JP2001085130A - Socket for pin grid array package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve miniaturization by making smaller a socket itself and the space needed for operating it. SOLUTION: A sliding means is provided for reciprocating a sliding cover 20 between a first position in which a lead pin can be inserted up to a terminal mounting part in a base housing 10 through a through hole 23 and a second position in which the lead pin inserted up to the terminal mounting part is electrically contacted with a terminal. The sliding means includes a movable member 30 provided to be reciprocable along the base housing 10, an operating part 31 applying a force to reciprocate the movable member 30, and a converting mechanism for converting the reciprocation of the movable member 30 into the reciprocation of the sliding cover 20. This eliminates the need for an operating handle rotating within a vertical plane, and instead the sliding cover 20 is slid by the reciprocation of the movable member 30 moving within a plane.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a socket for a pin grid array package for connecting a lead pin to a package such as a semiconductor integrated circuit provided in a grid array state.

[0002]

2. Description of the Related Art Heretofore, this type of socket has a plate-shaped base housing having a plurality of terminals arranged in a grid and electrically connectable to lead pins of a pin grid array (PGA) package. And a plate-like slide member provided on the upper side and having a plurality of through holes in a lattice shape through which the lead pins can be inserted. In some cases, a cover member is further provided above the slide member. Through holes are also formed in this cover member (see, for example, JP-A-7-142134, Utility Model Registration No. 253644) and the like.

[0003] The slide member is provided to allow the lead pin to be inserted into the socket with zero insertion force when the pin grid array package is connected to the socket, and the lead pin is inserted into the terminal in the base housing through the through hole. The slide member is moved between a first position at which the terminal can be inserted to the mounting portion with zero insertion force and a second position at which the lead pin inserted to the terminal mounting portion and the terminal are electrically connected (engaged). The base housing is configured to be slidable in a plane parallel to the plate surface. The sliding of the slide member moves the lead pin to a position where it engages with the contact piece of the terminal on the base housing side, or moves to a position where the contact piece of the terminal engages with the lead pin.

[0004] The means for sliding the slide member is provided by setting a cam shaft along the rear edge of the base housing,
The camshaft is configured to be rotatable by an operation handle provided along the side of the socket, and is configured to push the slide member along the base housing via the camshaft. An operation handle for rotating the camshaft rotates between a horizontal state substantially parallel to the base housing and a vertical state substantially perpendicular to the horizontal state.

[0005]

As described above, the sliding means for the sliding member in the conventional socket for a pin grid array package can be rotated between a horizontal state and a vertical state on the side of the socket. It was configured using the operation handle provided in the. For this reason, the operation handle must be installed outside the socket, which not only hinders the miniaturization of the socket, but also widens the space for turning the operation handle to the side of the socket and above the socket. There was a problem that it had to be secured.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a socket for a pin grid array package that can reduce the size of the socket itself and the space required for operating the socket, and is effective in reducing the size.

Another object of the present invention is to provide a socket for a pin grid array package which has improved operability in addition to miniaturization.

[0008]

In order to solve the above problems, the present invention employs the following means.

According to a first aspect of the present invention, there is provided a base housing in which a plurality of terminals which can be electrically contacted with the lead pins of a pin grid array package are provided in a lattice, and are slidably disposed along the base housing. A sliding member provided with a plurality of through-holes through which the lead pins can be inserted in a grid, a first position at which the lead pins can be inserted through the through-holes to a terminal mounting portion in the base housing, and the terminal mounting; A second part for electrically connecting the lead pin inserted into the terminal to the terminal.
And a slide means for reciprocating the slide member to and from a position, wherein the slide means applies a movable member provided reciprocally along the base housing and a force for reciprocating the movable member. An operating unit and a conversion mechanism for converting the reciprocating movement of the movable member into the reciprocating movement of the slide member are provided.

According to this means, the operating handle which rotates in the vertical plane is eliminated, and instead, a conversion mechanism for converting the reciprocating movement of the movable member moving in the plane into the reciprocating movement of the slide member is provided. The socket itself and the space required for operating the socket itself can be reduced, and the size can be reduced efficiently.

According to a second aspect of the present invention, in the conversion mechanism of the first aspect, the reciprocating amount of the movable member is set larger than the reciprocating amount of the slide member.
In this way, by setting the reciprocating movement amount of the movable member to be larger than the reciprocating movement amount of the slide member, the minute movement amount of the slide member can be easily confirmed by the large movement amount of the movable member. .

According to a third aspect of the present invention, a conversion mechanism of the first and second means is provided between a pair of parallel guide surfaces provided on a movable member and a pair of guide surfaces protruding from a slide member. And a pair of guide surfaces extending in a direction intersecting the moving direction of the slide member. In this way, by making the convex portion enter between the pair of guide surfaces parallel to each other, the conversion mechanism can be formed thin and compact, and this also facilitates downsizing.

According to a fourth aspect of the present invention, in the conversion mechanism of the first and second means, a pair of parallel guide surfaces provided on the slide member and a pair of guide surfaces protruding from the movable member are provided. And a pair of guide surfaces extending in a direction intersecting the moving direction of the slide member. In this way, even if the relationship between the pair of guide surfaces and the convex portion that enters between the pair of guide surfaces is reversed, the conversion mechanism can be made thin and compact.

According to a fifth aspect of the present invention, a pair of guide surfaces of the third and fourth means are formed by opposing wall portions of a long hole provided in the movable member, and the sliding direction and the moving direction of the movable member are different. The configuration is such that the direction of movement of the member intersects at a substantially right angle. With this configuration, it is possible to reduce the width dimension of the movable member, reduce the occupied area in the width direction of the movable member, and secure a large moving amount of the movable member.

According to a sixth aspect of the present invention, an operating portion is provided integrally with the movable member in the first to fifth means, and a housing recess for housing the movable member in a reciprocally movable manner is formed in the base housing. The member is formed to have a thickness such that a portion excluding the operation unit is accommodated in the accommodation recess, and the operation unit is exposed on the surface side of the slide member. If you do this,
In addition to reducing the thickness of the entire conversion mechanism, the operation section is exposed on the front surface side of the slide member, so that the operation of reciprocating the movable member by the operation section can be easily performed.

According to a seventh aspect of the present invention, there is provided a structure in which a lock mechanism also serving as a stopper for restricting the movement of the movable member is provided between the operating portion of the movable member and the slide member in the first to sixth means. . By providing the lock mechanism in this way, it is possible to hold the moving position of the movable member and prevent the movable member from being moved carelessly. Thereby, the positioning of the slide member with respect to the base housing can be ensured.

According to an eighth aspect of the present invention, the operating section in the first to seventh means is constituted by two operating sections which are arranged at an interval in the moving direction of the movable member. According to this configuration, the manual operation of the movable member using the operation unit can be performed with higher operability as compared with the flat operation unit. In this case, it is preferable that the two operation units are set to have an interval at which a fingertip enters between the operation units, and have a shape that allows each of the operation units to be pinched by the fingertip.

[0018]

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

<First Embodiment> FIG. 1 is an exploded perspective view of a socket 1 for a pin grid array package according to a first embodiment of the present invention, and FIG. 2 is an overall perspective view of a slide member open position. FIG. 3 shows an overall perspective view of the slide member lock position.

As shown in FIG. 1, the socket 1 for a pin grid array package is made of a base housing 10 having a substantially rectangular plane made of an insulating resin, and the same insulating resin stacked on the upper surface of the base housing 10. A substantially rectangular slide cover (slide member) 20,
Resin movable member 3 that slides slide cover 20 with respect to base housing 10 (reciprocates in one direction)
0.

The sliding direction of the slide cover 20 is shown in FIG.
Is indicated by an arrow A. In the following description, the arrow A direction is referred to as a length direction including the base housing 10, and the arrow B direction perpendicular to the length direction and a plane parallel to the surface of the slide cover 20 is referred to as a width direction.

On both sides in the longitudinal direction of the base housing 10 and on both sides in the longitudinal direction of the slide cover 20, measures are taken to hold the slide cover 20 so as to be slidable only in the longitudinal direction with respect to the base housing 10. ing. That is, on both sides in the longitudinal direction of the base housing 10, low side portions 11 extending in the length direction of the base housing 10 are formed, and the locking portions arranged on the both side portions 11 at intervals in the length direction. A plurality of projections 12 are provided. Side plates 21 extending downward are provided on both sides in the length direction of the slide cover 20, and projections 22 (see FIG. 5) for engaging with the locking projections 12 of the base housing 10 are provided on the inner surfaces of the both side plates 21. Is provided. This projection 22
Extends in the length direction of the slide cover 20. Thereby, the slide cover 20 is slidable within a certain range only in the length direction.

The slide cover 20 is provided with a large number of through holes 23 arranged in a lattice. Lead pins 51 (see FIG. 6) of a pin grid array package (hereinafter, referred to as a PGA package) 50 are inserted into these through holes 23.

The base housing 10 includes the first housing recess 1.
3 and a second accommodation recess 14. Terminal receiving cavities 15 are formed in the first receiving recess 13 in a lattice shape corresponding to the through holes 23, and terminals 40 (see FIG. 10) are mounted in the respective terminal receiving cavities 15. As the terminal 40, various types of conventionally known shapes can be used. In this case, as shown in the plan view of FIG. 10, the guide pieces 41, 41 located on both sides and the elasticity A shape having a contact piece 42 having a property is used.

Although not shown, the terminal 40 is also provided with a tail which allows for surface soldering to a mounting board such as a printed circuit board. The tail projects downward from the lower surface of the base housing 10.

The movable member 30 is a flat rectangular plate.
The base housing 10 is housed in the second housing recess 14 and is configured to be reciprocally movable in the width direction of the base housing 10. That is, the second housing recess 14 is formed as a flat rectangular recess having a length substantially covering the entire length of the base housing 10 in the width direction. On the other hand, the length of the movable member 30 is about half the length of the second housing recess 14. Therefore, the movable member 30 is guided by the second housing recess 14 and can reciprocate with a stroke of about half of the entire length of the second housing recess 14. This movable member 30 has an operation unit 31 for reciprocating by applying a force with a finger or the like.
Are provided integrally.

The movable member 30 is provided with an elongated hole 32 extending in the length direction of the movable member 30, and the cylindrical convex portion 24 fitted in the elongated hole 32 projects from the inner surface of the slide cover 20. Is provided. This columnar projection 24
Is formed slightly smaller than the diameter d in the short axis direction of the long hole 32, and care is taken to prevent rattling between the two. The long hole 32 is skewed so as to be displaced in the length direction of the slide cover 20. Therefore, the movable member 3
By moving the slide cover 20 back and forth, the slide cover 20 can be moved back and forth in its length direction (direction of arrow A).

That is, as shown in FIG. 4, the elongated hole 32 includes a linear portion a at one end and a linear portion c at the other end extending in parallel along the longitudinal direction (sliding direction) of the movable member 30. And a skew portion b formed between the straight portions a and c. The skew portion b is displaced by the dimension α in the lateral direction of the movable member 30, and the displacement amount corresponding to the dimension α substantially corresponds to the reciprocating movement amount of the slide cover 20.

A straight portion a on one end and a straight portion c on the other end
Indicates that the movable member 3 is positioned when the projection 24 is at the position indicated by the broken line.
This is provided so that the sliding position of the slide cover 20 will not be affected even if the 0 moves slightly. For this reason, the lengths of the straight portions a and c are shorter than the lengths of the oblique portions b. Convex part 24
Is located in the area of the linear portion a of the elongated hole 32, the slide cover 20 is set to the open position shown in FIG. 2, and when the projection 24 is located in the area of the linear portion c of the elongated hole 32. The slide cover 20 is set to the lock position shown in FIG. In this embodiment, the movable member 30, the elongated hole 32, the projection 24, and the like constitute a conversion mechanism that converts the reciprocating movement of the movable member into the reciprocating movement of the slide member.

The elongated hole 32 of the movable member 30 is
Is not limited to a hole penetrating in the thickness direction. Therefore, the movable member 30 may have a shape having a pair of guide surfaces 33 and 34 parallel to each other. In consideration of this point, the elongated hole 32 may have a groove shape, or a shape in which a rib is erected and the wall surface of the rib is used as a guide surface, and the shape is not limited to the elongated hole. Can understand. However, from the viewpoint of manufacturability, a long hole is preferable.

A notch 25 extending in the width direction of the slide cover 20 is provided at one end in the length direction of the slide cover 20.
Are provided, and the movable member 30
Of the socket 1 is exposed to the front side of the socket 1. The operation unit 31 is substantially rectangular in a plane and is formed to be long in the moving direction of the movable member 30. Therefore, in a state where the entire socket 1 is assembled as shown in FIGS.
1 is moved.

Hooks 26 and 27 are provided at both ends of the notch 25 extending in the width direction of the slide cover 20, and hooks 36 and 37 which engage with these hooks 26 and 27 are provided at both ends of the operation unit 31. Have been. These hooks constitute a lock mechanism also serving as a stopper of the operation unit 31.

When a PGA package 50 such as a semiconductor package is mounted on the socket 1 having such a configuration, the movable member 30 is first moved by the operation unit 31 as shown in FIG. At the same time, the slide cover 20 is positioned at the open position. This open position is when the convex portion 24 is located in the region of the linear portion a on one end side of the elongated hole 32 in FIG.

Next, as shown in FIG. 7, the PGA package 50 is mounted on the surface of the slide cover 20 so that each lead pin 51 of the PGA package 50 passes through the through hole 23. Thereafter, as shown in FIG. 8, the operation unit 31 is moved in the direction shown by the arrow and stopped at the lock position. This lock position is when the convex portion 24 is located in the region of the linear portion c on the other end side of the elongated hole 32 in FIG.

When the operation section 31 is moved in the direction of the arrow, the movable member 30 integrated with the operation section 31 also moves at the same time. At this time, the movable member 30 moves in a state where a part of the outer peripheral surface of the convex portion 24 is in contact with the guide surface 33 of the elongated hole 32.
Thereby, the slide cover 20 slides almost simultaneously. The displacement amount α of the oblique portion b of the elongated hole 32 is the guide surface 33
, The slide cover 20 slides toward the operation section 31 with substantially the same stroke as the displacement amount α.

When the operation portion 31 is returned to the original open position, the movable member is moved in a state where a part of the outer peripheral surface of the convex portion 24 is in contact with the guide surface 34 of the elongated hole 32 on the side opposite to the guide surface 33. 30 will move. As a result, the displacement amount α
The slide cover 20 moves with substantially the same stroke as that described above, and returns to the original open position.

FIGS. 9 to 14 show the operation part 31, the movable member 30, the convex part 24, and the slide cover 2 in the operation described above.
FIG. 4 is an operation explanatory diagram showing a relative positional relationship between a reference numeral 0, a through hole 23, a terminal 40, a lead pin 51, and the like.

First, at the open position of the operation section 31 as shown in FIG. 9, each lead pin 51 of the PGA package 50 mounted on the socket 1 is moved to the terminal mounting section in the base housing 10 as shown in FIG. Enter with zero insertion force. In FIGS. 10, 12, and 14, the through hole 23 is indicated by a circle so that the relative positional relationship between the through hole 23 and the terminal 40 can be understood.

Next, when the operation unit 31 is located between the open position and the lock position as shown in FIG. 11, the lead pin 51 is moved by approximately half of the slide cover 20 as shown in FIG. It moves to a position where it approaches the contact piece 42 of 40.

Next, when the operation section 31 is at the lock position as shown in FIG. 13, the slide of the slide cover 20 corresponding to the displacement amount α causes the lead pin 51 to move to the terminal 40 as shown in FIG. The contact piece 42 is elastically deformed and moves to a position where it is electrically connected to the terminal 40. Thus, the mounting of the PGA package 50 is completed.

According to this embodiment, the conversion mechanism is provided for converting the reciprocating movement of the movable member 30 moving in the plane along the second housing recess 14 of the base plate 10 into the reciprocating movement of the slide cover 20. , A handle or the like that moves between a vertical position and a horizontal position can be eliminated. Thus, the space required for operating the socket 1 itself and the conversion mechanism can be reduced, and the size can be reduced efficiently.

Further, regarding the conversion mechanism, the slide cover 2
Since the reciprocating movement amount of the movable member 30 is set to be larger than the reciprocating movement amount of 0, the minute moving amount of the slide cover 20 can be easily confirmed by the large moving amount of the movable member 30 including the operation unit 31. be able to. Thus, the size can be reduced without lowering the workability of mounting the PGA package 50 on the socket 1.

A pair of guide surfaces 3 parallel to each other
By making the convex portion 24 enter between 3 and 34, the conversion mechanism can be formed thin and compact, and this also facilitates downsizing. Further, a pair of guide surfaces 33, 3
4 is formed by opposing wall portions of the elongated holes 32 provided in the movable member 30, and the moving direction of the movable member 30 and the moving direction of the slide cover 20 intersect at a substantially right angle, It is possible to reduce the width of the movable member 30 to reduce the area occupied by the movable member 30 in the width direction, and to secure a large amount of movement of the movable member 30.

Further, an operation section 31 is provided integrally with the movable member 30, and a second housing recess 14 is formed in the base housing 10 to reciprocally accommodate the movable member 30, and the movable member 30 excludes the operation section 31. The portion is formed to have a thickness that can be accommodated in the first housing recess 14, and the operation unit 30 is exposed on the surface side of the slide cover 20, so that the thickness of the entire conversion mechanism can be suppressed. Since the operation unit 31 is exposed on the surface side of the slide cover 20, the operation of reciprocating the movable member 30 by the operation unit 31 can be easily performed.

The moving position of the movable member 30 is maintained by providing a lock mechanism which also serves as a stopper for restricting the movement of the movable member 30 between the operation portion 31 of the movable member 30 and the slide cover 20. Thus, it is possible to prevent the movable member 30 from being carelessly moved. Thereby, the positioning of the slide cover 20 with respect to the base housing 10 can be ensured.

<Second Embodiment> Next, FIGS.
A second embodiment of the present invention will be described with reference to FIG. 15 is a plan view of the socket, FIG. 16 is a sectional view along the width direction of the socket, and FIG. 17 is a partial sectional side view of the socket. 18 is a plan view of the socket body, FIG. 19 is a sectional view thereof, and FIG. 20 is a side view thereof. 21 to 26
FIG. 3 is a diagram showing a specific configuration of a movable member. In these drawings, the same reference numerals are given to the same components as those in the first embodiment.

The socket 101 for the pin grid array package according to this embodiment is also basically configured in substantially the same manner as the first embodiment. That is, the socket 101 includes a substantially rectangular base housing 10 made of an insulating resin, a substantially rectangular slide cover (sliding member) 20 made of the same insulating resin, which is overlapped on the upper surface side of the base housing 10, and A movable member made of resin that slides the slide cover with respect to the base housing (reciprocates in one direction);

As shown in FIGS. 19 and 20, on both sides in the length direction of the base housing 10, low side portions 11 extending in the length direction of the base housing 10 are formed. A plurality of locking projections 12 are provided at intervals in the length direction. 16 and 1 on both sides of the slide cover 20 in the length direction.
As shown in FIG. 7, a side plate 21 extending downward is provided, and a projection 22 that engages with the locking projection 12 of the base housing 10 is provided on the inner surface side of the both side plates 21. The projection 22 extends in the length direction of the slide cover 20.
Thereby, the slide cover 20 is slidable within a certain range only in the length direction.

The slide cover 20 is provided with a large number of through holes 23 arranged in a lattice. The lead pins 51 of the PGA package 50 are inserted into these through holes 23. The base housing 10 is
It has a housing recess 13 and a second housing recess 14. Terminal receiving cavities 15 are formed in the first receiving recess 13 in a lattice shape corresponding to the through holes 23, and terminals 40 are mounted in the respective terminal receiving cavities 15. In addition,
The terminal 40 is provided with a solder tail 45 that allows for surface soldering to a mounting board such as a printed circuit board. This solder tail 45
Project downward from the lower surface of the base housing 10.

The movable member 130 is formed in a substantially rectangular plate shape in a plane, and is accommodated in the second accommodating recess 14 of the base housing 10 so as to be capable of reciprocating in the width direction of the base housing 10. That is, the second housing recess 14 is formed as a flat rectangular recess having a length substantially covering the entire length of the base housing 10 in the width direction. On the other hand, the length of the movable member 130 is about half of the length of the second housing recess 14. Therefore, the movable member 130 is guided by the second housing recess 14 and can reciprocate with a stroke of about half the entire length of the second housing recess 14. The movable member 130 is integrally provided with an operation unit 131 for reciprocating by applying a force with a finger or the like.

In this embodiment, in particular, the movable member 1
The 30 operation units 131 are devised. The operation unit 31 according to the first embodiment is substantially rectangular in a plane, is formed to be long in the moving direction of the movable member 30, and has fine irregularities on its surface for preventing slippage. On the other hand, in the present embodiment, a pair of small and three-dimensional operation units 131 are arranged at intervals in the longitudinal direction of the main body 132 of the movable member 130. The pair of operation units 131 has a shape that can be easily pinched with, for example, a fingertip.

That is, each of the operation sections 131 has a substantially rectangular plane. However, both operation units 131 are connected to the main unit 13.
2 is a rectangle extending in a direction orthogonal to the longitudinal direction. The interval between the two operation units 131 is also set so that a fingertip enters the space. The height h is also sufficiently ensured so that both operation units 131 can be easily pinched with a fingertip. Thereby, it is considered that the manual operation of the movable member 130 using the operation unit 131 can be performed with good operability. The movable member 130 is made of resin. In this example, the pair of operation portions 131 and the main body portion 132 are formed by integral molding. However, both can be fixed with an adhesive or the like as separate members.

A notch 25 extending in the width direction of the slide cover 20 is provided at one end in the length direction of the slide cover 20.
Is provided, and the movable member 13
The entire operation units 131 and half or more of the surface of the main body 132 are exposed to the front surface side of the socket 101. As shown in FIG. 17, in a state where the movable member 130 is assembled, the lower surface contact portion 131 of the operation portion 131 is used in order to achieve smooth operation and stability of the movable member 130.
a is designed to contact the surface 111 of the base housing 10. The lower surface contact portion 131a is lowered by one step.

The movable member 130 is provided with an elongated hole 32 extending in the longitudinal direction of the movable member 130, and the cylindrical convex portion 24 fitted in the elongated hole 32 projects from the inner surface of the slide cover 20. Is provided. The diameter of the columnar convex portion 24 is formed slightly smaller than the diameter d of the long hole 32 in the short axis direction, and care is taken to prevent rattling between the two. The elongated hole 32 is skewed so as to be displaced in the length direction of the slide cover 20 as in the case of the first embodiment. Accordingly, the slide cover 20 can be reciprocated in its length direction (the direction of arrow A) by reciprocating the movable member 130.

A concave portion 124 is provided at the tip of the cylindrical convex portion 24 fitted into the long hole 32. This recess 124
The distal end of a cylindrical positioning pin 161 protruding from the positioning jig 160 for assembling the socket is fitted into the socket. Therefore, the main body 132 of the movable member 130 is provided with a hole 135 through which the positioning pin 161 passes.

<Third Embodiment> FIGS. 27 to 29 are a plan view, a sectional view and a side view showing a third embodiment of the present invention. In these drawings, the same reference numerals are given to the same components as those in the first embodiment.

The socket 201 for the pin grid array package according to this embodiment is also basically configured in substantially the same manner as the first and second embodiments. That is, the socket 201 has a substantially rectangular base housing 10 made of an insulating resin, and a substantially rectangular slide cover (slide member) 2 made of the same insulating resin which is superposed on the upper surface of the base housing 10.
0, and a resin movable member 130 that slides the slide cover 20 with respect to the base housing 10 (reciprocates in one direction).

The socket 201 according to this embodiment is basically different from the socket 1 according to the previous embodiment in that a metal cover 220 is provided on the front side of the slide cover 20. That is, almost the entire surface of the slide cover 20 is covered with the thin metal cover 220. Metal cover 22
A plurality of locking side pieces 221 are provided on both sides of the metal cover 220 in order to temporarily fix the “0” to the slide cover 20. In the illustrated example, two pieces are provided on each of the left and right sides, for a total of four pieces.

The lengths of the locking side pieces 221 are set to extend from the side surfaces of the slide cover 20 to the side surfaces of the base housing 10. Further, the tips of the locking side pieces 221 are bent outward. This is for facilitating the attachment / detachment operation of the metal cover 220.

In the metal cover 220, a plurality of window holes 222 are provided at intervals at positions corresponding to regions where the through holes 23 of the base housing 20 are provided. In the example shown in FIG. 27, these window holes 222 are arranged so as to form a substantially U-shape as a whole. With this arrangement, a flat area 22 is provided at the center of the metal cover 220.
3 are formed. The flat region 223 is used when the socket 201 is transferred by suction in a vacuum in a manufacturing process or a box packing process, for example. When the metal cover 220 does not exist as in the first and second embodiments, the socket cannot be sucked by vacuum.
In this regard, vacuum can be used in the socket of the present embodiment.

The reason why the window hole 222 is provided is that the thermal conductivity is taken into consideration. A plurality of solder tails 45 protrude from the lower surface of the base housing 10.
These solder tails 45 are automatically soldered to a substrate (not shown) using a solder flow technique or the like.
At this time, the window hole 22 has a function of increasing the heat conduction efficiency in the vertical direction using hot air or the like, a function of making the heat conduction uniform, and the like.

In the above-described embodiment, an example is shown in which a long hole forming a pair of guide surfaces is provided on the movable member side, and a convex portion which enters the long hole is provided on the slide cover side. The same effect can be obtained even if are reversed.

[0063]

As described above, according to the present invention, there is provided a socket for a pin grid array package, which can reduce the size of the socket itself and the space required for operating the socket and is effective in reducing the size. be able to. In addition, the present invention has the original effect of the socket for the pin grid array package that allows the slide cover to be moved with a small force in spite of the miniaturization.

Further, according to the present invention, the two operating sections are arranged at an interval in the moving direction of the movable member, and each of the two operating sections is shaped so that it can be easily pinched with, for example, a fingertip. Thereby, the manual operation of the movable member using the operation unit can be performed with good operability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a socket for a pin grid array package according to a first embodiment of the present invention.

FIG. 2 is an overall perspective view of the socket according to the first embodiment of the present invention in an open position.

FIG. 3 is an overall perspective view at a lock position of the socket according to the first embodiment of the present invention.

FIG. 4 is a plan view showing the shape of a long hole of the movable member according to the first embodiment of the present invention.

FIG. 5 is a schematic sectional view taken along line VV of FIG. 3;

FIG. 6 shows a PG in the socket according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing a procedure for mounting the A package.

FIG. 7 shows a PG in the socket according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing a procedure for mounting the A package.

FIG. 8 shows a PG in the socket according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing a procedure for mounting the A package.

FIG. 9 is a plan view of the socket according to the first embodiment of the present invention.

FIG. 10 is a plan view showing a positional relationship between lead pins and terminals of the socket according to the first embodiment of the present invention.

FIG. 11 is a plan view of the socket according to the first embodiment of the present invention.

FIG. 12 is a plan view showing a positional relationship between lead pins and terminals of the socket according to the first embodiment of the present invention.

FIG. 13 is a plan view of the socket according to the first embodiment of the present invention.

FIG. 14 is a plan view showing a positional relationship between lead pins and terminals of the socket according to the first embodiment of the present invention.

FIG. 15 is a plan view of a socket according to a second embodiment of the present invention.

FIG. 16 is a sectional view of a socket according to a second embodiment of the present invention.

FIG. 17 is a side view of the socket according to the second embodiment of the present invention.

FIG. 18 is a plan view of a base housing of a socket according to a second embodiment of the present invention.

FIG. 19 is a sectional view of a base housing of a socket according to a second embodiment of the present invention.

FIG. 20 is a side view of a socket base housing according to a second embodiment of the present invention.

FIG. 21 is a side view of the movable member of the socket according to the second embodiment of the present invention.

FIG. 22 is a side view of the movable member of the socket according to the second embodiment of the present invention.

FIG. 23 is a plan view of a movable member of the socket according to the second embodiment of the present invention.

FIG. 24 is an end view of a movable member of the socket according to the second embodiment of the present invention.

FIG. 25 is a sectional view of a movable member of the socket according to the second embodiment of the present invention.

FIG. 26 is a bottom view of the movable member of the socket according to the second embodiment of the present invention.

FIG. 27 is a plan view of a socket according to a third embodiment of the present invention.

FIG. 28 is a sectional view of a socket according to a third embodiment of the present invention.

FIG. 29 is a side view of the socket according to the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1, 101, 201 Socket 10 Base plate 11 Side surface 12 Locking projection 13 First accommodating recess 14 Second accommodating recess 15 Terminal receiving cavity 20 Slide cover (slide member) 21 Side plate 22 Projection 23 Through hole 24 Convex portion 25 Notch 26, 27, 36, 37 Hook 30, 130 Movable member 31, 131 Operating part 32 Slot 33, 34 Guide surface 40 Terminal 41 Guide piece 42 Contact piece 45 Solder tail 124 Depression 220 Metal cover 221 Locking side piece 222 Window hole 223 Flat area α Displacement

Claims (9)

[Claims] 1. A base housing in which a plurality of terminals electrically contactable with a lead pin of a pin grid array package are provided in a grid pattern, and are slidably disposed along the base housing so that the lead pin can be inserted. A slide member having a plurality of through holes provided in a lattice shape, a first position at which the lead pin can be inserted to a terminal mounting portion in the base housing through the through hole, and a lead pin inserted to the terminal mounting portion. Slide means for reciprocating a slide member between a second position for making electrical contact with the terminal, wherein the slide means is provided with a movable member reciprocally movable along the base housing; An operating unit for applying a force for reciprocating the movable member, and the sliding member for reciprocating the movable member. And a conversion mechanism for converting the reciprocating movement, a pin grid array package socket. 2. The socket for a pin grid array package according to claim 1, wherein said conversion mechanism is set such that a reciprocating movement amount of said movable member is larger than a reciprocating movement amount of said slide member. 3. The conversion mechanism includes: a pair of parallel guide surfaces provided on the movable member; and a projection projecting from the slide member and entering between the pair of guide surfaces. The socket for a pin grid array package according to claim 1, wherein the guide surface extends in a direction intersecting a moving direction of the slide member. 4. The conversion mechanism includes: a pair of parallel guide surfaces provided on the slide member; and a projection projecting from the movable member and entering between the pair of guide surfaces. The socket for a pin grid array package according to claim 1, wherein the guide surface extends in a direction intersecting a moving direction of the slide member. 5. The pair of guide surfaces are formed by opposing wall portions of a long hole provided in the movable member or the slide member, and a moving direction of the movable member and a moving direction of the slide member are substantially equal. The socket for a pin grid array package according to claim 3, wherein the socket intersects at right angles. 6. The operating unit is provided integrally with the movable member, and a housing recess is formed in the base housing for reciprocatingly housing the movable member, and the movable member has a portion excluding the operating unit. The socket for a pin grid array package according to any one of claims 1 to 5, wherein the socket is formed to have a thickness that can be accommodated in the accommodation recess, and the operation unit is exposed on a surface side of the slide member. 7. The pin grid according to claim 1, wherein a lock mechanism serving also as a stopper for restricting movement of the movable member is provided between the operation portion of the movable member and the slide member. Socket for array package. 8. The socket for a pin grid array package according to claim 1, wherein said operating section is constituted by two operating sections arranged at an interval in a moving direction of said movable member. . 9. The pin grid according to claim 8, wherein the two operation sections are set at an interval where a fingertip can enter between the operation sections, and have a shape that allows each of the operation sections to be pinched by a fingertip. Socket for array package.