may be formed on the outer surface of the 31.

The guide groove 34 and the guide protrusion 31 may be provided in plural numbers spaced apart at predetermined intervals, respectively, and the guide protrusion 31 is accommodated in the guide groove 32 during the compression movement of the forming block 31. May be directed to.

In addition, the lower mold 20 includes a base frame 21 connected to each of the molding units 30 and 40 and the plurality of elastic members 23 and 24, and the elastic members 23 and 24 are leaf springs. Or a coil spring.

In addition, a plurality of grooves (not shown) may be formed in the base frame 21 to support a portion of the elastic members 23 and 24 so as not to be separated during the compression process.

1 and 2, the lower mold 20 is raised to the upper mold 10, and the substrates 11 and 13 are in contact with the clamping blocks 32 and 42. In this case, each of the elastic members 23 and 24 performs a function of preventing the substrates 11 and 13 from being damaged or cracked due to the pressure of the lower mold 20 rising and lowering.

Specifically, for compression molding, each substrate 11, 13 is clamped by each forming unit 30, 40 of the upper mold 10 and the lower mold 20, and each substrate 11, 13 is a substrate. Appropriate clamping pressure is required in consideration of the thickness and the area of the mounting area.

Therefore, in the case where a pressure greater than the pressure required for clamping each of the substrates 11 and 13 by lifting up and down of the lower mold 20 acts on each of the substrates 11 and 13, each of the elastic members 23 and 24 is applied. Can absorb the excess pressure independently of each other with respect to the first molding unit 30 and the second molding unit 40.

1 and 2, the first and second molding units 30 and 40 are connected to the base frame 21 independently of each other, and according to the thicknesses of the substrates mounted on the upper mold 10, respectively. The gaps d1 and d2 between the respective molding units 30 and 40 and the base frame can be adjusted by the elastic members 23 and 24, respectively.

That is, when the thickness t1 of the first substrate 11 is greater than the thickness t2 of the second substrate 13, the elastic member 23 connected to the first molding unit 30 may be the second molding unit ( It is compressed more than the elastic member 24 connected with 40, so that the distance d1 between the first molding unit 30 and the base frame 21 is between the second molding unit 40 and the base frame 21. It becomes smaller than the space | interval d2 of.

On the other hand, when simultaneously performing compression molding on a plurality of substrates, the clamping pressure is increased depending on the clamping area or required molding pressure of the first and second substrates 11 and 13 respectively mounted on the upper mold 10. Can vary.

However, when the first molding unit 30 and the second molding unit 40 are not connected to the base frame 21 independently of each other, different pressures due to the lifting and lowering of the lower mold 20 have a different thickness. It is applied to different substrates 11 and 13.

In this case, the clamping pressure may be excessively applied to the relatively thick first substrate 11 to cause cracking or breakage, and the clamping pressure may be less than the clamping pressure required for the relatively small second substrate 12. The molding material S2 may be leaked at an interval generated between the second substrate and the second molding unit 40.

As described above, the compression molding apparatus 1 according to an embodiment of the present invention may independently adjust the clamping pressure for each substrate in the process of simultaneously compression molding a plurality of substrates.

In addition, the compression molding apparatus 1 according to an exemplary embodiment of the present invention may independently apply the clamping pressure required for each substrate to the individual substrates even when the thicknesses of the substrates are different from each other by only lifting the lower mold. It is possible to independently apply the clamping pressure required for each substrate even when the amount of molding material filled in the cavity is not uniform.

In addition, the compression molding apparatus 1 according to an embodiment of the present invention sets the clamping pressure on each substrate separately from the molding pressure to prevent the leakage of the molding material and the breakage of the substrate due to the under or excessive clamping pressure. It can prevent and improve the reliability and precision in the compression molding process.

In addition, the drive unit 70 includes the base frame 21 to accommodate the mounting areas 12 and 14 of the substrates 11 and 13 mounted on the upper mold 10 in the cavities of the molding units 30 and 40. ) Is moved toward the upper mold 10.

The driving unit 70 may be configured in various ways to lift and lower the base frame 21 of the lower mold 20, but is not limited thereto, for example, a second driving unit (not shown) for generating power. And a power transmission member (not shown) connected to the second driving part and one end portion connected to the power transmission member, and a screw (not shown) coupled to the base frame 21 in a spiral direction. .

Specifically, the second driving unit may be a motor rotatable in a forward or reverse direction, the power transmission member may be a belt pulley connected to the motor, the screw is one end is connected to the belt pulley, the other end is Helix may be coupled to the base frame 21.

Therefore, the rotational force of the motor is transmitted to the screw through the belt pulley, and the base frame 21 can be raised or lowered according to the rotation of the screw.

On the other hand, the drive unit 70 may be composed of various cylinders, such as a hydraulic cylinder or a pneumatic cylinder connected to the base frame 21, a motor, a screw member or a link member.

The plurality of pressurizing units 50 and 60 may include a first pressurizing unit 50 and a second forming unit 40 for moving the forming block 31 of the first forming unit 30 toward the upper mold 10. May be divided into a second pressurizing unit 60 for moving the forming block 41 toward the upper mold 10.

The first pressure unit 50 is a pressing member 51 for moving the forming block 31 of the first molding unit 30 toward the upper mold 10 and the first for moving the pressing member 51. The driving unit 53 may be included.

In addition, the second pressurizing unit 60 is configured to move the pressing member 61 and the pressing member 61 for moving the forming block 41 of the second molding unit 40 toward the upper mold 10. The first driving unit 63 may be included.

The first driving parts 53 and 63 of the respective pressurizing units 50 and 60 may be configured by various cylinders or motors, such as a hydraulic cylinder or a pneumatic cylinder, and may be controlled independently of each other.

In addition, each of the pressing members 51 and 61 may be formed with suction holes 52 and 62 penetrating the upper and lower surfaces, respectively, in the center portion, and each suction hole 52 and 62 may be a vacuum pump to be described later. 80).

In addition, in order to precisely raise the respective forming blocks 31 and 41 of the first and second forming units 30 and 40, the pressing members 51 and 61 and the corresponding forming blocks 31 and 41 of the forming blocks 31 and 41 are lifted. It is preferable that the contact surfaces have the same area.

In addition, since the connection relationship between the first and second pressurizing units 50 and 60 and the first and second forming units 30 and 40 corresponding thereto is the same, the first pressurizing unit 50 and the first forming unit ( 30) will be described as an example.

As described above, the clamping block 32 is formed with a through hole for arranging the forming block 31, and the base frame 21 has an insertion hole (unsigned) at a position corresponding to the through hole. Can be.

Here, the forming block 31 is disposed in the upper region of the through hole, the pressing member 51 is disposed below the forming block 31, the lower region of the pressing member 51 is the base frame 21 It is arranged in the insertion hole of the. Therefore, the pressing member 51 may be moved up and down along the insertion hole of the base frame 21 and the through hole of the clamping block 32.

In addition, the sealing member S is disposed in the space between the upper end of the pressing member 51 and the inner circumferential surface of the clamping block 32, and thus, between the inner circumferential surface of the clamping block 32 and the outer circumferential surface of the forming block 31. Air can flow only along the space between the forming block 31 and the pressing member 51 and the suction hole 52 of the pressing member 51.

In the compression molding apparatus 1 according to an embodiment of the present invention, the driving force generated from the first driving units 53 and 63 of the first pressure unit 50 and the second pressure unit 60 is independently controlled. In addition, the rising amounts of the respective forming blocks 31 and 41 of the first molding unit 30 and the second molding unit 40 can be adjusted independently, and accordingly, the molding pressure on each of the substrates 11 and 13 can be independently controlled. I can regulate it. Of course, the molding pressure for each of the substrates 11 and 13 may be equally adjusted.

Even when the thicknesses of the substrates 11 and 13 are the same, the substrates 11 may be formed according to the amount of the molding materials R1 and R2 filled in the respective cavities and the areas of the mounting regions 12 and 14 of the substrates 11 and 13. , 13) has a problem in that the molding pressure required for compression molding varies, but according to the compression molding apparatus 1 according to an embodiment of the present invention as described above, it is possible to always apply a constant molding pressure.

In the present invention, each pressurizing unit (50, 60) is separately configured and configured to independently control the amount of rise of each forming block (31, 41) of the first molding unit 30 and the second molding unit 40, respectively By independent control, the molding pressure for each substrate can be adjusted independently or substantially the same in the process of simultaneously compression molding a plurality of substrates.

In addition, the compression molding apparatus according to an embodiment of the present invention can not only apply the clamping pressure required for each substrate to the individual substrates independently, but also can adjust the molding pressure for each substrate independently. Even if the amount of molding material filled in the cavity is not uniform or the mounting area of each substrate is different, the molding pressure required for each substrate can be applied independently, thereby increasing the precision and reliability of the compression molding process. Can be.

In addition, it is preferable that the drive unit 70 and each pressurizing unit 50, 60 have a drive unit that is independent of each other.

That is, the lower mold 20 may be raised by the driving unit of the driving unit 70 and the driving unit 70 for raising the base frame 21 to lift the lower mold 20 at a predetermined interval relative to the upper mold 10. The driving unit of each pressurizing unit 50, 60 for raising and lowering the forming blocks 31, 41 of each forming unit 30, 40 toward the upper mold 10 independently of each other in a state where 20 is raised It is preferable that each is independently controlled.

Hereinafter, a compression molding method using the compression molding apparatus 1 according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and a redundant description will be omitted.

6, the compression molding method according to an embodiment of the present invention is a substrate mounting step (S100) and release film adsorption step (S200), resin filling step (S300), clamping step (S400) and compression molding step ( S500) and the molding block separation step S600 and the substrate taking-out step S700 in which compression molding is completed may be included.

Unlike this, referring to FIG. 7, the compression molding method according to the exemplary embodiment of the present invention includes a substrate mounting step S101, a release film adsorption step S201, a resin filling step S301, a clamping step S401, and a compression step. It may include a molding step (S501), the substrate take-out step (S601) and the molding block separation step (S701) is completed compression molding.

In other words, the substrate take-out step and the forming block step may be reversed.

Specifically, the compression molding method is disposed spaced apart from the upper mold 10 and the upper mold 10 on which the first substrate 11 and the second substrate 13 are mounted, and on the upper mold 10. A lower portion having first and second forming units 30 and 40 having a cavity for receiving mounting regions 12 and 14 of each mounted substrate 11 and 13 and for applying a predetermined pressure to the cavity; Step (a) of preparing a mold (20).

As described above, each forming unit 30, 40 guides the up and down movement of the forming blocks 31 and 41, which provide the bottom of the cavity, and the clamping blocks 32, which provide the side portions of the cavity. 42, wherein the lower mold 20 includes a base frame 21 to which each of the molding units 30 and 40 is connected through a plurality of elastic members 23 and 24, respectively. 12 may be vacuum-adsorbed to the bottom surface of the upper mold (10).

In addition, the compression molding method, the release film (F1, F2) is placed in the cavity, the step (b) and the molding unit 30 to apply the resin (R1, R2) on the release film (F1, F2) 40, the mounting regions 12 and 14 of the substrates 11 and 13 are accommodated in the respective cavities of the first and second cavities, and the substrate 11 and 13 are clamped between the upper mold 10 and the lower mold 20. Step (c) of elevating the mold 20.

In addition, in step (b), the resin may be a resin material in powder or granule form, and the powder or granular resin material may be heated and melted in the cavity on release films F1 and F2, respectively.

In addition, the release films F1 and F2 are in close contact with the wall surface of the cavity by the vacuum pump 80. By the vacuum pump 80, the space between the forming blocks 31, 41 and the clamping blocks 32, 42 and the space between the forming blocks 31, 41 and the pressing members 51, 61 are present. Since air is sucked into the vacuum pump through the suction holes 52 and 62 of the pressing members 51 and 61, the release films F1 and F2 are in close contact with each wall of the cavity, and this vacuum state is completed by compression molding. It lasts until

Further, in step (c), the lower mold 20 is lifted by the drive unit 70, and the substrates 11 and 13 are placed on the clamping blocks 32 and 42 of the respective molding units 30 and 40, respectively. In the case of clamping, the distance between each of the molding units 30 and 40 and the base frame 21 is adjusted by the elastic members 23 and 24 according to the thicknesses of the substrates 11 and 13.

Therefore, the clamping pressure can be applied to each of the substrates 11 and 13 independently.

In addition, in the compression molding method, after each substrate is clamped to the lower mold, each of the first and second pressing units 50 and 60 that pressurizes the first and second molding units 30 and 40, respectively, is independently driven. Molding the mounting regions 12, 14 of the substrates 11, 13 with molten resin in the cavity.

Thereafter, when the molding is completed, the pressurization on the forming blocks 31 and 41 of the respective forming units 30 and 40 is stopped, and the operation of the vacuum pump 80 is stopped.

When the space between the forming blocks 31 and 41 and the clamping blocks 32 and 42 and the space between the forming blocks 31 and 41 and the pressing members 51 and 61 are released from the vacuum state, the forming blocks 31, The pressure members 51 and 61 in close contact with 41 are released under vacuum and move downward.

When the vacuum pump 80 is operated again after the pressing members 51 and 61 are lowered from the forming blocks 31 and 41 by a predetermined interval, the suction holes 52 and 62 of the pressing members 51 and 61 are operated. The molding blocks 31 and 41 are returned to their initial positions by the negative pressure sucked into the vacuum pump 80 through), and after the upper mold 10 and the lower mold 20 are separated, the compression molding is completed. The substrates 11 and 13 can be taken out.

Up to now, the method for returning the forming blocks 31 and 41 to the initial position by the vacuum adsorption using the vacuum pump 80 has been described, but the present invention is not limited thereto.

Referring to FIG. 5, the forming blocks 31 and 41 of each forming unit 30 and 40 and the pressing members 51 and 61 of the respective pressing units 50 and 60 corresponding thereto are physically fastened and raised together. It may also be configured to descend together.

In one embodiment, the locking projections 54 and 64 are formed on the pressing members 51 and 61, respectively, and the locking projections 54 and 64 are supported by the respective forming blocks 31 and 41, respectively. Engaging grooves (unsigned) may be formed respectively. On the other hand, the engaging projection is formed in each of the forming blocks (31, 41), it is a matter of course that the engaging groove may be formed in each of the pressing members (51, 61) corresponding thereto.

As described above, the first and second pressurizing units 50 and 60 may generate power by pneumatic cylinders or hydraulic cylinders, and are independently controlled to apply different pressures or the same pressure to each cavity. desirable.

In addition, the compression molding method according to an embodiment of the present invention can not only apply the clamping pressure required for each substrate to the individual substrates independently, but also can adjust the molding pressure for each substrate independently. Even if the amount of molding material filled in the cavity is not uniform or the mounting area of each substrate is different, the molding pressure required for each substrate can be applied independently, thereby increasing the precision and reliability of the compression molding process. Can be.

Preferred embodiments of the present invention described above are disclosed for purposes of illustration, and those skilled in the art having various ordinary knowledge of the present invention may make various modifications, changes, and additions within the spirit and scope of the present invention. And additions should be considered to be within the scope of the following claims.

1: compression molding apparatus 10: upper mold
11, 13: substrate 12, 14: mounting area
20: lower mold 21: base frame
23, 24: elastic member 30: first molding unit
40: second molding unit 31, 41: forming block
32, 42: clamping block 50: first pressure unit
60: second pressure unit 51, 61: pressure member
52, 62: suction hole 53, 63: first driving part
70: drive unit 80: vacuum pump

Claims (19)

A first mold for mounting a plurality of substrates;
A plurality of moldings having a forming block for providing a bottom of a cavity for accommodating a mounting area of one substrate mounted on the first mold and a clamping block for guiding compression movement of the forming block and providing a side portion of the cavity; A second mold comprising a unit and a base frame connected to each forming unit via a plurality of elastic members;
A drive unit for moving the base frame toward the first mold to accommodate the mounting area of each substrate in the cavity; And
A plurality of pressurizing units for moving the forming blocks of each forming unit toward the first mold to compress the cavity,
And the distance between each molding unit and the base frame is adjusted by an elastic member according to the thickness of the substrate when the substrate is clamped to the clamping block of each molding unit. The method of claim 1,
And the drive unit and the pressurization unit have independent drive parts. The method of claim 1, wherein each pressurizing unit,
A pressing member for moving the forming block of each forming unit toward the first mold; And
It includes a first driving unit for moving the pressing member,
Compression molding apparatus, characterized in that the first driving portion of the plurality of pressure units are controlled independently of each other. The method of claim 3, wherein
Compression molding apparatus, characterized in that the contact surface of the pressing member and the forming block has the same area. The method of claim 3, wherein
Compression molding apparatus, characterized in that the first drive unit is a hydraulic or pneumatic cylinder. The method of claim 3, wherein
The first driving unit of each molding unit controls to apply the same pressure even when the molding conditions of each molding unit are different, such as when the thickness of the substrate clamped to each molding unit is different or the amount of molding material in each cavity is different. Compression molding apparatus characterized in that the. The method of claim 1, wherein the drive unit,
A second driving unit for generating power;
A power transmission member connected to the second driving part; And
Compression molding apparatus characterized in that one end is connected to the power transmission member, the other end comprises a screw that is spirally coupled to the base frame. The method of claim 1,
A through hole is formed in the clamping block, and a forming block is disposed to contact a portion of the inner circumferential surface of the through hole, and a guide groove for guiding movement of the forming block is formed in the inner circumferential surface of the through hole. Compression molding apparatus characterized in that the outer surface is formed with a guide projection disposed in the guide groove. An upper mold for mounting a plurality of substrates;
A plurality of forming units having a forming block for providing a bottom portion of a cavity for accommodating a mounting area of a substrate mounted on the upper mold and a clamping block for guiding vertical movement of the forming block and providing a side portion of the cavity; A lower mold comprising a;
A drive unit for elevating the lower mold to ascend toward the upper mold to a predetermined interval; And
And a plurality of pressurizing units for raising and lowering the forming blocks of each forming unit toward the upper mold independently of each other in a state where the lower mold is raised by the drive unit. The method of claim 9,
And the drive unit and the pressurization unit have independent drive parts. The method of claim 10, wherein each pressurizing unit,
A pressing member disposed below the forming block; And
It includes a first driving unit for elevating the pressing member,
Wherein each pressurizing unit provides the same molding pressure for each corresponding substrate. The method of claim 9, wherein the drive unit,
A motor rotatable in a forward or reverse direction;
A belt pulley connected to the motor; And
Compression molding device characterized in that one end is connected to the valve pulley, the other end comprises a screw spirally coupled to the lower mold. The method of claim 9, wherein the lower mold,
A base frame spaced apart below the molding unit; And
And a plurality of elastic members connecting the base frame and the clamping blocks of the respective molding units. The method of claim 11,
Compression molding apparatus, characterized in that the pressing member is formed in the central portion through the suction hole penetrating the upper surface and the other surface. (a) an upper mold on which the first substrate and the second substrate are mounted and spaced below the upper mold, and having a cavity for accommodating a mounting area of each substrate mounted on the upper mold, Providing a lower mold comprising a first and a second molding unit for applying pressure;
(b) disposing a release film in each cavity and applying a resin on the release film;
(c) lifting the lower mold so that each mounting area of the substrate is accommodated in each cavity of the first and second forming units, and each substrate is clamped between the lower mold and the upper mold; And
(d) after each substrate is clamped, independently driving the first and second pressing units for pressing the first and second molding units, respectively, to mold the mounting area of each substrate with resin. . The method of claim 15,
Each forming unit includes a forming block for providing a bottom of the cavity and a clamping block for guiding a vertical movement of the forming block and providing a side portion of the cavity,
The lower mold further includes a base frame, each molding unit connected to each other via a plurality of elastic members,
In step (c), in the case where the substrate is clamped to the clamping block of each molding unit, the compression molding method characterized in that the distance between each molding unit and the base frame is adjusted by the elastic member according to the thickness of the substrate. The method of claim 15,
And the first and second pressurizing units generate power by hydraulic or pneumatic cylinders and are independently controlled to apply different pressures or the same pressure to each cavity. The method of claim 15,
In steps (c) and (d), the lifting and lowering of the lower mold and the lifting of each forming unit are controlled by different driving units. The method of claim 15,
The first and second pressurizing units are driven independently and controlled to apply the same pressure to each cavity even when the amount of resin in each cavity is different from each other.

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