A chemical unsealing device and method for plastic-encapsulated components

Abstract

The present application provides a chemical unsealing device and method for plastic-encapsulated components, belonging to the field of semiconductor technology. The device includes a device clamping structure, which includes a first clamping part for clamping the plastic-encapsulated components and a first guide rail part extending in the horizontal direction, and the first clamping part is slidably connected to the first guide rail part; the liquid dripping clamping structure includes a second clamping part for clamping the liquid suction pipe and a second guide rail part extending in the vertical direction, the liquid suction pipe is slidably connected to the second guide rail part, and a container for loading acid solution is provided below the second guide rail part. The chemical unsealing device for plastic-encapsulated components provided by the present application can prevent technicians from directly contacting the chemical acid dripping unsealing process, avoid deviation of the unsealing position caused by manual acid dripping jitter, and also avoid potential risks caused by splashing of chemical reagents.

Description

Technical Field

[0001] This application relates to the technical field of plastic encapsulated component opening, and particularly to a chemical opening device and method for plastic encapsulated components. Background Art

[0002] In the field of the reliability of plastic encapsulated devices, many test items require opening the encapsulation layer of plastic encapsulated devices to expose internal chips, bonding wires, lead frames and other information for subsequent tests and analyses.

[0003] However, currently, the opening methods for plastic encapsulated devices are generally automatic opening or manual acid dropping opening. When using an automatic opening device, a suitable mask gasket is required. When the acid mist ejected corrodes the device, due to the low corrosion speed, corrosion direction and controllability, the opening area cannot be well controlled, resulting in a low success rate during the opening process of plastic encapsulated devices. When using manual acid dropping, due to the small volume of the chip, the accuracy requirement for the acid dropping position is high. The manual acid dropping jitter easily causes acid dropping deviation, affecting the opening effect; and during the acid dropping process, the corrosive acid liquid splashing is also likely to burn the technicians, creating potential safety hazards. Summary of the Invention

[0004] In view of this, the purpose of this application is to propose a chemical opening device and method for plastic encapsulated components to solve the problems mentioned in the background art.

[0005] Based on the above purpose, this application provides a chemical opening device for plastic encapsulated components, including:

[0006] A device clamping structure, including a first clamping part for clamping the plastic encapsulated component and a first guide rail part extending in the horizontal direction, and the first clamping part is slidably connected to the first guide rail part;

[0007] A liquid dropping clamping structure, including a second clamping part for clamping a liquid suction pipe and a second guide rail part extending in the vertical direction, and the liquid suction pipe is slidably connected to the second guide rail part. A container for loading reagents is provided below the second guide rail part;

[0008] Wherein, under the action of an external driving force, the second clamping part slides on the second guide rail part so that the liquid suction pipe extracts the reagent from the container, the first clamping part slides on the first guide rail part to below the second clamping part, and the liquid suction pipe drops the extracted reagent onto the plastic encapsulated component of the first clamping part.

[0009] Furthermore, it further includes:

[0010] A test bench, which is used to load and fix the device clamping structure and the liquid dropping clamping structure. The test bench is covered with a transparent protective material, and the test bench is communicated with the outside through a ventilation and purification structure.

[0011] Further, it further includes a cleaning structure, which is arranged at one end of the first guide rail part away from the second guide rail part and below the first guide rail part, and the cleaning structure is used to clean the plastic encapsulated components.

[0012] Further, the second clamping part includes a connecting piece and a clamping piece. The connecting piece is fixedly connected to the sliding end of the second guide rail part. The clamping piece is detachably connected to the suction pipe part, and the angle of the suction pipe part on the clamping piece is adjustable.

[0013] Further, the clamping piece includes two clamping bodies connected by hinges. One of the clamping bodies is fixedly connected to the connecting piece, and an elastic member is clamped between the two clamping bodies. The elastic member has a force to drive the two clamping bodies to clamp the suction pipe part.

[0014] Further, a through hole for passing the suction pipe part is provided on the connecting piece. After the suction pipe part passes through the connecting piece, it is clamped by the clamping piece. In the clamped state, the suction pipe part is arranged obliquely relative to the horizontal plane.

[0015] Further, the plastic encapsulated components on the first clamping part are arranged obliquely relative to the horizontal plane.

[0016] Further, the suction pipe part includes a rigid dropper and an elastic air bag connected to the dropper. A scale mark is provided on the dropper. Under the action of an external force drive, the elastic air bag compresses to make the dropper in a negative pressure liquid suction state; or, the elastic air bag expands to make the dropper in a pressurized liquid dropping state.

[0017] Further, it further includes a heating member, and the container is placed on the heating member.

[0018] Based on the same inventive concept, the present application also provides a chemical opening method for plastic encapsulated components, which is applicable to the plastic encapsulated component chemical opening device described in any one of the above. The method includes:

[0019] Place a reagent at a preset temperature in the container, and clamp the plastic encapsulated component to be opened to the second clamping part;

[0020] Adjust the second clamping part to slide down along the second guide rail part until the suction pipe part is immersed in the reagent, and control the suction pipe part to suck the reagent in the container; adjust the second clamping part to slide up along the second guide rail part until the suction pipe part is separated from the container;

[0021] Adjust the first clamping part to slide along the first guide rail part in a direction close to the second clamping part until the plastic encapsulated component is located below the outlet of the suction pipe part;

[0022] Control the suction pipe member to drip the reagent onto the plastic-encapsulated component.

[0023] As can be seen from the above, the chemical unsealing device for plastic-encapsulated components provided in this application, by setting a first clamping part that moves horizontally and a second clamping part that moves vertically, the first clamping part clamps the plastic-encapsulated component, and the second clamping part clamps the suction pipe member carrying the reagent. Under the drive of an external force, both the first clamping part and the second clamping part can perform precise displacement, so that the reagent dripped from the suction pipe member accurately falls onto the designated area of the plastic-encapsulated component, improving the acid-dropping accuracy during the chemical unsealing process. At the same time, during the whole process, there is no need to manually perform the acid-dropping operation. Instead, by controlling the suction pipe member, the first clamping part and the second clamping part to perform corresponding actions, it avoids the technical personnel from directly contacting the chemical acid-dropping unsealing process, prevents the deviation of the unsealing position caused by the shaking of manual acid-dropping operation, and also avoids the potential risk caused by the splashing of chemical reagents. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in this application or related technologies, the following will briefly introduce the drawings required for use in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only the embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a perspective view of the chemical unsealing device for plastic-encapsulated components according to the embodiment of this application;

[0026] Figure 2 It is a perspective view of the chemical unsealing device for plastic-encapsulated components from another angle according to the embodiment of this application;

[0027] Figure 3 It is a schematic diagram of the layout positions of the first guide rail part and the second guide rail part according to the embodiment of this application;

[0028] Figure 4 It is a schematic diagram of the structure of the clamping member according to the embodiment of this application;

[0029] Figure 5 It is an assembly schematic diagram of the clamping member and the connecting member according to the embodiment of this application;

[0030] Figure 6 It is a schematic diagram of the structure of the suction pipe member according to the embodiment of this application;

[0031] Figure 7 It is a schematic diagram of the steps of the chemical unsealing method for plastic-encapsulated components according to the embodiment of this application.

[0032] Description of the Reference Numerals

[0033] 1. Test bench; 2. First guide rail part; 3. Second guide rail part; 4. First clamping part; 5. Second clamping part;

[0034] 51. Connecting piece; 52. Clamping piece;

[0035] 511. First connecting plate; 512. Second connecting plate; 513. Bent plate; 514. Strip-shaped hole; 515. Perforation;

[0036] 521. Clamping body; 522. Elastic member; 523. Connecting rod; 524. Hinge point;

[0037] 6. Suction pipe fitting; 61. Dropper; 62. Connecting pipe; 63. Elastic airbag;

[0038] 7. Water outlet pipe; 8. Heating element; 9. Driving motor; 10. Container. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further elaborates on the present application in detail with reference to specific embodiments and the accompanying drawings.

[0040] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should have the ordinary meanings understood by those with ordinary skills in the field to which the present application belongs. The "first", "second" and similar terms used in the embodiments of the present application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. Words such as "connected" or "linked" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0041] The following elaborates on the embodiments of the present application in detail with reference to the accompanying drawings.

[0042] As Figure 1 and Figure 2 shown, in one or more embodiments of the present application, a chemical unsealing device for plastic-encapsulated components is provided, and the device includes:

[0043] A device clamping structure, including a first clamping part 4 for clamping the plastic-encapsulated component and a first guide rail part 2 extending in the horizontal direction, and the first clamping part 4 is slidably connected to the first guide rail part 2;

[0044] The dropping liquid clamping structure includes a second clamping portion 5 for clamping the suction pipe member 6 and a second guide rail portion 3 extending in the vertical direction. The suction pipe member 6 is slidably connected to the second guide rail portion 3, and a container 10 for loading reagents is provided below the second guide rail portion 3.

[0045] Wherein, under the action of an external force drive, the second clamping portion 5 slides on the second guide rail portion 3 so that the suction pipe member 6 extracts the reagent from the container 10. The first clamping portion 4 slides on the first guide rail portion 2 to the lower side of the second clamping portion 5, and the acid liquid extracted by the suction pipe member 6 is dropped onto the plastic encapsulated components of the first clamping portion 4.

[0046] It can be seen from the above description that the plastic encapsulated component chemical opening device provided by the present application, by setting the horizontally moving first clamping portion 4 and the vertically moving second clamping portion 5, the first clamping portion 4 clamps the plastic encapsulated components, and the second clamping portion 5 clamps the suction pipe member 6 carrying the acid liquid. Under the drive of an external force, both the first clamping portion 4 and the second clamping portion 5 can perform precise displacement, so that the acid liquid dropped by the suction pipe member 6 accurately falls into the designated area of the plastic encapsulated components, improving the acid dropping accuracy in the chemical opening process. At the same time, during the whole process, there is no need to manually perform the acid dropping operation, but instead, the corresponding actions are performed by controlling the suction pipe member 6, the first clamping portion 4 and the second clamping portion 5, eliminating the need for technicians to directly contact the chemical acid dropping opening process, avoiding deviation of the opening position caused by manual acid dropping jitter, and also avoiding potential risks caused by splashing of chemical reagents.

[0047] Here, it should be noted that the plastic encapsulated components referred to in the present application refer to the components that form the encapsulation layer through the plastic encapsulation method. After etching and opening the encapsulation layer to expose the internal structure, subsequent analysis is carried out. Here, the encapsulation method of the plastic encapsulated components can be PCB encapsulation (Printed Circuit Board, printed circuit board), DIP (Dual In-line Package, dual in-line package), SOP (Single In-line Package, single in-line package), SOT (Surface-mount On Transistor, surface mount package), LGA (Land Grid Array, grid array package), QFP (QuadFlat Package, square flat package), etc.

[0048] Take Figure 1 as an example, Figure 1 the X direction marked in is the horizontal direction, the Y direction is the vertical, that is, the height direction, and the Z direction is the direction perpendicular to the X direction and the Y direction respectively. The following all refer to Figure 1The direction will be described. In addition, the reagent described in this application is an acidic chemical reagent for unsealing and etching, including concentrated sulfuric acid, hydrochloric acid, nitric acid, etc. For plastic encapsulated components with different encapsulation methods, the constituent materials are different, and different acidic chemical reagents can be selected. In this regard, the acidic chemical reagent for unsealing will be referred to as acid solution in the following text.

[0049] In some embodiments, the chemical unsealing device for plastic encapsulated components further includes a test bench 1, which is used to load and fix the device clamping structure and the dropper clamping structure. The test bench 1 is covered with a transparent protective material, and the test bench 1 is communicated with the outside through a ventilation and purification structure. Setting the transparent protective material can directly and clearly observe the states such as the degree of acid dripping, the position of acid dripping, and the unsealing time in real time. At the same time, it isolates technicians from corrosive acid solution and avoids potential safety hazards caused by acid splashing. In addition, since the test bench 1 is in a closed space after being covered with the transparent protective material, the harmful gases generated by acid corrosion are purified and filtered through the ventilation and purification structure and then discharged, further ensuring the safety of the acid dripping and unsealing process.

[0050] The above-mentioned ventilation and purification structure can adopt a purification fan or other purification devices in related technologies, and no further examples will be given in this application.

[0051] In some embodiments, a cleaning mechanism is further provided on the test bench 1. The cleaning structure is arranged at one end of the first guide rail part 2 away from the second guide rail part 3 and below the first guide rail part 2, and the cleaning structure is used to clean the plastic encapsulated components. Here, by way of example, the cleaning mechanism includes an ultrasonic cleaning device and a water outlet pipe 7 arranged on the test bench 1. When the acid dripping and unsealing reaches the later stage, in order to avoid excessive corrosion of the plastic encapsulated components by the acid solution, it is necessary to frequently wash and rinse the acid solution with water. The acid solution is rinsed with the water outlet pipe 7 to maintain the cleanliness of the plastic encapsulated components themselves. The ultrasonic cleaning device can fully remove impurities from the plastic encapsulated components after unsealing, which is beneficial to ensuring the unsealing state of the plastic encapsulated components.

[0052] In some embodiments, a heating element 8 is provided on the test bench 1, and the container 10 for loading the acid solution is placed on the heating element 8 to facilitate heating the acid solution.

[0053] In some embodiments, both the first guide rail part 2 and the second guide rail part 3 are linear guide rail drive structures. This linear guide rail drive structure can be a motor linear drive structure, a ball screw linear drive mechanism, or a hydraulic linear drive mechanism. By way of example, the first guide rail part 2 and the second guide rail part 3 adopt a ball screw linear drive mechanism. The ball screw linear drive structure has high precision and can ensure accurate micro-feeding actions, which is beneficial to ensuring that the acid solution of the suction pipe fitting 6 drips precisely onto the plastic encapsulated components of the first clamping part 4.

[0054] Here, as Figure 3As shown, the first guide rail portion 2 and the second guide rail portion 3 are both provided with a drive motor 9 for driving the screw to rotate. The drive motor 9 can be connected to an external control device through communication in related technologies, and the working state of the drive motor 9 is controlled by the external device. Exemplarily, the external control device and the drive motor 9 can be connected wirelessly or by wire. A plurality of scale markings can be respectively provided on the first guide rail portion 2 and the second guide rail portion 3, and the accuracy of the scale marking is 1 mm. The technician adjusts the forward and reverse rotation of the drive motor 9 to control the reciprocating movement of the first clamping portion 4 on the first guide rail portion 2 and the reciprocating movement of the second clamping portion 5 on the second guide rail portion 3.

[0055] like Figure 4 and Figure 5 As shown, the second clamping part 5 includes a connecting member 51 and a clamping member 52, wherein the connecting member 51 is fixedly connected to the sliding end of the second rail portion 3, and the clamping member 52 is detachably connected to the straw member 6, and the angle of the straw member 6 on the clamping member 52 is adjustable. Here, when a ball screw linear drive mechanism is adopted, the sliding end of the second rail portion 3 is also the nut end connected to the screw drive, and the connecting member 51 protrudes from the second rail portion 3 along the Z direction, and the protruding free end of the connecting member 51 is used for fixed connection with the clamping member 52.

[0056] For example, Figure 4 As shown, the clamping member 52 includes two hingedly connected clamping bodies 521, one of the clamping bodies 521 is fixedly connected to the connecting member 51, and an elastic member 522 is clamped between the two clamping bodies 521. The elastic member 522 has a force to drive the two clamping bodies 521 to clamp the straw member 6.

[0057] Two protruding connecting rods 523 are constructed on the clamping body 521, and the two connecting rods 523 are fixedly connected to the connecting member 51 by fasteners passing through the two. The hinge point 524 of the two clamping bodies 521 is located in the middle upper area of ​​the two, wherein the lower ends of the two clamping bodies 521 are gradually inclined to form a pointed cone shape, so as to maintain the clamping state of the straw member 6; the upper ends of the hinge points 524 of the two clamping bodies 521 are connected by an elastic member 522. When external force is applied to the upper end of the clamping body 521, the elastic member 522 is compressed to reduce the distance between the upper ends of the two clamping bodies 521 and increase the distance between the lower ends, thereby forming an open state, so that the straw member 6 is freed from the clamping constraint.

[0058] In the above embodiment, if Figure 5As shown, the connecting member 51 includes a first connecting plate 511 fixedly connected to the sliding end of the second guide portion 3, and a second connecting plate 512 connected to the first connecting plate 511. The second connecting plate 512 is used for fixedly connecting with the clamping body 521. Both the first connecting plate 511 and the second connecting plate 512 are provided with bent plates 513, and the first connecting plate 511 and the second connecting plate 512 are fixedly connected by docking the two bent plates 513. Here, the bent plate 513 on the second connecting plate 512 is provided with two strip holes 514, and the bent plate 513 of the first connecting plate 511 is provided with positioning holes, and the connection is fixed by fasteners passing through the strip holes 514 and the positioning holes. When the position of the fastener in the strip hole 514 changes, the inclination degree of the second connecting plate 512 relative to the first connecting plate 511 changes, so that the clamping member 52 and the suction pipe member 6 on the clamping member 52 are inclined relative to the horizontal plane. By adjusting the position of the fastener in the strip hole 514, the inclination degree of the clamping member 52 is adjusted to facilitate clamping the suction pipe member 6 more stably on the premise of avoiding interference.

[0059] In some embodiments, a corrosion-resistant friction layer is fixed on the contact surface of the lower ends of the two clamping bodies 521 for clamping the suction pipe member 6. The corrosion-resistant friction layer can be made of fluororubber material or polytetrafluoroethylene material. Setting the corrosion-resistant friction layer can increase the friction force between the clamping body 521 and the suction pipe member 6 and ensure the clamping effect on the suction pipe member 6.

[0060] In addition, in some embodiments, the connecting member 51 is provided with a through hole 515 for passing through the suction pipe member 6. After the suction pipe member 6 passes through the connecting member 51, it is clamped by the clamping member 52. In the clamped state, the suction pipe member 6 is arranged obliquely relative to the horizontal plane. Here, setting the through hole 515 can further provide an axial constraint effect on the suction pipe member 6. The through hole 515, the upper end of the clamping member 52, and the lower end of the clamping member 52 together form a triangular stable structure, effectively enhancing the clamping effect of the clamping member 52 on the suction pipe member 6 and avoiding the dripping acid error caused by the accidental slipping and offset of the suction pipe member 6.

[0061] Furthermore, the plastic encapsulated components located on the first clamping portion 4 are arranged obliquely relative to the horizontal plane. Here, taking Figure 1 as shown as an example, the plastic encapsulated components are gradually inclined downward along the X direction towards the suction pipe member 6. Through this setting, when the suction pipe member 6 drips liquid onto the plastic encapsulated components, the dripping acid liquid will flow back into the container 10 along the surface of the inclined plastic encapsulated components, and the surface of the inclined plastic encapsulated components plays a role of buffering and anti-sputtering.

[0062] It should be noted that the first clamping part 4 can be set with reference to the structure of the aforementioned second clamping part 5. That is, the first clamping part 4 can also adopt the way of hinging two clamping bodies 521, which will not be elaborated in this application. In addition, the angle of the clamping piece 52 on the first clamping part 4 is adjustable. Exemplarily, referring to the connection structure of the first connecting plate 511 and the second connecting plate 512 on the aforementioned connecting piece 51, the clamping piece 52 is connected to the second connecting plate 512, or directly connected to the clamping piece 52 through a damping rotating piece in the related art to realize the adjustable angle of the clamping piece 52 on the first clamping part 4.

[0063] As Figure 6 shown, in some embodiments, the liquid suction pipe 6 includes a rigid dropper 61 and an elastic airbag 63 connected to the dropper 61. The dropper 61 is provided with scale marks. Under the action of external force drive, the elastic airbag 63 compresses to make the dropper 61 in a negative pressure liquid suction state; or, the elastic airbag 63 expands to make the dropper 61 in a pressurized liquid dropping state.

[0064] Here, the elastic airbag 63 and the dropper 61 are connected through a connecting pipe 62. The elastic airbag 63 can be away from the acid liquid opening process. The technician controls the extraction or liquid dropping state of the dropper 61 by operating the elastic airbag 63 at a certain distance from the dropper 61, effectively reducing the safety hazard of acid liquid splashing.

[0065] In some embodiments, the extraction and liquid dropping operations of the dropper 61 can also be realized by other means. For example, the dropper 61 is connected to a high-precision micro air pump, and the micro air pump is connected to an external control device. The suction and exhaust actions of the micro air pump are controlled to realize the switching of the suction state of the dropper 61.

[0066] It should be noted that during the up and down movement of the first clamping part 4 along the Y direction, the nozzle of the dropper 61 in the clamped state is always set facing the container 10 filled with acid liquid; when the second clamping part 5 moves leftward along the X direction to the lower part of the second clamping part 5, the clamped plastic encapsulated component is set facing the nozzle of the dropper 61. This setting is beneficial to ensure the full use of acid liquid for the opening and corrosion work, and can prevent the acid liquid from splashing outside the container 10 and corroding and damaging the test bench 1.

[0067] Based on the same inventive concept, the present application also provides a chemical opening method for plastic encapsulated components, which is applicable to the plastic encapsulated component chemical opening device described in any of the above embodiments, as Figure 7 shown, the method includes:

[0068] Step 100, place a reagent at a preset temperature in the container 10, and clamp the plastic encapsulated component to be opened to the second clamping part 5;

[0069] Step 200, adjust the second clamping part 5 to slide downward along the second guide rail part 3 until the suction pipe part 6 is immersed in the reagent, control the suction pipe part 6 to suck the reagent in the container 10, and adjust the second clamping part 5 to slide upward along the second guide rail part 3 until the suction pipe part 6 disengages from the container 10;

[0070] Step 300, adjust the first clamping part 4 to slide along the first guide rail part 2 in a direction close to the second clamping part 5 until the plastic encapsulated component is located below the outlet port of the suction pipe part 6;

[0071] Step 400, control the suction pipe part 6 to drip the reagent onto the plastic encapsulated component.

[0072] In the above method, in order to ensure sufficient corrosion of the acid solution and avoid excessive corrosion of the plastic encapsulated component, steps 200, 300 and 400 can be cycled multiple times. When dripping the reagent onto the plastic encapsulated component each time, observe the corrosion degree of the acid solution on the plastic encapsulated component, and judge whether to continue dripping or stop dripping for subsequent operations according to the corrosion degree.

[0073] In some embodiments, after step 400, it further includes placing the plastic encapsulated component in an ultrasonic cleaning device for thorough cleaning and impurity removal.

[0074] It should be noted that the method of the embodiment of the present application can be executed by a single device, such as a computer or a server, etc. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In this case of a distributed scenario, one of the multiple devices can only execute one or more steps of the method of the embodiment of the present application, and these multiple devices will interact with each other to complete the described method.

[0075] It should be noted that some embodiments of the present application are described above. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be executed in a different order from that in the above embodiments and still achieve the desired result. Additionally, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired result. In certain embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0076] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application shall be included within the protection scope of the present application.

Claims

1. A chemical unsealing device for plastic-encapsulated components, characterized in that, Comprising: A device clamping structure, including a first clamping portion for clamping the plastic encapsulated component and a first guide rail portion extending in the horizontal direction, and the first clamping portion is slidably connected to the first guide rail portion; A liquid dropping clamping structure, including a second clamping portion for clamping the liquid suction component and a second guide rail portion extending in the vertical direction, and the liquid suction component is slidably connected to the second guide rail portion, and a container for loading the reagent is provided below the second guide rail portion; Wherein, under the action of an external force drive, the second clamping portion slides on the second guide rail portion to enable the liquid suction component to extract the reagent from the container, the first clamping portion slides on the first guide rail portion to below the second clamping portion, and the liquid suction component drops the extracted reagent onto the plastic encapsulated component of the first clamping portion.

2. The chemical unsealing device for plastic-encapsulated components according to claim 1, characterized in that, Further comprising: A test bench for loading and fixing the device clamping structure and the liquid dropping clamping structure, the outer cover of the test bench is provided with a transparent protective material, and the test bench is communicated with the outside through a ventilation and purification structure.

3. The chemical unsealing device for plastic-encapsulated components according to claim 1, wherein, Further comprising a cleaning structure, which is arranged at one end of the first guide rail portion away from the second guide rail portion and below the first guide rail portion, and the cleaning structure is used for cleaning the plastic encapsulated component.

4. A chemical unsealing device for plastic-encapsulated components according to claim 1, characterized in that, The second clamping portion includes a connecting member and a clamping member, the connecting member is fixedly connected to the sliding end of the second guide rail portion, the clamping member is detachably connected to the liquid suction component, and the angle of the liquid suction component on the clamping member is adjustable.

5. The chemical unsealing device for plastic encapsulated components according to claim 4, wherein, The clamping member includes two clamping bodies hinged together, one of the clamping bodies is fixedly connected to the connecting member, and an elastic member is clamped between the two clamping bodies, and the elastic member has a force for driving the two clamping bodies to clamp the liquid suction component.

6. The chemical unsealing device for plastic-encapsulated components according to claim 5, wherein A through hole for passing through the liquid suction component is provided on the connecting member, and the liquid suction component passes through the connecting member and is clamped by the clamping member. In the clamped state, the liquid suction component is arranged obliquely relative to the horizontal plane.

7. The chemical unsealing device for plastic encapsulated components according to claim 6, characterized in that, The plastic encapsulated component located on the first clamping portion is arranged obliquely relative to the horizontal plane.

8. A chemical opening device for plastic encapsulated components according to claim 1, characterized in that, The liquid suction component includes a rigid dropper and an elastic air bag connected to the dropper, and a scale mark is provided on the dropper. Under the action of an external force drive, the elastic air bag compresses to make the dropper in a negative pressure liquid extraction state; or, the elastic air bag expands to make the dropper in a pressurized liquid dropping state.

9. The chemical unsealing device for plastic-encapsulated components according to claim 1, characterized in that, Further comprising a heating element, and the container is placed on the heating element.

10. A chemical unsealing method for plastic-encapsulated components, characterized in that, Applicable to the chemical unsealing device for the plastic encapsulated component as described in any one of claims 1-9, the method comprising: Placing a reagent at a preset temperature in the container, and clamping the plastic encapsulated component to be unsealed to the second clamping portion; Adjusting the second clamping portion to slide downward along the second guide rail portion until the liquid suction component is immersed in the reagent, controlling the liquid suction component to suck the reagent in the container, and adjusting the second clamping portion to slide upward along the second guide rail portion until the liquid suction component is separated from the container; Adjusting the first clamping portion to slide along the first guide rail portion in a direction close to the second clamping portion until the plastic encapsulated component is located below the liquid outlet of the liquid suction component; Controlling the liquid suction component to drip the reagent onto the plastic encapsulated component.

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