JPH04367481A - Container tube for plcc package - Google Patents

Abstract

PURPOSE:To prevent leads of PLCCs(plastic leaded chip carriers) from being bent by keeping the PLCC package from moving and striking against each other when they are accommodated in tubes. CONSTITUTION:Tubes 1 is provided with protrusions 2 and holes 3 and piled up, so that the protrusions 2 of the tube 1 on the lower stage press PLCC packages 4 in the tube 1 on the upper stage, so that the PLCC packages 4 can not move inside the tubes 1.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage tube for PLCC packages.

0002

[Prior Art] Conventional PLCC (Plastic Lea
As shown in FIG. 4, the storage tube for dedChipCarrier) has a storage section made up of a rectangular tube 21 with no particular irregularities. The size of the storage hole inside the tube 21 is slightly larger than the size of the PLCC package 4, so that the PLCC package 4 can be freely taken in and taken out. Furthermore, even after the PLCC package 4 is housed in the tube 21, there is a slight gap between the tube 21 and the PLCC package 4, and there is no protrusion inside the tube 1 that would fix the PLCC package 4. was able to move freely within the tube 21.

0003

[Problems to be Solved by the Invention] In this conventional PLCC package storage tube, the PLCC package moves slightly within the tube, causing collisions with the PLCC package and collisions between PLCC packages, resulting in damage to the PLCC package.
There was a problem in that the leads led out from the LCC package were bent.

An object of the present invention is to provide a storage tube for a PLCC package that prevents collisions between the PLCC package and the tube and between the PLCC packages and prevents deformation of the leads.

[0005]

[Means for Solving the Problems] A storage tube for a PLCC package of the present invention includes a tube for storing a PLCC package, a protrusion provided on the top surface of the tube, and a protrusion provided on the bottom surface of the tube at a position corresponding to the protrusion. and a hole into which the protrusion is inserted.

[0006]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view of a first embodiment of the present invention, and FIG. 2 is a perspective view of the tube shown in FIG.

In the first embodiment, as shown in FIGS. 1 and 2, a projection 2 is provided on the top surface of the tube 1, and a hole 3 into which the projection 2 is inserted is provided at a position corresponding to the projection 2 on the bottom surface. When the tubes 1 are placed on top of each other, the protrusion 2 on the top of the lower tube 1
holds the PLCC package 4 inside the upper tube 1 through the hole 3 in the bottom of the upper tube 1. If the tubes 1 are fixed together with a rubber band etc. in this state, the PL
The CC package 4 no longer moves within the tube 1, and there is no contact between the leads of the PLCC package 4 and the tube 1, and no collision between the PLCC packages 4.
The lead 5 will no longer bend.

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

In the second embodiment, as shown in FIG. 3, when the tubes 11 are stacked, the protrusion 2 on the upper surface of the lower tube 11 passes through the hole in the bottom of the upper tube and passes through the hole in the bottom of the upper tube. The PLCC package 4 inside the tube 11 is held down, and the PLCC package 4 is further fixed with the convex part 6 for fixing the main body of the PLCC package 4 inside the tube 11. In this embodiment, since the main body of the PLCC package 4 is fixed, the PLCC package 4 does not move in the left-right direction, and bending of the leads 5 is even less likely to occur than in the first embodiment.

68-pin PLCC package (24×24
×4mm), if the height of protrusion 2 is set to 3mm, P
The height is suitable for holding down the LCC package.

0012

[Effects of the Invention] As explained above, the present invention
By making protrusions and holes in the package storage tube and stacking the package storage tubes, it is possible to hold down the PLCC package in the lower tube, preventing the PLCC package in the tube from moving and preventing the PLCC package from moving. Collision between package and tube and PL
This has the effect of preventing CC packages from colliding with each other and preventing deformation of the leads of the PLCC package within the tube.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a first embodiment of the invention.

FIG. 2 is a perspective view of the tube of FIG. 1;

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

FIG. 4 is a sectional view of an example of a conventional PLCC package storage tube.

[Explanation of symbols]

1, 11, 21 tube 2.Protrusion 3 Hole 4 PLCC package 5 Lead 6 Convex part

Claims (1)

[Claims] 1. A tube for accommodating a PLCC package, a protrusion provided on the top surface of the tube, and a hole provided at a position corresponding to the protrusion on the bottom surface of the tube into which the protrusion is inserted. Features of PLCC
Storage tube for packaging.