JP2003205274A - Fixture for holding package - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixture for holding a package which is used for cleaning and drying the cut package, shortens a cleaning and drying time and reduces the remained foreign matter. <P>SOLUTION: This fixture for holding package is provided with side walls 7 which are grid-shapedly disposed on a nest 6, an outer frame 15 which is on the outermost side among the side walls 7, storage parts 8 which are quadrilateral spaces surrounded by side walls 7 themselves or by the side wall 7 and outer frame 15 and store the package 19, holding walls 16 which are one part of the side walls 7 and have retreated wall surfaces, shelf parts 17 which are disposed on the root of the holding walls 16 and restrain the package 19 and notched parts 18 which are disposed near the central part of the respective holding walls 16. Thereby, cleaning liquid in the case of the cleaning process of the package 19 and dry air in the case of a drying process respectively flow into the surrounding of the package 19 through the notched parts 18 and easily flow out. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package including individual chips including chips by cutting a resin-sealed substrate in which a plurality of chip-shaped electronic components (hereinafter referred to as chips) are resin-sealed. The present invention relates to a package holding jig that is used after being formed.

[0002]

2. Description of the Related Art A conventional jig for holding a package will be described with reference to FIG. FIG. 4 (A),
(B) and (C) show a process of cutting the resin-sealed substrate, a process of holding each package, and a process of using each of the conventional package holding jig and suction jig in combination. It is a fragmentary sectional view showing a process of washing and drying a package, respectively. As shown in FIG. 4A, the nest 50, which is a jig for holding a package, is surrounded by a grid-shaped side wall 51, an outer frame 52, side walls 51 themselves, and the side wall 51 and the outer frame 52. And the side wall 51
And a holding wall 54 which is a part of the outer frame 52 and whose wall surface is retracted, and a shelf 55 at the base of the holding wall 54. In addition, the platform 56, which is a suction jig,
It has a suction part 57 protruding corresponding to each package, a recess 58 provided in the upper part of the suction part 57, and a suction port 59 provided in the recess 58.

A conventional package holding jig, that is, the nest 50 is used as follows. First, FIG.
As shown in (A), nest 50 and platform 56
And the resin-sealed substrate 6 through the suction port 59.
After adsorbing 0, the resin-sealed substrate 60 is cut by the blade 61. Next, as shown in FIG. 4B, when the resin-sealed substrate 60 has been cut into all the packages 62, the nest 50 is lifted after releasing the suction. As a result, each package 62 is held by the shelf 55 in each accommodation portion 53 of the nest 50, and is held by the holding wall 54 so as not to largely move in the horizontal direction in the drawing. Then, in order to hold each package 62 so as not to move largely in the vertical direction of the drawing,
Lower the lid 63. Here, the package pressing portion 64 of the lid 63 is located above the corner of the package 62,
The nest pressing portion 65 of the lid 63 is the outer frame 52 of the nest 50.
The lid 63 is lowered so that the lid 63 is positioned above.
Further, the lid 63 is provided with an opening 66 above the central portion of the package 62.

Next, as shown in FIG. 4C, the nest pressing portion 65 and the outer frame 52 are brought into pressure contact with each other. As a result, the package 62 has the package pressing portion 64 at the corner.
From the above, a predetermined gap is maintained so that the vertical direction of the drawing does not significantly move. In this state, the nest 50 is put in a washing tank to wash the package 62 with a washing liquid, and then put in a dryer to dry the package 62 with dry air or the like. Then, as indicated by the thick arrow in the figure, the cleaning liquid in the cleaning process and the dry air in the drying process are narrow between the lid 63 and the package 62, between the holding wall 54 and the package 62, and between the shelf portion 55 and the package 62, respectively. Flow through space.

[0005]

However, according to the above-described conventional package holding jig, the following problem may occur at the corner portion 67 connecting the holding wall 54 and the shelf portion 55. is there. First, the corner 6
Between the package 7 and the package 62, it is difficult for the accumulated cleaning liquid to flow out and dry air does not easily flow in, so that the cleaning / drying time becomes long. Further, the corner portion 67
A foreign substance is likely to remain between the package 62 and the package 62 during cleaning, and such a foreign substance causes a defect in a post process.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a jig for holding a package which shortens the cleaning / drying time and reduces the residual of foreign matters. .

[0007]

For the purpose of solving the above technical problems, a package holding jig according to the present invention is a resin-sealing method in which a plurality of chip-shaped electronic components are resin-sealed. A grid-shaped accommodating portion that is used when each package is accommodated and surrounded by side walls, which is used when cleaning or drying the package that is formed of individual pieces including electronic components by cutting the finished substrate, A holding jig for a package, comprising: a holding wall that is formed of a part of a side wall and has a recessed wall and holds the package; and a shelf portion that is at the base of the holding wall and that holds the package. It is characterized in that a notch is formed in the wall.

According to this, when the package is washed while being held by the holding jig, the cleaning liquid quickly flows in and out around the package through the notch. Therefore, since the cleaning liquid flows sufficiently, the cleaning effect is improved and the cleaning time is shortened. Further, around the package, the gas used for drying quickly flows in and out via the notch. Therefore, the gas flows sufficiently and the drying time is shortened.

Further, a package holding jig according to the present invention is characterized in that, in the above-mentioned package holding jig, the notch is provided in a portion other than a portion where the holding walls are connected to each other.

According to this, since the notch is provided in a portion other than the portion where the holding walls that surround the accommodating portion are connected to each other, the strength of the holding wall is ensured.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION A jig for holding a package according to the present invention will be described below with reference to FIGS. Figure 1
FIG. 3 is a perspective view schematically showing a state where a jig for holding a package according to the present invention, that is, a nest is used.

As shown in FIG. 1, a resin-sealed substrate 1 to be cut is composed of a substrate body 2 made of a printed circuit board, a lead frame and the like, and a sealing resin 3. The substrate body 2 is virtually provided with a dicing line 4 which is a cutting position. A portion surrounded by each dicing line 4 is a package region 5 that should become each package after cutting.

The package holding jig, ie, the nest 6 according to the present invention is a lattice-shaped side wall 7 and a quadrilateral space surrounded by the side wall 7 in which a package (not shown) is housed. And an accommodating portion 8 for In FIG. 1, a part of the nest 6 is omitted because the drawing is complicated, and the omitted part will be described later.

The platform 9 is a suction jig used in combination with the nest 6, and is fixed to the table 10. Further, in the platform 9, the suction portion 11 is a convex portion that sucks and holds each package. The recess 12 is a suction space provided on the upper surface of the suction unit 11. Further, the suction port 13 is
Is an outlet of an adsorption pipe line that is connected to the vacuum pump 14.

The shape of the nest 6 shown in FIG. 1, including the parts omitted in FIG. 1, will be described with reference to FIG. Figure 2
(A) is a partial perspective view showing the shape of the nest of FIG. 1, (B)
Shows the state in which the nest holds the package (A) AA
It is a fragmentary sectional view shown along a line.

As shown in FIG. 2 (A), in the nest 6, the outermost outer frame 15 of the side walls 7 is a holding wall which is a part of the outer frame 15 and whose wall surface is retracted. 1
6 is provided. Similarly, the side wall 7 provided inside the outer frame 15 is provided with a holding wall 16 which is a part of the side wall 7 and whose wall surface is retracted. These retaining walls 16 are omitted in FIG. The base of the retaining wall 16,
That is, the shelf portion 17 is provided at a portion connected to the side wall 7. A notch 1 is provided near the center of each holding wall 16.
8 are provided. As shown in FIG. 2B, each package 19 is held by the shelf 17 and is held by each holding wall 16 so as not to largely move in the horizontal direction.

A process of using the jig for holding the package according to the present invention, that is, the nest 6, will be described with reference to FIG. 3A, 3B, and 3C show a process of cutting a resin-sealed substrate, a process of holding each package, and a process of cleaning / cleaning each package by using a platform and a nest in combination. It is a partial cross section which respectively shows the process of drying.

In FIG. 3, a blade 20 is a rotary blade for cutting the resin-sealed substrate 1. The lid 21 is
The member is a member that covers the nest 6 and suppresses large movement of each package 19, and has a package pressing portion 22 formed of a grid-like rib and a nest pressing portion 23 formed of a rib on the outer peripheral portion. The nest pressing portion 23 is provided so as to protrude below the package pressing portion 22. Further, the ceiling plate of the lid 21 is provided with an opening 24 at a portion corresponding to the upper center portion of each package 19. The corner portion 25 of the nest 6 is a portion where the holding wall 16 and the shelf portion 17 are connected.

First, as shown in FIG. 3A, the nest 6
And the platform 9 are combined to adsorb the resin-sealed substrate 1 through the suction port 13, and then the resin-sealed substrate 1 is cut by the blade 20.

Next, as shown in FIG. 3B, when the resin-sealed substrate 1 is cut into all the packages 19,
After releasing the suction, the nest 6 is raised. As a result, each package 19 is held by the shelf 17 in each housing 8 of the nest 6 and is held by the holding wall 16 so as not to move largely in the horizontal direction of the drawing. Then, the lid 21 is lowered and each package 19
Hold it so that it does not move significantly in the vertical direction of the figure. Here, the package pressing portion 22 of the lid 21 is positioned above the corner portion of the package 19, and the nest pressing portion 23 of the lid 21 is positioned above the outer frame 15 of the nest 6 to lower the lid 21. .

Next, as shown in FIG. 3C, the nest pressing portion 23 and the outer frame 15 are brought into pressure contact with each other. As a result, the package 19 has the package pressing portion 22 at the corner.
From the above, a predetermined gap is maintained so that the vertical direction of the drawing does not significantly move. In other words, package 19
Are held movably in a small gap provided between the nest 6 and the lid 21, respectively.

In this state, the nest 6 is put in the cleaning tank and the package 19 is cleaned with the cleaning liquid. Further, the nest 6 is put in a dryer and the package 19 is dried by dry air or the like. Then, as indicated by the thick arrow in the figure, the cleaning liquid in the cleaning process and the dry air in the drying process respectively pass through the notches 18 between the lid 21 and the package 19 and between the holding wall 16 and the package 19.
Meanwhile, it flows in a narrow space between the shelf 17 and the package 19. As a result, the cleaning liquid and the dry air also flow in and out between the corner portion 25 and the package 19 via the notches 18, respectively.

A feature of the holding jig for the package according to the present invention, that is, the nest 6, is that the notch 18 is provided in the vicinity of the central portion of each holding wall 16. Accordingly, the cleaning liquid in the cleaning process and the dry air in the drying process easily flow into and out of the package 19 via the notches 18, respectively. Therefore, the cleaning / drying time can be shortened, and the foreign matter remaining in the corner portion 25 can be reduced.

In the above description, the notch 18 is provided near the center of each holding wall 16 to secure the strength of the holding wall 16. Alternatively, the cutout 18 may be provided in a portion where the holding walls 16 are connected to each other.
In this case, since the holding wall 16 is provided in the vicinity of the central portion of each side in the housing portion 8 viewed from above, it is necessary to sufficiently maintain the strength of the holding wall 16. On the other hand, the cutouts are provided in the portions where the wash water and the dry air are most unlikely to flow and the foreign substances are most likely to remain, that is, in the vicinity of the four corners of the housing portion 8 in plan view. Therefore, it is possible to more effectively reduce the cleaning / drying time and the residual foreign matter.

[0025]

According to the present invention, when the package is cleaned while being held by the holding jig, the cleaning liquid flows sufficiently around the package, so that the cleaning effect is improved and the cleaning time is improved. Shortened. Also, when the package is dried, the gas flows sufficiently around the package, thus reducing the drying time. Therefore, the present invention has an excellent and practical effect of providing a jig for holding a package that shortens cleaning / drying time and reduces residual foreign matter.

[Brief description of drawings]

FIG. 1 is a perspective view schematically showing a state in which a jig for holding a package according to the present invention, that is, a nest is used.

2A is a partial perspective view showing the shape of the nest of FIG. 1, and FIG. 2B is a partial cross-sectional view showing a state in which the nest holds a package along the line AA of FIG.

3 (A), (B), and (C) show a process of cutting a resin-sealed substrate, a process of holding each package, and a process of using each package by using a platform and a nest in combination. It is a fragmentary sectional view showing the process of washing and drying, respectively.

4 (A), (B), and (C) are a combination of a conventional package holding jig and a suction jig,
FIG. 7 is a partial cross-sectional view showing a step of cutting the resin-sealed substrate, a step of holding each package, and a step of washing and drying each package.

[Explanation of symbols]

1 Resin-sealed substrate 2 Board body 3 Sealing resin 4 dicing line 5 Package area 6 Nest (holding jig) 7 Side wall 8 accommodation 9 platforms 10 tables 11 Adsorption part 12 recess 13 Suction port 14 Vacuum pump 15 Outer frame (side wall) 16 retaining wall 17 shelves 18 Notch 19 packages 20 blades 21 lid 22 Package holder 23 Nest holding part 24 openings 25 corners

Claims (2)

[Claims] 1. A resin-sealed substrate in which a plurality of chip-shaped electronic components are resin-sealed is cut to form a package including individual pieces containing the electronic components, and then the packages are washed or dried. A lattice-shaped accommodating portion that is used in the case of accommodating each of the packages and is surrounded by side walls,
A jig for holding a package having a holding wall which is formed of a part of the side wall and has the wall retracted, and which holds the package, and a shelf portion at the base of the holding wall to which the package is locked. A holding jig for a package, characterized in that a cutout is formed in the holding wall. 2. The package holding jig according to claim 1, wherein the notch is provided in a portion other than a portion where the holding walls are connected to each other.