Chip burning test seat

Abstract

The utility model discloses a chip burning test seat which comprises a test base, a gland hinged to the edge side of the top of the test base, a chip placing groove formed in the top of the test base, a fixed sleeve connected to the bottom of the gland in a penetrating mode, a pressing block connected to the bottom of the fixed sleeve in a penetrating mode, and an extrusion part arranged on one side of the pressing block and located in an inner cavity of the fixed sleeve. An adjusting part is arranged at the top of the gland and comprises a fixing bolt, the top of the gland is connected with the threaded end of the fixing bolt in a penetrating mode, and a pressing ring is arranged at the threaded end of the fixing bolt and located in an inner cavity of the fixing sleeve; the fixing bolt is inserted into the top of the gland in a threaded mode, a user rotates the fixing bolt, the fixing bolt extrudes the pressing ring in the fixing sleeve, so that the pressing ring moves and extrudes to reduce the moving space of the extrusion part, and therefore the resilience force of the extrusion part with the reduced resilience force to the pressing block is increased; and the situation that the connection between the chip and a pin contact point in the chip placement groove is affected due to insufficient extrusion fixing force of the pressing block on the chip is avoided.

Description

Technical Field

[0001] The utility model relates to the field of chip testing, in particular to a chip burning test socket. Background Art

[0002] A chip burning test socket is a tool used to burn and test packaged chips. The QFN chip burning test socket is suitable for testing the functions of QFN packaged chips. The QFN chip burning test socket is generally composed of a cover plate and a socket. The socket is hinged to the cover plate. The socket is used to place the QFN chip. There are usually some pins or interfaces on the socket for connecting the burner or test equipment. The cover plate is used to fix the position of the QFN chip. The existing cover plate generally uses a compression spring to drive the pressure block to squeeze and fix the chip. However, after long-term use, the compression spring will fatigue, and its ability to fix the chip will deteriorate, affecting the connection between the chip and the contacts. In order to solve this problem, a new type of chip burning test socket is needed. Utility Model Content

[0003] The purpose of the utility model is to provide a chip burning test socket to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a chip burning test socket, comprising a test base, a pressure cover is hinged on the top side of the test base, a chip placement groove is arranged on the top of the test base, a fixed sleeve is inserted and connected to the bottom of the pressure cover, a pressure block is inserted and connected to the bottom of the fixed sleeve, an extrusion part is arranged on one side of the pressure block and located in the inner cavity of the fixed sleeve, an adjustment part for adjusting the rebound force of the extrusion part is arranged on the top of the pressure cover, the adjustment part comprises a fixing bolt, the top of the pressure cover and the threaded end of the fixing bolt are inserted and connected, and a pressure ring is arranged on the threaded end of the fixing bolt and located in the inner cavity of the fixing sleeve.

[0005] Preferably, the extrusion part includes a push plate, one side of the push plate is fixedly connected to an insertion rod, the outer side of the insertion rod is sleeved with a compression spring, the pressure ring is sleeved on the outer side of the insertion rod, the compression spring is arranged on the opposite side of the pressure ring and the push plate, and one end of the insertion rod is inserted and connected to the threaded end of the fixing bolt.

[0006] Preferably, a moving groove for moving the insertion rod is formed at the threaded end of the fixing bolt.

[0007] Preferably, one side of the pressing block is fixedly connected to a limiting plate located in the inner cavity of the fixing sleeve.

[0008] Preferably, a buffer pad is fixedly connected to the other side of the pressing block.

[0009] Preferably, the inner wall of the chip placement groove is symmetrically provided with taking grooves.

[0010] Preferably, a fixing buckle is fixedly connected to the front side of the test base, and a buckle claw is fixedly connected to the front side of the pressure cover.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model has a fixing bolt inserted into the top thread of the pressure cover. The user rotates the fixing bolt, and the rotating fixing bolt squeezes the pressure ring in the fixed sleeve, so that the pressure ring moves, and the squeezing reduces the activity space of the squeezing part, so that the squeezing part with reduced rebound force increases the rebound force on the pressure block, thereby avoiding insufficient squeezing and fixing force of the pressure block on the chip in the chip placement groove, which affects the connection between the chip and the pin contact point in the chip placement groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] Figure 2 It is a top view of the test base of the utility model.

[0015] Figure 3 It is a cross-sectional view of the connection between the fixed sleeve and the gland of the utility model.

[0016] In the figure: 1. test base; 2. pressure cover; 3. fixing buckle; 301, buckle claw; 4. fixing bolt; 401, moving slot; 5. fixing sleeve; 6. pressure ring; 7. insertion rod; 701, push plate; 8. limit plate; 9. pressure block; 901, buffer pad; 10. compression spring; 11. chip placement slot; 111, taking slot. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] The utility model provides Figure 1-3 A chip burning test socket shown in the figure comprises a test base 1, a pressure cover 2 is hingedly connected to the top side of the test base 1, a chip placement groove 11 is arranged on the top of the test base 1, a fixed sleeve 5 is inserted and connected to the bottom of the pressure cover 2, and a pressure block 9 is inserted and connected to the bottom of the fixed sleeve 5;

[0019] It should be noted that the test base 1 and the pressure cover 2 are both made of polypropylene, and have the same working principle as the burning seat of model QFN9X9-64L. The hinge is set at the hinge. The inner wall of the chip placement groove 11 is symmetrically provided with a taking groove 111, and the bottom of the taking groove 111 is inclined to the bottom of the chip placement groove 11, so that the user can take out the tested chip. The bottom of the pressure cover 2 is provided with a cylindrical hole through which the fixing sleeve 5 is inserted. The inner wall of the cylindrical hole and the outer wall of the fixing sleeve 5 are glued. After the fixing sleeve 5 is turned over, its corresponding position is located at the top of the chip placement groove 11. The pressing block 9 is square, and its size is the same as that of the chip placement groove 11. A buffer pad 901 is fixedly connected to the other side of the pressing block 9. The size of the buffer pad 901 is the same as that of the pressing block 9, and the connection method is glue bonding. The chip is squeezed and fixed by pressing the pressing block 9 downward. The inner cavity of the fixed sleeve 5 at one end away from the pressing block 9 is cylindrical, and the rest are square.

[0020] An extrusion portion is provided on one side of the pressing block 9 and in the inner cavity of the fixed sleeve 5;

[0021] Specifically, the extrusion part includes a push plate 701, one side of the push plate 701 is fixedly connected with an insertion rod 7, the outer side of the insertion rod 7 is sleeved with a compression spring 10, the pressure ring 6 is sleeved on the outer side of the insertion rod 7, and the compression spring 10 is arranged on the opposite side of the pressure ring 6 and the push plate 701;

[0022] It should be noted that the push plate 701 is a square plate, which is in close contact with the inner cavity of the fixed sleeve 5. A limit plate 8 is fixedly connected to one side of the pressure block 9 and is located in the inner cavity of the fixed sleeve 5. The size of the limit plate 8 is the same as that of the pressure block 9. The limit plate 8 and the pressure block 9 are bonded with glue and move in the inner cavity of the fixed sleeve 5. The insertion rod 7 and the push plate 701 are connected by hot melt. The insertion rod 7 is a round rod, and the pressure ring 6 is a square ring with a round hole in the middle. It moves through the outer wall of the insertion rod 7. The diameter of the compression spring 10 is smaller than the side length of the pressure ring 6. The pressure ring 6 can change the initial length of the compression spring 10 by extrusion, thereby increasing its support force on the pressure block 9.

[0023] The top of the gland 2 is provided with an adjustment portion for adjusting the resilience of the extrusion portion;

[0024] Specifically, the adjustment part includes a fixing bolt 4, the top of the pressure cover 2 and the threaded end of the fixing bolt 4 are inserted and connected, the threaded end of the fixing bolt 4 and the inner cavity of the fixing sleeve 5 are provided with a pressure ring 6, and one end of the insertion rod 7 is inserted and connected to the threaded end of the fixing bolt 4;

[0025] It should be noted that a threaded hole for inserting the fixing bolt 4 is provided on the top of the gland 2, and the thread is communicated with the inner cavity of the fixing sleeve 5. The inner wall of the fixing sleeve 5 is also provided with a thread for inserting the fixing bolt 4. A moving groove 401 for moving the insertion rod 7 is provided at the threaded end of the fixing bolt 4. The moving groove 401 is a cylindrical groove. Through the moving groove 401, the fixing bolt 4 can rotate to squeeze the pressing ring 6, and the insertion rod 7 moves in a direction away from the pressing block 9.

[0026] The front of the test base 1 is fixedly connected with a fixing buckle 3, and the front of the pressure cover 2 is fixedly connected with a buckle claw 301. The fixing buckle 3 and the buckle claw 301 are both made of stainless steel. The fixing buckle 3 and the test base 1 and the pressure cover 2 and the buckle claw 301 are all glued and fixed. Through the fixation of the fixing buckle 3 and the buckle claw 301, the test base 1 and the pressure cover 2 are fixed to each other, so that the chip is fixed in the chip placement groove 11;

[0027] During actual use, a fixing bolt 4 is inserted into the top thread of the pressure cover 2. The user turns the fixing bolt 4, which squeezes the pressure ring 6 in the fixed sleeve 5, so that the pressure ring 6 moves toward the direction close to the pressure block 9, squeezing and reducing the activity space of the compression spring 10, so that the compression spring 10 with reduced rebound force increases the rebound force on the pressure block 9, avoiding that the pressure block 9 has insufficient squeezing and fixing force on the chip in the chip placement groove 11, affecting the connection between the chip and the pin contact point in the chip placement groove 11. After the chip is fixed, the test base 1 is connected to the burner or test equipment to burn the chip or perform functional tests.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A chip burning test socket, comprising a test base (1), a pressure cover (2) is hingedly connected to the top side of the test base (1), and a chip placement groove (11) is arranged on the top of the test base (1), characterized in that: The bottom of the pressure cover (2) is interlaced with a fixed sleeve (5), the bottom of the fixed sleeve (5) is interlaced with a pressure block (9), one side of the pressure block (9) and located in the inner cavity of the fixed sleeve (5) is provided with an extrusion portion, the top of the pressure cover (2) is provided with an adjustment portion for adjusting the rebound force of the extrusion portion, the adjustment portion includes a fixing bolt (4), the top of the pressure cover (2) and the threaded end of the fixing bolt (4) are interlaced with each other, and the threaded end of the fixing bolt (4) and located in the inner cavity of the fixing sleeve (5) is provided with a pressure ring (6).

2. A chip burning test socket according to claim 1, characterized in that: The extrusion portion includes a push plate (701), one side of the push plate (701) is fixedly connected to an insertion rod (7), the outer side of the insertion rod (7) is sleeved with a compression spring (10), the pressure ring (6) is sleeved on the outer side of the insertion rod (7), the compression spring (10) is arranged on the opposite side of the pressure ring (6) and the push plate (701), and one end of the insertion rod (7) is inserted and connected to the threaded end of the fixing bolt (4).

3. A chip burning test socket according to claim 2, characterized in that: The threaded end of the fixing bolt (4) is provided with a moving groove (401) for moving the insertion rod (7).

4. A chip burning test socket according to claim 3, characterized in that: A limiting plate (8) is fixedly connected to one side of the pressing block (9) and is located in the inner cavity of the fixing sleeve (5).

5. A chip burning test socket according to claim 4, characterized in that: A buffer pad (901) is fixedly connected to the other side of the pressing block (9).

6. A chip burning test socket according to claim 1, characterized in that: The inner wall of the chip placement groove (11) is symmetrically provided with taking grooves (111).

7. A chip burning test socket according to claim 6, characterized in that: A fixing buckle (3) is fixedly connected to the front of the test base (1), and a buckle claw (301) is fixedly connected to the front of the pressure cover (2).

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