JPH02872Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] The present invention relates to an IC socket used in an IC handler, and in particular, it is capable of tolerating slight deformation of the IC leads. This invention relates to an IC handler socket that has been improved so that there is no risk of expanding the deformation.

[Prior art]

An IC handler is an automatic device that sequentially transports a large number of ICs, automatically inserts and removes them into IC sockets, and tests the electrical performance of the ICs.

Therefore, the socket for the IC handler needs to be suitable for automatically attaching and detaching the IC to be inspected.

Suitable for automatic installation means that the operator does not need to see it with his or her eyes or make corrections with his or her fingertips.
This means that the IC can be quickly and reliably attached to the socket without the operator having to adjust the operating force, and there is no risk of damaging the IC.

FIG. 3 is a perspective view showing an example of a conventional IC socket.

The IC 1 has a shape in which a large number of leads 1b are implanted in parallel to a package 1a.

A large number of contact terminals 3 are arranged in a row in the box-shaped case 2a of the socket 2 so that the above-mentioned lead 1b can be inserted in the direction indicated by the chain line arrow.

For convenience of explanation, the direction in which the contact terminals 3 are arranged is Y.
Assume three orthogonal axes X, Y, and Z, with the insertion direction of the lead 1b being the Z axis.

FIG. 4 shows an exploded view of a portion of FIG. 3. The contact terminals 3 are arranged in rows in the Y-axis direction. In order to store this contact terminal 3, the case 2a includes:
A large number of terminal storage holes 2b are arranged in a row in the Y-axis direction. A partition wall 2c is formed between the terminal storage holes 2b arranged in a row.

FIG. 5 is a partially enlarged plan view of the vicinity of the contact terminal 3, in which the insertion openings 3a of the contact terminal 3 are lined up in the Y-axis direction.

[Problem that the invention attempts to solve]

In order to insert the IC lead into the insertion port 3a, it is ideal if the IC lead 1b is directly facing the insertion port 3a, as shown by the imaginary line A position.

However, since the lead 1b of the IC shown in FIG. 3 is a long and thin piece of metal and is deformed by even a slight external force, it is difficult to eliminate minute distortions.

If the leads are slightly distorted in the X-axis direction (perpendicular to the direction in which they are arranged), as in position B shown by the imaginary line in FIG. 5, there will be no actual damage. The reason for this is that, as shown in Fig. 4, the insertion opening 3a of the contact terminal 3 is tapered upward, so even if the lead 1b is slightly biased in the X-axis direction, it will not be guided to the tapered surface. This is because it is inserted into the contact terminal 3.

However, if the lead is biased in the Y-axis direction, as in position C shown by the imaginary line in FIG. 5, it cannot be inserted into the insertion opening 3a. If a force is applied in the direction of inserting the lead in this state, the lead will buckle and cause irreparable damage.

(Note) Although minute deformations in the lead 1b can be easily corrected, if the lead is bent in a manner that causes it to buckle, it will no longer be acceptable as a first-class product.

This idea was created in view of the above circumstances.
Even if one or more of the IC leads are slightly deformed in the direction in which they are arranged (Y-axis direction), it is possible to install the IC into the socket without expanding the deformation (meaning buckling) and perform electrical The purpose is to provide a socket for an IC handler that can be used for performance testing.

In an IC handler, a large number of ICs are transported at high speed and inspected in a so-called assembly process, so if an IC handler fails to attach an IC to a socket and the operation is interrupted, a large loss occurs.

That is, in the conventional technology, when an IC lead has a slight distortion, it causes deformation of the lead and failure of attachment, increasing loss. If the present invention allows minute deformation of the lead and avoids stopping the operation of the IC handler, it will have great benefits.

[Means for solving problems]

In order to achieve the above object, the IC socket of the present invention has a partition wall formed between the contact terminal storage holes arranged in a row in the case of the IC socket.
Provide a notch along the row of IC leads.

[Effect]

By providing the above-described notch, even if the leads of the IC are deformed in the direction of arrangement, they can be inserted into the contact terminals of the socket, so there is no risk of buckling the leads and expanding damage.

〔Example〕

Next, one embodiment of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 1 is a perspective view of one embodiment of the present invention,
FIG. 4 is a diagram corresponding to FIG. 4 in the conventional example described above. 2 is a plan view seen in the direction of the arrow in FIG. 1.

This embodiment is an example in which the present invention is applied to improve the above-mentioned conventional example, and the same drawing reference numbers as in the conventional example are used to refer to the same or similar components as in the conventional example.

The difference from the conventional example is that a notch 2d is provided in the partition wall 2c. This notch 2d is provided along the surface where the IC leads to be mounted are lined up. That is, the row installation line y- of the insertion opening 3a of the contact terminal 3
It may be provided along a vertical plane including y' (FIG. 2).

With this configuration, even if the lead is deformed and deviated in the Y-axis direction, for example at position C' shown by the imaginary line in FIG. There is no risk of buckling due to being hit.

[Effect of idea]

As detailed above, according to the IC socket of the present invention, one or more of the IC leads can
Even if it is slightly deformed in the row direction (Y-axis direction), it has the excellent practical effect of being able to be attached to a socket and used for electrical performance testing without expanding this deformation (meaning buckling). This greatly contributes to improving the operating rate of IC handlers.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway perspective view showing one embodiment of the present invention. FIG. 2 is a plan view seen in the direction of the arrow in FIG. 1. Figure 3 shows the conventional example.
FIG. 4 is a perspective view for explaining the IC socket, and is a partially exploded view of the conventional example. FIG. 5 is an explanatory diagram of the problems of the prior art. 1...IC, 1a...IC package, 1b...
...IC lead, 2...IC socket, 2a...case, 2b...terminal storage hole, 2c...bulkhead, 2d
...Notch, 3...Contact terminal, 3a...Lead insertion port.

Claims (1)

[Scope of utility model registration request] A plurality of contact terminals into which IC leads are inserted are formed, and the socket case is provided with a row of holes for accommodating the above-mentioned contact terminals, and the IC is mounted by fitting the contact terminals into the respective holes. In the handler socket, a notch is provided in the partition wall formed between the rows of holes, and the notch is provided along a surface including the leads of the IC mounted in the IC socket. characterized by being
Socket for IC handler.