Chip cover opening machine

Abstract

The invention discloses a chip uncovering machine which comprises a box body, a movable sliding table, a positioning jig, a pair of uncovering assemblies, an uncovering driving mechanism, a heating assembly and a heating driving mechanism. Wherein a smoke outlet is formed in the top of the box body; the movable sliding table is arranged in the box body; the positioning jig is arranged on the movable sliding table, can move along with the movable sliding table and is used for placing a chip; the pair of cover opening assemblies are arranged on the two sides of the positioning jig and are used for stripping a chip cover of the chip; the cover opening driving mechanism is arranged on the movable sliding table and used for driving the pair of cover opening assemblies to act; the heating assembly is arranged above the movable sliding table; the heating driving mechanism is connected with the box, and the output end of the heating driving mechanism is connected with the heating assembly and can drive the heating assembly to move. The cover opening device can be suitable for opening the covers of the chips with metal upper covers in various sizes and shapes; the automation degree is greatly improved, the chip uncovering efficiency is further improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of chip decapping, and in particular to a chip decapping machine. Background Art

[0002] Chips are precision electronic devices. To ensure the stability of their operating state, there will be a packaging shell on the surface of their circuits. In many cases, such as when detecting or testing the performance of the chip or analyzing the failure of the chip, it is necessary to remove the chip package, which is referred to as opening the cover. There are two main ways to open the cover. The first is to completely dissolve the chip package to expose the metal connection. The second is to only remove the package on the silicon core (i.e. the upper cover, which mainly includes plastic upper cover and metal upper cover).

[0003] The second method is simpler and faster, but the second method usually uses a knife to manually remove the cover, which is inefficient and unsafe. The knife can easily scratch fingers. Therefore, a cover opening device has appeared in the prior art to fix the chip, and then pry the cover open through an opening plate at a fixed position, which improves efficiency and safety. However, this cover opening device still needs to be manually operated, and the work efficiency needs to be improved. Moreover, this device can only be used for chips of one specification and has poor adaptability. When opening the cover of chips of different specifications, the device needs to be replaced, which is more troublesome to use. In response to this, the present invention designs a cover opening machine for chips with metal upper covers. Summary of the invention

[0004] According to an embodiment of the present invention, a chip decapping machine is provided, comprising: The box body has a smoke exhaust port on the top; A movable slide, the movable slide is arranged in the box; A positioning jig is arranged on a movable slide and can move with the movable slide to place the chip; A pair of cover opening components, the pair of cover opening components are arranged on both sides of the positioning fixture, and are used to peel off the chip cover of the chip; The cover opening drive mechanism is arranged on the movable slide and is used to drive a pair of cover opening components to move; A heating component, wherein the heating component is arranged above the movable slide; The heating drive mechanism is connected to the box body, and its output end is connected to the heating component, which can drive the heating component to move.

[0005] Further, the cover opening drive mechanism comprises: A first driving cylinder, wherein the output end of the first driving cylinder is connected to a pair of connecting seats, and a pair of cover opening components are movably arranged on the pair of connecting seats respectively; A fixed seat, fixedly connected to the first driving cylinder, wherein a first channel and a second channel are arranged in the fixed seat; A pair of connecting seats are arranged at two ends of the first channel and are slidably connected with the fixing seat; A first slide groove is arranged in the connecting seat; The second driving cylinder is arranged on the movable slide, and a pair of force members are arranged at its output end, and the pair of force members form a V shape; the pair of force members are slidably connected with the fixed seat through the second channel, and are slidably connected with the first sliding groove of a pair of connecting seats.

[0006] Furthermore, a pulley is arranged in the first sliding groove, and the force applying member is slidably connected to the pulley.

[0007] Furthermore, a plurality of second slide grooves are arranged on both sides of the connection seat, and a plurality of first pins are arranged on both sides of the cover opening assembly. The plurality of first pins correspond to the plurality of second slide grooves one by one and are slidably connected.

[0008] Furthermore, a limit assembly is provided on the connection seat, and the position of the limit assembly on the connection seat is adjustable, and is used to limit the position of the cover opening assembly.

[0009] Furthermore, a third sliding groove is provided on the connecting seat, and the limiting component is detachably arranged in the third sliding groove.

[0010] Furthermore, the cover opening assembly comprises: a knife seat and a knife; the knife seat is slidably connected to the connecting seat; and the knife is detachably arranged on the knife seat.

[0011] Further, the cutter is one of a right angle shape and a semicircular shape.

[0012] Further, the heating assembly comprises: a heating block and a plurality of heating tubes; The heating block is connected to the output end of the heating drive mechanism, and a plurality of positioning grooves are arranged on the heating block; A plurality of heating tubes are arranged in the positioning grooves for heating the heating block.

[0013] Furthermore, the heating drive mechanism comprises: a transverse drive mechanism and a longitudinal drive mechanism; The transverse driving mechanism is arranged on the box body, and its output end is connected to the longitudinal driving mechanism, and can drive the longitudinal driving mechanism to move transversely; The output end of the longitudinal driving mechanism is connected to the heating component and can drive the heating component to move up and down.

[0014] The chip decapping machine according to the embodiment of the present invention can be used to decap chips with metal covers of various sizes and shapes; the degree of automation is greatly improved, thereby improving the chip decapping efficiency and reducing production costs.

[0015] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a structure according to an embodiment of the present invention; Figure 2 for Figure 1 A magnified image of point A; Figure 3 It is a schematic diagram of an exploded view of a positioning fixture, a cover opening assembly and a cover opening drive mechanism according to an embodiment of the present invention; Figure 4 It is a schematic three-dimensional diagram of the cooperation between the positioning fixture, the cover opening assembly and the cover opening driving mechanism according to an embodiment of the present invention; Figure 5 A front view of the cooperation between the positioning fixture, the cover opening assembly and the cover opening drive mechanism according to an embodiment of the present invention; Figure 6 for Figure 5 AA section view; Figure 7 A top view of the cooperation between the positioning fixture, the cover opening assembly and the cover opening driving mechanism according to an embodiment of the present invention; Figure 8 for Figure 7 BB section view; Fig. 9 Schematic diagram of a tool in an open cover state according to an embodiment of the present invention. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to further illustrate the present invention.

[0018] First, combine Figures 1 to 9 A chip decapping machine according to an embodiment of the present invention is described, which is used in a chip decapping process and has a wide range of application scenarios.

[0019] like Figures 1 to 9 As shown, the chip decapping machine according to the embodiment of the present invention comprises: The box body 1 has a smoke exhaust port 11 at the top thereof, and the smoke exhaust port 11 is connected to an external smoke exhaust pipe; A movable slide 2 is arranged in the box body 1; A positioning fixture 3, which is disposed on the movable slide 2 and can move with the movable slide 2. A positioning groove 31 is disposed on the positioning fixture 3, and the positioning groove 31 is used to place the chip 81; A pair of cover opening components 4, the pair of cover opening components 4 are arranged on both sides of the positioning fixture 3, and are used to peel off the chip cover 82 of the chip 81; The cover opening driving mechanism 5 is arranged on the movable slide 2 and is used to drive a pair of cover opening components 4 to move; A heating component 6, wherein the heating component 6 is arranged above the movable slide 2; The heating driving mechanism 7 is connected to the box body 1, and its output end is connected to the heating component 6, which can drive the heating component 6 to move.

[0020] Further, if Figures 1 to 9 As shown, in this embodiment, the cover opening drive mechanism 5 comprises: The first driving cylinder 51 is arranged on the movable slide 2, and the output end of the first driving cylinder 51 is connected to a pair of connecting seats 52, and a pair of cover opening components 4 are respectively movably arranged on the pair of connecting seats 52; a slide rail 521 is arranged on the first driving cylinder 51, and a pair of connecting seats 52 are slidably connected to the slide rail 521. The first driving cylinder 51 can drive the pair of connecting seats 52 to reciprocate in relative directions on the slide rail 521, and the cover opening components 4 move with the corresponding connecting seats 52; The fixing seat 53 is fixedly connected to the first driving cylinder 51, and a first channel 531 and a second channel 532 are provided in the fixing seat 53, and the positioning fixture 3 is provided on the top of the fixing seat 53; A pair of connecting seats 52 are arranged at both ends of the first channel 531 and are slidably connected to the fixing seat 53; A first slide groove 521 is provided in the connecting seat 52; The second driving cylinder 54 is arranged on the movable slide 2, and a pair of force members 55 are arranged at its output end, and the pair of force members 55 form a V shape; the pair of force members 55 are slidably connected with the fixed seat 53 through the second channel 532, and are slidably connected with the first slide groove 521 of the pair of connecting seats 52; the lever principle is used to amplify the scraping force toward the inside of the chip cover 82, which can adapt to the cover opening force requirements of chips 81 of various sizes.

[0021] Furthermore, the first driving cylinder 51 may also be replaced by two cylinders that respectively drive a pair of connecting seats 52 .

[0022] Furthermore, a pulley 522 is disposed in the first slide groove 521, and the pulley 522 is rotatably connected to the connecting seat 52, and the force member 55 is slidably connected to the pulley 522. The pair of force members 55 can move into the second channel 532 by squeezing the pulley 522 to make the pair of connecting seats 52 approach each other again, thereby exerting a force, and then cooperate with the first driving cylinder 51 to make the connecting seats 52 move relatively to give the cover opening assembly 4 a greater force.

[0023] Furthermore, a plurality of second slide grooves 523 are provided on both sides of the connection seat 52, and a plurality of first pins 411 are provided on both sides of the cover opening assembly 4. The plurality of first pins 411 correspond to the plurality of second slide grooves 523 one by one and are slidably connected.

[0024] Furthermore, a limit assembly 524 is provided on the connection base 52 . The position of the limit assembly 524 on the connection base 52 is adjustable and used to limit the position of the cover opening assembly 4 . The limit assembly 524 is provided with a plurality of positioning holes.

[0025] Furthermore, a third slide groove 526 is provided on the connecting seat 52, and the limiting component 524 is detachably arranged in the third slide groove 526; first, the cover opening component 4 is assembled with the connecting seat 52, and then the limiting component 524 is inserted into the third slide groove 526 and pressed against the cover opening component 4, and then the cover opening component 4, the limiting component 524 and the connecting seat 52 are fixedly connected by the screws 525.

[0026] Furthermore, the cover opening assembly 4 includes: a knife seat 41 and a knife 42 ; the knife seat 41 is slidably connected to the connecting seat 52 ; the knife 42 is detachably arranged on the knife seat 41 , and the knife 42 can be selected according to the shape and size of the chip 81 .

[0027] Furthermore, the cutter 42 is in a right angle shape or a semicircular shape.

[0028] Furthermore, the heating assembly 6 comprises: a heating block 61 and a plurality of heating tubes 62, which are conventional technical means; The heating block 61 is connected to the output end of the heating drive mechanism 7, and a plurality of positioning grooves 31 are provided on the heating block 61; A plurality of heating tubes 62 are disposed in the positioning groove 31 for heating the heating block 61 .

[0029] Furthermore, the heating drive mechanism 7 comprises: a transverse drive mechanism 71 and a longitudinal drive mechanism 72, which are conventional technical means; The transverse driving mechanism 71 is arranged on the box body 1, and its output end is connected to the longitudinal driving mechanism 72, and can drive the longitudinal driving mechanism 72 to move transversely; The output end of the longitudinal driving mechanism 72 is connected to the heating component 6, and can drive the heating component 6 to move up and down, so that the heating block 61 moves to a specified position on the chip 81 and heats until the glue layer melts.

[0030] Furthermore, a safety grating 12 is also provided on the box body 1, and the safety grating 12 can improve the safety of the equipment.

[0031] Working principle: First, place the packaged chip 81 into the positioning groove 31 of the positioning fixture 3; then install the tool 42 and the tool holder 41; move the slide 2 to send the chip 81 to the heating zone (i.e., the movement range of the heating component 6), that is, the thermal drive mechanism drives the heating block 61 to descend to a suitable position above the chip cover 82, and heat is applied until the glue layer melts, and the heating temperature and the insulation time are controlled by the time relay and the temperature controller; the first drive cylinder 51 drives the tool 42 to approach the outer edge of the chip cover 82, and then the second drive mechanism drives a pair of force members 55 to move to achieve the force effect, and the tool 42 shovels into the glue layer between the chip cover 82 and the substrate 83. Under the action of the shear force, the chip cover 82 is lifted upward to separate the chip 81 from the chip cover 82; then the de-thermal drive mechanism drives the heating component 6 to lift upward, and the slide 2 returns to its original position, and the chip cover 82 is quickly removed before the glue layer is solidified, and the chip 81 is taken out.

[0032] Above, refer to Figures 1 to 9 A chip decapping machine according to an embodiment of the present invention is described, which can be used to decap chips with metal covers of various sizes and shapes; the degree of automation is greatly improved, thereby improving the chip decapping efficiency and reducing production costs.

[0033] It should be noted that, in this specification, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprises..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be appreciated that the above description should not be considered as a limitation of the present invention. After reading the above content, it will be apparent to those skilled in the art that various modifications and substitutions of the present invention will occur. Therefore, the protection scope of the present invention should be limited by the appended claims.

Claims

1. A chip decapping machine, characterized in that: Include: A box body, wherein a smoke exhaust port is arranged on the top of the box body; A movable slide, wherein the movable slide is arranged in the box; A positioning jig, which is arranged on the movable slide and can move with the movable slide, and is used for placing the chip; A pair of cover opening components, the pair of cover opening components are arranged on both sides of the positioning fixture, and are used to peel off the chip cover of the chip; A cover opening drive mechanism, the cover opening drive mechanism is arranged on the movable slide and is used to drive the pair of cover opening components to move; A heating component, wherein the heating component is arranged above the movable slide; A heating drive mechanism, the heating drive mechanism is connected to the box, and an output end of the heating drive mechanism is connected to the heating component, and can drive the heating component to move; The cover opening drive mechanism comprises: A first driving cylinder, wherein an output end of the first driving cylinder is connected to a pair of connecting seats, and the pair of cover opening components are movably arranged on the pair of connecting seats respectively; A fixed seat, fixedly connected to the first driving cylinder, wherein a first channel and a second channel are provided in the fixed seat; The pair of connecting seats are arranged at two ends of the first channel and are slidably connected to the fixing seat; A first sliding groove is provided in the connecting seat; A second driving cylinder, the second driving cylinder is arranged on the movable slide, and a pair of force members are arranged at the output end thereof, the pair of force members form a V shape; the pair of force members are slidably connected to the fixed seat through the second channel, and are slidably connected to the first slide grooves of the pair of connecting seats; The heating assembly comprises: a heating block and a plurality of heating tubes; The heating block is connected to the output end of the heating drive mechanism, and a plurality of positioning grooves are arranged on the heating block; The plurality of heating tubes are arranged in the positioning groove and are used for heating the heating block.

2. The chip decapping machine according to claim 1, characterized in that: A pulley is arranged in the first sliding groove, and the force applying member is slidably connected to the pulley.

3. The chip decapping machine according to claim 1, characterized in that: A plurality of second slide grooves are arranged on both sides of the connection seat, and a plurality of first pins are arranged on both sides of the cover opening assembly. The plurality of first pins correspond to the plurality of second slide grooves one by one and are slidably connected.

4. The chip decapping machine according to claim 1, characterized in that: A limit assembly is arranged on the connection seat, and the position of the limit assembly on the connection seat is adjustable, and is used to limit the position of the cover opening assembly.

5. The chip decapping machine according to claim 4, characterized in that: The connecting seat is provided with a third sliding groove, and the limiting assembly is detachably arranged in the third sliding groove.

6. The chip decapping machine according to claim 1, characterized in that: The cover opening assembly comprises: a knife seat and a knife; the knife seat is slidably connected to the connecting seat; and the knife is detachably arranged on the knife seat.

7. The chip decapping machine according to claim 6, characterized in that: The cutter is in a right angle or semicircular shape.

8. The chip decapping machine according to claim 1, characterized in that: The heating drive mechanism comprises: a transverse drive mechanism and a longitudinal drive mechanism; The transverse driving mechanism is arranged on the box body, and its output end is connected to the longitudinal driving mechanism, and can drive the longitudinal driving mechanism to move transversely; The output end of the longitudinal driving mechanism is connected to the heating component and can drive the heating component to move up and down.

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