JP3241588B2 - MCM mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an MCM mounting structure suitable for use in electronic equipment such as information processing equipment and electronic exchanges. The present invention relates to a connector structure for connection.

[0002]

2. Description of the Related Art Conventionally, an MCM (multi-chip module) 67 as shown in FIG.
Is composed of a ceramic substrate, a printed wiring board, or the like.
An MCM mounting structure in which a plurality of LSIs 53 are connected to the front surface of the substrate 4 by soldering and the MCM terminals 64 are connected to the back surface of the substrate 54 using a brazing material (solder, silver brazing material, AuSn brazing material, etc.). .

[0003] Further, since it is necessary to maintain the MCM 67 in units or to divide the manufacturing units, an MCM mounting structure is employed. Therefore, it is common to use the MCM 67 connected to an MCM connector. , MC illustrated in FIG.
An M connector 51 and the like are employed.

In the state shown in FIG.
4 is connected to the terminal guide port 58 of the terminal guide plate 68.
, The substrate 54 is brought into contact with the terminal guide plate 68, and FIG.
5 (B), the terminal guide plate 68 is horizontally moved in the direction of the arrow in FIG. 15 (C), and the MCM immediately before the preload pin 56 attached to the terminal guide plate 68 is pushed out of the contact 57. Terminal 64 is contact 57
, So that the preload pin 56 and the MCM terminal 64 are interchanged.

In such a state that the contact 57 having the two cantilever contact pieces is opened by the preload pin 56 to such a width that there is no problem in contact, the MCM terminal 64 is attached to the open end of the contact 57 and then Since the preload pin 56 and the MCM terminal 64 slide on the contact surface of the contact 57, the force for inserting the MCM 67 can be reduced, and no excessive external force is applied to the MCM terminal 64.

Further, the conventional MCM connector 51 is shown in FIG.
6, the contacts 57 connected by the carrier 62.
As a basic assembly unit, the shoulder 5 of the contact 57
9 abuts the tip of a connector driving jig (not shown),
Contact 57 in through hole 61 of motherboard 52
15A, the housing 60 shown in FIG. 15A is attached, and the preload pins 56 of the terminal guide plate 68 are positioned between the contacts of the contacts 57. ).

[0007]

SUMMARY OF THE INVENTION The above-mentioned conventional MCM
In 67, when the MCM 67 is not fitted to the MCM connector 51, the MCM terminal 64 is exposed.
Are easily deformed as illustrated in FIG.

MCM 6 having deformed MCM terminal 65
When the MCM 7 is fitted to the MCM connector 51, there is no particular problem as long as the deformation is such that the deformation is corrected by the MCM terminal guide opening 58 of the terminal guide plate 68. Fig. 17
As shown in (B), the deformed input / output terminal (MCM terminal) 66 buckles.

Since the buckled MCM terminal 66 has a large amount of deformation, even if it is lost due to repair or the deformation is restored, M
The shape may not be able to contact the CM connector 51 normally.

Therefore, a method of visually inspecting the deformation state of the MCM terminal 64 from the side surfaces of the column and the row before the fitting is adopted. However, the judgment of the allowable deformation amount of the MCM terminal becomes ambiguous, and the quantitative value is determined. However, there is a problem that the inspection work is extremely difficult and complicated.

The MCM terminal 64 is joined to the back surface of the substrate 54 with a brazing material. When the substrate 54 is a printed wiring board, the adhesion strength of the copper foil is low. When the substrate 54 is a glass ceramic substrate, Since the strength of the glass component is low and the adhesion strength between the glass component and the conductive material is low, MC
The bonding strength of the M terminal 64 becomes extremely small. These printed wiring boards and glass ceramic substrates are materials having excellent high-speed signal transmission characteristics and are often requested to be applied to the MCM67. However, if even one terminal is missing, it becomes a defective product. Large multi-terminal MCM
There is a problem that it is difficult to apply to a mounting structure.

Furthermore, in the conventional MCM connector 51,
Since the contacts 55 with carriers connected by carriers shown in FIG. 16 are used as a basic assembly unit to perform the contact driving, if the MCM connector having 2,000 terminals is assembled with the contacts 55 with the carrier, the number of times of contact driving is 200. It becomes times.

Further, in the contact driving operation, a driving jig is set on the shoulder portion 59 of the contact 55 with a carrier, the tip of the contact 57 is inserted into the through hole 61 of the motherboard 52, and after the contact is driven, the carrier 62 is driven. It is necessary to repeat the unit work 200 times to remove the work, which makes the work procedure difficult and poor in workability (work efficiency). Yes,
There was a problem of inviting high costs.

Accordingly, the present invention has been made in view of the above-mentioned problems of the prior art, and when an electronic device is configured by combining an MCM (multi-chip module) and an MCM connector, a terminal guide port is provided. By accommodating the MCM terminals and sequentially exposing and fitting the MCM terminals in the process of fitting the MCM to the MCM connector, it is possible to avoid deforming the MCM terminals in the handling stage of the MCM and to join the MCM terminals. An object of the present invention is to provide an MCM mounting structure that can be applied to a substrate having low strength. The present invention also provides a multi-terminal MCM by combining several small-sized MCM connectors with the contacts of the MCM connector pre-assembled in the housing in advance.
An object of the present invention is to provide an MCM connector in which a connector can be configured so that the number of times of contact can be greatly reduced.

[0015]

In order to achieve the above object, according to a first aspect of the present invention, a location plate is provided in a location plate storage portion of an MCM holder block provided opposite to an MCM connector, An elastic member having an urging force is provided between both ends of the location plate and a bottom of a groove provided at a position facing the end of the MCM holder block, and MCM terminals are provided in MCM terminal guide holes of the location plate. Is provided so as to be accommodated therein.

Further, the present invention relates to an MCM connector used with the MCM mounting structure described in the first aspect.
Then , the two opposing cantilever contact pieces are connected by a U-shaped bent portion, one end of the U-shaped bent portion is extended to form a shoulder portion, and the lower portion of the shoulder portion has no solder. An MCM contact having a connection portion is provided with a square convex portion on a vertical wall on a short side, and a solderless connection portion penetrates a position close to the vertical wall opposed to the vertical wall on the short side. The two cantilever contact pieces of the MCM contact are arranged in a housing formed with a plurality of rectangular grooves having a square post through portion so as to sandwich the square convex portion. M
Provide a CM connector.

[0017]

According to the present invention, a location plate storage portion is provided in an MCM holder block corresponding to a small divided MCM connector for connecting an MCM, and upper surfaces of both ends of the location plate and a cylindrical groove formed in the MCM holder block. A compressed coil spring is provided between the bottom surface of the MCM terminal and the MCM terminal guide hole of the location plate.
The tip of the CM terminal is housed, and the MCM terminal is configured to be sequentially exposed during the process of fitting to the connector, so that the MCM terminal is not exposed to the outside.
It is possible to eliminate the opportunity for the M terminal to be deformed. As a result, according to the present invention, the operation of checking the deformation state of the MCM terminal can be eliminated, and good contact between the MCM terminal and the multi-terminal MCM connector can be realized.

Further, according to the present invention, the MCM terminal can be housed in the MCM terminal guide port of the location plate, and the MCM terminal can be protected from an external force applied to the MCM terminal in a handling stage. In addition, M
The interference between the MCM terminal and the contact when the CM is inserted, and the force applied when the MCM terminal is inserted into the two cantilever contact pieces can be mitigated by being clamped by the square convex portion. , MCM terminals can be prevented from being applied with excessive external force.

Therefore, according to the present invention, the present invention can be applied to a printed wiring board or a glass ceramic substrate having a small joint strength of the MCM terminal, has excellent high-speed signal transmission characteristics, has a large substrate size, and has a large number of terminals. Is realized.

Further, according to the present invention, an MCM contact is assembled in advance in a rectangular groove provided in a housing to form a small divided MCM connector.
By combining several M connectors to form a multi-terminal MCM connector, there is no obstacle above the shoulder of the contact, so it is possible to drive all at once with a contact driving jig corresponding to the shoulder Thus, the contact driving operation process can be simplified, and the contacts are not deformed during the operation, so that the number of times of contact driving can be greatly reduced.

[0021]

Embodiments of the present invention will be described in detail below with reference to the drawings.

[0022]

1 to 4 show an embodiment of an MCM mounting structure according to the present invention. That is,
FIG. 1 shows an MCM holder block according to an embodiment of the present invention. FIG. 1 (A) is a plan view and FIG. 1 (B) is a front view. FIG. 2 shows a location plate mounting portion of the MCM holder block according to the embodiment of the present invention.
(A) is an enlarged partial plan view, and FIG. 2 (B) is FIG. 2 (A).
5 is a cross-sectional view of the MCM terminal storage section of FIG. Further, FIG. 3 shows an MCM holder block according to an embodiment of the present invention.
FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view. 4A and 4B show an insertion / extraction structure of the MCM connector and the MCM mounting structure according to an embodiment of the present invention. FIG. 4A is a plan view, and FIG. 4B is a side view.

In FIGS. 1 and 2, the subdivision M shown in FIG.
The location plate storage section 6 is formed in the MCM holder block 1 corresponding to the CM connector 10 and the cylindrical groove 2 is formed.
The location plate 3 is pushed into the location plate storage part 6 from below in FIG.

More specifically, the upper surfaces of both ends of the stored location plate 3 are pressed downward by the restoring force (biasing force) of the compressed coil spring 4 to support the convex portions 11 on both lower surfaces of the location plate 3 and the MCM holder block 1. The location plate 3 cannot move in the longitudinal direction because the portion 12 is engaged. Therefore, after the coil spring 4 is attached to the location plate storage section 6 and assembled into the MCM holder block 1, the location plate 3 does not easily fall off.

The MCM holder block 1 shown in FIG. 1 has 11 terminals according to the MCM terminal arrangement shown in FIG.
Pieces of location plates 3 are stored. An MCM terminal guide port 13 is formed in the location plate 3 for each MCM terminal 64, and a guide taper is provided on the surface of the MCM terminal guide port 13, so that the inner wall of the MCM holder block 1 and the MCM 67 (FIG. When the MCM 67 is gently lowered into the MCM holder block 1 using the outer wall of the MCM terminal 64 as a mark, the deformation of the MCM terminal 64 is corrected by the guide taper of the MCM terminal guide port 13 to correct the deformation of the MCM terminal 64.
4 reaches the end surface of the MCM terminal guide port 13 and
The terminal forming surface of the CM 67 hits the surface of the reinforcing beam 14 and stops.

In this assembling process, even if there is a deformed MCM terminal that cannot be corrected by the MCM terminal guide port 13, it is determined that there is only an equivalent amount of deformation in the thickness of the location plate 3, and the MCM terminal 64 buckles. Since the amount of displacement is not so large, an abnormality can be easily detected, the descent operation can be interrupted, and the deformation of the terminal can be repaired.

FIG. 3 shows an MCM mounting structure combined according to the above-described procedure. With the MCM 67 placed flat on the MCM holder block 1, the MCM fixture 15
MCM fixture 15
Are fixed to the side plate 5 with fixing screws 16. Side plate 5 is MCM with block fixing screw 17
Since it is fixed to the holder block 1 (see FIG. 3C), the space between the top surface of the reinforcing beam 14 and the bottom surface of the MCM 67
The MCM 67 has a space formed by the reinforcing beam 14 and the MCM fixture 15 in a state where there is substantially no gap.
MCM holder block 1 in a state where it can be moved in the short side direction
Is held.

In this holding state, since many MCM terminals 64 penetrate into the MCM terminal guide holes 13 (see FIG. 3B), to move the location plate 3 in the longitudinal direction, It is necessary to deform all the penetrating MCM terminals 64 in the longitudinal direction. As a result, the location plate 3 can be moved only in the vertical direction.
The location plate 3 is held in a more stable state than when the CM holder block 1 alone is used.

Further, since the MCM terminal 64 is held at a position reaching the end face of the MCM terminal guide port 13, the MCM terminal 64 is placed on an obstacle smaller than the width of the location plate 3.
When the mounting structure is placed, the location plate 3
In order to prevent the self-weight of the MCM mounting structure from concentrating on a specific terminal, and when placed on a surface having large irregularities, excessive load is applied to the MCM by the ridge between the reinforcing beams 14-14.
MC that can be prevented from being applied to the terminal 64
An M mounting structure is realized.

FIG. 4 shows the MCM mounting structure and the MCM insertion / removal structure for inserting / removing the MCM connector. In FIGS. 3 and 4, the side plate 5 serves as a guide for fitting the MCM mounting structure. The pin 9 and the MCM locking groove 8 (FIG. 3) for locking the MCM mounting structure movably upward.
(See Reference).

Further, in the MCM insertion / extraction structure, an MCM mounting structure locking claw 18 is provided at a position corresponding to the MCM locking groove 8.
Since an opening 20 of a sliding groove 19 described later is formed at a position corresponding to the guide pin 9, the guide pin 9 is formed in the opening 20.
Can be set, the true position of the MCM mounting structure with respect to the MCM insertion / extraction structure can be set.

FIG. 5 shows a locking method by the MCM locking groove 8 and the MCM mounting structure locking claw 18 after the true position is determined. FIG. 5A is a partial sectional view before locking. FIG. 5B is a partial sectional view after locking. After the opening 20 and the guide pin 9 are fitted to each other and the state shown in FIG. 5A is pressed down, the MCM mounting structure is strongly pressed down. The lower edge of the MCM locking groove 8 is chamfered, and the locking member 21 moves to the left to move the coil spring 2
2 are compressed, but when the MCM mounting structure locking claw 18 enters the MCM locking groove 8, the compressed coil spring 2 is compressed.
2 recovers and pushes back the locking member 21, so that the MCM locking groove 8 and the MCM mounting structure locking claw 18
The mounting structure is locked.

Also, in this locked state, there is a moving gap 23 between the bottom surface of the MCM locking groove 8 and the upper end of the MCM mounting structure locking claw 18. It can be moved down to the height,
With this operation, a space in which the MCM mounting structure moves downward is secured.

On the other hand, referring to FIG. 4, a cam shaft 25 is rotatably fixed to the center of rotation of the handle 24 by a rotary bearing 26.
An insertion notch 29 for horizontally moving in a direction in which the M connector 10 and the MCM terminal 64 are in contact with each other, and a removal notch 30 for horizontally moving in a direction in which the small split MCM connector 10 and the MCM terminal 64 are out of contact are provided. Have been.

The MCM insertion / extraction member 27 has a small split M
An L-shaped portion 28 and an insertion wall 3 that abuts an insertion notch 29 of the camshaft 25 at a position corresponding to the CM connector 10.
1 and a removal wall 32 that abuts against the removal notch 30 of the camshaft 25. Then, the camshaft 25 is rotatable by the rotary bearing 26 so that the insertion notch 29 and the extraction notch 30 of the camshaft 25 are arranged in the space formed by the insertion wall 31 and the extraction wall 32. It is fixed to.

According to this configuration, interference between the insertion notch 29 and the insertion wall 31 and interference between the extraction notch 30 and the extraction wall 32
By adjusting the rotatable angle of the handle 24 and the outer diameter of the camshaft, the stroke required for inserting and removing the MCM connector can be set. In the example of FIG. 4, a stroke of about 1.1 mm is obtained at about 45 degrees. It has been set.

FIGS. 6 to 8 show that the upright handle 24 is used to press the MCM holder block 1 while rotating the handle 24 to about 45 degrees, and the remaining about 45 degrees is used to connect the MCM connector and the MCM.
The correspondence between the position of the handle 24 and the locked state of the MCM in a case where the configuration is such that the M terminal is connected / disconnected is shown. That is, FIG. 6 illustrates pressing of the MCM holder block 1, and FIG. 6A illustrates a stage in which the guide pin 9 is guided by the opening 20.

In this state, when the handle 24 is rotated in the direction of the arrow shown in the figure, the slider moving pin 33 provided integrally with the handle 24 turns, so that the slider 34 moves in the direction of the arrow shown in the figure and the guide pin 9 is moved. The sliding groove 19 is slid to reach the state shown in FIG.

The MCM holder block 1 is pressed down at a height equivalent to the amount of vertical movement from the state shown in FIG. 6A to the state shown in FIG. When the rotation reaches the handle 24, the guide pin 9 slides on the flat portion, so that the MCM holder block 1 is not pressed.

FIG. 7 shows an MCM mounting structure after pressing is completed.
FIG. 4 is a cross-sectional view showing the relationship between the MCM insertion / extraction structure and the MCM connector. When the MCM holder block 1 is pressed, the L-shaped portion 28
Is fitted, the small split MCM connector 10 and the location plate 3 are in close contact, and the MCM terminal 64 is located immediately before the contact. When the handle 24 is rotated in this state, the camshaft 25 rotates, and the insertion notch 2
9 competes with the insertion wall 31 to move the MCM insertion / extraction member 27 rightward, so that the location plate 3 connected by the L-shaped portion 28 moves to reach the state shown in FIG. Are connected to the small split MCM connector 10.

FIG. 8 shows a process of releasing (disconnecting) the contact between the MCM connector and the MCM terminal, and is a diagram showing a slight rotation play process after the connection of FIG. 7B is completed. 8 (A), when the handle 24 is rotated in the direction of the arrow, the removal notch 30 of the camshaft 25 competes with the removal wall 32 and moves the MCM insertion / extraction member 27 to the left, so that the handle shown in FIG. At this position, the contact between the MCM terminal 64 and the small split MCM connector 10 is released.

As described above, according to the present embodiment, the MCM holder block 1 is divided into small portions M by operating only the handle 24.
Press down on the CM connector 10 to open the small split MCM connector 1
The MCM terminal 64 is exposed immediately before the MCM contact 37 of the small split MCM connector 10 by compressing the coil spring 4 and exposing the MCM terminal 64 from the location plate 3 by the contact surface between the upper surface of the MCM 0 and the lower surface of the location plate 3. Can be placed.

FIG. 9 shows an MCM terminal arranged immediately before an MCM contact. FIG. 9 (A) is a partial plan view, and FIG.
(B) is a partial sectional view. Referring to FIG. 9, the MCM contact 37 has two cantilever contact pieces 38 connected to each other at a lower part of these contact pieces by a U-shaped bent portion 39,
It is configured to be able to contact the MCM terminal 64 on two sides. Further, the two cantilever contact pieces 38 are configured so as to sandwich the angular projection 41 with a width that releases the support when the MCM terminal 64 is connected.
Collides with the two cantilever contact pieces 38, and the reaction force for increasing the distance between the two cantilever contact pieces can be reduced. In addition, the square convex part 41 is provided on the vertical inner wall of the short side of the rectangular groove 43 provided on the insulator 36 that accommodates the MCM contact.

Further, one end of the cantilever contact piece 38 is extended to form a solderless connection portion 63, and the solderless connection portion 63
The MCM contact 37 is press-fitted into the rectangular groove 43 so as to penetrate through the square post penetrating portion 42 provided on the insulator 36 and is locked. In the small split MCM connector 10, the MCM contact 37 and the insulator 36 are integrated. Can be handled in units of

FIG. 10 shows the position of the MCM terminal 64 when the location plate 3 is moved in the direction shown in the drawing. FIG. 10 (A) is a partial plan view, and FIG. 10 (B) is a partial sectional view. 10A, the MCM terminal 64 is located at the center of the two cantilever contact pieces 38 of the MCM contact 37. In FIG. Since the width of the angular projection 41 is smaller than the outer diameter of the MCM terminal 64, the support of the two cantilever contact pieces 38 by the angular projection 41 is released, and the MCM contact 37 is A stable contact state with the MCM terminal 64 can be realized.

FIG. 11 shows a subdivided MCM having such a configuration.
Although the connector 10 is shown, a shoulder portion 59 for abutting a contact driving jig is formed immediately above the non-solder connection portion 63, so that a peripheral region of the shoulder portion 59 is an insulator 36.
11 is released, the anvil 45 of the contact driving jig 44 shown in FIG. 12 is abutted against the shoulder portion 59 to press the contact driving jig 44.
MCM connector 10 of motherboard 52
And can be connected to the through hole of the motherboard 52 at the solderless connection portion 63.

FIG. 13 is a view showing a mounting / detaching jig for mounting / detaching the MCM mounting structure.
13A, when the jig 47 is pushed into the side plate 5 in the manner shown in FIG. 13A, the locking portion 48 can be locked to the jig holding portion 7. The tool 47 can be attached to the MCM mounting structure, and the handling of the MCM mounting structure can be simplified.

When the button 49 attached to the unlocking rod 46 is depressed, the chamfered portion formed at the tip of the unlocking rod 46 hits the chamfered portion of the locking member 21 and moves the locking member 21 to the left. Therefore, the lock between the MCM locking groove 8 and the MCM mounting structure locking claw 18 is released, so that the MCM mounting structure can be removed from the MCM insertion / extraction structure. Further, when the attachment / detachment jig 47 simultaneously presses the convex portions of the two locking portions 48, it can be released from the jig holding portion 7 and can be removed.

With the above-described configuration, according to the present embodiment, the tip of the MCM terminal 64 is housed in the MCM terminal guide port 13 of the location plate 3,
In the process of fitting the MCM to the MCM connector, the MCM terminal 6
4 are sequentially exposed, and there is no state where the MCM terminal 64 is exposed to the outside, and there is no opportunity to deform the MCM terminal 64. As a result, it is possible to eliminate the work of checking the deformed state of the MCM terminal 64. Thus, good contact between the MCM terminal 64 and the multi-terminal MCM connector can be realized.

Further, according to the present embodiment, since the MCM terminal 64 is housed in the MCM terminal guide 13 of the location plate 3, an MCM (multi-chip module)
From the external force applied in the handling stage of 67, the MCM terminal 6
4 can be protected. Further, the interference between the MCM terminal 64 and the contact when the MCM 67 is inserted into the MCM connector and the force applied when the MCM terminal 64 is inserted into the two cantilever contact pieces are clamped by the angular convex portion 41. Since an excessive external force is not applied to the MCM terminal 64, it can be applied to a printed wiring board or a glass ceramic substrate having a small bonding strength of the MCM terminal 64, has excellent high-speed signal transmission characteristics, and has a large board size. MC which is a terminal
An M mounting structure can be realized.

The rectangular grooves 43 provided in the insulator 36 are
The MCM contacts 37 are assembled in advance to form the subdivided MCM connector 10, and several subdivided connectors 10 can be combined to form a multi-terminal MCM connector.
In this case, since there is no obstacle above the shoulder portion 59 of the MCM contact 37, the contact driving jig 44 corresponding to the shoulder portion 59 can be used for collective driving, so that the procedure for driving the contact can be simplified. Is possible, and the contact is not deformed during the operation, so that the number of times the contact is driven can be greatly reduced.

Note that the present invention is not limited to the configuration of the above-described embodiment, and the shape and structure of each part in the MCM mounting structure may be appropriately modified and changed within a range according to the principle of the present invention. Of course, and of course includes various modifications.

[0053]

As described above, the MC according to the present invention
According to the M mounting structure, the tip of the MCM terminal is housed in the MCM terminal guide hole of the location plate provided in the MCM holder block, the multi-terminal MCM connector is subdivided, and the contact and the insulator are integrally assembled. Although it has a simple configuration, there are various excellent effects listed below.

That is, according to the present invention, in the process of fitting the MCM to the MCM connector by operating the handle,
Since the terminal is configured to be sequentially exposed, the state where the MCM terminal is exposed to the outside does not occur, and the MCM terminal does not deform. Therefore, it is not necessary to check the deformation state of the MCM terminal. This makes it possible to increase the working efficiency and reduce the inspection cost.

In the MCM mounting structure according to the present invention, the MCM terminal guide port of the location plate is provided with the MC.
Since the M terminals are housed, when placed on an obstacle smaller than the width of the location plate during the handling process, the location plate prevents the weight of the MCM mounting structure from being concentrated on a specific terminal. When placed on a surface with large irregularities, the reinforcement beam prevents excessive load from being applied to the MCM terminal, so it can be applied to printed wiring boards and glass ceramic substrates with low MCM terminal bonding strength. A multi-terminal MCM mounting structure having excellent high-speed signal transmission characteristics and a large substrate size can be realized.

Furthermore, according to the present invention, M
The CM contact can be handled by the assembled small divided MCM connector, the upper part of the shoulder of the MCM contact is released, and the contact can be driven all at once using a contact driving jig with an anvil corresponding to the shoulder. The operation procedure can be simplified, the contact is not deformed during the operation, the number of times of driving of the contact can be greatly reduced, and a multi-terminal MCM connector can be configured by combining the small divided MCM connectors.

[Brief description of the drawings]

FIG. 1 shows a configuration of an MCM holder block according to an embodiment of the present invention, where (A) is a plan view and (B) is a front view.

2A and 2B show a location plate mounting portion of an MCM holder block according to an embodiment of the present invention, wherein FIG. 2A is an enlarged partial plan view, and FIG. 2B is a cross-sectional view of the MCM terminal storage portion of FIG.

3A and 3B show an embodiment of an MCM mounting structure according to the present invention, wherein FIG. 3A is a plan view, FIG. 3B is a front view, and FIG. 3C is a side view.

4A and 4B show one embodiment of an MCM insertion / extraction structure according to the present invention, wherein FIG. 4A is a plan view and FIG. 4B is a side view.

5A and 5B show an embodiment of the locking structure of the MCM mounting structure according to the present invention, wherein FIG. 5A is a partial cross-sectional view before locking, and FIG. 5B is a partial cross-sectional view after locking.

FIGS. 6A and 6B show pressing of the MCM holder block by rotation of the handle in the embodiment of the present invention, wherein FIG. 6A is a partial side view before pressing, and FIG. 6B is a partial side view after pressing.

7A and 7B show a process of inserting an MCM connector by rotating a handle in one embodiment of the present invention, wherein FIG. 7A is a partial side view before insertion, and FIG. 7B is a partial side view after insertion is completed.

8A and 8B show a process of removing the MCM connector by rotation of the handle in one embodiment of the present invention, wherein FIG. 8A is a partial side view before the removal, and FIG. 8B is a partial side view after the removal is completed.

FIG. 9 is a diagram showing an embodiment of the MCM contact according to the present invention, in which the MC arranged immediately before the MCM contact;
3A and 3B show M terminals, FIG. 3A is a partial plan view, and FIG.

FIG. 10 is a view showing one embodiment of an MCM contact according to the present invention, showing an MCM terminal in contact with the MCM contact, wherein (A) is a partial plan view and (B) is a partial cross-sectional view.

11A and 11B show one embodiment of a small split MCM connector according to the present invention, wherein FIG. 11A is a side view and FIG. 11B is a plan view.

FIG. 12 is a side view showing a contact driving jig suitably used in the embodiment of the present invention and a small split MCM connector before press fitting.

FIG. 13 is an MCM preferably used in an embodiment of the present invention.
(A) is a side view before mounting,
(B) is a partial side view after mounting, and (C) is a side view of a detachable jig.

14A and 14B show a conventional MCM mounting structure, in which FIG. 14A is a plan view and FIG. 14B is a front view.

FIGS. 15A and 15B are partial cross-sectional views showing a connection method using a conventional MCM connector, wherein FIG.
(C) shows the completion of the connection of the MCM terminal after M insertion.

FIG. 16 is a partial sectional view showing contact implantation by a contact with a carrier.

FIG. 17 is a partial sectional view showing buckling of MCM terminals in a conventional MCM mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 MCM holder block 2 Cylindrical groove 3 Location plate 4 Coil spring 5 Side plate 6 Location plate storage part 7 MCM attaching / detaching jig engaging part 8 MCM engaging groove 9 Guide pin 10 Small split MCM connector 11 Convex part 12 Support part 13 MCM Terminal Guide Port 14 Reinforcement Beam 15 MCM Fixing Tool 16 Fixing Screw 17 Block Fixing Screw 18 MCM Mounting Structure Locking Claw 19 Sliding Groove 20 Opening 21 Locking Member 22 Coil Spring 23 Moving Gap 24 Handle 25 Camshaft 26 Rotating Bearing 27 MCM insertion / extraction member 28 L-shaped part 29 Insert notch 30 Removal notch 31 Insertion wall 32 Removal wall 33 Slider moving pin 34 Slider 35 Depression 36 Insulator 37 MCM contact 38 Cantilever contact piece 39 U-shaped bending part 40 MCM Moving width 41 Square convex 42 square post penetration part 43 oblong groove 44 contact driving jig 45 anvil 46 unlocking rod 47 attaching / detaching jig 48 locking part 49 button 51 MCM connector 52 motherboard 53 LSI 54 substrate 55 carrier contact 56 preload pin 57 contact 58 terminal Guide port 59 Shoulder part 60 Housing 61 Through hole 62 Carrier 63 Solderless connection part 64 MCM terminal 65 Deformed MCM terminal 66 Buckled MCM terminal 67 MCM (multi-chip module) 68 Terminal guide plate

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Toru Kishimoto Nippon Telegraph and Telephone Corporation 3-9-1-2 Nishishinjuku, Shinjuku-ku, Tokyo (72) Inventor Keiichi Yasuda 3--19 Nishishinjuku, Shinjuku-ku, Tokyo 2 Nippon Telegraph and Telephone Corporation (72) Inventor Yasuo Kaneko Nippon Telegraph and Telephone Corporation 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo (58) Investigated field (Int. Cl. ⁷ , DB name ) H01L 23/32

Claims (5)

(57) [Claims] An MCM holder block includes a location plate in a location plate storage portion provided to face an MCM connector, and is provided at a position facing both ends of the location plate and the end of the MCM holder block. An elastic member having an urging force between the groove and the bottom of the groove.
M, characterized in that the terminal is configured to be housed.
CM mounting structure. 2. Use together with the MCM mounting structure according to claim 1 .
An MCM connector, wherein two opposing cantilever contact pieces are connected by a U-shaped bent portion, and one end of the U-shaped bent portion is extended to form a shoulder portion; An MCM contact having a solderless connection portion at the lower portion of the MCM contact is provided with a square convex portion on the vertical wall on the short side, and a solderless connection at a position close to the vertical wall facing the vertical wall on the short side. The two cantilever contact pieces of the MCM contact sandwich the square convex part in a housing formed with a plurality of rectangular grooves each having a square post penetrating part through which a connecting part penetrates. An MCM connector characterized by being arranged. 3. An MCM insertion / removal structure for inserting and removing the MCM mounting structure according to claim 1 with the MCM connector according to claim 2, wherein MCM terminals housed in the MCM mounting structure are housed in the housing. An MCM insertion / removal structure, comprising means for guiding the MCM connector from above and locking the MCM mounting structure in a state where the MCM mounting structure is positioned at a true position. 4. The MCM mounting structure according to claim 2, wherein said MCM mounting structure is moved horizontally relative to said MCM connector according to the rotation of a lever.
4. The MCM insertion / extraction structure according to claim 3, further comprising means for controlling connection and disconnection between the M terminal and the two cantilever contact pieces of the MCM connector. 5. The MCM mounting structure according to claim 1, wherein said elastic member comprises a coil spring.