JP2019139849A - socket - Google Patents

Abstract

To reduce the number of components configuring a socket to suppress cost, and to form a thin cover of the socket and thereby perform a test for an inspected member appropriately.SOLUTION: A socket 100 comprises: a main body part 10 that houses an inspected member; a plate 21 that sandwiches the inspected member together with the main body part 10; a stopper 30 attached to the plate 21 rotatably and configured to be hooked to the main body part 10; and a compression spring 40 that is sandwiched between the stopper 30 and the plate 21 and energizes the plate 21 toward the inspected member.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a socket for electrically connecting a member to be inspected and a wiring board.

  Conventionally, when a test of a member to be inspected such as a bare chip (for example, a burn-in test) is performed, a socket is used to electrically connect the member to be inspected and a wiring board.

  Patent Document 1 discloses a socket used for various tests of a member to be inspected. FIG. 6 is a schematic diagram illustrating the socket disclosed in Patent Document 1. In FIG. In FIG. 6, the socket will be described with the direction indicated by the arrow being upward or downward for convenience.

  The socket 200 includes a socket body 110 and a cover 120 that presses a member 170 to be inspected accommodated in the socket body 110 downward. The cover 120 includes a cover main body 121, a stopper 130, a cover pad 125, and a compression spring 140. When the cover 120 is attached to the socket main body 110, the cover pad 125 presses the member 170 to be inspected. ing.

  Further, the cover body 121 and the cover pad 125 have through holes (not shown) penetrating in the vertical direction. When the member 170 to be inspected is an image sensor such as a CCD image sensor, an image of a subject is connected to the image sensor. A lens to be imaged is disposed near the through hole.

JP 2017-84560 A

  Generally, as the number of parts constituting the socket 200 increases, the cost tends to increase. Therefore, it is preferable that the number of parts constituting the socket 200 is small. However, in the conventional socket 200, the cover 120 is composed of many parts such as the cover main body 121, the stopper 130, the cover pad 125, and the compression spring 140. Therefore, there is a concern that the cost of the socket 200 increases.

  Further, when the cover 120 is configured such that the compression spring 140 is sandwiched between the cover main body 121 and the cover pad 125, the thickness of the cover 120 increases, and as a result, the lens cannot be brought close to the member 170 to be inspected. Then, there is a possibility that the subject image cannot be formed on the image sensor and the test of the member to be inspected cannot be performed properly.

  It is an object of the present invention to reduce the number of parts constituting a socket to reduce the cost of the socket, and to make it possible to appropriately test a member to be inspected by forming a socket cover thinly.

  In order to achieve the above object, a socket according to the present invention is provided with a main body that accommodates a member to be inspected, a plate that sandwiches the member to be inspected together with the main body, and a main body that is attached so as to rotate relative to the plate And a compression spring that is sandwiched between the stopper and the plate and biases the plate toward the member to be inspected.

  According to the present invention, it is possible to reduce the number of parts constituting the socket and reduce the cost of the socket, and to appropriately test the member to be inspected by forming the socket cover thinly.

The perspective view which shows an example of the socket of this invention The front view which shows an example of the socket of this invention The top view which shows an example of the socket of this invention AA arrow sectional view in FIG. The figure explaining an example of the probe pin of this invention Schematic diagram explaining a conventional socket

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the same component. Further, the drawings schematically show each component for easy understanding. In this specification, the directions indicated by the arrows in FIGS.

  FIG. 1 is a perspective view showing an example of the socket of the present invention. FIG. 2 is a front view showing an example of the socket of the present invention. FIG. 3 is a plan view showing an example of the socket of the present invention. 4 is a cross-sectional view taken along arrow AA in FIG.

  The socket 100 is a device that accommodates a member to be inspected (not shown) and electrically connects the accommodated member to be inspected to the wiring board 60 attached to the lower side of the socket 100. The member to be inspected is an electronic component such as an IC package or an image sensor.

  The socket 100 includes a socket body 10, a cover 20, and probe pins 45.

  The socket body 10 is a member made of an insulating material such as a synthetic resin and having an accommodating portion 14 that accommodates a member to be inspected. The socket body 10 includes a frame body 11, and an upper plate 12 and a lower plate 13 that sandwich the frame body 11 from above and below.

  The frame 11 is a frame-shaped member having a rectangular opening at the center. A pair of side surfaces arranged in parallel among the side surfaces facing the outside of the frame body 11 are formed with claw portions 11a protruding outward. A claw portion 33 of a stopper 30, which will be described later, is hooked on the claw portion 11a of the frame body 11.

  The upper plate 12 is a plate-like member formed in a rectangular shape in plan view, and the accommodating portion 14 described above is formed on the upper surface of the upper plate 12. The upper plate 12 has a rectangular through hole penetrating in the vertical direction at the center. A base member 50 described later is inserted into the rectangular through hole.

  Further, the upper plate 12 has a plurality of small-diameter first through holes 12a penetrating in the vertical direction. A probe pin 45 is inserted into the first through hole 12a.

  The lower plate 13 is a plate-like member formed in a rectangular shape in plan view. The lower plate 13 has a rectangular through hole penetrating in the vertical direction at the center. In a state where the upper plate 12 and the lower plate 13 are attached to the frame body 11, the rectangular through hole of the lower plate 13 faces the rectangular through hole of the upper plate 12 from above to the lower plate 13. Arranged at the projected position. A base member 50 described later is inserted into the rectangular through hole of the lower plate 13.

  Further, the lower plate 13 has a plurality of second through holes 13a having small diameters penetrating in the vertical direction at positions where the first through holes 12a are projected from above toward the lower plate 13. Similar to the first through hole 12a, the probe pin 45 is inserted into the second through hole 13a.

  The cover 20 is a member that covers the socket body 10 from above and presses the member to be inspected toward the socket body 10. The cover 20 includes a cover main body 21, a stopper 30, and a compression spring 40.

  The cover main body 21 is a plate formed in a rectangular shape in plan view, and has a rectangular through hole 20a penetrating in the vertical direction near the center.

  When the member to be inspected is, for example, an image sensor, a lens is disposed in the vicinity of the through hole 20a formed in the cover body 21 in order to form an image of the subject on the member to be inspected.

  A contact portion 25 that contacts the upper surface of the member to be inspected when the cover main body 21 is attached to the socket main body 10 is provided on the lower surface of the cover main body 21.

  In addition, the pair of side surfaces of the cover body 21 facing each other are provided with protruding portions 22 that extend outward. Two protrusions 22 are provided for one side surface, and these two protrusions 22 are arranged at a predetermined interval from each other. Each protrusion 22 has an attachment hole 23 to which the stopper 30 is attached. The attachment hole 23 is a long hole having a linear portion extending in the vertical direction. In other words, the attachment hole 23 is a long hole extending in the direction in which the cover body 21 is urged.

  The cover main body 21 has a compression spring mounting portion 24 for mounting the compression spring 40 in an area between the two protrusions 22, which is an edge portion of the cover main body 21. A plurality of compression springs 40 are placed on the compression spring placement portion 24, and the compression spring placement portion 24 sandwiches the compression spring 40 together with a stopper 30 described below.

  The stopper 30 is a member that presses the cover body 21 toward the socket body 10 and fixes the cover body 21 to the socket body 10.

  The stopper 30 includes a compression spring pressing portion 31 that sandwiches the compression spring 40 between the compression spring mounting portion 24 provided on the cover body 21 and the side surface of the socket body 10 in a state where the stopper 30 is attached to the cover body 21. And the claw portion 33 that is provided at the tip of the extension portion 32 and hooks on the claw portion 11a of the socket main body 10 and the cover main body 21 are attached to and detached from the socket main body 10. And an operation unit 34.

  Further, the stopper 30 is formed with a through hole extending in the horizontal direction along a crossing region where the compression spring pressing portion 31, the extending portion 32, and the operation portion 34 intersect. A shaft member 35 is inserted into the through hole of the stopper 30. In a state where the shaft member 35 is inserted into the through hole of the stopper 30, both end portions of the shaft member 35 protrude from both ends of the through hole.

  The stopper 30 is disposed between a pair of protrusions 22 provided on the cover 20, and both end portions of the shaft member 35 are fitted into attachment holes 23 formed in the protrusions 22. As described above, since the mounting hole 23 formed in the protruding portion 22 is a long hole having a linear portion extending in the vertical direction, the stopper 30 is movable in the vertical direction with respect to the cover body 21 and has a shaft. It is attached to the cover body 21 so as to be rotatable around the member 35.

  The compression spring 40 is sandwiched between the compression spring placement portion 24 of the cover body 21 and the compression spring pressing portion 31 of the stopper 30. The compression spring 40 is a biasing member that biases the cover body 21 toward the socket body 10 when the cover body 21 is attached to the socket body 10. The compression spring 40 is, for example, a coil spring.

  The probe pin 45 is a member that electrically connects the member to be inspected accommodated in the accommodating portion 14 of the socket body 10 and the wiring board 60 attached to the lower side of the socket body 10. FIG. 5 is a diagram for explaining an example of the probe pin 45 of the present invention.

  The probe pin 45 is formed of, for example, a conductive metal material. The probe pin 45 has a barrel 46, a compression spring 47, and a plunger 48.

  The barrel 46 accommodates the compression spring 47 and guides the plunger 48. The cylindrical portion 46b is formed with a diameter smaller than the outer diameter of the cylindrical portion 46a and has a contact portion 46c that contacts the member to be inspected at the tip. With.

  The plunger 48 includes a cylindrical portion 48 a that houses the compression spring 47 and a columnar portion 48 b that has a contact portion 48 c whose lower end contacts the wiring board 60. The cylindrical portion 48 a has a large diameter portion 48 a 1 that is guided by the inner peripheral surface of the cylindrical portion 46 a of the barrel 46.

  The compression spring 47 is a biasing member that is accommodated in the cylindrical portion 46a of the barrel 46 and the cylindrical portion 48a of the plunger 48, and biases the contact portion 46c of the barrel 46 and the contact portion 48c of the plunger 48 away from each other.

  In a state where the member to be inspected is not accommodated in the accommodating portion 14, the cylindrical portion 46 b of the barrel 46 slightly protrudes from the accommodating portion 14. At this time, the contact portion 48 c of the plunger 48 slightly protrudes from the lower surface of the lower plate 13 constituting the socket body 10, and is in contact with the wiring board 60 disposed on the lower side of the socket body 10.

  When the member to be inspected is accommodated in the accommodating portion 14, the barrel 46 is pressed downward by the terminal provided on the lower side of the member to be inspected, and moves downward against the repulsive force of the compression spring 47. . As a result, the barrel 46 is biased toward the member to be inspected by the compression spring 47. The plunger 48 is biased toward the wiring board 60 by the repulsive force of the compression spring 47. Therefore, the probe pin 45 reliably contacts the terminal of the member to be inspected and the wiring board 60.

  Returning to the description of FIGS. A base member 50 is attached to the socket 100 from below. The base member 50 is a plate-like member having a rectangular protrusion 51 on the upper surface. The base member 50 is attached to the socket 100 such that the protrusion 51 is inserted into a through hole formed in the upper plate 12 and a through hole formed in the lower plate 13.

  The upper surface of the protrusion 51 of the base member 50 is disposed so as to be flush with the upper surface of the upper plate 12 when the base member 50 is attached to the socket 100.

  The base member 50 is composed of, for example, a heater block. By configuring the base member 50 with a heater block, the behavior of the member to be inspected in a high temperature atmosphere can be examined in various tests.

  Next, the movement of each part of the socket 100 when the member to be inspected is accommodated in the socket 100 will be described.

  First, in a state where the cover 20 is not attached to the socket body 10, the member to be inspected is housed in the housing portion 14 of the socket body 10.

  As described above, when the member to be inspected is accommodated in the accommodating portion 14, the contact portion 46c of the probe pin 45 contacts a terminal provided on the lower surface of the member to be inspected.

  After the member to be inspected is accommodated in the accommodating portion 14, the cover main body 21 is attached to the socket main body 10. When the cover main body 21 is attached to the socket main body 10, the operation portion 34 of the stopper 30 is operated in a direction in which the compression spring 40 is compressed.

  When the cover main body 21 is pressed toward the socket main body 10 in a state where the operation unit 34 is operated, the upper surface of the member to be inspected is pressed by the contact portion 25 of the cover main body 21. When the operation of the operation part 34 is released in this state, the claw part 33 of the stopper 30 and the claw part 11a of the socket body 10 are hooked, and the cover 20 and the socket body 10 are fixed.

  As described above, the attachment hole 23 formed in the cover body 21 is a long hole having a linear portion extending in the vertical direction. Therefore, in a state where the cover body 21 is fixed to the socket body 10, the cover body 21 is urged by the compression spring 40 and presses the member to be inspected.

  As described above, in the present embodiment, the cover main body 21 directly presses the member to be inspected toward the socket main body 10. Therefore, it is not necessary to provide a member such as a cover pad for pressing the member to be inspected separately from the cover main body 21, and the socket 100 can be configured with a small number of parts. Thereby, the cost of the socket 100 can be suppressed.

  Further, in the present embodiment, it is not necessary to provide a member such as a cover pad that sandwiches the compression spring 40 together with the cover body 21. Therefore, the thickness of the cover 20 can be reduced and the socket 100 can be made compact.

  Further, when the member to be inspected is an image sensor, and an optical element such as a lens is disposed in the vicinity of the through hole 20a of the cover body 21, the optical element such as a lens can be brought closer to the image sensor than before. Therefore, the image sensor can be appropriately tested.

  Furthermore, when testing a member to be inspected, if it is necessary to place a device such as a test auxiliary device in the vicinity of the through hole 20a of the cover main body 21 to be close to the member to be inspected, the device is inspected more than before. It can be brought close to the member.

  In the above-described embodiment, the shaft member 35 is inserted into the through hole formed in the stopper 30, but the stopper 30 and the shaft member 35 may be integrally formed. Thereby, the number of parts constituting the socket 100 can be further reduced.

  In the above-described embodiment, the shaft member 35 is attached to the stopper 30 and the elongated attachment hole 23 is formed in the cover body 21. However, the elongated attachment hole 23 is formed in the stopper 30. It is good also as a structure formed and the shaft member 35 being attached to the cover main body 21. FIG. Even in such a configuration, the stopper 30 is attached to the cover main body 21 so as to be movable in the vertical direction with respect to the cover main body 21 and rotatable around the shaft member 35.

  In the above-described embodiment, the cover 20 and the socket body 10 are fixed by hooking the claw portion 33 of the stopper 30 and the claw portion 11a of the socket body 10 at two locations. However, the configuration for fixing the cover 20 and the socket body 10 is not limited to such a configuration.

  For example, the extending portion 32 of one of the two stoppers 30 and one side surface of the socket body 10 may be connected by a hinge.

  Thereby, since the cover main body 21 and the socket main body 10 are connected via the hinge and one stopper 30, when the cover 20 is put on the socket main body 10, the cover 20 and the socket main body 10 are easily aligned. can do.

  The present invention is widely applicable to sockets for electrically connecting a member to be inspected and a wiring board.

DESCRIPTION OF SYMBOLS 10 Socket main body 11 Frame 11a Claw part 12 Upper plate 12a 1st through-hole 13 Lower plate 13a 2nd through-hole 20 Cover 20a Through-hole 21 Cover main body 22 Projection part 23 Mounting hole 24 Compression spring mounting part 25 Contact Part 30 Stopper 31 Compression spring pressing part 32 Extension part 33 Claw part 34 Operation part 35 Shaft member 40 Compression spring 45 Probe pin 46 Barrel 46a Cylindrical part 46b Cylindrical part 46c Contact part 47 Compression spring 48 Plunger 48a Cylindrical part 48a1 Large diameter part 48b Cylindrical portion 48c Contact portion 50 Base member 51 Protruding portion 60 Wiring board 100 Socket 110 Socket body 120 Cover 121 Cover body 125 Cover pad 130 Stopper 140 Compression spring 200 Socket

Claims (3)

A main body for accommodating the member to be inspected;
A plate sandwiching the member to be inspected together with the main body,
A stopper attached to the plate so as to rotate, and a stopper hooked on the main body,
A compression spring sandwiched between the stopper and the plate and biasing the plate toward the member to be inspected;
Socket with. Either one of the plate and the stopper has a long hole extending in a direction in which the plate is urged,
The socket according to claim 1, wherein one of the plate and the stopper has a shaft inserted into the elongated hole.   The socket according to claim 1, wherein the plate has a through hole extending in a direction in which the plate is urged.

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