JPH01255179A - Connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a technique that is effective when applied to a connector used by being attached to a wiring board such as a printed wiring board having metallized electrodes at the ends thereof.

[Conventional technology]

2. Description of the Related Art Printed wiring boards are generally used as burn-in boards used in burn-in tests in the manufacturing process of semiconductor devices, or as expansion boards for electronic computers and the like.

In such printed wiring boards, prescribed wiring and board electrodes are formed by etching copper foil or the like on the board surface, and semiconductor devices or electronic components, etc., connected to the wiring are formed on the main surface. It has an implemented structure.

The power supply structure for the semiconductor devices, etc. on the surface of the board is realized by a connector attached to one end of the printed wiring board, and the printed wiring board is supported by the connector, and the electrode terminal in the connector and the It was in contact with the board terminals, making it possible to supply power supply voltage and input/output signals.

Regarding such a conventional connector structure, Fig. 6(a)
, (b) and (C). That is, FIG. 6(a) is a front view showing the connector 61 attached to one end of the printed wiring board 2, FIG. 6(b) is a side view thereof, and FIG. FIG. 6 is a plan view showing the connector 61 in a closed state.

Note that, for convenience of explanation, both figures (a) and (b) are shown with a portion cut away.

In the connector 61 shown in the figure, 61a is a connector body made of synthetic resin constituting an insulating casing, and the top surface of this connector body 61a has an opening 63 into which one end of the printed wiring board 2 is inserted. ing. The opening 6
3, electrode terminals 64 are accommodated and attached in pairs via partitions 65 formed integrally with the connector main body 61a, and the lower ends of these electrode terminals 64 are connected to the lead bin 67.
The connector body 61a is formed to protrude outward from the lower surface of the connector body 61a. In this way, the connector 61 is in contact with and electrically connected to the corresponding board electrode 8 of the printed wiring board 2 inside the connector main body 61a, so that the power supply voltage can be supplied to the printed wiring board 2 from the outside. Signal human output has been realized.

[Problem to be solved by the invention]

By the way, when the printed wiring board 2 to which the connector 61 is attached requires a large amount of power supply, such as an aging board used for a nearing test of a semiconductor device in the manufacturing process of a semiconductor device, the printed wiring board 2 It is conceivable that a plurality of board electrodes 8 formed in the connector 61 are allocated for power supply.
The electrode terminals 64 on the sides are electrically insulated by partitions 65 and are independent, as shown in FIG. Therefore, even if the area of the board electrode 8 on the printed wiring board 2 side increases, the electrode terminal 64 on the connector 61 side
The inventor has revealed that there are many cases in which a large amount of power cannot be supplied to the printed wiring board 2 because the contact area with the printed wiring board 2 does not increase significantly.

The present invention has been made in view of the above-mentioned problems, and its purpose is to reduce electrical resistance when supplying power from the outside or applying signal input/output to a wiring board, thereby improving the reliability of power supply to the wiring board. The aim is to enhance sexuality.

The above and other objects and novel features of the present invention will become apparent from the description of this specification and the accompanying drawings.

[Means to solve the problem]

A brief overview of typical inventions disclosed in this application is as follows.

In other words, the connector has a structure that includes electrode terminals that are in contact with each board electrode of the wiring board and that selectively provide continuous conduction to the contact surface, and an insulating casing that holds the electrode terminals. That is.

[Effect]

According to the above means, since the contact surface of the electrode terminal on the connector side is also selectively and continuously conductive in correspondence with the board electrode of the wiring board formed in multiple series, the contact between the board electrode and the electrode terminal is The area can be increased, the contact resistance caused by the connector can be significantly reduced, and highly reliable power supply technology can be realized.

[Example 1] Figures 1 (a), (b), and (C) are a plan view, front view, and side view of a connector according to an embodiment of the present invention as seen from the mounting opening side, and Figure 2 (a). , (b) and (C) are perspective views showing the electrode terminals removed from the connector, and FIG. 3 is an explanatory diagram 2 showing the state of contact between the board electrodes of the printed wiring board and the electrode terminals of the connector.

The connector 1 of this embodiment has a connector body 1a as an insulating casing obtained by processing a hard resin such as polycarbonate into a predetermined shape with a mold, and this connector body 1a is made of glass fiber. It is in a state where the strength is reinforced by mixing.

The upper surface of the connector main body 1a has an opening 3 into which one end of the printed wiring board 2 is inserted, and within the opening 3 are electrode terminals 4 (4a, 4b) shown in FIG. They are housed in pairs with partitions 5 in between in the longitudinal direction.

The electrode terminal 4 used in this embodiment is formed by processing a metal plate made of, for example, a beryllum-copper alloy into a predetermined shape, and then gold-plating the surface. has a contact surface machined into a curved shape, and a slit 6 is formed in the vertical direction on this contact surface, so that the biasing force of the entire curved surface is increased. A lead bin 7 is formed, and the lead bin 70 portion is connected to the connector main body 1a as shown in FIG. 1(C).
It protrudes outward from the lower surface of. This electrode terminal 4 is
For example, it is possible to have an auxiliary plate 9 as shown in FIG. It also functions as a connector and has a structure that can prevent the connector 1 from heating.

The electrode terminals 4 include the single terminal (IP) shown in FIG. 2(a), the double terminal (2P) shown in FIG. 2(b), and even three or more terminals not shown in the figure. It may be of. Here, for example, the two sets of electrode terminals 4b have a structure in which a curved electrode surface is continuously formed for two pitches of the poles 8 of the substrate '1.

In FIG. 1(a), in addition to the single electrode terminal 4a, two
A series of electrode terminals 4b and a triple series of electrode terminals 4c are selectively used, and the board electrodes 8 of the printed wiring board 2 with which these multiple series of electrode terminals 4 come into contact also correspond to this, for example, with multiple series of electrode terminals 4c. ) has a terminal structure.

Therefore, according to this embodiment, when the board electrode 8 on the printed wiring board 2 side is formed with a large area, the electrode terminal 4 on the connector 1 side can also have a large area by using multiple electrode terminals. A large contact surface can be secured, contact resistance in the connector 1 is reduced, and a large amount of power can be supplied to the printed wiring board Fi2.

FIG. 3 shows this in terms of the contact surface ratio on the board electrode 8 of the printed wiring board 2 with the connector 61 of the conventional structure. That is, in FIG. 3, in addition to a single substrate electrode 8a, two substrate electrodes 8b and three substrate electrodes 8c are formed.

Two or three such substrate electrodes 8b.

8C, in the connector 61 shown in FIG. 6 described in the prior art, contact continuity was established only in the range shown by diagonal lines downward to the right in FIG.

However, according to this embodiment, the electrode terminals 4 are formed with double and triple structure electrode surfaces corresponding to the substrate electrodes 8b and 3c without intervening the partition part 5 in the necessary parts. . For this reason, in this embodiment, the substrate electrode 8 and the electrode terminal 4 are brought into contact and electrically connected in the range shown by diagonal lines downward to the left in the figure. Therefore, the contact area of the electrode terminal 4 can be significantly increased in correspondence with the board electrode on the printed wiring board 2 side, and the contact resistance can be reduced, making it possible to supply a large amount of power to the printed wiring board 2.

[Embodiment 2] FIG. 4 is a plan view of a connector 21 according to another embodiment of the present invention viewed from the opening 3 side, and FIG. 5 is a perspective view showing an electrode terminal of this embodiment.

The connector 21 of the second embodiment is characterized in that the electrode terminals 24 are not separated by the partition 5 in the longitudinal direction of the connector 21.

In this embodiment, a conductive metal auxiliary plate 22 is inserted between the back surface of each electrode terminal 24 and the opening wall surface of the connector 21 when viewed from the opening 3 side, and each electrode terminal 24 in the longitudinal direction is positioned at a predetermined position. They are in a mutually conductive state at t. The metal auxiliary plate 22 is removably inserted into the opening from three directions, and reduces variations in contact resistance due to variations in the contact area between the electrode terminals 24, and also functions as a heat sink. 21 is prevented from increasing in temperature.

According to the second embodiment, the metal support with a predetermined pitch is applied in accordance with the arrangement of the board electrodes 8 on the printed wiring board 2 side, for example, the arrangement of the board electrodes 3b and 3c in two or three rows. It is possible to replace the plate 22 as appropriate. Therefore, the necessary range of the electrode terminals 24 can be substantially multi-length electrode terminals, and a more versatile connector 21 can be provided.

Although the invention made by the present inventor has been specifically explained above based on Examples, it goes without saying that the present invention is not limited to the Examples and can be modified in various ways without departing from the gist thereof. For example, in the embodiment, a so-called double-sided board in which board electrodes are formed on both sides of the board body is illustrated, but it is also possible to use a single-sided board in which wiring and board electrodes are formed only on either side. Good too.

In the above explanation, the invention made by the present inventor was mainly applied to the field of application, which is a so-called connector attached to a printed wiring board.
The present invention is not limited to this, and can be widely applied to connectors mounted on ceramic wiring boards, etc., for example.

〔Effect of the invention〕

A brief explanation of the effects obtained by typical inventions disclosed in this application is as follows.

In other words, the connector has a structure that includes electrode terminals that are in contact with each board electrode of the wiring board and that selectively provide continuous conduction to the contact surface, and an insulating casing that holds the electrode terminals. By doing this, the contact surface of the electrode terminals on the connector side can be selectively and continuously formed in response to the board electrodes of the wiring board formed in multiple series, increasing the contact area between the board electrodes and the electrode terminals. It is possible to significantly reduce the contact resistance caused by the connector and realize highly reliable power supply technology.

[Brief explanation of the drawing]

FIGS. 1(a), 1(b), and 1(C) are plan views of a connector according to an embodiment of the present invention, viewed from the mounting port side, respectively;
Front view and side view; Figures 2 (a), (c) and (C) are perspective views showing the electrode terminals used in Example 1; Figure 3 shows the board electrodes of the printed wiring board and the electrode terminals of the connector. FIG. 4 is a plan view of a connector according to the second embodiment of the present invention viewed from the opening side; FIG. 5 is a perspective view showing the electrode terminal used in the second embodiment; FIG. 6 (a), (b), and (C) are a plan view, a front view, and a side view, respectively, showing a connector structure in the prior art. 1... Connector, 1a... Connector body, 2...
Number of printed wiring bases, 3...openings, 4゜4a, 4b,
4c... Electrode terminal, 5... Partition, 6... Slit, 7... Lead pin, 8° 3a, 3b, 3c...
Substrate electrode, 9... Auxiliary plate, 11... Connector, 22
...Metal auxiliary plate, 24... Electrode terminal, 61... Connector, 61a... Connector body, 63... Opening, 64... Electrode terminal, 65... Partition part, 67...・・・
lead bin. Agent Patent Attorney Daiwa Tsutsui Figure 3

Claims (1)

[Scope of Claims] 1. A connector mounted to conduct with a plurality of board electrodes formed on one end of a wiring board surface, which contacts each board electrode and selectively contacts the contact surface. A connector comprising a plurality of electrode terminals that are continuously connected and an insulating casing that holds the electrode terminals. 2. The connector according to claim 1, wherein the contact surfaces of the plurality of electrode terminals with the substrate electrodes are continuously brought into contact and conduction corresponding to the continuous formation of the substrate electrodes. 3. The electrode terminal is provided inside the opening of the insulating casing, and the wiring board is supported by the biasing force of the electrode terminal, and conduction is established with each electrode terminal on the back side where the biasing force of the electrode terminal acts. 2. The connector according to claim 1, wherein a reinforcing plate made of a conductive metal is detachably inserted therein.