Semiconductor chip clamping device for physical experiment

Abstract

The utility model discloses a semiconductor chip clamping device for a physical experiment, relates to the technical field of clamping devices for experiments, and solves the problem that a clamping device in the prior art cannot meet the requirements of flexible movement and presentation of specified angles and postures in the actual use process. The device comprises a base arranged on an experiment table in a sliding mode, a cantilever assembly is arranged on the base, a suction needle cylinder is arranged at the movable end of the cantilever assembly, and the suction end of the suction needle cylinder is connected with multi-specification suction heads in a replaceable mode. The device can be fixed to an experiment table by arranging the base and is arranged on the experiment table in a sliding mode, movement in the experiment process is facilitated, in addition, by arranging the cantilever assembly, the posture and position of a clamped chip can be conveniently adjusted, the actual experiment requirement is met, and the suction needle cylinder is matched with the suction head, so that the suction needle cylinder is convenient to use. Adsorption, clamping and fixation of the to-be-clamped chip can be realized. The device is reliable in structure, stable in clamping and flexible and controllable in use.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping devices for experiments, in particular to a semiconductor chip clamping device for physical experiments. Background Art

[0002] In physical experiments, semiconductor chips often need to be clamped. The traditional way to clamp semiconductor chips is for the staff to first prepare a pair of tweezers, and then place the semiconductor chip in the tweezers by squeezing the two ends of the tweezers. Due to the strength of the hands, the chip is easily damaged. Once the semiconductor chip is damaged or hidden, it will lead to problems such as structural instability and unstable performance.

[0003] The Chinese invention patent with the publication number CN114334764A discloses a semiconductor chip clamping device for physical experiments, which includes a tube body, a suction cup is bonded to the bottom of the inner wall of the tube body, and a piston is slidably connected to the top of the inner wall of the suction cup, a mounting column is bonded to the outer wall of the top of the piston, and a first spring is connected between the mounting column and the tube body. The present invention drives the piston to move upward through the first spring, so that the air pressure in the suction cup is reduced, thereby generating suction to suck the semiconductor chip. The structure is stable, not only will the semiconductor chip not be damaged, but the semiconductor chip is not easy to fall. The first spring is stretched by pressing the pressure plate downward, which provides a basis for the subsequent contraction of the first spring. At the same time, when the ball is located in the limit groove, the first spring can be prevented from contracting upward. The structure is reasonable and the operation is simple. When in use, the scheme uses the piston suction to maintain the adsorption of the chip to achieve clamping. After clamping, the entire experimental process and movement need to be manually held.

[0004] The Chinese utility model with announcement number CN210045275U discloses a semiconductor chip clamping device for physical experiments. In this scheme, after the device is fixed, the moving rod can be directly moved downward to fix the semiconductor chip, so that the semiconductor chip can be conveniently clamped.

[0005] However, in actual physical experiments, most of the time, it is necessary to move the chip to a specified position after clamping it, and present it at a specified angle or posture for use in subsequent experiments. The above-mentioned existing technologies can only meet the requirements of clamping and simple movement of the chip, and cannot meet the requirements of flexible movement and presentation at a specified angle and posture during actual use. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the utility model proposes a semiconductor chip clamping device for physical experiments, which solves the problem that the clamping device in the prior art cannot meet the requirements of flexible movement and presentation of specified angles and postures during actual use.

[0007] The technical solution of the utility model is implemented as follows: a semiconductor chip clamping device for physical experiments, including a base slidably arranged on a laboratory table, a cantilever assembly is arranged on the base, a suction syringe is arranged at the movable end of the cantilever assembly, and the suction end of the suction syringe can be replaceably connected with adsorption heads of multiple specifications.

[0008] Preferably, the suction syringe comprises a cylinder hinged at the movable end of the cantilever assembly, a piston is slidably arranged in the cylinder, the piston is connected to the push rod, a spring is arranged between the outer end of the push rod and one end of the cylinder, and an air port is arranged at the other end of the cylinder.

[0009] Preferably, a button is fixedly provided at the end of the push rod, and a spring is provided between the button and the cylinder.

[0010] Preferably, the adsorption head includes a plug-in portion connected to the air port, the plug-in portion is connected to one end of the gooseneck tube, and the other end of the gooseneck tube of adsorption heads of different specifications is provided with suction cups of different sizes.

[0011] Preferably, the suction cup is provided with a suction port connected to the gooseneck tube, and a sealing ring is provided on the surface of the suction cup.

[0012] Preferably, a dovetail slide rail is fixedly provided on the experimental table, a slider is provided at the bottom of the base, and the slider is slidably matched with the dovetail slide rail, and a first locking piece for locking the position of the base is provided on the base.

[0013] Preferably, the cantilever assembly includes a column fixed on the base, a ring is slidably provided on the column, a second locking piece cooperating with the column is provided on the ring, and the ring is fixedly connected to the main cantilever, the main cantilever is hinged to the auxiliary cantilever, the movable end of the auxiliary cantilever is hinged with a suspension rod, and the attraction syringe is hinged at the end of the suspension rod.

[0014] Preferably, the secondary cantilever is provided with a ball joint, and is hingedly connected to the suspension rod via the ball joint.

[0015] Preferably, a hinged seat is provided at the end of the suspension rod, the hinged seat is hinged to the bracket, and the bracket is glued and fixed to the suction syringe.

[0016] Preferably, the first locking member and the second locking member both comprise a threaded column, and a rotary handle is provided at the end of the threaded column.

[0017] The beneficial effects of the utility model are as follows: the device can be fixed to the experimental table by setting a base, and can be set on the experimental table in a sliding manner, which is convenient for movement during experiments. In addition, by setting a cantilever assembly, it is convenient to adjust the posture and position of the clamped chip to meet the actual experimental needs. During the experiment, there is no need to manually lift and clamp the chip for a long time. By setting a suction syringe and an adsorption head, the adsorption, clamping and fixing of the clamped chip can be achieved. Furthermore, by replacing and setting multiple specifications of adsorption heads, the clamping requirements of chips of different sizes and models can be met, and the scope of application is wider. The device has a reliable structure, stable clamping, and flexible and controllable use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a schematic diagram of the structure of the utility model in use state;

[0020] Figure 2 This is a schematic diagram of the internal structure of the suction syringe of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 4 This is a schematic diagram of the connection structure between the suction needle cylinder and the suspension rod of the utility model;

[0023] In the figure: 1: laboratory table, 2: base, 3: suction syringe, 4: adsorption head, 31: cylinder, 32: piston, 33: push rod, 34: spring, 35: air port, 36: button, 37: gooseneck, 38: suction cup, 39: suction port, 40: sealing ring, 21: dovetail slide rail, 22: first locking piece, 23: column, 24: collar, 25: second locking piece, 26: main cantilever, 27: secondary cantilever, 29: cantilever, 30: ball joint, 50: hinged seat, 51: bracket, 52: rotary handle. DETAILED DESCRIPTION

[0024] 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.

[0025] like Figure 1 , 2 As shown in Figure 3, embodiment 1 is a semiconductor chip clamping device for physical experiments, including a base 2 slidably arranged on a laboratory table 1. The base can provide a supporting connection foundation to achieve connection with the laboratory table for the experiment, and is slidably arranged on the laboratory table to facilitate movement and adjustment during the experiment. A cantilever assembly is provided on the base 2, and a suction syringe 3 is provided at the movable end of the cantilever assembly. The suction end of the suction syringe 3 can be replaced and connected with a suction head 4 of multiple specifications. By setting the suction syringe to cooperate with the suction head, the suction clamping and fixing of the clamped chip can be achieved. The replaceable suction heads of multiple specifications are provided to meet the clamping requirements of chips of different sizes and models, and the scope of application is wider.

[0026] When the device is actually used, first select an adsorption head of appropriate size and specification and install it on the suction syringe. Under the movable support of the cantilever assembly, move the suction syringe to make the adsorption head clamp the chip to be clamped, and adjust the posture and position after clamping the chip according to actual needs. After adjusting the posture, lock the position of the cantilever assembly and conduct subsequent experiments. This device can achieve experiments without manual lifting and clamping for a long time. It has a reliable structure, stable clamping, and flexible and controllable use.

[0027] As a further implementation, in this embodiment, the suction syringe 3 includes a cylinder 31 hinged at the movable end of the cantilever assembly, a piston 32 is slidably provided in the cylinder 31, the piston 32 is connected to the push rod 33, and a spring 34 is provided between the outer end of the push rod 33 and one end of the cylinder 31, and an air port 35 is provided at the other end of the cylinder 31. Specifically, a button 36 is fixedly provided at the end of the push rod 33, and a spring 34 is provided between the button 36 and the cylinder 31. When the chip is adsorbed and clamped, the button is pressed, and the piston is pushed to move toward the air port end at the same time. At this time, the spring is compressed, and then the adsorption head is matched and fitted with the chip, and the button is released. Under the action of the spring reset, the piston is driven to move toward the outer end of the cylinder, thereby generating negative pressure, so that the chip is adsorbed on the adsorption head. During this process, the spring is still not completely reset. Due to the continuous reset of the spring and the existence of slow air leakage, the clamping and adsorption requirements for a certain period of time can be maintained to meet the experimental requirements.

[0028] As a further implementation, in this embodiment, the adsorption head 4 includes a plug-in portion connected to the air port 35, the plug-in portion is connected to one end of the gooseneck tube 37, and the other end of the gooseneck tube 37 of the adsorption head 4 of different specifications is provided with a suction cup 38 of different sizes. Further, the suction cup 38 is provided with a suction port 39 connected to the gooseneck tube 37, and a sealing ring 40 is provided on the surface of the suction cup 38. When the spring reset generates negative pressure, the negative pressure at the suction port adsorbs the chip on the suction cup, and the provision of a sealing ring can better fit the chip during adsorption to reduce air leakage.

[0029] Embodiment 2, based on embodiment 1, a dovetail slide rail 21 is fixedly provided on the experimental table 1, a slider is provided at the bottom of the base 2, and the slider is slidably matched with the dovetail slide rail 21, and a first locking member 22 for locking the position of the base 2 is provided on the base 2. When the base needs to be moved, the first locking member is unlocked, and the slider is moved along the slide rail to realize the movement of the base, and the base is locked again after the movement is completed.

[0030] In addition, the cantilever assembly includes a column 23 fixed on the base 2, a collar 24 is slidably provided on the column 23, a second locking member 25 cooperating with the column 23 is provided on the collar 24, and the collar 24 is fixedly connected to the main cantilever 26. When the second locking member is unlocked, the collar can slide vertically relative to the column and can rotate relative to the column to achieve the movement of the main cantilever position to meet the experimental requirements. In addition, the main cantilever 26 is hinged with the auxiliary cantilever 27, and the movable end of the auxiliary cantilever 27 is hinged with a suspension rod 29, and the suction syringe 3 is hinged at the end of the suspension rod 29. Through the auxiliary cantilever and the suspension rod connected by multi-stage hinges, the position of the suction syringe relative to the laboratory table can be flexibly changed and adjusted to meet the actual use requirements.

[0031] As a further embodiment, Figure 4 As shown, a ball joint 30 is provided on the secondary cantilever 27, and is hingedly connected to the suspension rod 29 through the ball joint 30. By providing the ball joint, the suspension rod can be adjusted to more angles, thereby satisfying the adjustment of the posture of the clamped and adsorbed chip. In this embodiment, the ball joint adopts a conventional ball joint with a certain damping, and the damping effect is conducive to maintaining the angle of the suspension rod. In addition, a hinge seat 50 is provided at the end of the suspension rod 29, and the hinge seat 50 is hinged to the bracket 51, and the bracket 51 is glued and fixed to the suction syringe 3. In this embodiment, an arc-shaped surface is provided on the bracket, and the outer wall of the suction syringe is glued and fixed to the arc-shaped surface of the bracket.

[0032] In this embodiment, the first locking member 22 and the second locking member 25 both include a threaded column, and a handle 52 is provided at the end of the threaded column. The threaded columns of the first locking member and the second locking member are respectively threadedly connected to the base and the ring, and can be pressed against the side wall of the laboratory table or the column to achieve position locking when the handle is rotated.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. 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 semiconductor chip clamping device for physical experiments, comprising a base (2) slidably arranged on a laboratory table (1), characterized in that: The base (2) is provided with a cantilever assembly, the movable end of the cantilever assembly is provided with a suction syringe (3), and the suction end of the suction syringe (3) can be replaced and connected to a suction head (4) of various specifications; The cantilever assembly comprises a column (23) fixedly arranged on the base (2), a collar (24) slidably arranged on the column (23), a second locking member (25) cooperating with the column (23) arranged on the collar (24), and the collar (24) is fixedly connected to a main cantilever (26), the main cantilever (26) is hingedly connected to a secondary cantilever (27), a suspension rod (29) is hingedly connected to the movable end of the secondary cantilever (27), and the suction syringe (3) is hingedly arranged at the end of the suspension rod (29); The secondary cantilever (27) is provided with a ball joint (30), and is hingedly connected to the suspension rod (29) via the ball joint (30); A hinged seat (50) is provided at the end of the suspension rod (29); the hinged seat (50) is hingedly connected to a support seat (51), and the support seat (51) is glued and fixed to the suction syringe (3).

2. The semiconductor chip clamping device for physical experiments according to claim 1, characterized in that: The suction syringe (3) comprises a cylinder (31) hingedly arranged at the movable end of the cantilever assembly, a piston (32) being slidably arranged in the cylinder (31), the piston (32) being connected to a push rod (33), and a spring (34) being arranged between the outer end of the push rod (33) and one end of the cylinder (31), and an air port (35) being arranged at the other end of the cylinder (31).

3. The semiconductor chip clamping device for physical experiments according to claim 2, characterized in that: A button (36) is fixedly provided at the end of the push rod (33), and a spring (34) is provided between the button (36) and the cylinder (31).

4. The semiconductor chip clamping device for physical experiments according to claim 2 or 3, characterized in that: The adsorption head (4) comprises a plug-in portion connected to the air port (35), the plug-in portion being connected to one end of a gooseneck tube (37), and the other end of the gooseneck tube (37) of adsorption heads (4) of different specifications is provided with suction cups (38) of different sizes.

5. The semiconductor chip clamping device for physical experiments according to claim 4, characterized in that: The suction cup (38) is provided with a suction port (39) connected to the gooseneck tube (37), and a sealing ring (40) is provided on the surface of the suction cup (38).

6. The semiconductor chip clamping device for physical experiments according to any one of claims 1 to 3 and 5, characterized in that: The experimental table (1) is fixedly provided with a dovetail slide rail (21), the bottom of the base (2) is provided with a slider, and the slider is slidably engaged with the dovetail slide rail (21), and the base (2) is provided with a first locking member (22) for locking the position of the base (2).

7. The semiconductor chip clamping device for physical experiments according to claim 6, characterized in that: The first locking member (22) and the second locking member (25) both comprise a threaded column, with a rotating handle (52) being provided at the end of the threaded column.

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