Test socket

Abstract

The present invention relates to a test socket, and more specifically, to a test socket in which ground contacts provided in the test socket are connected to each other through a connector member, thereby reducing insertion loss and improving signal transmission performance.

Description

Technology Field

[0001] The present invention relates to a test socket, and more specifically, to a test socket in which ground contacts provided in the test socket are connected to each other through a connector member, thereby reducing insertion loss and improving signal transmission performance. Background Technology

[0002] After undergoing the manufacturing process, semiconductor devices are tested to determine their electrical performance. The performance test is conducted by inserting a test socket, formed to make electrical contact with the device's terminals, between the semiconductor device and the test circuit board.

[0003] During the testing process of such semiconductor devices, it is necessary to ensure that the signal transmission performance of the test socket is sufficiently secured.

[0004] For example, in semiconductor devices such as SSDs, as the performance of the SSD increases, the signal transmission performance of the test socket needs to be further improved.

[0005] Therefore, it is necessary to develop a test socket with improved signal transmission performance. Prior art literature

[0006] Published Patent No. 10-2020-0084582 The problem to be solved

[0007] The objective of the present invention is to provide a test socket that can solve the above problem by connecting ground contacts to each other through a connector member, thereby reducing insertion loss and improving signal transmission performance. means of solving the problem

[0008] To achieve the above-mentioned objective, a test socket according to the present invention comprises: a base member; a plurality of contact members mounted on the base member; and a plurality of connector members mounted on the base member; wherein the base member comprises a device mounting slot for mounting a device to be tested, a plurality of contact mounting slots that are open in the direction in which the device mounting slot is located, and a connector mounting slot that is open in the direction in which the contact mounting slot is located and in which the connector member is mounted; wherein the contact member comprises a plurality of first contact members and a plurality of second contact members, and the connector member electrically connects at least one of the second contact members with another of the second contact members.

[0009] According to one embodiment, a plurality of contact mounting slots are arranged in parallel in a first direction, and the connector mounting slot includes a first mounting line extending along the first direction, and a second mounting line located between each of the contact mounting slots and the first mounting line and communicating between the first mounting line and the contact mounting slot, and the connector member includes a connector body and a plurality of connector arms connected to the connector body, and when the contact member and the connector member are mounted in the contact mounting slot and the connector mounting slot, respectively, the connector body is located in the first mounting line and the connector arm is located in the second mounting line, and the plurality of connector lines contact the contact member located in the contact mounting slot.

[0010] According to one embodiment, when the contact member and the connector member are mounted in the contact mounting slot and the connector mounting slot, respectively, at least one portion of the connector line protrudes into the contact mounting slot.

[0011] According to one embodiment, the connector body is configured as an upright plate, and the connector arm is configured as a line inclined upward with a predetermined angle of inclination.

[0012] According to one embodiment, the contact mounting slots are symmetrically formed on both outer sides of the device mounting slot, centered around one of the device mounting slots, and the connector mounting slots are formed on the outer sides of each of the contact mounting slots.

[0013] According to one embodiment, the contact mounting slot is opened downward of the base member.

[0014] According to one embodiment, the connector mounting slot is formed on the bottom surface of the base member and is configured as a groove that has a predetermined depth in the upward direction and opens in the downward direction.

[0015] According to one embodiment, a partition wall is provided between the contact mounting slots to partition the contact mounting slots, the partition wall is provided with a contact support groove, and the contact member is provided with a support projection inserted into the contact support groove. Effects of the invention

[0016] In the test socket according to an embodiment of the present invention, the ground contacts are connected to each other through a connector member, thereby reducing insertion loss and improving signal transmission performance. Brief explanation of the drawing

[0017] FIGS. 1 and 2 are drawings showing the external appearance of a test socket according to an embodiment of the present invention from different directions, and FIG. 3 is an exploded view of a test socket according to an embodiment of the present invention. FIG. 4 is a drawing showing a base member of a test socket according to an embodiment of the present invention, and FIG. 5 is a drawing showing a cross-section of DD of FIG. 4. Figures 6 and 7 are cross-sectional views showing an enlarged view of the connector mounting slot and its surroundings. FIG. 8 is a drawing showing a contact member of a test socket according to one embodiment of the present invention. FIGS. 9 and 10 are drawings showing the structure of a connector member of a test socket according to an embodiment of the present invention. FIG. 11 is a drawing showing a connector member mounted on a base member. Figure 12 (a) shows the mounting configuration of a connector arm, and Figure 12 (b) shows the mounting configuration of a short arm. FIG. 13 is a drawing showing a contact member being mounted on a base member, where (a) shows the mounting process and (b) shows the mounted state. Additionally, FIG. 14 shows the contact between the contact member and the connector arm of the connector member. FIG. 15 is a drawing showing a contact member being mounted on a base member, where (a) shows the mounting process and (b) shows the mounted state. Additionally, FIG. 16 shows the gap between the contact member and the short arm of the connector member. Figure 17 shows the contact relationship between the contact member and the connector member. Figure 18 (a) shows the insertion loss of a comparative example (a test socket without a connector member), and Figure 18 (b) shows the experimental results of the insertion loss of an example (a test socket with a connector member). Specific details for implementing the invention

[0018] Hereinafter, preferred embodiments according to the present invention will be described with reference to the attached drawings. These embodiments are not intended to be limiting.

[0020] FIGS. 1 and 2 are drawings showing the external appearance of a test socket (1) according to an embodiment of the present invention from different directions, and FIG. 3 is an exploded view of a test socket (1) according to an embodiment of the present invention.

[0021] The directions "front and back," "left and right," and "up and down" below are described based on the X, Y, and Z axes of FIG. 1, respectively.

[0022] A test socket (1) according to an embodiment of the present invention may include a base member (100), a contact member (200), and a connector member (300).

[0024] <Bass Absence(100)(100)>

[0025] FIG. 4 is a drawing showing a base member (100) of a test socket (1) according to one embodiment of the present invention, and FIG. 5 is a drawing showing a cross-section of FIG. 4.

[0026] The base member (100) includes a base body (110), a device mounting slot (120), a contact mounting slot (130), a partition wall (140), and a connector mounting slot (150).

[0027] The base body (110) constitutes the body of the base member (100). The base body (110) may be made of a non-conductive material.

[0028] The base body (110) may include a bottom base (112) constituting the lower part, and a top base (114) provided on the upper part of the bottom base (112) and constituting the upper part of the base body (110).

[0029] The device mounting slot (120) is located at the center of the base body (110), extends long in the front-rear direction, and is a groove having a predetermined depth that can be opened upward. Specifically, the device mounting slot (120) can be formed in the top base (114). A device to be tested can be mounted in the device mounting slot (120).

[0030] The contact mounting slot (130) may be symmetrically positioned on the left and right sides of the device mounting slot (120). The contact mounting slot (130) may be configured as a hole penetrating at least a portion of the base body (110). A plurality of contact mounting slots (130) may be provided, and a plurality of contact mounting slots (130) may be arranged in an array along the front-rear direction of the base member (100). That is, if the front-rear direction (X-axis direction) of the base member (100) is referred to as the first direction, it can be explained that the plurality of contact mounting slots (130) are arranged in parallel along the first direction.

[0031] The contact mounting slot (130) may include a first open portion (132) and a second open portion (134).

[0032] The first open portion (132) may be an open portion that opens the contact mounting slot (130) in the direction where the device mounting slot (120) is located. The first open portion (132) is formed on the top base (114) and may be formed on both sides of the device mounting slot (120).

[0033] The second open portion (134) is formed at the lower part of the contact mounting slot (130) and may be an open portion that opens the contact mounting slot (130) in a horizontal and downward direction. The second open portion (134) may be formed on the bottom surface of the bottom base (112).

[0034] The partition wall (140) is configured as a partition wall positioned between each of the contact mounting slots (130) and partitioning the contact mounting slots (130).

[0035] The partition wall (140) may be provided with a contact support groove (142) at the bottom. The contact support groove (142) may be a groove formed in the partition wall (140) and recessed in the front-rear direction.

[0036] FIGS. 6 and 7 are magnified cross-sectional views showing the connector mounting slot (150) and its surroundings, and are magnified views of part A of FIG. 5.

[0037] A connector mounting slot (150) may be formed on the outer side of a contact mounting slot (130). Specifically, a connector mounting slot (150) may be formed on the left outer side of a contact mounting slot (130) formed on the left side of a device mounting slot (120). Additionally, a connector mounting slot (150) may be formed on the right outer side of a contact mounting slot (130) formed on the right side of a device mounting slot (120). According to an embodiment, connector mounting slots (150) are formed on the outer sides of both sides of a device mounting slot (120), and a contact mounting slot (130) may be located between the device mounting slot (120) and the connector mounting slot (150).

[0038] The connector mounting slot (150) may be composed of a recessed groove formed in the base body (110). Additionally, at least one part of the connector mounting slot (150) may be open in the direction where the contact mounting slot (130) is located.

[0039] The connector mounting slot (150) may include a first mounting line (152) and a second mounting line (154).

[0040] The first mounting line (152) may be a groove line that extends along the first direction. That is, the first mounting line (152) may be a groove line that extends in the front-rear direction and is recessed upward.

[0041] The second mounting line (154) may be a groove extending from the first mounting line (152). Multiple second mounting lines (154) may be provided. Each second mounting line (154) is located between the contact mounting slot (130) and the first mounting line (152). The second mounting line (154) may be a connecting passage that communicates between the first mounting line (152) and the contact mounting slot (130). That is, the second mounting line (154) may be a groove line that is recessed upward and connects between the first mounting line (152) and the contact mounting slot (130). Additionally, the second mounting line (154) may be open on both sides to communicate between the contact mounting slot (130) and the first mounting line (152).

[0043] <Contact Absence (200)>

[0044] A plurality of contact members (200) are provided, and the plurality of contact members (200) can be arranged along a first direction to form a predetermined contact array.

[0045] FIG. 8 is a drawing showing a contact member (200) of a test socket (1) according to one embodiment of the present invention.

[0046] The contact member (200) has a top line (210), a middle line (220), and a bottom line (230).

[0047] The top line (210) constitutes the upper portion of the contact member (200). The top line (210) may have a device contact portion (212). The device contact portion (212) may be a portion that is bent or curved at a predetermined angle and protrudes in a horizontal direction.

[0048] The middle line (220) forms the middle part of the contact member (200). The middle line (220) can be extended in the vertical direction.

[0049] The middle line (220) may be provided with a connector contact portion (222). The connector contact portion (222) may be provided on one side of the middle line (220). Specifically, when the contact member (200) is mounted on the base member (100), the connector contact portion (222) may be located on the outside of the middle line (220).

[0050] The middle line (220) may be provided with a support projection (224). The support projection (224) may be a predetermined projection that protrudes in the forward and backward directions of the middle line (220).

[0051] The bottom line (230) constitutes the lower portion of the contact member (200). The bottom line (230) can be bent from the lower part of the middle line (220) and extended horizontally with an inclination of a predetermined angle.

[0053] <Connector missing (300)>

[0054] FIGS. 9 and 10 are drawings showing the structure of a connector member (300) of a test socket (1) according to one embodiment of the present invention.

[0055] The connector member (300) may include a connector body (310) and a plurality of connector arms (320) connected to the connector body (310).

[0056] The connector body (310) may be configured as an upright plate. Specifically, the connector body (310) may be a plate-shaped portion that extends along a first direction and has a predetermined thickness and height.

[0057] The connector arm (320) may be formed in continuity with the connector body (310) and may be formed with a predetermined protruding line that protrudes to the side of the connector body (310). There may be multiple connector arms (320), and multiple connector arms (320) may be spaced apart by a predetermined distance in the front-rear direction.

[0058] Each of the above connector arms (320) may be configured with a line inclined upward and having a predetermined angle of inclination. The connector arms (320) may have a configuration that can elastically restore to maintain their shape.

[0059] Meanwhile, according to an embodiment, a short arm (330) extending with a shorter length than the connector arm (320) may be provided between the connector arms (320). The short arm (330) is a component distinct from the connector arm (320) and is a part having an extension length smaller than the extension length of the connector arm (320).

[0060] For example, as shown in FIG. 10, the connector arm (320) in the left-right direction may have an extension width of L1, and the short arm (330) may have an extension width of L2. L1 > L2.

[0061] The short arm (330) is not an essential component and may not be provided depending on the embodiment. For example, according to an embodiment, during the manufacturing process of the connector member (300), the connector member (300) may have a configuration without the short arm (330) from the beginning. According to another example, during the manufacturing process, the connector member (300) may have only the connector arm (320), and it is possible for some of the connector arms (320) to be processed into the short arm (330). That is, the position and number of connector arms (320) can be appropriately selected during the manufacturing process.

[0063] <Inter-absence Combination Relationship and Effects>

[0064] The following describes the connection relationships of each component and the resulting effects. However, the order of connection of each component is not limited by the order of the following description.

[0065] FIG. 11 is a drawing showing a connector member (300) mounted on a base member (100). For convenience of verification, FIG. 11 and 12 are shown in cross-section.

[0066] The connector member (300) can be mounted within the connector mounting slot (150) of the base member (100). Specifically, the connector mounting slot (150) of the base member (100) is open downward, and the connector member (300) can be mounted upward from the bottom of the base member (100) as shown by arrow A.

[0067] Figure 12 (a) shows the mounting form of the connector arm (320), and Figure 12 (b) shows the mounting form of the short arm (330).

[0068] The connector body (310) of the connector member (300) is inserted into the first mounting line (152), and the connector arm (320) is inserted into the second mounting line (154). Additionally, the short arm (330) is also inserted into the second mounting line (154).

[0069] The connector arm (320) may be located within the second mounting line (154), and according to the embodiment, at least one part may protrude into the contact mounting slot (130).

[0070] Meanwhile, the short arm (330) is located within the second mounting line (154), but can be located at a position spaced apart from the contact mounting slot (130) by a predetermined distance.

[0071] FIG. 13 is a drawing showing a contact member (200) being mounted on a base member (100), where (a) shows the mounting process and (b) shows the mounted state. Additionally, FIG. 14 shows contact between the contact member (200) and the connector arm (320) of the connector member (300), where FIG. 14 (b) is an enlarged view of part A of FIG. 14 (a).

[0072] The contact member (200) can be mounted within the contact mounting slot (130) of the base member (100). Specifically, the contact mounting slot (130) of the base member (100) is open downward, and the contact member (200) can be mounted upward from the bottom of the base member (100) as indicated by arrow A in FIG. 13. At this time, the support projection (224) of the contact member (200) is inserted into the contact support groove (142), and the contact member (200) can be fitted into the base member (100).

[0073] The device contact portion (212) of the top line (210) of the contact member (200) protrudes into the device mounting slot (120). Therefore, when the device to be tested is mounted into the device mounting slot (120), the terminal of the device to be tested can come into contact with the contact member (200) through the device contact portion (212).

[0074] In addition, the bottom line (230) of the contact member (200) extends to the lower part of the base member (100). Accordingly, when the test socket (1) is mounted on a predetermined test board, the contact member (200) can contact the board terminal of the test board through the bottom line (230).

[0075] Accordingly, the device terminal of the device under test and the substrate terminal of the test substrate can be energized through the contact member (200).

[0076] At this time, among the contact members (200), the contact member (200) mounted within the contact mounting slot (130) corresponding to the position of the connector arm (320) can have at least one part in contact with the connector arm (320). Specifically, a current-conducting point (T) can be formed by the connector contact portion (222) of the contact member (200) and the end of the connector arm (320) coming into close contact with each other. Accordingly, current conduction can be achieved between the contact member (200) and the connector member (300). At this time, the connector arm (320) has a configuration that allows it to elastically restore its shape so as to maintain its shape, thereby allowing the contact member (200) and the connector member (300) to come into close contact with each other.

[0077] FIG. 15 is a drawing showing a contact member (200) being mounted on a base member (100), where (a) shows the mounting process and (b) shows the mounted state. Additionally, FIG. 16 shows the spacing between the contact member (200) and the short arm (330) of the connector member (300), where FIG. 16 (b) is an enlarged view of part A of FIG. 16 (a).

[0078] As previously explained, the contact member (200) can be mounted within the contact mounting slot (130) of the base member (100).

[0079] At this time, among the contact members (200), the contact member (200) mounted in the contact mounting slot (130) that does not correspond to the position of the connector arm (320) (i.e., the contact member (200) mounted in the contact mounting slot (130) corresponding to the position of the short arm (330)) is spaced apart without at least one part contacting the connector arm (320). That is, the current point (T) formed by the connector contact portion (222) of the contact member (200) and the end of the connector arm (320) coming into close contact with each other, as previously described, is not formed. Therefore, current flow between the contact member (200) and the connector member (300) does not occur.

[0080] FIG. 17 shows the contact relationship between the contact member (200) and the connector member (300).

[0081] Referring to FIG. 17, the contact and current flow between the contact member (200) and the connector member (300) are described as follows.

[0082] The connector member (300) includes two or more connector arms (320). Some of the contact members (200A, 200C) among the multiple contact members (200) can come into contact with the connector member (300) and conduct electricity by facing each other with the connector arms (320) of the connector member (300). In addition, some of the contact members (200B) do not come into contact with the connector member (300) by facing each other with the short arm (330) of the connector member (300). Therefore, a conduction path mediated by the connector arm (320) can be formed between some of the contact members (200A, 200C) that come into contact with the connector member (300) through the connector arm (320). Meanwhile, other contact members (200B) that do not come into contact with the connector member (300) do not have electrical current with the connector arm (320).

[0083] The contact members (200A, 200C) that are connected to the connector member (300) can function as ground contacts that perform grounding. Meanwhile, the contact member (200B) that is not connected to the connector member (300) can function as a signal contact that transmits a signal.

[0084] Figure 18 (a) shows the insertion loss of a comparative example (a test socket (1) without a connector member (300)), and Figure 18 (b) shows the experimental results of the insertion loss of an embodiment (a test socket (1) with a connector member (300)).

[0085] In the case of the comparative example, the ground contacts are configured to be individually energized. The test socket (1) according to the embodiment is configured such that, in addition to the signal contact for signal transmission, the ground contacts are all connected through the connector member (300).

[0086] As shown in Fig. 18, it was confirmed that when ground contacts are connected to each other, insertion loss is reduced and signal transmission performance is improved.

[0087] In the test socket (1) according to an embodiment of the present invention, the ground contacts are connected to each other through the connector member (300), thereby reducing insertion loss and improving signal transmission performance.

[0089] Although preferred embodiments have been illustrated and described above, the present invention is not limited to the specific embodiments described above. It is understood that various modifications can be made by those skilled in the art without departing from the essence of the invention as claimed in the claims, and such modifications should not be understood individually from the technical spirit or perspective of the present invention. Explanation of the symbols

[0090] 1: Test socket 100: Base missing 110: Base body 112: Bottom Base 114: Top Base 120: Device mounting slot 130: Contact mounting slot 132: 1st Open Section 134: 2nd Open Section 140: Compartment bulkhead 142: Contact support groove 150: Connector mounting slot 152: First Director Line 154: Second Director Line 200: No contact 210: Top lane 212: Device contact part 220: Middle line 222: Connector contact part 224: Support projection 230: Bottom line 300: Connector missing 310: Connector body 320: Connector arm 330: Short Arm

Claims

Claim 1 A test socket disposed between a device to be tested and a test board to electrically connect a terminal of the device to be tested and a terminal of the test board, comprising: a base member; a plurality of contact members mounted on the base member; and a plurality of connector members mounted on the base member; wherein the base member comprises a device mounting slot in which the device to be tested is mounted, a plurality of contact mounting slots open in the direction in which the device mounting slot is located, and a connector mounting slot open in the direction in which the contact mounting slot is located and in which the connector member is mounted; wherein the contact member comprises a plurality of contact members and a plurality of second contact members, and the connector member electrically connects at least one second contact member and at least one other second contact member. Claim 2 In claim 1, a plurality of the contact mounting slots are arranged in parallel in a first direction, and the connector mounting slot includes a first mounting line extending along the first direction, and a second mounting line located between each of the contact mounting slots and the first mounting line and communicating between the first mounting line and the contact mounting slot, and the connector member includes a connector body and a plurality of connector arms connected to the connector body, and when the contact member and the connector member are mounted in the contact mounting slot and the connector mounting slot, respectively, the connector body is located in the first mounting line and the connector arms are located in the second mounting line, and the plurality of connector lines are test sockets that contact the contact member located in the contact mounting slot. Claim 3 In paragraph 2, when the contact member and the connector member are mounted in the contact mounting slot and the connector mounting slot, respectively, the connector line is a test socket in which at least one part protrudes into the contact mounting slot. Claim 4 In paragraph 2, the connector body is configured as an upright plate, and the connector arm is configured as an upwardly inclined line having a predetermined angle of inclination, forming a test socket. Claim 5 In claim 1, the contact mounting slots are symmetrically formed on both outer sides of the device mounting slot, centered around one of the device mounting slots, and the connector mounting slots are test sockets formed on the outer sides of each of the contact mounting slots. Claim 6 In claim 1, the contact mounting slot is a test socket that opens downward from the base member. Claim 7 In claim 1, the connector mounting slot is a test socket formed on the bottom surface of the base member, having a predetermined depth in the upward direction and opening in the downward direction. Claim 8 In claim 1, a partition wall is provided between the contact mounting slots to partition the contact mounting slots, the partition wall is provided with a contact support groove, and the contact member is provided with a support projection inserted into the contact support groove.

Images