Fastening assembly type probe card

Abstract

The utility model relates to the technical field of fastening assembly type probe cards, and discloses a fastening assembly type probe card which comprises a shell, a probe plate is installed at the top of the shell, a fixing column is fixedly connected to the bottom of the probe plate, a plurality of tooth grooves are formed in the periphery of the outer wall of the fixing column at equal intervals, and the tooth grooves are fixedly connected with the probe plate. Fixing short columns penetrate through the front side and the rear side of the outer wall of the shell, a semicircular plate is fixedly connected to the adjacent ends of the fixing short columns, a plurality of springs are fixedly connected to the rear side of the outer wall of the semicircular plate at equal intervals, and fixing pieces are fixedly connected to the other ends of the springs; a plurality of sawteeth are fixedly connected to the adjacent sides of the outer walls of the semicircular plates at equal intervals. According to the utility model, the fixed short column is pulled to drive the semicircular plate to contract towards the two sides so as to take down the probe, and finally, the saw teeth and the tooth grooves are clamped and fixed, so that the effect that the probe head can be quickly replaced and mounted when the probe head of the probe is damaged is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of fastening and assembling probe cards, in particular to a fastening and assembling probe card. Background Art

[0002] The fastening and assembling probe card is a key tool specifically used for semiconductor chip testing. It mainly consists of probes, probe seats, connection lines, and fastening and assembling structures, etc. Its working principle is to closely contact the probes with the test points on the chip to achieve the electrical connection between the test equipment and the chip, so as to be able to input test signals to the chip and receive the response signals fed back by the chip, thereby detecting whether the various performance indicators of the chip meet the requirements.

[0003] In the fields of semiconductor chip manufacturing, automotive electronics, and industrial control, for example, in the production process of semiconductor chips, precise testing of the produced semiconductor chips is required, and unqualified chips are screened out to improve the yield rate of chips and reduce production costs. This will use a fastening and assembling probe card to conduct contact testing on the chips on the chip wafer through its own probe card to screen out unqualified chips.

[0004] After the probes of the existing fastening and assembling probe card are in frequent contact and friction with the chip test points, the tips of the probes are worn and damaged. This requires manual disassembly of the entire probe card for a long replacement and repair, which makes the test work unable to proceed normally, thereby reducing the efficiency of the test work. Summary of the Utility Model

[0005] To make up for the above deficiencies, the utility model provides a fastening and assembling probe card, aiming to improve the problem that when the tips of the probes are worn and damaged in the prior art, it is necessary to manually disassemble the entire probe card for a long replacement and repair.

[0006] To achieve the above purpose, the utility model adopts the following technical scheme: A fastening and assembling probe card, including a housing, a probe board is installed on the top of the housing, fixing columns are fixedly connected to the bottom of the probe board, a plurality of tooth grooves are equidistantly arranged around the outer wall of the fixing columns, fixing short columns penetrate through the front and rear sides of the outer wall of the housing, a semi-circular plate is fixedly connected to the adjacent end of the fixing short column, a plurality of springs are equidistantly fixedly connected to the rear side of the outer wall of the semi-circular plate, the other end of the spring is fixedly connected to a fixing piece, a plurality of saw teeth are equidistantly fixedly connected to the adjacent side of the outer wall of the semi-circular plate, clamping mechanisms are installed on the left and right sides of the top of the housing, and the clamping mechanisms are used for fixedly clamping probe heads of different sizes.

[0007] As a further description of the above technical solution:

[0008] The clamping mechanism includes a first square plate which is installed on the left and right sides of the top of the housing. A fixed short rod is rotatably connected to the middle of the first square plate. One adjacent end of each of the fixed short rods is fixedly connected to a first bevel gear. A plurality of second square plates are fixedly connected to the top of the housing at equal intervals. A threaded long column penetrates through the middle of the second square plate. A second bevel gear is fixedly connected to the rear end of the outer wall of each of the threaded long columns. The second bevel gear is meshed with the first bevel gear. A long plate is threadedly connected to the outer wall of the threaded long column. A sliding column is fixedly connected to the rear side of the outer wall of the right long plate. The other end of the sliding column is slidably connected to a long hollow plate.

[0009] As a further description of the above technical solution:

[0010] A second screw is threadedly connected to the top of the outer wall of the fixed short column. A protective sleeve is threadedly connected to the outer wall of the second screw.

[0011] As a further description of the above technical solution:

[0012] A card slot is formed in the top of the probe board. A protective shell is clamped and connected inside the card slot.

[0013] As a further description of the above technical solution:

[0014] A first screw is threadedly connected to the top of the protective shell. A hanging ring is threadedly connected to the outer wall of the first screw.

[0015] As a further description of the above technical solution:

[0016] A warning sign is installed on the outer rear side of the housing. A fourth screw is threadedly connected to the middle of the warning sign.

[0017] As a further description of the above technical solution:

[0018] A third screw is threadedly connected to the front side of the outer wall of the rear long plate. An anti-slip plate is threadedly connected to the outer wall of the third screw.

[0019] As a further description of the above technical solution:

[0020] A fifth screw is threadedly connected to the left and right sides of the outer wall of the fixed short rod. An anti-slip sleeve is threadedly connected to the outer wall of the fifth screw.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present utility model, by pulling the fixed short post, the semi-circular plate at the front end is driven to squeeze on both sides, so that the serrations on the outer wall of the semi-circular plate are separated from the tooth grooves on the outer wall of the fixed post to remove the probe. After replacement, the probe is installed and then the fixed short post is released, and the semi-circular plate is contracted inward by the spring, and is clamped and fixed through the engagement of the serrations and the tooth grooves, thereby achieving the effect of quickly replacing and installing the needle tip when the needle tip of the probe is damaged.

[0023] 2. In the present utility model, first, through the fixed short rod in the middle of the left square plate one, the bevel gear one at the right end of the fixed short rod is engaged and rotated with the bevel gear two at the rear end of the left threaded long column, driving the long plate on the outer wall to be fixed to the probe. Finally, the long hollow plate on the right long plate slides and fixes on the outer wall of the probe, thereby achieving the effect of being able to fix probes of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional view of a fastening and assembling type probe card proposed by the present utility model;

[0025] Figure 2 is a rear view of a fastening and assembling type probe card proposed by the present utility model;

[0026] Figure 3 is a partial structure disassembly view of a fastening and assembling type probe card proposed by the present utility model;

[0027] Figure 4 is a partial structure schematic diagram of a fastening and assembling type probe card proposed by the present utility model;

[0028] Figure 5 is a schematic diagram of the clamping mechanism of a fastening and assembling type probe card proposed by the present utility model.

[0029] Example description:

[0030] 1. Housing; 2. Clamping mechanism; 201. Square plate one; 202. Fixed short rod; 203. Threaded long column; 204. Long hollow plate; 205. Sliding post; 206. Long plate; 207. Bevel gear one; 208. Square plate two; 209. Bevel gear two; 3. Anti-slip sleeve; 4. Screw one; 5. Hanging ring; 6. Protective shell; 7. Protective sleeve; 8. Screw two; 9. Fixed short post; 10. Screw three; 11. Anti-slip plate; 12. Screw four; 13. Warning sign; 14. Probe plate; 15. Tooth groove; 16. Fixed post; 17. Card slot; 18. Spring; 19. Fixed piece; 20. Semi-circular plate; 21. Serrations; 22. Screw five. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] Referring to Figure 1 , Figure 3 and Figure 4 , an embodiment provided by the present utility model: a fastening and assembled probe card, including a housing 1. A probe board 14 is installed on the top of the housing 1. A fixing column 16 is fixedly connected to the bottom of the probe board 14. The fixing column 16 plays a role in fixing and installing. A plurality of tooth grooves 15 are equidistantly arranged around the outer wall of the fixing column 16. Fixed short columns 9 penetrate through the front and rear sides of the outer wall of the housing 1. The fixed short columns 9 play a role in connection. A semi-circular plate 20 is fixedly connected to the adjacent end of the fixed short column 9. A plurality of springs 18 are equidistantly fixedly connected to the rear side of the outer wall of the semi-circular plate 20. The springs 18 on the rear side of the outer wall of the semi-circular plate 20 play a role of contraction and expansion. The other end of the spring 18 is fixedly connected to a fixing piece 19. The fixing piece 19 plays a role in fixing the spring 18. A plurality of saw teeth 21 are equidistantly fixedly connected to the adjacent side of the outer wall of the semi-circular plate 20. The saw teeth 21 play a role of clamping and fixing. Clamping mechanisms 2 are installed on the left and right sides of the top of the housing 1. The clamping mechanisms 2 are used to fixedly clamp probe heads of different sizes. A second screw 8 is threadedly connected to the top of the outer wall of the fixed short column 9. A protective sleeve 7 is threadedly connected to the outer wall of the second screw 8. The protective sleeve 7 on the outer wall of the fixed short column 9 can increase the contact area with the hand to prevent slipping. A card slot 17 is opened on the top of the probe board 14. A protective shell 6 is clamped and connected inside the card slot 17. The protective shell 6 inside the card slot 17 can protect the probe when the probe board 14 is not in use.

[0033] Referring to Figure 1 , Figure 2 and Figure 5, the clamping mechanism 2 includes a first square plate 201, which is installed on the left and right sides of the top of the housing 1. A fixed short rod 202 is rotatably connected to the middle of the first square plate 201. The first square plate 201 plays a fixing role, and the fixed short rod 202 plays a rotating role. Conical gears 207 are fixedly connected to adjacent ends of the fixed short rod 202, which play a role in rotational meshing. A plurality of second square plates 208 are fixedly connected to the top of the housing 1 at equal intervals. A threaded long column 203 passes through the middle of the second square plate 208. The second square plate 208 plays a role in fixing the threaded long column 203. Conical gears 209 are fixedly connected to the rear ends of the outer walls of the threaded long columns 203. The conical gears 209 are meshed with the conical gears 207, which play a rotating role. A long plate 206 is threadedly connected to the outer wall of the threaded long column 203. The long plate 206 on the outer wall of the threaded long column 203 plays a role in moving and clamping. A sliding column 205 is fixedly connected to the rear side of the outer wall of the right long plate 206. The other end of the sliding column 205 is slidably connected to a long hollow plate 204. The long hollow plate 204 slides on the outer wall of the probe to achieve maximum fixation with the probe. A screw 4 is threadedly connected to the top of the protective shell 6. A hanging ring 5 is threadedly connected to the outer wall of the screw 4. The hanging ring 5 on the top of the protective shell 6 can hang the protective shell 6 when not in use to avoid damage. A warning sign 13 is installed on the outer rear side of the housing 1, which can play a warning and reminder role for maintenance personnel. A screw 12 is threadedly connected to the middle of the warning sign 13;

[0034] Refer to Figure 1 and Figure 2 , a screw 10 is threadedly connected to the front side of the outer wall of the rear long plate 206. An anti-slip plate 11 is threadedly connected to the outer wall of the screw 10. The anti-slip plate 1 provides a warning and reminder role for maintenance personnel. A screw 12 is threadedly connected to the middle of the warning sign 13;

[0035] Working principle: When the tip of the probe is damaged, by pulling the fixed short columns 9 on the front and rear sides of the outer wall of the housing 1, while the fixed short columns 9 are being pulled, they will drive the front semi-circular plate 20 to squeeze the springs 18 on the rear sides of the outer walls of the semi-circular plates 20, contracting the springs 18. Thus, the sawteeth 21 on the outer walls of the semi-circular plates 20 are separated from the tooth grooves 15 on the outer walls of the fixed columns 16 at the bottom of the probe plate 14, and the probe head is removed for replacement and repair. When the replacement is completed, the probe head is installed on the probe plate 14 and then the fixed short columns 9 are released. The springs 18 contract the two semi-circular plates 20 inward, and the sawteeth 21 are engaged with the tooth grooves 15 of the fixed columns 16 for clamping and fixing. Thus, the effect of quickly replacing and installing the tip when the tip of the probe is damaged is achieved;

[0036] First, rotate the fixed short rod 202 in the middle of the square plate 201 on the left side of the top of the housing 1. Through the bevel gear 207 fixedly connected to the right end of the fixed short rod 202, it meshes and rotates with the bevel gear 209 in the middle of the threaded long column 203 at the back of the square plate 208 on the left side of the top of the housing 1. When the threaded long column 203 rotates, it will drive the long plate 206 on the outer wall to fix the probe. Finally, rotate the fixed short rod 202 on the right side, and the long hollow plate 204 on the long plate 206 on the outer wall of the threaded long column 203 on the right side slides and fixes on the outer wall of the fixed needle, thus achieving the effect of being able to fix probes of different sizes.

[0037] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A fastening and assembled probe card, comprising a housing (1), characterized in that: A probe board (14) is installed on the top of the housing (1). A fixing column (16) is fixedly connected to the bottom of the probe board (14). A plurality of tooth grooves (15) are equidistantly arranged around the outer wall of the fixing column (16). Fixing short columns (9) penetrate through the front and rear sides of the outer wall of the housing (1). A semi-circular plate (20) is fixedly connected to the adjacent ends of the fixing short columns (9). A plurality of springs (18) are equidistantly and fixedly connected to the rear side of the outer wall of the semi-circular plate (20). The other ends of the springs (18) are fixedly connected to fixing pieces (19). A plurality of saw teeth (21) are equidistantly and fixedly connected to the adjacent side of the outer wall of the semi-circular plate (20). Clamping mechanisms (2) are installed on the left and right sides of the top of the housing (1). The clamping mechanisms (2) are used for fixedly clamping probe heads of different sizes.

2. The fastening and assembling type probe card according to claim 1, characterized in that: The clamping mechanism (2) includes a first square plate (201). The first square plate (201) is installed on the left and right sides of the top of the housing (1). A fixing short rod (202) is rotatably connected to the middle of the first square plate (201). First bevel gears (207) are fixedly connected to the adjacent ends of the fixing short rod (202). A plurality of second square plates (208) are equidistantly and fixedly connected to the top of the housing (1). A threaded long column (203) penetrates through the middle of the second square plate (208). Second bevel gears (209) are fixedly connected to the rear ends of the outer walls of the threaded long columns (203). The second bevel gears (209) are meshed with the first bevel gears (207). A long plate (206) is threadedly connected to the outer wall of the threaded long column (203). A sliding column (205) is fixedly connected to the rear side of the outer wall of the right long plate (206). The other end of the sliding column (205) is slidably connected to a long hollow plate (204).

3. The fastening and assembling type probe card according to claim 1, wherein: A second screw (8) is threadedly connected to the top of the outer wall of the fixing short column (9). A protective sleeve (7) is threadedly connected to the outer wall of the second screw (8).

4. The fastening and assembling type probe card according to claim 1, characterized in that: A card slot (17) is formed in the top of the probe board (14). A protective shell (6) is clamped and connected inside the card slot (17).

5. The fastening and assembling type probe card according to claim 4, wherein: A first screw (4) is threadedly connected to the top of the protective shell (6). A hanging ring (5) is threadedly connected to the outer wall of the first screw (4).

6. The fastening and assembling type probe card according to claim 1, wherein: A warning sign (13) is installed on the outer rear side of the housing (1). A fourth screw (12) is threadedly connected to the middle of the warning sign (13).

7. The fastening and assembling type probe card according to claim 2, wherein: A third screw (10) is threadedly connected to the front side of the outer wall of the rear long plate (206). An anti-slip plate (11) is threadedly connected to the outer wall of the third screw (10).

8. The fastening and assembling type probe card according to claim 2, wherein: Fifth screws (22) are threadedly connected to the left and right sides of the outer wall of the fixing short rod (202). Anti-slip sleeves (3) are threadedly connected to the outer walls of the fifth screws (22).

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