JPH06171684A - Lead frame transportation magazine - Google Patents

Abstract

PURPOSE:To safely transport lead frames, which are used in producing semiconductor devices like a QFP, without distorting them. CONSTITUTION:A lead frame transportation magazine is a rectangular magazine container 1, and a number of protruding separators 2 are provided at intervals on the inner faces of opposite side walls 14 and 15 of the container 1, facing each other. To accommodate lead frames into the container, both side edges of the lead frames are inserted between the separators 2. The magazine container 1 is provided with sliding covers 17 and 18 at both ends, and the covers 17 and 18 are separate members from the container and cap be freely opened and closed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lead frame carrying magazine. More specifically, the present invention relates to a magazine that can safely carry a lead frame used for manufacturing a semiconductor device such as a QFP without deformation.

[0002]

2. Description of the Related Art Conventionally, for semiconductor devices such as QFP, semiconductor chips such as IC chips are mounted on a thin and long rectangular lead frame formed of a thin metal plate on which radial lead pieces are formed by pressing or etching. Have been manufactured by encapsulating and packaging this with a resin mold. In the manufacturing process of such a semiconductor device, the lead frame is often transported from a processor to a semiconductor chip mounter. When the lead frame is conveyed, conventionally, a large number of lead frames formed as rectangular thin plates are stacked on each other and housed in a magazine container including a main body container and a lid.

[0003]

However, for example, in the transportation of a lead frame using this conventional magazine container, since the lead frame is placed in a state in which the lead frame is vertically contacted in the magazine container, it is difficult to carry out the transportation. There is a problem in that the upper and lower lead frames may rub against each other due to the impact, and the lead frames may be deformed during transportation.

The present invention has been made in view of the above circumstances, and is a new one which solves the drawbacks of the conventional lead frame carrying magazine and allows the lead frame to be carried safely without being deformed. It is intended to provide a lead frame transport magazine.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention has a large number of partition sections projecting from each other on the inner surfaces of the opposite side surfaces of a rectangular magazine container. In a lead frame transport magazine in which both side edges of the lead frame are freely inserted between each partition, a slide type lid separate from the container is provided on both end surfaces of the magazine container so as to be openable and closable. The present invention provides a lead frame carrying magazine.

[0006]

[Operation] In the lead frame carrying magazine of the present invention, since a large number of partitions are provided to face each other on the inner surface of each of the opposite side surfaces of the rectangular magazine container, both end portions of the lead frame are projected. The edges can be inserted freely between the partitions, and a gap corresponding to the thickness of the partitions is formed between the many lead frames to be accommodated. This makes it possible to prevent the lead frames from coming into contact with each other and rubbing against each other during transportation. In addition, a slide-type lid, which is separate from the container, is arranged on both end surfaces of the magazine container so as to be openable and closable, which makes the lead frame loading / unloading work simple and easy, and is suitable for automating the loading / unloading work. Becomes

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The lead frame carrying magazine of the present invention will be described in more detail below with reference to the accompanying drawings. 1 and 2 are an exploded perspective view and an enlarged view of an end face portion showing an embodiment of a lead frame carrying magazine of the present invention, respectively.

For example, in the examples of FIGS. 1 and 2, a large number of partitions (at predetermined intervals) are provided on the inner surfaces of the opposite side surfaces (14) and (15) of the rectangular magazine container (1). 2) face each other and project. When the lead frame is housed in this magazine container (1), as shown in FIG. 3, both side edges of the lead frame (3) are inserted and locked between the partition pieces (2). . Since a gap corresponding to the thickness of the partition (2) is formed between the stored lead frames (3), even if a large number of lead frames (3) are stored, the lead frame (3) will not be removed. It is possible to prevent the vertical contact. Even if a shock or the like is applied during transportation, the lead frame (3) does not rub and deform. Safe lead frame (3) transport is realized.

Further, in the examples of FIGS. 1 and 2, the side surfaces (14) (1) are formed on both end surfaces of the magazine container (1).
5) and the lower surface (13) have a substantially L-shaped insertion frame (2
2) is also provided. A lid (1) provided separately from the magazine container (1) via the insertion frame (22)
7) (18) can be opened and closed by sliding it in the direction of the arrow shown in the figure. In FIG. 4, the lids (17) and (18) are inserted into the insertion frame (22), and the magazine container (1) is inserted.
Is illustrated as an example. Thus, by providing the slide type lids (17) and (18) on both end surfaces of the magazine container (1) so as to be freely opened and closed, the lead frame (3) stored in the magazine container (1) can be inserted and removed. Simple and easy. This is especially effective when the work is automated. Protrusions (27) are provided on the tops of these lids (17) (18), and the lids (17) (18)
It is easy to open and close.

For example, as shown in FIG. 5, the magazine container (1) having the above-mentioned structure is assembled by bending a sheet-like molded product (4) made by compression molding a thermoplastic resin such as polypropylene. You can Figure 6
(A) and (b) are respectively the front view and side view of the outer surface side which illustrated the sheet-shaped molded product which expanded the magazine container, respectively. 7A and 7B are a front view and a side view of the inner surface side, respectively.

6A and 6B and FIG.
As illustrated in (a) and (b), a sheet-shaped molded product (4)
Is the bottom surface (1) formed in a rectangle slightly larger than the width and the longitudinal dimension of the lead frame (3) illustrated in FIG.
Side surfaces (14) and (15) are respectively provided on both side edges in the longitudinal direction of 3). Further, an upper surface (16) is provided on the side edge of one side surface (14). Each of these faces (13) (1
The boundaries of 4), 15), and 16) can be formed by thin hinge portions (19) as illustrated in FIG. At both ends of the side surfaces (14) (15) and the lower surface (16), the substantially L-shaped insertion frame (22) illustrated in FIG.
Is protruding.

As illustrated in FIG. 7A, the partition (2) illustrated in FIG. 1 is formed on the inner surface of each of the side surfaces (14) and (15) of the sheet-shaped molded product (4). It projects almost along the entire length along the direction. Partition (2)
Can be molded, for example, with a thickness of 0.3 mm and a mutual spacing of about 0.3 mm. By forming the sheet-shaped molded product (4) by compression molding capable of molding at high pressure, the partition (2) having such a small size can be obtained. As illustrated in FIG. 1, the partition (2) has side surfaces (14) so that they face each other when the sheet-shaped molded product (4) of FIGS. 6 and 7 is assembled.
In (15), the same number is provided at the same intervals.

On the other hand, the lower surface (1
3) and a plurality of ribs (21) for reinforcement and spacers are provided on the inner surfaces of the upper surface (16) so as to project in the width direction. In addition, as illustrated in FIG. 6A, the side surface (14)
On the outer surface of (15), ribs (23) in the shape of a lattice frame for reinforcement are provided.
Is also protruding. Further, as illustrated in FIGS. 6 and 7, engagement protrusions (25) having a substantially L-shaped cross section are provided on the side edges of the upper surface (16), and the side edges of the side surface (15) are provided. The slit-shaped engaging hole (2
6) is provided.

For example, when assembling the sheet-shaped molded product (4) having the above structure, the side surfaces (14) (15) and the upper surface (16) are bent at the hinge portion (19) in the direction of the arrow shown in FIG. Then, the engaging projection (25) shown in FIG. 7A is inserted into the engaging hole (26) of the side surface (15) illustrated in FIG. 7B as shown in FIG. You can Its assembly is simple and easy.

The magazine of the present invention can be applied to a die bonding magazine, a cardboard box, or the like. Of course, the present invention is not limited to the above examples. It goes without saying that various aspects are possible in details such as the material, size, and assembly structure of the magazine.

[0016]

As described in detail above, according to the present invention, a gap corresponding to the thickness of the partition is formed between a large number of lead frames accommodated in the magazine container, and the lead frames contact each other during transportation. It is possible to prevent rubbing against each other. Further, the work of putting in and out the lead frame becomes simple and easy, which is particularly effective when the work of putting in and out is automated.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a lead frame carrying magazine of the present invention.

FIG. 2 is an enlarged view of an end surface portion of FIG.

FIG. 3 is a partial cross-sectional view illustrating a state in which a lead frame is stored.

FIG. 4 is a perspective view illustrating a state where a lid is attached to the magazine of FIG.

FIG. 5 is a perspective view illustrating an assembled state of a sheet-shaped molded product.

6 (a) and 6 (b) are respectively a front view and a side view of an outer surface side illustrating a sheet-shaped molded product in which a magazine container is developed.

7 (a) and 7 (b) are respectively a front view and a side view on the inner surface side illustrating a sheet-shaped molded product in which a magazine container is developed.

FIG. 8 is a partial cross-sectional view illustrating a hinge portion.

9 is an enlarged cross-sectional view of the magazine of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine container 2 Partitions 3 Lead frame 4 Sheet-shaped molded product 13 Lower surface 14, 15 Side surface 16 Upper surface 17, 18 Lid 19 Hinge part 21 Rib 22 Insert frame 23 Lattice frame-shaped rib 25 Engagement protrusion 26 Engagement hole 27 Projections

Claims (1)

[Claims] 1. A rectangular magazine container is provided with a plurality of partitions facing each other on the inner surfaces of the opposing side surfaces of the rectangular magazine container, and both side edges of the lead frame are freely inserted between the partitions. In the lead frame carrying magazine, the lead frame carrying magazine is characterized in that slide containers, which are separate from the container, are openably and closably arranged on both end surfaces of the magazine container.