JPH1017069A - Storage magazine of semiconductor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a lead of a PLCC package stored in a magazine case from interfering with a lead in the longitudinal direction and bent by the impact such as drop. SOLUTION: A projection 2 is provided in the longitudinal direction of an inner wall bottom part of a semiconductor storage magazine case 1 for PLCC to the lead pitch, or a projection 2 to the sectional shape of a package body is provided on an inner wall side part of the magazine case 1. Because the movement in the transverse direction of the package is impeded, the leads are prevented from being bent through interference of the leads with each other in the longitudinal direction caused by the impact such as drop, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magazine case for storing semiconductor devices, and more particularly to a PLCC (PLASTIC).
(LEADED CHIP CARRIER) package.

[0002]

2. Description of the Related Art As shown in FIG. 4, in a conventional magazine case for storing a PLCC package, the inner wall has a rectangular cross section without any protrusion. A plurality of PLCCs are housed in a package having such a structure.

[0003]

In this conventional storage magazine case for PLCC, the cross section of the inner wall has a rectangular cross section without any protrusion. Since the lead portion of the PLCC protrudes from the four directions of the package, when the PLCC is stored, it is not fixed in the storage magazine case. Therefore, when an impact or the like is applied to the storage magazine case, there is a problem that the leads in the front-rear direction (AB direction in the drawing) of the semiconductor device collide with the inner wall and lead bending occurs.

[0004]

The PLCC storage magazine case of the present invention is provided with a projection at the bottom of the case in accordance with the lead pitch of the PLCC package. In addition, a projection is provided according to the cross-sectional shape of the PLCC package body.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view of a storage magazine case according to an embodiment of the present invention. A projection is provided at the bottom of the inner wall of the storage magazine case in the vertical direction in accordance with the lead pitch. In other words, by making the width of the projection a little smaller than the length between the leads of the PLCC, the projection is exactly fitted between the leads. Therefore, the lateral movement of the PLCC is eliminated, and the lead of the PLCC does not hit the inner wall and the lead does not bend.

FIG. 3 shows a second embodiment of the present invention. The same effect as described above can be obtained by providing a projection corresponding to the cross-sectional shape of the package body on the inner wall side of the upper part of the storage magazine case.

[0008]

As described above, the present invention provides a PLCC
Since the projection is provided on the inner wall portion of the package storage magazine case, there is an effect of preventing lead bending caused by an impact due to the fall of the magazine case.

[Brief description of the drawings]

FIG. 1 is a perspective view of one embodiment of the present invention.

FIG. 2 is a sectional view of the embodiment shown in FIG. 1;

FIG. 3 is a sectional view of a second embodiment of the present invention.

FIG. 4 is a perspective view of a conventional magazine case.

FIG. 5 is a sectional view of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Magazine case 2 Projection 3 Semiconductor device 4 Lead

Claims (2)

[Claims] 1. A storage magazine case for a semiconductor device, wherein at least one projection having a width corresponding to a lead pitch of a PLCC package is provided in a bottom portion of a tube-shaped magazine case in a longitudinal direction of the tube. 2. A storage magazine case for a semiconductor device, wherein two projections are provided in a vertical direction at upper inner corners of the inner shape of the tubular magazine case.