Chip dismounting device

Abstract

The utility model relates to the technical field of chips, and discloses a chip dismounting device which comprises a base, a limiting mechanism, a cutting piece, a driving mechanism and two sliding blocks, the limiting mechanism is arranged on the base, and the limiting mechanism is used for fixing a chip; the two sliding blocks are arranged on the base and on the two sides of the limiting mechanism in the first direction, and the sliding blocks can slide on the base in the second direction; the two ends of the cutting piece are each connected with a sliding block. The driving mechanism is arranged on the base and is in transmission connection with the sliding blocks, the driving mechanism can drive the sliding blocks to slide in the second direction, and then the cutting piece is driven to cut the filling layer from one side of the chip. According to the utility model, the chip is automatically disassembled by using a mechanical structure, a cutter does not need to be manually operated, the disassembling efficiency of the chip shell cover can be improved, and the cutting part only cuts the filling layer by controlling the cutting advancing path of the cutting part; therefore, the overall damage of the chip caused by cutting the electronic components around the bare chip module by the cutting piece is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chips, in particular to a chip disassembly device. Background Art

[0002] In the chip manufacturing process, the chip needs to be tested for thermal resistance parameters in the early stage of mass production. When testing the thermal resistance parameters, the shell cover of the chip needs to be removed, and the bare chip module needs to be exposed on the outside to achieve better heat dissipation effect and facilitate the thermal resistance parameter testing of the chip. At present, generally, tools such as carving knives or blades are used to manually scrape the filling glue in the gap along the joint gap between the shell cover and the chip substrate, so that the shell cover is separated from the chip substrate, and then tweezers are used to pry open the entire shell cover along the gap to complete the removal of the shell cover. However, the use of manual tools to remove the shell cover is inefficient, and it is easy to damage the distributed capacitors and other electronic components around the bare chip module during operation, causing overall damage to the chip. Utility Model Content

[0003] The utility model aims to provide a chip disassembly device, which improves the removal efficiency of the chip shell cover and avoids the components around the bare chip module from being damaged when the shell cover is removed.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The chip disassembly device of the utility model has a first direction and a second direction intersecting each other, the chip comprises a substrate and a shell cover stacked on each other, and a filling layer is provided between the substrate and the shell cover, and the chip disassembly device comprises:

[0006] Base;

[0007] A limiting mechanism, disposed on the base, and used to fix the chip;

[0008] Two sliding blocks are arranged on the base and on both sides of the limiting mechanism along the first direction, and the sliding blocks can slide along the second direction on the base;

[0009] A cutting piece, both ends of which are connected to a slider respectively; and

[0010] The driving mechanism is disposed on the base and is respectively connected to each of the sliders in a transmission manner. The driving mechanism can drive the sliders to slide along the second direction, thereby driving the cutting member to cut the filling layer from one side of the chip.

[0011] The chip is automatically disassembled through a mechanical structure without the need for manual operation of the tool, which can not only improve the efficiency of removing the chip cover, but also accurately control the cutting path of the cutting piece through the driving mechanism, so that the cutting piece only cuts the filling layer between the chip cover and the substrate, thereby avoiding the cutting piece cutting the electronic components around the bare chip module and causing overall damage to the chip.

[0012] In some embodiments, the limiting mechanism includes:

[0013] a first stopper bar, disposed on the base, wherein the length direction of the first stopper bar extends along the first direction, and a side surface of the first stopper bar along the first direction is a first stopper surface for cooperating and abutting against a side surface of the chip; and

[0014] The fixing component is arranged on the base, and the fixing component is provided with a pressing portion for pressing on the chip.

[0015] The first stop surface of the first stop bar cooperates and abuts against one side surface of the chip to stop the chip from moving on the base in a direction perpendicular to the first direction, and the fixing component presses against the chip to prevent the chip from moving or tilting when the cutting piece cuts the filling layer from one side of the chip, thereby ensuring that the chip is firmly fixed on the base.

[0016] In some embodiments, the fixing member comprises:

[0017] A fixing seat, fixed on the base;

[0018] A pressing sheet, one end of which is movably connected to the fixing seat, and the other end of which extends toward a side away from the fixing seat to form the pressing portion; and

[0019] An elastic member has one end connected to the fixing seat, and the other end of the elastic member abuts against the pressing sheet to provide the pressing portion with an elastic force to press against the chip.

[0020] A fixing seat is arranged on the base, which serves as a mounting base for the pressing sheet and the elastic member; the pressing sheet is movable on the fixing seat, so that the pressing portion of the pressing sheet can be separated from the chip, thereby releasing the pressing and fixing of the chip, and facilitating the placement or removal of the chip; the movable pressing sheet can also make the pressing portion press against the chip, and the elastic member provides the pressing portion with an elastic force to press the chip tightly, so that the chip is firmly fixed on the base, thereby facilitating the determination of the position of the pressing portion of the pressing sheet according to the use requirements, and making the chip fixing and releasing operations more flexible.

[0021] In some embodiments, the limiting mechanism further includes a second stop bar, which is disposed on the base and perpendicular to the first stop bar, and one side of the second stop bar along the first direction has a second stop surface for cooperating and abutting against a side surface of the chip.

[0022] The second stop surface of the second stop bar cooperates with the side surface of the chip and cooperates with the first stop bar to limit and fix the adjacent two sides of the chip, thereby limiting the position of the chip more accurately.

[0023] In some embodiments, a plurality of distance scale lines are provided on the second baffle bar along the length direction of the second baffle bar.

[0024] The distance scale lines on the second stop bar allow the cutting progress of the cutting piece to be observed intuitively and conveniently, so as to accurately control the progress of the cutting piece and prevent the cutting piece from cutting the electronic components around the bare chip module.

[0025] In some embodiments, the cutting element is a cutting wire.

[0026] Since the cutting line can be made relatively fine, using the cutting line for cutting makes it easier for the cutting line to cut into the filling layer.

[0027] In some embodiments, both ends of the cutting member are provided with fixing blocks, the fixing blocks are provided on the slider, and the fixing blocks can slide along the third direction on the slider; a first locking member for locking the fixing block is installed on the slider;

[0028] Wherein, the third direction is perpendicular to the first direction and the second direction respectively.

[0029] By sliding the fixing block along the third direction, the height position of the cutting piece in the third direction can be adjusted so that the height position of the cutting piece matches the height position of the chip filling layer, making the cutting piece suitable for disassembling chips of various specifications.

[0030] In some embodiments, the driving mechanism comprises:

[0031] Two connecting rods, the connecting rods are extended along the second direction, and the two connecting rods are connected to one of the sliding blocks in a one-to-one correspondence;

[0032] A power input assembly is respectively connected to the connecting rods in a transmission manner;

[0033] The power input assembly drives the connecting rod to rotate or move along the second direction, thereby driving the sliding block to slide on the base along the second direction.

[0034] The slider is connected by a connecting rod and driven to slide, which facilitates the arrangement of the power input assembly on the base, avoids the power input assembly interfering with the movement of the cutting piece, and facilitates reserving sufficient space for the placement of the chip.

[0035] In some embodiments, the power input assembly comprises:

[0036] Two transmission gear sets are connected to the two connecting rods in a one-to-one correspondence, and the two transmission gear sets are transmission-connected to each other;

[0037] The rocker is in driving connection with one of the transmission gear sets, and each of the transmission gear sets can be driven by rotating the rocker.

[0038] Using a rocker to drive two transmission gear sets to move simultaneously ensures the synchronization of the movement of the two transmission gear sets, thereby ensuring the synchronization of the sliding of the two sliders along the second direction, avoiding the deflection of the cutting member during movement, which leads to inconsistent cutting progress of the filling layer.

[0039] In some embodiments, two slide rails are further provided on the base, and the two slide rails correspond to each of the sliders in a one-to-one manner to form sliding guides.

[0040] By arranging the slide rail on the base, the sliding of the slider can be guided to avoid the slider from deflecting during the sliding process, which causes the distance between the two sliders to change, and then causes the cutting direction of the cutting piece to change, affecting the cutting effect of the cutting piece.

[0041] Compared with the prior art, the chip disassembly device of the present utility model has the following beneficial effects:

[0042] The chip disassembly device of the embodiment of the utility model includes a base, two sliders, a limiting mechanism, a cutting piece and a driving mechanism. The chip to be disassembled is fixed on the base by the limiting mechanism, and the cutting piece is connected between the two sliders. The slider is driven to slide by the driving mechanism, and the cutting piece is driven to cut the filling layer between the shell cover of the chip and the substrate from one side of the chip. In the process of the slider driving the cutting piece to approach the chip, the cutting piece cuts the filling layer between the shell cover of the chip and the substrate of the chip, so that the shell cover of the chip is separated from the substrate, and the edge of one side of the shell cover of the chip is disassembled. The driving mechanism drives the slider to move in the reverse direction, and the slider drives the cutting piece to move in the direction away from the chip. After the cutting piece is away from the chip, the placement direction of the chip can be adjusted, and the cutting piece repeats the process of cutting the filling layer between the chip shell cover and the substrate, and the disassembly process of each edge of the chip shell cover is completed in sequence, so that the shell cover of the chip is completely separated from the substrate, and the disassembly of the chip shell cover is completed. The utility model uses a mechanical structure to automatically disassemble the chip without manual operation of the tool, which can not only improve the removal efficiency of the chip cover, but also accurately control the cutting path of the cutting piece through the driving mechanism, so that the cutting piece only cuts the filling layer between the chip cover and the substrate, thereby avoiding the cutting piece cutting the electronic components around the bare chip module and causing overall damage to the chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 is a schematic diagram of the structure of the chip disassembly device according to an embodiment of the present application;

[0044] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0045] Figure 3 is a front view schematic diagram of the chip disassembly device according to an embodiment of the present application;

[0046] Figure 4 is a schematic top view of the chip disassembly device according to an embodiment of the present application;

[0047] Figure 5 is a side view schematic diagram of the chip removal device according to an embodiment of the present application;

[0048] Figure 6 It is a schematic diagram of the structure of the fixing component in the embodiment of the present application.

[0049] Numbers in the figure:

[0050] 1. Base; 2. Slider; 21. First locking member; 22. Second locking member; 3. Limiting mechanism; 31. First stop bar; 311. First stop surface; 32. Fixing member; 321. Fixing seat; 322. Pressing sheet; 3221. Pressing portion; 323. Elastic member; 33. Second stop bar; 331. Second stop surface; 332. Distance scale line; 4. Cutting member; 41. Fixing block; 5. Driving mechanism; 51. Connecting rod; 52. Rocker; 53. Protective cover; 6. Slide rail; 7. Chip; 71. Shell cover; 72. Substrate;

[0051] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0052] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0055] The embodiment of the utility model provides a chip disassembly device, wherein the chip 7 comprises a substrate 72 and a shell cover 71 which are stacked on each other, and a filling layer is provided between the substrate 72 and the shell cover 71 . The chip disassembly device is used to disassemble the shell cover 71 of the chip 7 and separate the shell cover 71 from the substrate 72 .

[0056] See also Figure 1 - Figure 5 As shown, the chip disassembly device has an intersecting first direction X and a second direction Y, and the chip disassembly device includes a base 1, a limiting mechanism 3, a cutting piece 4, a driving mechanism 5 and two sliders 2. The limiting mechanism 3 is arranged on the base 1, and the limiting mechanism 3 is used to fix the chip 7; the two sliders 2 are arranged on the base 1, and are arranged on both sides of the limiting mechanism 3 along the first direction X, and the sliders 2 can slide along the second direction Y on the base 1; a slider 2 is respectively connected to both ends of the cutting piece 4; the driving mechanism 5 is arranged on the base 1, and the driving mechanism 5 is respectively connected to each slider 2, and the driving mechanism 5 can drive the slider 2 to slide along the second direction Y, thereby driving the cutting piece 4 to cut the filling layer from one side of the chip 7.

[0057] In the process of the slider 2 driving the cutting piece 4 to approach the chip 7, the cutting piece 4 gradually contacts the filling layer between the shell cover 71 of the chip 7 and the substrate 72 of the chip 7 and cuts the filling layer, so that the shell cover 71 of the chip 7 is separated from the substrate 72, and the edge of one side of the shell cover 71 of the chip 7 is disassembled. The driving mechanism 5 drives the slider 2 to move in the opposite direction, and the slider 2 drives the cutting piece 4 to move in the direction away from the chip 7. After the cutting piece 4 is away from the chip 7, the placement direction of the chip 7 can be adjusted, and the cutting process of the filling layer between the chip shell cover 71 and the substrate 72 by the cutting piece 4 is repeated, and the disassembly process of each edge of the chip shell cover 71 is completed in sequence, so that the shell cover 71 of the chip 7 is completely separated from the substrate 72, and the disassembly of the chip shell cover 71 is completed.

[0058] The chip 7 is automatically disassembled using a mechanical structure without the need for manual operation of the tool, which can not only improve the removal efficiency of the chip shell cover 71, but also accurately control the cutting path of the cutting piece 4 through the driving mechanism 5, so that the cutting piece 4 only cuts the filling layer between the chip shell cover 71 and the substrate 72, thereby avoiding the cutting piece 4 cutting the electronic components around the bare chip module and causing overall damage to the chip.

[0059] It should be noted that the chip disassembly device of the present invention can be applied to disassembling any type of chip with a shell cover, including but not limited to CPU chips, GPU chips, etc.

[0060] In some embodiments, the first direction X is substantially perpendicular to the second direction Y, wherein the angle between the first direction X and the second direction Y in the range of 89° to 91° can be regarded as substantially perpendicular. Figure 1 In some embodiments, the first direction X and the second direction Y are perpendicular to each other, and the angle between the first direction X and the second direction Y is 90°.

[0061] See also Figure 1 As shown, the base 1 is a rectangular plate-shaped structure, which is used for bearing the load-limiting mechanism 3, the cutting member 4, the driving mechanism 5, the slider 2 and the chip 7. In some embodiments, two slide rails 6 are also provided on the base 1, and the two slide rails 6 correspond to each slider 2 one by one to provide a sliding guide. By providing the slide rails 6 on the base 1, the sliding of the slider 2 can be guided to avoid the slider 2 from deflecting during the sliding process, which causes the distance between the two sliders 2 to change, and then causes the cutting direction of the cutting member 4 to change, affecting the cutting effect of the cutting member. The length direction of the slide rail 6 extends along the second direction Y.

[0062] See also Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the limiting mechanism 3 includes a first stopper 31 and a fixing component 32. The first stopper 31 is provided on the base 1. The length direction of the first stopper 31 extends along the first direction X. One side of the first stopper 31 along the first direction X is a first stopper surface 311 for cooperating with and abutting against one side of the chip 7. The fixing component 32 is provided on the base 1. The fixing component 32 is provided with a pressing portion 3221 for pressing against the chip 7. The pressing portion 3221 provides a pressing force to the chip 7. The first stopper 31 is in the shape of a long strip. The extension direction of the first stopper 31 is parallel to the extension direction of the cutting member 4. The first stopper surface 311 of the first stopper 31 cooperates with and abuts against one side of the chip 7 to stop the chip 7 from moving in a direction perpendicular to the first direction X on the base 1. The fixing component 32 presses against the chip 7 to prevent the chip 7 from moving or tilting when the cutting member 4 cuts the filling layer from one side of the chip 7, so that the chip 7 is fixed firmly on the base 1.

[0063] See also Figure 6 As shown, in some embodiments, the fixing component 32 includes a fixing seat 321, a pressing plate 322 and an elastic member 323, the fixing seat 321 is fixed on the base 1; one end of the pressing plate 322 is movably connected to the fixing seat 321, and the other end of the pressing plate 322 extends toward a side away from the fixing seat 321 to form a pressing portion 3221; one end of the elastic member 323 is connected to the fixing seat 321, and the other end of the elastic member 323 presses against the pressing plate 322 to provide the pressing portion 3221 with an elastic force to press against the chip 7. A fixing seat 321 is provided on the base 1 as a mounting base for the pressing piece 322 and the elastic member 323; the pressing piece 322 is movable on the fixing seat 321, so that the pressing piece 322 can freely rotate or move up and down on the fixing seat 321, so that the pressing portion 3221 of the pressing piece 322 can be separated from the chip 7, thereby releasing the pressing and fixing of the chip 7, and facilitating the placement or removal of the chip 7; the movable pressing piece 322 can also make the pressing portion 3221 press on the chip 7, and the elastic member 323 provides the pressing portion 3221 with an elastic force to press against the chip 7, so that the chip 7 is firmly fixed on the base 1, thereby facilitating the determination of the position of the pressing portion 3221 of the pressing piece 322 according to the use requirements, and making the fixing and releasing operations of the chip 7 more flexible. In some embodiments, the fixing seat 321 is disposed on one side of the first direction X of the first stop bar 31, and the chip 7 is placed on the other side of the first direction X of the first stop bar 31; when the chip 7 is not placed, the pressing sheet 322 can be placed on the first stop bar 31, or on one side of the first stop bar 31, so as not to interfere with the placement of the chip 7 on the other side of the first stop bar 31. The elastic member is a spring, which is sleeved on the fixing seat 321 and fixed to the fixing seat 321 at one end. When the spring is in an uncompressed state, the initial distance between the pressing sheet 322 and the base 1 is less than the thickness of the chip 7. When the pressing sheet 322 is lifted upward, the spring is in a compressed state until the distance between the pressing sheet 322 and the base 1 is greater than the thickness of the chip 7, and the spring is still in a compressed state. The pressing sheet 322 is rotated to the side of the first stop bar 31 extending from the top of the first stop bar 31 to the first stop bar 31 where the chip 7 is placed, and the pressing sheet 322 is released. At this time, the spring is still in a compressed state, and the spring drives the pressing sheet 322 to abut against the surface of the chip 7, so that the chip 7 is fixed to the base 1.

[0064] See also Figure 1 , Figure 3 and Figure 4As shown, in some embodiments, the limiting mechanism 3 also includes a second stop bar 33, which is arranged on the base 1 and is perpendicular to the first stop bar 31. The second stop bar 33 has a second stop surface 331 on one side along the first direction X for cooperating with and abutting against a side surface of the chip 7. The second stop surface 331 of the second stop bar 33 cooperates with and abuts against the side surface of the chip 7, and cooperates with the first stop bar 31, so that the adjacent two sides of the chip 7 can be limited and fixed, so that the position of the chip 7 is more accurately limited. The end of the second stop bar 33 abuts against the first stop bar 31, and the second stop bar 33 and the first stop bar 31 form an L-shaped structure, which limits the corner position of the chip 7 and can be applicable to limiting chips of different sizes. The second stop bar 33 and the first stop bar 31 can be integrally formed. In other embodiments, for chips of fixed specifications, the position of the chip can also be limited by limiting the four sides of the chip.

[0065] In some embodiments, a plurality of distance scale lines 332 are provided on the second baffle bar 33 along the length direction of the second baffle bar 33, so as to facilitate intuitive observation of the cutting progress of the cutting piece and accurately control the moving progress of the cutting piece. The cutting of one side of the chip can be stopped by cutting the filling layer between the shell cover 71 and the substrate 72, so as to prevent the cutting piece 4 from cutting the electronic components around the bare chip module.

[0066] In some embodiments, the cutting member 4 is a cutting wire. Compared with a cutting blade, a cutting wire can be made finer, and using the cutting wire for cutting facilitates the cutting wire to cut into the filling layer.

[0067] See also Figure 1 and Figure 2 As shown, in some embodiments, both ends of the cutting member 4 are provided with a fixing block 41, the fixing block 41 is arranged on the slider 2, and the fixing block 41 can slide along the third direction Z on the slider 2; the slider 2 is provided with a first locking member 21 for locking the fixing block 41; wherein the third direction Z is perpendicular to the first direction X and the second direction Y respectively, and the third direction Z is the thickness direction of the base 1. By sliding the fixing block 41 along the third direction Z, the height position of the cutting member 4 in the third direction Z can be adjusted, so that the height position of the cutting member 4 is adapted to the height position of the filling layer of the chip 7, so that the cutting member 4 is suitable for disassembling chips of various sizes and height specifications. The first locking member 21 is a positioning pin. In some embodiments, the slider 2 is hollow inside to form a receiving cavity, and the fixing block 41 is arranged in the receiving cavity and can move in the receiving cavity. The first locking member 21 is inserted into the slider 2 from one side of the slider 2 and abuts on the fixing block 41, thereby achieving the fixing of the fixing block 41 in the slider 2. The slider 2 is also provided with an opening, and the end of the cutting member 4 passes through the opening into the slider 2 and is connected to the fixing block 41. The opening is strip-shaped, and sufficient space is reserved for the movement of the cutting member 4 in the third direction Z.

[0068] See also Figure 1 As shown, in some embodiments, the driving mechanism 5 includes a power input assembly and two connecting rods 51, the connecting rods 51 are extended along the second direction Y, and the two connecting rods 51 are connected to a slider 2 in a one-to-one correspondence; the power input assembly is respectively connected to each connecting rod 51 in transmission connection; the power input assembly drives the connecting rod 51 to rotate or move along the second direction Y, thereby driving the slider 2 to slide along the second direction Y on the base 1. The slider 2 is connected and driven to slide by the connecting rod 51, which facilitates the arrangement of the power input assembly on the base 1, avoids the power input assembly from interfering with the movement of the cutting member 4, and facilitates the reservation of sufficient space for the placement of the chip 7. In some embodiments, the connecting rod 51 is a screw, and the slider 2 can be threadedly assembled on the connecting rod 51. The power input assembly drives the connecting rod 51 to rotate, so that the slider 2 moves along the connecting rod 51, thereby realizing the sliding of the slider 2 along the second direction Y on the base 1. In other embodiments, the connecting rod 51 is arranged through the slider 2, and the slider 2 can move freely on the connecting rod 51. A second locking member 22 for locking the slider 2 is arranged on the slider 2, and the slider 2 is fixed at a set position on the connecting rod 51 by the second locking member 22. The power input assembly drives the connecting rod 51 to move along the second direction Y, and the connecting rod 51 drives the slider 2 to move synchronously. With this structural arrangement, the position of the slider 2 on the connecting rod 51 can be manually adjusted in advance according to the position of the chip 7 on the base 1, so that the cutting piece 4 is close to the outer edge of the chip 7, and then the slider 2 is fixed on the connecting rod 51 by the second locking member 22, and then the connecting rod 51 and the slider 2 are driven to move by the power input assembly, thereby reducing the workload of the power input assembly. The second locking member 22 can be inserted into the slider 2 from the top of the slider 2 and pressed against the connecting rod 51 to fix the connecting rod 51 and the slider 2. The second locking member 22 is a positioning pin.

[0069] In some embodiments, the power input assembly includes a rocker and two transmission gear sets, the two transmission gear sets are connected to the two connecting rods 51 in a one-to-one correspondence, and the two transmission gear sets are connected in transmission; the rocker 52 is connected in transmission with a transmission gear set, and the rotation of the rocker 52 can drive each transmission gear set. Using a rocker 52 to drive the two transmission gear sets to move at the same time ensures the synchronization of the movement of the two transmission gear sets, thereby ensuring the synchronization of the sliding of the two sliders 2 along the second direction Y, avoiding the deflection of the cutting member 4 during the movement, and causing the cutting progress of the filling layer to be inconsistent. In some embodiments, the two transmission gear sets can be connected by a synchronization rod to ensure the synchronization of the movement of the two transmission gear sets. In other embodiments, the rocker 52 can be connected to the two transmission gear sets at the same time, and the rocker 52 is rotated to make the two transmission gear sets move synchronously. A thread is set on the outer peripheral side of the connecting rod 51, and a gear is fixed on the rocker 52. The gear is engaged with the thread on the connecting rod 51, and the rocker 52 is rotated to drive the gear to rotate, thereby driving the connecting rod 51 to move along the second direction Y.

[0070] In some embodiments, the driving mechanism 5 further includes a protective cover 53 , which is disposed at the connection between the connecting rod 51 and the transmission gear set, and the rocker arm 51 passes through the protective cover 53 and is connected to the transmission gear set.

[0071] The working process of the utility model is:

[0072] Place the entire device on a flat and spacious work platform, and move the pressing plate 322 to one side of the first baffle 31 so as not to interfere with the placement of the chip 7. Use a suction pen to suck up the chip 7, and place it so that one right-angled side of the chip 7 coincides with the connection between the first baffle 31 and the second baffle 33, so that the two side edges of the chip 7 are respectively close to the first stop surface 311 of the first baffle 31 and the second stop surface 331 of the second baffle 33. Rotate the pressing plate 322 onto the chip 7, and press and fix the chip 7 on the base 1. Move the sliders 2 on both sides so that the cutting line coincides with the right-angled side on the outside of the chip 7, and use a screwdriver to lock the second locking piece 22 above the sliders 2 on both sides, and fix the sliders 2 to the connecting rod 51 to prevent the sliders 2 from shaking during operation.

[0073] By adjusting the position of the fixed block 41 inside the slider 2, the cutting line is adjusted to move up and down along the third direction Z inside the slider 2, so that the cutting line coincides with the height of the filling layer between the outer shell cover of the chip 7 and the substrate, and a screwdriver is used to lock the first locking piece 21 on the outer side of the slider 2 on both sides to fix the height of the cutting line.

[0074] Rotating the rocker 52 drives the threaded meshing movement of the gear and the connecting rod 51, converting the torque input by the system rotation into the force of the axial movement of the connecting rod 51. When the cutting line contacts the filling layer outside the chip 7, the cutting line is subjected to resistance in the opposite direction of movement, and the filling colloid in the filling layer is subjected to the same force as the movement direction. By rotating the rocker, the cutting line is provided with power in the same direction of movement, and this force overcomes the force of the cutting line and the filling colloid in the filling layer of the chip 7, thereby achieving the purpose of cutting. Through the identification information of the distance scale line 332 on the second baffle 33, the path of the control cutting line can be obtained to protect the peripheral components of the bare chip of the chip 7 from damage, and the cutting of the filling layer on one side of the chip can be completed accurately.

[0075] The rocker 52 is rotated in the opposite direction to move the cutting line away from the chip 7; the pressing sheet 322 is rotated to one side of the first stop bar 31 to release the pressing effect on the chip 7. The placement direction of the chip 7 is adjusted, and the above-mentioned cutting action on the chip 7 is repeated to complete the cutting of the filling layer on the other side of the chip 7. In this way, the cutting of the filling layer on the other side of the chip 7 is completed in sequence, thereby realizing the removal of the chip cover.

[0076] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A chip disassembly device, having a first direction (X) and a second direction (Y) intersecting each other, wherein the chip (7) comprises a substrate (72) and a shell cover (71) stacked on each other, and a filling layer is provided between the substrate (72) and the shell cover (71), characterized in that: The chip disassembly device comprises: Base (1); A limiting mechanism (3) is arranged on the base (1), and the limiting mechanism (3) is used to fix the chip (7); Two sliding blocks (2) are arranged on the base (1) and on both sides of the limiting mechanism (3) along the first direction (X), and the sliding blocks (2) can slide along the second direction (Y) on the base (1); A cutting piece (4), wherein both ends of the cutting piece (4) are respectively connected to a slider (2); and A driving mechanism (5) is arranged on the base (1), and the driving mechanism (5) is respectively connected to each of the sliders (2) in a transmission manner. The driving mechanism (5) can drive the sliders (2) to slide along the second direction (Y), thereby driving the cutting member (4) to cut the filling layer from one side of the chip (7).

2. The chip disassembly device according to claim 1, characterized in that: The limiting mechanism (3) comprises: a first stopper (31) disposed on the base (1), wherein the length direction of the first stopper (31) extends along the first direction (X), and a side surface of the first stopper (31) along the first direction (X) is a first stopper surface (311) for cooperating and abutting against a side surface of the chip (7); and A fixing component (32) is arranged on the base (1), and the fixing component (32) is provided with a pressing portion (3221) for pressing against the chip (7).

3. The chip disassembly device according to claim 2, characterized in that: The fixing component (32) comprises: A fixing seat (321) fixed on the base (1); A pressing sheet (322), one end of which is movably connected to the fixing seat (321), and the other end of which extends toward a side away from the fixing seat (321) to form the pressing portion (3221); and One end of the elastic member (323) is connected to the fixing seat (321), and the other end of the elastic member (323) is pressed against the pressing sheet (322) to provide the pressing portion (3221) with an elastic force to press against the chip (7).

4. The chip disassembly device according to claim 2, characterized in that: The limiting mechanism (3) further comprises a second stop bar (33), the second stop bar (33) being arranged on the base (1) and being perpendicular to the first stop bar (31), and the second stop bar (33) having a second stop surface (331) on one side along the first direction (X) for cooperating and abutting against a side surface of the chip (7).

5. The chip disassembly device according to claim 4, characterized in that: A plurality of distance scale lines (332) are provided on the second baffle bar (33) along the length direction of the second baffle bar (33).

6. The chip disassembly device according to claim 1, characterized in that: The cutting element (4) is a cutting wire.

7. The chip disassembly device according to claim 1, characterized in that: Both ends of the cutting member (4) are provided with a fixing block (41), the fixing block (41) is arranged on the slider (2), and the fixing block (41) can slide along a third direction (Z) on the slider (2); a first locking member (21) for locking the fixing block (41) is installed on the slider (2); The third direction (Z) is perpendicular to the first direction (X) and the second direction (Y).

8. The chip disassembly device according to claim 1, characterized in that: The driving mechanism (5) comprises: two connecting rods (51), the connecting rods (51) extending along the second direction (Y), and the two connecting rods (51) are connected to one of the sliding blocks (2) in a one-to-one correspondence; A power input assembly is respectively connected in transmission with each of the connecting rods (51); The power input assembly drives the connecting rod (51) to rotate or move along the second direction (Y), thereby driving the sliding block (2) to slide along the second direction (Y) on the base (1).

9. The chip disassembly device according to claim 8, characterized in that: The power input assembly comprises: Two transmission gear sets are connected to the two connecting rods (51) in a one-to-one correspondence, and the two transmission gear sets are transmission-connected to each other; The rocker (52) is in driving connection with one of the transmission gear sets, and each of the transmission gear sets can be driven by rotating the rocker (52).

10. The chip disassembly device according to claim 1, characterized in that: The base (1) is also provided with two slide rails (6), and the two slide rails (6) correspond one-to-one with each of the slide blocks (2) to form sliding guides.

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