JP3421709B2 - IC clip for electric signal measurement - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an IC clip used for measuring an electric signal from an electrode of an electronic component such as a semiconductor, a socket, a connector, etc., especially from an external lead terminal of a surface mount type fine pitch semiconductor. It is about.

[0002]

2. Description of the Related Art In recent years, as the performance and miniaturization of electronic devices have advanced, the semiconductors used in these devices have become highly integrated, and the pitch of the external lead terminals of the semiconductors connected to printed wiring boards, etc. Fine pitch is progressing, 0.5m now
Even m pitches are used in mass production, and 0.3 mm pitch and 0.25 mm pitch are also being used.

In such a situation, a fine-pitch semiconductor can be used as a measuring electrode (IC clip) for measuring an electric signal from an electrode of an electronic component when developing, inspecting, or adjusting an electronic device. Type is required.

For example, as a conventional technique, there is an IC clip (50) for measuring an electric signal as shown in FIG. 8, and a metal hook which is interlocked in an integrated structure by pushing the operating portion (60) with a finger. When the (70) protrudes from the tip of the guide pipe (80), and then the finger is released from the operating section (60), the metal hook (70) is automatically pushed back by the built-in spring (75) to move the electrode to be measured. The electric signal is measured by securely grasping and conducting the electrode to be measured and the connection pin (65) and connecting the socket of the measuring instrument to the connection pin.

[Problems to be Solved by the Present Invention]

However, conventional ICs for measuring electric signals
In the clip, the semiconductor lead terminal pitch is 0.5 m
There was a problem that it was not possible to deal with m. For example, in order to attach the IC clips to the semiconductor lead terminals having a pitch of 0.5 mm continuously and in parallel, the thickness of the main body of the IC clip is reduced and the wire of the metal hook is used.
It is necessary to make the diameter smaller and the outer diameter of the pipe that houses the metal hook smaller, and if the size of each component is minimized, the strength of the main body of the IC clip and the operating section will be significantly reduced. However, the movement of the operation section was not smooth and not practical.

Further, the IC clip designed for a fine-pitch semiconductor has a sufficient outer diameter of the wire of the metal hook, and therefore is easily deformed by repeated clipping and has sufficient durability. There wasn't.

Further, since the metal hook is joined to the connecting pin inside the operation portion, there is a problem that only the metal hook cannot be replaced if it is once deformed or damaged.

[0008]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and in an IC clip for measuring an electric signal, which has a metal hook that interlocks with the movement of an operating portion, it has an insulating property. The metal hook (1) is inserted into the guide metal pipe (15) penetrating the main body (5) of the vehicle, and the operating portion (30) in which the metal pipe (18) and the connecting pin (40) are embedded is insulated. Electrical signal measurement, characterized in that it is mounted on the rear convex portion (6) of the flexible body (5), and the guide metal pipe (15) and the metal pipe (18) have a sliding structure. IC clip (8) for

Further, in an IC clip for measuring an electric signal, which is provided with a metal hook that interlocks with the movement of the operation portion, the metal hook is attached to the guide metal pipe (15) penetrating the insulating main body (5). (1) is inserted, and the operating part (30) in which the metal pipe (18) and the connecting pin (40) are embedded is attached to the rear convex part (6) of the insulative main body (5), and The guide metal pipe (15) and the metal pipe (18) have a sliding structure, and the joint portion of the metal hook (1) is outside the operation portion (30). This is an IC clip (9) for measuring an electric signal. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0010]

【Example】

Example 1 FIG. 1 is a schematic exploded view of an IC clip (8) for measuring an electric signal of the present invention, and FIG. 2 is a vertical sectional view of the IC clip (8) for measuring an electric signal, showing an insulating main body (5). Is formed with a recess (7) for accommodating the spring (3), a metal pipe (15) for guiding is penetrated, and a metal hook (1) made of a wire such as stainless steel, phosphor bronze or brass is guided. It is inserted in the metal pipe (15) for use. FIG. 3 is a vertical sectional view when the operating portion (30) of the electric signal measuring IC clip (8) is pushed in, and FIG. 4 is a vertical sectional view of a main portion.

The guide metal pipe (15) is made of metal such as stainless steel or brass, and the portions exposed from the insulating main body (5) toward the tip end are mounted with electric signal measuring IC clips in parallel. At this time, it is covered with a vinyl chloride tube (53) to prevent shorts.
The coating material is not particularly limited in material and form as long as it is an insulating material, and it may be coated with a polypropylene tube or an insulating coating material such as an enamel coating material.

A metal pipe (18) made of metal such as stainless steel or brass and a connecting pin () are attached to an operating portion (30) which is mounted on the rear convex portion (6) of the insulative body (5) and slides. 40) is buried, the metal pipe (18) is slidably contacted with one end of the guide metal pipe (15), and the metal pipe (18) and the connection pin (40) connected to the socket of the measuring instrument are soldered. And a conductive material such as a conductive adhesive.

The insulative body (5) and the operating part (30) are mounted by mounting the spring (3) in the recess (7) of the insulative body (5). The guide metal pipe (15) passes through the spring (3), one end of the spring (3) is brought into contact with the end of the metal pipe (18), and is inserted into the guide metal pipe (15). The metal hook (1) passes through the metal pipe (18) housed inside the operation part (30) and is welded to the rear portion of the metal pipe (18) with solder.

Embodiment 2 Next, another embodiment of the present invention will be shown. FIG. 5 shows I for measuring an electric signal.
FIG. 6 is a vertical cross-sectional view of the C-clip (9), and FIG. 6 is a vertical cross-sectional view of the operating portion (30) when the metal pipe (18) is pushed in.
The metal hook (1) and the metal hook (1) are protruded to the rear of the operation section (30) and are welded to the outside of the operation section (30) with solder (35). When the metal hook (1) is deformed or damaged, the solder (35) is melted to remove the metal hook (1) from the guide metal pipe (15), and a new metal hook is inserted and replaced. Is possible.

Embodiment 3 FIG. 7 is a vertical sectional view of an IC clip (10) for measuring an electric signal when an insulating cap (45) is pushed by a finger, and an L-shaped connecting pin (42) is a metal pipe. The L-shaped connecting pin (42), the metal hook (1) and the metal pipe (18) are projected to the rear of the operation part (30) while being in contact with the operation part (30) while being in contact with the (18). Insulating cap (4)
The structure is the same as in Example 1 except that the coating is performed in 5). Since the welded portion of the electric signal measuring IC clip (10) is covered with the detachable insulating cap (45), there is almost no possibility of shorting, and not only is it excellent in operability but also in appearance. It has a beautiful finish. Of course, like the second embodiment, the metal hook (1) can be replaced. In FIG. 7, the L-shaped connecting pin (42)
Are contacted with each other, but there may be a gap, and the shape is not particularly limited.

In the second and third embodiments, the joint portion of the metal hook (1) is behind the operating portion (30) but is not inconvenient when it is replaced later. The outer peripheral surface of the portion (30) may also be used.

Although solder is used as the joining material, any material can be used as long as it can be easily removed when the metal hook (1) is replaced. For example, a thermoplastic resin such as polypropylene or ABS, or a non-conductive material such as an instant adhesive may be used for joining. This is because the metal hook (1) is inserted through the guide metal pipe (15) and the metal pipe (18) and naturally bends so that the guide metal pipe (15) and the metal pipe (18) are This is because it is possible to conduct electricity by contacting the peripheral surface, and the same reason is that no inconvenience occurs when the metal hook (1) is joined to the outer peripheral surface.

Next, the operation of the electric signal measuring IC clips (8), (9) and (10) of the present invention will be described.
When the operating portion (30) and the insulating cap (45) are pushed toward the insulating body (5) with a finger while the sockets of the measuring instrument are connected to the connection pins (40) and (42), a metal pipe ( 18) slides on the outer peripheral surface at one end of the guide metal pipe (15) and moves. Interlocking with this movement, the grip portion of the metal hook (1) projects from the tip of the guide metal pipe (15), and the electrode to be measured is caught, and then the pressed finger is released, and the spring (3) automatically operates. Thus, the metal hook (1) is returned and the electrode to be measured is securely grasped, and the electrode to be measured and the connection pins (40) and (42) are conducted to measure an electric signal. In addition, when the operating part (30) or the insulating cap (45) is pushed with a finger to remove the metal hook (1) from the electrode to be measured, the operating part (30) or the insulating cap (45) is released. The operating portion (30) and the insulating cap (45) are returned to their original positions by the restoring force of the spring, and the grip portion of the metal hook (1) is housed in the guide metal pipe (15).

[0019]

The IC clip for measuring an electric signal of the present invention has strength even if the thickness is made thin because the insulating main body and the operating portion are reinforced by the guide metal pipe or the metal pipe, and the sliding structure is provided. Therefore, the movement of the main body and the operation portion and the movement of the metal hook are smooth, and the semiconductor lead terminals of 0.5 mm pitch, which have been difficult in the prior art, are continuously connected in parallel. It is possible to easily measure the electric signal of the measured electrode.

Further, since the metal hook is welded to the outside of the operation portion to the metal pipe or the connecting pin, or the outer peripheral surface of the operation portion or joined with a removable material, the metal hook is distorted or damaged. It can be easily replaced.

Furthermore, if the joint portion of the metal hook is covered with an insulating cap, it will not cause any shortage, and not only the operability will be excellent, but also the appearance will be beautiful.

[Brief description of drawings]

FIG. 1 is an exploded view showing an outline of an electric signal IC clip (8) of the present invention.

FIG. 2 is a vertical sectional view of an electric signal IC clip (8) of the present invention.

FIG. 3 is a vertical cross-sectional view of the electric signal IC clip (8) of the present invention when the operating portion is pushed in.

FIG. 4 is an enlarged cross-sectional view of a main part of the electric signal IC clip (8) of the present invention.

FIG. 5 is a vertical sectional view of an electric signal IC clip (9) of the present invention.

FIG. 6 is a vertical cross-sectional view of the electric signal IC clip (9) of the present invention when the operation portion is pushed in.

FIG. 7 is a longitudinal sectional view of the electric signal IC clip (10) of the present invention when the insulating cap is pushed in with a finger.

FIG. 8 is an exploded view showing an outline of a conventional IC clip.

[Explanation of symbols]

1 metal hook 3 springs 5 Insulating body 6 Insulating body rear projection 7 recess 8 IC clips for electrical signals 9 IC clip for electrical signals 10 IC clip for electrical signals 15 Guide metal pipe 18 Metal Pipe 30 Operation part 35 Solder 37 Solder 40 connection pins 42 L-shaped connecting pin 45 Insulating cap 50 Conventional IC clip for electrical signals 53 Vinyl chloride tube 60 Control 65 connection pins 70 metal hooks 75 Built-in spring 80 guide pipe 90 Main body of conventional IC clip for electric signal

Claims (2)

(57) [Claims] 1. An IC clip for measuring an electric signal, comprising a metal hook interlocked with the movement of an operating portion, wherein a metal hook is provided on a guide metal pipe (15) penetrating an insulating body (5). The operation part (30) in which (1) is inserted and the connection pin (40) connected to the metal pipe (18) and the socket of the measuring instrument is embedded is the rear convex part (5) of the insulating main body (5). 6) An IC clip (8) for electric signal measurement, which is mounted on 6) and has a sliding structure between the guide metal pipe (15) and the metal pipe (18). 2. An IC clip for measuring an electric signal, comprising a metal hook that interlocks with the movement of an operating portion, wherein a metal hook is provided on a guide metal pipe (15) which penetrates an insulating body (5). The operation part (30) in which (1) is inserted and the connection pin (40) connected to the metal pipe (18) and the socket of the measuring instrument is embedded is the rear convex part (5) of the insulating main body (5). 6), the guide metal pipe (15) and the metal pipe (18) have a sliding structure, and the metal hook (1) and the metal pipe (18)
An IC clip (9) for measuring an electric signal, characterized in that a joint portion of the pipe (18) is outside the operation portion (30).