JPS63265180A - Inspection jig of printed circuit board - Google Patents

Abstract

PURPOSE:To test and measure even a printed circuit board having contacts at a pitch smaller than a reference pitch, by inserting an adapter pin in the through-hole of a top board from below and connecting a flexible conductor to the lower part of said pin. CONSTITUTION:Adaptor pins 16 are inserted in the through-holes 13a of a top board 13 from below to be engaged therewith. One ends of flexible conductors 18 are connected to the lower parts of the adaptor pins 16 and a connector 17 is connected to the other ends of the flexible conductors 18. The connector 17 is engaged with the pins 11b of a bottom board 11. In this state, a printed circuit board 30 is arranged on the adaptor pins 16 and the adaptor pins 16 are brought into contact with the contacts 31 while the contacts 31 are electrically connected to probe pins 21.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a printed circuit board inspection jig that electrically connects the probe pins of an inspection device and a board contact, and is particularly applicable to an inspection device and , relates to a printed circuit board inspection jig suitable for electrical connection with a printed circuit board having contacts arranged at a pitch other than a predetermined pitch.

(Prior art) Conventionally, for example, the contact points of ICs, etc. have a diameter of 0.1 inch (2,54
The 10-pins are standardized to be formed at a predetermined pitch of 11n+), and a large number of 10-pins are arranged at this predetermined pitch in a printed circuit board inspection apparatus that tests and measures printed circuit boards.

When testing and measuring a printed circuit board in which contacts are formed at a pitch other than the predetermined pitch, for example, a printed circuit board inspection jig as shown in FIG. 3 is used to perform the test and measurement.

That is, the bottom board 1 placed on the inspection device 20 is equipped with a large number of probe pins 21 arranged at a predetermined pitch of 0.1 inch, and is made of a material such as acrylic or polycarbonate. A large number of through holes 1a are formed at the same pitch.

A top board 3 supported by a plurality of pillars 2 is arranged above the bottom board 1.

The top board 3 is made of a material such as acrylic or polycarbonate, and has a plurality of through holes 3a formed therein corresponding to the positions of the contacts 31 formed on the printed circuit board 30.

Then, the through hole 3a of the top board 3 and the bottom board 1
A contact bottle 4 is arranged between the through hole 1a and the through hole 1a.
The probe bin 21 of the inspection device rIt20 and the contact point 31 of the printed circuit board 30 are electrically connected to perform measurement.

In the printed circuit board inspection jig with the above configuration, the probe bin 2
Even if the pitch of 1 and the pitch of contact 31 are different,
A contact bin 4 is installed between the probe bin 21 and the contact 31.
By arranging them diagonally, the probe pins 21 and the contacts 31 are electrically connected to enable measurement. Further, the contact pins 4 can be easily attached and detached, and when measuring a different type of printed circuit board 30, the measurement can be made by replacing only the top board 3, which is provided with the through holes 3a corresponding to the contacts 31. It is configured so that it can be done.

(Problem to be Solved by the Invention) However, in recent years, due to high integration, the pitch of contacts formed on a substrate is often smaller than a predetermined standard pitch. When using printed circuit board inspection jigs, it becomes difficult to place contact pins in the case of a board on which a large number of contacts are successively formed at a pitch different from a predetermined standard pitch, for example, a pitch smaller than the predetermined standard pitch, making it difficult to measure. The problem is that it cannot be done.

The present invention has been made in response to such conventional circumstances, and it is possible to conduct tests even on a board, etc., in which a large number of contacts are successively formed at a pitch different from a predetermined reference pitch, for example, a pitch smaller than a predetermined reference pitch. It is an object of the present invention to provide a printed circuit board inspection jig that can perform measurements and that can measure many types of printed circuit boards by replacing only the top board.

[Configuration of the Invention (Means for Solving Problems) In other words, the present invention has a bottom board having a large number of through holes arranged at the pitch of probe pins of an inspection device, and a bottom board that corresponds to the contact positions of a printed circuit board. A printed circuit board inspection jig comprising a top board having arranged through holes and electrically connecting probe bins of the inspection device and printed circuit board contacts, the top board being inserted into the through holes of the top board from below. At least some of the probe pins and printed circuit board contacts are electrically connected via an adapter pin that is protruded from the top of the board and a flexible conductor that is connected to the bottom of the adapter pin. shall be.

(Function) In the printed circuit board inspection jig of the present invention, a large number of consecutively formed contacts at a pitch different from a predetermined reference pitch, for example, a pitch smaller than a predetermined reference pitch, are connected via the adapter pin and flexible conductor. electrically connect,
Test measurements can be taken. Furthermore, as in the past, by replacing only the top board, it is possible to measure many types of printed circuit boards.

(Example) Hereinafter, an example of the printed circuit board inspection jig of the present invention will be described with reference to FIGS. 1 and 2.

The bottom board 11 placed on the inspection device 20 is equipped with a large number of probe bins 21 arranged at a predetermined pitch of 0.1 inch, and is made of a material such as acrylic or polycarbonate. A large number of through holes 11a are formed at the same pitch as 21. Further, for example, a plurality of pins llb are implanted at the upper end of the bottom board 11, the lower ends of which are in contact with the probe pins 21.

A top board 13 supported by a plurality of pillars 12 is arranged above the bottom board 11. The top board 13 is made of a material such as acrylic or polycarbonate, and has a plurality of through holes 13a formed in correspondence with the positions of the contacts 31 formed on the printed circuit board 30.

Contact pins 14 are arranged in the areas where the through holes 13a of the top board 13 are arranged at a predetermined pitch of 0.1 inch, as in the conventional printed circuit board inspection jig described above.

Adapter pins 16 of the adapter 15 are inserted into areas where the through holes 13a of the top board 13 are arranged at a pitch smaller than a predetermined pitch of 0.1 inch.

This adapter 15 includes a plurality of adapter pins 16 , a connector 17 , and a plurality of adapter pins 1 and 1 .
6 and a plurality of flexible conductors 18 that electrically connect the conductors 6 and 6, respectively. Note that the connector 17 is
The flexible conductor 18 is fitted onto the upper part of the bottle Ilb of the bottom board 11, and electrically connects the flexible conductor 18 and the bottle Ilb.

Further, the adapter pin 16 is configured as shown in FIG.

That is, a coil spring 16b is arranged within a hollow cylindrical cylindrical member 16a. In addition, the cylindrical member 16
A bottle main body 16c is inserted into the opening at one end of the bottle a.

This bottle main body 16c has a protrusion 16d formed on its side surface, is engaged with the end of the opening by the protrusion 16d, and is biased in the direction of the arrow shown in the figure by a coil spring 16b.

One end of a flexible conductor 18 is connected to the lower end of the cylindrical member 16a.
and the bottle main body 16c are electrically connected via a coil spring 16b.

Further, the cylindrical member 16a is provided with an elastic member 16e that forms a convex portion projecting from the side surface of the cylindrical member 16a.

By deforming the elastic member 16e, the adapter pin 16 can be press-inserted into and pulled out from below into the through-hole 13a of the top board 13, and the elastic member 16e allows the upper surface of the stepped portion 13b inside the through-hole 13a to be inserted into and pulled out from below. is locked.

In the printed circuit board inspection jig of this embodiment with the above configuration, the electrical connection between the contacts 31 arranged on the printed circuit board 30 at a pitch smaller than a predetermined pitch of 0.1 inch and the probe bin 21 of the inspection device 20 is made. performed by the adapter 15,
That is, the adapter pin 16 is inserted into the through hole 13a of the top board 13 from below and locked therein, and the connector 17 is fitted into the pin llb of the bottom board 11. In this state, the printed circuit board 30 is placed above the adapter pin 16, the adapter pin 16 and the contact 31 are brought into contact, and the contact 31 and the probe bin 21 are electrically connected.

Therefore, it is possible to perform measurements even on a printed circuit board 30 in which a large number of contacts 31 arranged in small pitches are successively arranged. Furthermore, since the adapter pins 16 of the adapter 15 can be easily attached and detached, even if the pitch and position of the contacts 31 mentioned above are different, it is possible to measure many types of printed circuit boards 30 by simply replacing the top board 13. be able to.

[Effects of the Invention] As described above, the printed circuit board inspection jig of the present invention can inspect even substrates in which a large number of contacts are successively formed at a pitch different from a predetermined reference pitch, for example, a pitch smaller than a predetermined reference pitch. , test measurements can be performed, and measurements can be made on many types of printed circuit boards by replacing only the top board.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a printed circuit board inspection jig according to an embodiment of the present invention, Fig. 2 is a side view showing the main parts of Fig. 1, and Fig. 3 is a side view showing a conventional printed circuit board inspection jig. It is a diagram. 11...Bottom board, lla...Through hole, 13...Top board, 13a, old...Through hole, 14...Contact bin, 16...・・・・・・
・Adapter pin, 17...Connector, 18...
...Flexible conductor, 2o, old...Measuring device, 2
1...Probe bin, 30...Printed circuit board, 31...Contact. Applicant Tokyo Electron Co., Ltd. Agent Patent Attorney Sasa Suyama - Figure 1 Figure 2

Claims (1)

[Claims] (1) The inspection device includes a bottom board having a large number of through holes arranged at the pitch of the probe pins of the inspection device, and a top board having through holes arranged corresponding to the contact positions of the printed circuit board. In a printed circuit board inspection jig that electrically connects probe pins and printed circuit board contacts, an adapter pin that is inserted from below into a through hole of the top board and is locked in a protruding state at the top of the top board, and this adapter pin A printed circuit board inspection jig, characterized in that at least some of the probe pins and printed circuit board contacts are electrically connected via a flexible conductor connected to a lower part of the probe pin.