KR101031341B1

KR101031341B1 - Apparatus for supplying epoxy molding compound

Info

Publication number: KR101031341B1
Application number: KR20080129585A
Authority: KR
Inventors: 김선오
Original assignee: 세크론 주식회사
Priority date: 2008-12-18
Filing date: 2008-12-18
Publication date: 2011-04-29
Also published as: KR20100070854A

Abstract

An epoxy molding compound supply device for loading an epoxy molding compound into a tray in a facility for molding semiconductor chips includes a container for receiving an epoxy molding compound in a powder state, and extending from the container in one direction and extending the epoxy molding compound. A trench member that serves as a delivery passage for supplying the epoxy molding compound to a tray for transporting, and connected with the container and moving the epoxy molding compound away from the container toward the end of the trench member, the epoxy molding compound being A vibration generator for vibrating the container and the trench member to be dropped from the end of the trench member toward the tray, and an outer portion disposed below the vibration generator to reduce direct transmission of external disturbances to the trench member. Block may include a.

Description

Apparatus for supplying epoxy molding compound

The present invention relates to an apparatus for supplying an epoxy molding compound (EMC). More particularly, the present invention relates to an apparatus for supplying a powdered epoxy molding compound into a mold by using a tray for packaging semiconductor chips mounted on a substrate in the manufacture of a semiconductor device.

In general, in the manufacture of a semiconductor device, a molding process may be performed to package semiconductor chips mounted on a substrate using an epoxy resin. The molding process may be performed by a molding apparatus including a mold that provides a space for molding the semiconductor chips.

The mold may include an upper mold and a lower mold, and a substrate in which the semiconductor chips are mounted and an epoxy molding compound in powder form may be supplied to the mold by a loader. have. At this time, the EMC powder may be carried by the tray.

The device for supplying the EMC feeds the EMC powder to the tray, which can be transported into the mold by the loader.

The EMC supply device includes a storage container for storing the EMC in a powder state, a storage container for storing the EMC powder supplied from the storage container, and an induction furnace for extending the EMC powder to the tray and extending from the storage container. It may include a trench member to perform a function and a vibration generator for vibrating the trench member to move the EMC powder through the trench member.

In the case of using the conventional EMC supply device as described above, disturbances from the outside, for example, shock or vibration, may be directly transmitted to the trench member through the vibration generator, and conversely, vibration by the vibration generator It can be delivered directly throughout this molding installation. As a result, the EMC powder falling from the trench member may not be uniformly supplied to the tray by the disturbance, and the vibration caused by the vibration generator may affect other elements in the molding facility. In addition, when the EMC powder falls irregularly due to the disturbance, a large amount of dust may be generated from the EMC powder, and thus the inside of the molding facility may be contaminated by the dust.

An object of the present invention for solving the problems as described above is to provide an EMC supply device that can prevent the external disturbance is directly transmitted to the trench member for supplying the EMC powder.

According to embodiments of the present invention for achieving the above object, the EMC supply device, the container for accommodating the EMC in the powder state, extending from the container in one direction and the tray for conveying the EMC A trench member that functions as a delivery passage for supplying the container, the trench member being connected to the vessel and moving the EMC from the vessel toward the end of the trench member and allowing the EMC to drop from the end of the trench member toward the tray. Vibration generator for vibrating the trench member and a disturbance blocker disposed below the vibration generator to reduce the direct transmission of external disturbance to the trench member.

According to embodiments of the present invention, the disturbance blocker is disposed between the upper plate supporting the vibration generator, the lower plate disposed below the upper plate, and the upper plate and the lower plate to absorb the disturbance. Attenuation member may be included.

According to embodiments of the present invention, the damping member may comprise a plurality of springs.

According to embodiments of the present invention, the EMC supply device is connected to the disturbance blocker on the side of the disturbance blocker and a weight sensor for measuring the weight of the EMC contained in the container and the vibration frequency and amplitude by the vibration generator It may further include.

According to embodiments of the present invention, the disturbance blocking unit may be connected to the weight sensor by a cantilever beam extending in the horizontal direction from the weight sensor and a bracket connecting the end plate and the lower plate of the cantilever beam.

According to embodiments of the present invention, the lower plate may be disposed lower than the upper surface of the weight sensor.

According to embodiments of the present invention, the EMC supply device may further include a reinforcing member bonded to the trench member to extend along the trench member and to increase the rigidity of the trench member.

According to the embodiments of the present invention as described above, the EMC supply device is the EMC powder by the disturbance because the disturbance can be sufficiently blocked by the disturbance blocker while supplying the EMC powder to the EMC tray for transporting the EMC powder This irregular drop can be prevented. In addition, a weight sensor for measuring the weight and vibration frequency and amplitude of the EMC powder is disposed on the side of the disturbance blocker to reduce the dropping distance of the EMC powder, thereby reducing the scattering of the EMC powder. . As a result, the EMC supply device can evenly load the EMC powder in the tray, and by sufficiently reducing the contamination of the molding equipment by the EMC powder, it is possible to greatly improve the molding quality for the semiconductor chips.

The invention is now described in more detail with reference to the accompanying drawings showing embodiments of the invention. However, the present invention should not be construed as limited to the embodiments described below, but may be embodied in various other forms. The following examples are provided to fully convey the scope of the invention to those skilled in the art, rather than to allow the invention to be fully completed.

When an element is described as being disposed or connected on another element or layer, the element may be placed or connected directly on the other element, and other elements or layers may be placed therebetween. It may be. Alternatively, where one element is described as being directly disposed or connected on another element, there may be no other element between them. Similar reference numerals will be used throughout for similar elements, and the term “and / or” includes any one or more combinations of related items.

Terms such as first, second, third, etc. may be used to describe various items such as various elements, compositions, regions, layers and / or parts, but the items are not limited by these terms. Will not. These terms are only used to distinguish one element from another. Accordingly, the first element, composition, region, layer or portion described below may be represented by the second element, composition, region, layer or portion without departing from the scope of the invention.

Spatially relative terms such as "bottom" or "bottom" and "top" or "top" may be used to describe the relationship of one element to other elements as described in the figures. Can be. Relative terms may include other orientations of the device in addition to the orientation shown in the figures. For example, if the device is reversed in one of the figures, the elements described as being on the lower side of the other elements will be tailored to being on the upper side of the other elements. Thus, the typical term "bottom" may include both "bottom" and "top" orientations for a particular orientation in the figures. Similarly, if the device is reversed in one of the figures, the elements described as "below" or "below" of the other elements will be fitted "above" of the other elements. Thus, a typical term "below" or "below" may encompass both orientations of "below" and "above."

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used below, what is shown in the singular also includes the plural unless specifically indicated otherwise. In addition, where the terms “comprises” and / or “comprising” are used, they are characterized by the presence of the forms, regions, integrals, steps, actions, elements and / or components mentioned. It is not intended to exclude the addition of one or more other forms, regions, integrals, steps, actions, elements, components, and / or groups.

Unless defined otherwise, all terms including technical and scientific terms have the same meaning as would be understood by one of ordinary skill in the art having ordinary skill in the art. Such terms, such as those defined in conventional dictionaries, will be construed as having meanings consistent with their meanings in the context of the related art and description of the invention, and ideally or excessively intuitional unless otherwise specified. It will not be interpreted.

Embodiments of the invention are described with reference to cross-sectional illustrations that are schematic illustrations of ideal embodiments of the invention. Accordingly, changes from the shapes of the illustrations, such as changes in manufacturing methods and / or tolerances, are those that can be expected. Accordingly, embodiments of the present invention are not to be described as limited to the particular shapes of the areas described as the illustrations but to include deviations in the shapes. For example, a region described as flat may generally have roughness and / or nonlinear shapes. Also, the sharp edges described as illustrations may be rounded. Accordingly, the regions described in the figures are entirely schematic and their shapes are not intended to describe the precise shape of the regions nor are they intended to limit the scope of the invention.

FIG. 1 is a schematic front view for explaining an EMC supply device according to an embodiment of the present invention, and FIG. 2 is a schematic side view for explaining the EMC supply device shown in FIG. 3 is a schematic view for explaining a method of loading an EMC powder in an EMC tray.

1 and 2, an EMC supply apparatus 100 according to an embodiment of the present invention molds semiconductor chips mounted on a substrate such as a printed circuit board (PCB) in manufacturing a semiconductor device. It can be used to supply the powdered EMC 2 into a mold (not shown).

The EMC powder 2 may be supplied into the mold by the tray 10. As shown in FIG. 3, the tray 10 may be supported by a separate tray transfer device 12, for example, a Cartesian robot at the bottom of the EMC supply device 100, and the EMC powder. (2) can be moved by the tray transfer device 12 in the horizontal direction to load. The tray 10 loaded with the EMC powder 2 may be transported into the mold by a conveying device such as a load elevator (not shown) and a loader (not shown).

In particular, the tray 10 may be transported to the load elevator by the tray transfer device 12, and may be transported into the mold by the loader after being lifted by the load elevator. After supplying the EMC powder 2 into the mold, the tray 10 may be taken out of the mold by the loader and lowered by an unload elevator (not shown). Although not shown, a cleaning device (not shown) for removing residual EMC powder 2 inside the tray may be disposed below the tray transport device 12, and the tray 10 may be disposed in the unload elevator. By the cleaning device. The tray 10 cleaned by the cleaning device may be lifted by the load elevator, and under the EMC supply device 100 for loading of the EMC powder 2 by the tray transport device 12. Can be placed in.

Although not shown in detail, the tray 10 may include sidewalls defining a space for loading the EMC powder 2 and lower shutters slidably disposed in a horizontal direction under the sidewalls. The lower shutters may be opened and closed in a slide manner to supply the EMC powder 2 into the mold.

As shown in FIG. 3, the EMC supply apparatus 100 may be used to supply the EMC powder 2 to the tray 10 from a storage container 20 for storing the EMC powder 2. . An opening for supplying the EMC powder 2 may be formed in the lower panel of the storage container 20, and may be formed by a screw 22 extending in a horizontal direction through the lower space of the storage container 20. EMC powder 2 may fall through the opening in the vertical direction. The screw 22 may extend to the outside through one sidewall of the storage container 20, and may be connected to a rotation driver 24 for rotating the screw 22. That is, the amount of the EMC powder 2 set by the rotation of the rotary driver 24 may be transferred to the EMC supply device 100.

The operation of the rotary driver 24 may be controlled by a controller (not shown) for controlling the EMC supply. That is, in order to accurately supply the required amount of EMC powder 2 to the semiconductor device to be molded, the controller may control the operation of the rotation driver 24 according to the volume information of the semiconductor device.

The EMC supply device 100 may be disposed below the storage container 20. For example, the EMC supply device 100 is disposed below the storage container 20 and contains a container 102 for receiving the EMC powder 2 falling from the storage container 20, and the container ( A trench member 104 extending from one side 102 in one direction, a vibration generator 110 for moving the EMC powder 2 by vibrating the trench member 104, and the like.

Specifically, the container 102 may be disposed below the opening of the storage container 20 to receive the EMC powder 2, and may be open at the top to receive the EMC powder 2. have. The container 102 may have an interior space that gradually decreases from the top to the bottom. In particular, as shown, both sidewalls of the container 102 may be adjacent to each other at the bottom, and the rear sidewall may also be inclined inwardly of the container 102 like the sidewalls. However, the front sidewall connected to the trench member 104 may extend in the vertical direction.

The trench member 104 may be referred to as a trough and may extend horizontally from the front sidewall of the container 102. However, if desired, the trench member 104 may have some downward inclination angle.

The trench member 104 may have a trench used as a passage for carrying the EMC powder 2. The trench may have a shape that gradually narrows downward, that is, a width gradually narrowing downward to reduce the width of the falling EMC powder 2 while the EMC powder 2 falls. For example, the trench member 104 may have a trench having a 'V' shape or a triangular shape, and the container 102 may have an opening connected to the trench.

According to other embodiments of the present invention, the trench member 104 may have a 'U' shape or a chamfered square shape.

In addition, by reducing the lower width of the trench member 104 as described above, it is possible to reduce the EMC powder (2) adhered to the inside and the end of the trench member 104.

4 and 5 are schematic diagrams for describing the EMC powder carried through the trench member and the gate member shown in FIGS. 1 and 2.

According to the exemplary embodiment of the present invention, as shown in FIGS. 4 and 5, the gate member 106 may be disposed in the trench member 104. The gate member 106 may be provided to adjust the transfer amount of the EMC powder 2 transferred by the vibration in the trench member 104. For example, the gate member 106 may have sides configured to be parallel to the inner surfaces of the trench member 104. In particular, when the trench member 104 has an internal structure having a 'V' shape, the gate member 106 may have an inverted triangle structure, and inner surfaces of the trench member 104 and the The EMC powder 2 may be transferred through an 'V' shaped opening formed between the gate members 106.

As described above, since the transfer amount of the EMC powder 2 can be kept constant by the gate member 106, the EMC powder 2 can be uniformly supplied to the tray 10, and unwanted shock or vibration It is possible to prevent the large amount of EMC powder 2 from being dropped at once by the frequency change. In addition, as described above, the space between the trench member 104 and the gate member 106 may be configured to have a predetermined width so that the EMC powder 2 may be uniformly supplied without being biased to either side.

Although not shown, the gate member 106 may be configured to adjust the height in the vertical direction. That is, the degree of opening between the trench member 104 and the gate member 106 may be adjusted by adjusting the height of the gate member 106, and thus the supply speed of the EMC powder 2 may be adjusted. Can be.

Referring again to FIGS. 1 and 2, the vibration generator 110 is disposed below the vessel 102 and the EMC powder 2 is removed from the trench 102 in the trench member 104 within the trench member 104. The container 102 and the trench member 104 may be vibrated to move toward an end of the 104. Although not shown in detail, the vibration generator 110 may include a piezoelectric element or a rotating body connected to a motor, and may vibrate the container 102 and the trench member 104 at a frequency of about 100 to 400 Hz. Can be.

The container 102 and the trench member 104 may be connected to the vibration generator 110 through separate support panels 112 and reinforcing members 114. The support panel 112 may have a flat plate shape and may be disposed on the vibration generator 110. The reinforcing member 114 may extend along the trench member 104 from the bottom of the container 102, and may have sides of the container 102 and the trench member 104 and the support panel 112. It may have a shape bent to correspond to the upper surface. For example, as shown, a pair of reinforcement members 114 may be attached on the lower sides of the container 102 and the trench member 104, and with the pair of reinforcement members 114. The support panel 112 may be coupled to each other by bolts 116. In addition, the pair of reinforcing members 114 may be bonded to the container 102 and the trench member 104 using an adhesive, soldering, welding, or the like.

The reinforcing member 114 may be used to prevent secondary vibration of the trench member 104 by the excitation of the vibration generator 110. That is, by increasing the rigidity of the trench member 104, the secondary vibration of the trench member 104 itself, which may be generated by the vibration transmitted from the vibration generator 110, may be attenuated or reduced. The trench member 104 may be vibrated at a frequency substantially the same as the frequency of the vibration generator 110.

The EMC powder supply device 100 may include a disturbance blocker 120 for preventing external disturbance, ie, disturbance, from being directly applied to the container 102 and the trench member 104. The disturbance blocking unit 120 may be disposed below the vibration generator 110, and the disturbance is directly applied to the container 102 and the trench member 104 through the vibration generator 110. Can be used to prevent. That is, external disturbances, for example, vibrations or shocks, are directly transmitted to the container 102 and the trench member 104, thereby sufficiently preventing the EMC powder 2 from falling off irregularly. In addition, the vibration generated by the vibration generator 110 may be prevented from being directly transmitted to the molding facility including the EMC powder supply device 100.

According to one embodiment of the invention, the disturbance blocker 120 is the upper plate 122 for supporting the vibration generator 110 and the lower plate 124 and the upper portion disposed below the upper plate 122 It may include a damping member 126 disposed between the plate 122 and the lower plate 124 to absorb the disturbance and the vibration. For example, the damping member 126 may include a plurality of coil springs. Although not shown, a pneumatic or hydraulic shock absorber may be additionally disposed in the plurality of coil springs, respectively.

According to another embodiment of the present invention, although not shown, a plurality of elastic blocks (not shown) may be disposed between the upper plate 122 and the lower plate 124 in place of the coil springs. The elastic blocks may be formed of rubber or sponge.

According to one embodiment of the present invention, the EMC supply device 100 may include a weight sensor 130 for measuring the weight of the EMC powder (2) supplied into the container (102). The load cell may be used as the weight sensor 130. That is, the weight of the EMC powder 2 introduced into the container 102 may be sensed by the weight sensor 130, and the injected EMC powder 2 may be in the trench by vibration by the vibration generator 110. The weight loss of the EMC powder 2 can be monitored in the course of being fed to the lower EMC tray 10 via the end of the member 104. That is, the controller may control the amount of the EMC powder 2 supplied to the EMC tray 10 by using data on the weight change of the EMC powder 2 transmitted from the weight sensor 130. In addition, the weight sensor 130 may measure the vibration frequency and amplitude by the vibration generator 110 and may transmit a signal relating to the vibration frequency and amplitude to the controller.

Meanwhile, as described above, the container 102, the vibration generator 110, and the disturbance blocker 120 may be arranged in a vertical direction, and the weight sensor 130 may be connected to the lower plate 124 of the disturbance blocker. In this case, when the weight sensor 130 is disposed below the lower plate 124, the height of the EMC supply apparatus 100 may be greatly increased. Accordingly, the trench member 104 and the tray 10 may be increased. The height between) can be increased. As a result, the amount of dust generation may be increased by increasing the distance that the EMC powder 2 falls from the end of the trench member 104.

According to one embodiment of the present invention, in order to reduce the falling distance of the EMC powder (2), the weight sensor 130 may be disposed on the side of the disturbance blocking unit 120, the weight sensor 130 And the lower plate 124 is a cantilever 132 extending in the horizontal direction from the weight sensor 130, and a connection bracket 134 extending in the vertical direction between the cantilever 132 and the lower plate 124. Can be connected to each other through. As a result, since the lower plate 124 of the disturbance blocking unit 120 is positioned lower than the upper surface of the weight sensor 130, the drop distance of the EMC powder 2 may be reduced, thereby reducing the EMC powder ( The amount of dust generated by falling of 2) can be reduced. The weight sensor 130 may be disposed on the base panel 136.

Referring to FIG. 3, an EMC supply device 100 according to an embodiment of the present invention is disposed between an end of the trench member 104 and the tray 10 to be discharged from the trench member 104. A chute 140 for guiding the powder 2 to the tray 10 may be further included. The chute 140 may extend in the vertical direction and have an internal passage for guiding the EMC powder 2. As a result, the EMC powder 2 can be prevented from scattering laterally while the EMC powder 2 is dropped.

The lower end of the chute 140 may be positioned above the tray 10, and the tray 10 may be moved to the tray transfer device 12 while the EMC powder 2 is supplied through the chute 140. It can be moved in the horizontal direction by. In particular, the tray 10 may be moved in a zigzag form by the tray transfer device 12, and thus the EMC powder 2 may be uniformly loaded in the tray 10.

6 and 7 are schematic diagrams for describing the EMC remover illustrated in FIG. 3, and FIG. 8 is a schematic cross-sectional view for describing the first and second suction chambers illustrated in FIG. 3.

3, 6 to 8, the upper part of the tray 10 supported by the tray conveying apparatus 12 by using a vacuum the EMC powder (2) scattered during the supply of the EMC powder (2) An EMC remover 150 may be arranged to remove and to remove residual EMC powder 2. The EMC removal unit 150 may include a first suction chamber 152 having upper and lower openings, and a second suction chamber 156 connected to the first suction chamber 152 and having an open upper and closed lower portions. It may include. For example, the first and second suction chambers 152 and 156 may be integrally formed and may have one common side wall.

Sidewalls constituting the first suction chamber 152 may include a plurality of first vacuum holes 154 for sucking the scattered EMC powder 2, and the second suction chamber 156 may be provided. Side walls and a bottom panel constituting the plurality of second vacuum holes 158 for removing the residual EMC powder 2 may be provided.

The first and second vacuum holes 154 and 158 may be connected to the vacuum module 160 through the vacuum lines 162 and 164. The vacuum lines 162 and 164 may be integrated into one vacuum line 166 and the integrated vacuum line 166 may be connected to the vacuum module 160. The sucked EMC powder 2 may be removed through filters 168 installed in the vacuum lines 162 and 164 or the integrated vacuum line 166.

According to one embodiment of the present invention, the chute 140 may be configured to be movable in the vertical direction by the vertical drive unit 170, the EMC removal unit 150 is a horizontal direction by the horizontal drive unit 174 It can be configured to be movable. Although not shown in detail with respect to the vertical drive unit 172 and the horizontal drive unit 174, the vertical drive unit 172 and the horizontal drive unit 174 is a cam and motor, ball screw and motor, hydraulic or pneumatic cylinder, linear motor, Or the like.

The lower end of the chute 140 may be disposed in the first suction chamber 152 while supplying the EMC powder 2. That is, the EMC powder 2 may be supplied to the tray 10 through the lower end of the chute 140, and dust generated in a space adjacent to the lower end of the chute 140, that is, the chute 140. A portion of the EMC powder 2 scattered laterally from a portion adjacent to the lower end of the first portion may be removed through the first vacuum holes 154 of the first suction chamber 152.

The second suction chamber 156 may be used to discard or remove the EMC powder 2 introduced into the container 102 from the container 102. In this case, the chute 140 may be lifted by the vertical driver 172, and then the first and second suction chambers 152 and 156 may have a second suction under the raised chute 140. The chamber 156 may be horizontally moved by the horizontal driver 174 to be positioned. Subsequently, the EMC powder 2 may be dropped into the second suction chamber 156, and the dropped EMC powder 2 may open the second vacuum holes 158 of the second suction chamber 156. Can be removed.

As described above, the EMC dust which may be generated during the supply of the EMC powder 2 or during the disposal of the EMC powder 2 can be sufficiently sucked using the first and second suction chambers 152, 156. Therefore, the contamination of the molding facility by the EMC dust can be sufficiently reduced.

The controller may be connected to the vibration generator 110 and the weight sensor 130. The controller may control an operation of the vibration generator 110 according to volume information of semiconductor chips to be molded.

The volume information may be calculated using information of semiconductor chips transmitted from a vision inspection unit (not shown). The vision inspection unit may acquire a 3D image of the semiconductor chips while the substrate on which the semiconductor chips are mounted is loaded into a molding facility, and obtain information such as thickness and size of the semiconductor chips from the image. The information obtained as described above may be transmitted to the controller, and the controller may process the information to obtain volume information of the semiconductor chips. In addition, the controller may calculate the amount of the EMC powder 2 required to mold the semiconductor chips using volume information of the semiconductor chips, and the calculated amount of the EMC powder 2 may be transferred to the tray 10. The operation of the vibration generator 110 can be controlled to load on.

In particular, the control unit of the vibration generator 110 by using the information about the weight change of the EMC powder (2) transmitted from the weight sensor 130 and the vibration frequency and amplitude provided by the vibration generator 110. Feedback control can be performed.

The EMC supply apparatus according to the embodiments of the present invention as described above can be used to mold the semiconductor chips mounted on the substrate. In particular, since the disturbance can be sufficiently blocked by the disturbance blocker while supplying the EMC powder to the EMC tray for transporting the EMC powder, the irregular powder drop can be prevented by the disturbance. In addition, a weight sensor for measuring the weight and vibration frequency and amplitude of the EMC powder is disposed on the side of the disturbance blocker to reduce the dropping distance of the EMC powder, thereby reducing the scattering of the EMC powder. .

In addition, the contamination inside the molding facility can be sufficiently reduced by vacuum suctioning the EMC powder scattered while supplying the EMC powder to the tray through the EMC removal unit.

As a result, the EMC supply device can load the EMC powder uniformly in the tray, and by sufficiently reducing the contamination of the molding equipment by the EMC powder, it is possible to greatly improve the molding quality for the semiconductor chips.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention as defined by the following claims It can be understood that

1 is a schematic front view illustrating an EMC supply apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic side view for explaining the EMC supply apparatus shown in FIG. 1.

3 is a schematic view for explaining a method of loading an EMC powder in an EMC tray.

6 and 7 are schematic diagrams for describing the EMC remover illustrated in FIG. 3.

FIG. 8 is a schematic cross-sectional view for describing the first and second suction chambers shown in FIG. 3.

Explanation of symbols on the main parts of the drawings

10 EMC tray 12 tray feeder

20: storage container 22: screw

24: rotation drive unit 100: EMC supply device

102 container 104 trench member

106: gate member 110: vibration generator

112 Support Panel 114: Reinforcement Member

120: disturbance blocker 122: upper plate

124: lower plate 126: damping member

130: weight sensor 132: cantilever

134: connection bracket 140: chute

150: EMC removal unit 152, 156: first and second suction chamber

154 and 158: first and second vacuum holes 160: vacuum module

168 filter 172 vertical drive unit

174: horizontal drive unit

Claims

A container for containing the epoxy molding compound in powder state;

A trench member extending in one direction from the vessel and serving as a delivery passage for feeding the epoxy molding compound to a tray for transporting the epoxy molding compound;

A vibration generator coupled with the vessel and moving the epoxy molding compound from the vessel toward the end of the trench member and vibrating the vessel and the trench member such that the epoxy molding compound is dropped from the end of the trench member towards the tray. ; And

Epoxy molding compound supply device, characterized in that it comprises a disturbance blocker disposed below the vibration generator to reduce the direct transmission of external disturbance to the trench member.

The method of claim 1, wherein the disturbance blocking unit,

An upper plate supporting the vibration generator;

A lower plate disposed below the upper plate; And

And an attenuating member disposed between the upper plate and the lower plate to absorb the disturbance.

3. The epoxy molding compound supply apparatus of claim 2, wherein the damping member comprises a plurality of springs.

3. The apparatus of claim 2, further comprising a weight sensor connected to a lower plate of the disturbance blocker on the side of the disturbance blocker and measuring a weight of the epoxy molding compound contained in the container and a vibration frequency and amplitude of the vibration generator. Epoxy molding compound supply apparatus, characterized in that.

5. The epoxy molding compound supply of claim 4, wherein the disturbance blocking unit is connected to the weight sensor by a cantilever beam extending in the horizontal direction from the weight sensor and a bracket connecting the end of the cantilever beam to the lower plate. 6. Device.

6. The epoxy molding compound supply apparatus according to claim 5, wherein the lower plate is disposed lower than an upper surface of the weight sensor.

2. The apparatus of claim 1, further comprising a reinforcing member bonded to the trench member to extend along the trench member and to increase the rigidity of the trench member.