A pusher device for pushing a sample into a placement slot

Abstract

This application discloses a pushing device for pushing samples into a placement slot, belonging to the field of chip packaging technology. The pushing device includes: a pushing member with a pushing surface for pushing against the side of the sample; a detection unit for detecting the offset information of the sample placed on the carrier tape relative to the placement slot; and a driving component connected to the pushing member, which drives the pushing member to move along a first direction and a second direction according to the offset information, so as to push the sample into the placement slot through the pushing surface. The first direction and the second direction are both horizontal and perpendicular to each other. By applying this application, the detection unit can detect the offset information of the sample placed on the carrier tape relative to the placement slot, and the driving component can be controlled to operate according to the offset information. The driving component drives the pushing member to move the sample according to the offset information, thereby pushing the sample into the placement slot.

Description

Technical Field

[0001] This application relates to the field of chip packaging technology, and more specifically to a pusher device for pushing samples into a placement slot. Background Technology

[0002] The packaging process of chip carrier tape (used to carry, protect, and precisely transport chips) and chip samples is the core step of "chip packaging" in semiconductor back-end manufacturing. Its goal is to precisely fix a single chip sample (bare die or pre-test chip) in the carrier tape's receiving structure (called a pocket or placement slot), and then seal it with a cover layer to form a "carrier tape-chip assembly" that can be used for storage, transportation, and subsequent SMT (surface mount technology) placement.

[0003] In existing technologies, chip samples are typically placed into placement slots on a carrier tape using a combination of vision system positioning and robotic arm gripping. However, in practical applications, some chip samples may fail to be placed into the placement slots due to insufficient positioning accuracy or manufacturing tolerances. Utility Model Content

[0004] This application aims to address one of the technical problems in related technologies to a certain extent. To this end, this application provides a pushing device for pushing a sample into a placement groove.

[0005] To achieve the above objectives, this application adopts the following technical solution: a pushing device for pushing samples into a placement groove, the pushing device comprising:

[0006] The pusher has a push surface for pushing against the side of the sample;

[0007] A detection unit is used to detect the offset information of the sample placed on the carrier tape relative to the placement slot; and,

[0008] A driving component is connected to the pusher, and the driving component is used to drive the pusher to move along a first direction and a second direction according to the offset information, so as to push the sample into the placement slot through the pushing surface, wherein the first direction and the second direction are both horizontal and perpendicular to each other.

[0009] The application of this application has the following advantages: the offset information of the sample placed on the carrier belt relative to the placement slot is detected by the detection unit, the operation of the drive component is controlled according to the offset information, and the drive component drives the pusher to move the sample according to the offset information so as to push the sample into the placement slot.

[0010] Optionally, the pushing surface includes a first pushing surface, a second pushing surface, a third pushing surface, and a fourth pushing surface, wherein the first pushing surface faces the first direction, the second pushing surface faces the opposite direction of the first direction, the third pushing surface faces the second direction, and the fourth pushing surface faces the opposite direction of the second direction.

[0011] Optionally, the pusher is in the shape of a square, a T, or an L.

[0012] Optionally, the first pushing surface, the second pushing surface, the third pushing surface, and the fourth pushing surface on the pushing member are all provided with a silicone layer.

[0013] Optionally, the detection unit includes an industrial camera, which acquires the position information of the sample and the placement slot through visual positioning.

[0014] Optionally, the feeding device further includes a frame and a linear driver disposed on the frame. The detection unit is slidably disposed on the frame and positioned above the carrier belt. The linear driver is connected to the detection unit and is used to drive the detection unit to move along the length direction of the carrier belt.

[0015] Optionally, the driving component includes a first driving mechanism and a second driving mechanism. The output end of the first driving mechanism is connected to the second driving mechanism and is used to drive the second driving mechanism to reciprocate along the first direction. The output end of the second driving mechanism is connected to a pusher and is used to drive the pusher to reciprocate along the second direction.

[0016] Optionally, the drive assembly further includes a third drive mechanism, which is connected to the first drive mechanism and is used to drive the first drive mechanism to reciprocate in the vertical direction.

[0017] Optionally, the first driving mechanism includes a first lead screw module and a first piezoelectric actuator, and the second driving mechanism includes a second lead screw module and a second piezoelectric actuator. The first piezoelectric actuator is disposed at the output end of the first lead screw module and the output end of the first piezoelectric actuator is connected to the second lead screw module. The second piezoelectric actuator is disposed at the output end of the second lead screw module and the output end of the second piezoelectric actuator is connected to the pusher.

[0018] Optionally, both the first lead screw module and the second lead screw module are equipped with grating rulers, which are used to measure the displacement information of the pusher along the first direction and the second direction.

[0019] These features and advantages of this application will be disclosed in detail in the following specific embodiments and accompanying drawings. The best embodiments or means of this application will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this application. In addition, each of these features, elements and components appearing in the following text and drawings is multiple and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0020] The following description, in conjunction with the accompanying drawings, further illustrates this application:

[0021] Figure 1 A schematic diagram of a pushing device for pushing a sample into a placement groove, provided in an embodiment of this application;

[0022] Figure 2 This is a schematic diagram illustrating the application of the feeding device;

[0023] Figure 3 This is a schematic diagram of the pusher in this embodiment;

[0024] Figure 4 This is a schematic diagram of the pusher in other embodiments;

[0025] Figure 5 This is a schematic diagram of the drive component in the feeding device.

[0026] Among them, 1. Pushing component; 10. First pushing surface; 11. Second pushing surface; 12. Third pushing surface; 13. Fourth pushing surface; 2. Detection unit; 3. Drive assembly; 30. First lead screw module; 31. First piezoelectric actuator; 32. Second lead screw module; 33. Second piezoelectric actuator; 34. Third drive mechanism; 4. Frame; 5. Linear driver; 6. Carrier belt; 60. Placement slot; 7. Sample. Detailed Implementation

[0027] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain this application and should not be construed as limiting it.

[0028] The terms "an embodiment," "example," or "example" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this application. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0029] In the description of this application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected," "linked," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a connection through an intermediary, or a connection within two elements or an interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] This embodiment provides a pushing device for pushing samples into a placement groove, such as... Figure 1 and Figure 2 As shown, the feeding device includes a pushing component 1, a detection unit 2, and a driving assembly 3. The pushing component 1 has a pushing surface for pushing against the side of the sample 7. The detection unit 2 detects the offset information of the sample 7 placed on the carrier belt 6 relative to the placement groove 60. The driving assembly 3 is connected to the pushing component 1 and is used to drive the pushing component 1 to move along a first direction P and a second direction S according to the offset information, so as to push the sample 7 into the placement groove 60 through the pushing surface. The first direction P and the second direction S are both horizontal and perpendicular to each other.

[0032] The feeding device provided in this embodiment detects the offset information of the sample 7 placed on the carrier belt 6 relative to the placement groove 60 through the detection unit 2, controls the operation of the drive component 3 according to the offset information, and uses the drive component 3 to drive the pusher 1 to move the sample 7 according to the offset information so as to push the sample 7 into the placement groove 60.

[0033] Combination Figure 3 As shown, the pusher 1 in this embodiment is U-shaped, and its pushing surfaces include a first pushing surface 10, a second pushing surface 11, a third pushing surface 12, and a fourth pushing surface 13. The first pushing surface 10 faces the first direction P, the second pushing surface 11 faces the opposite direction of the first direction P, the third pushing surface 12 faces the second direction S, and the fourth pushing surface faces the opposite direction of the second direction S. Specifically, in this embodiment, the four inner wall surfaces of the pusher 1 are the first pushing surface 10, the second pushing surface 11, the third pushing surface 12, and the fourth pushing surface 13.

[0034] In other alternative implementations, such as Figure 4 As shown, the pusher 1 can also be T-shaped or L-shaped. When the pusher 1 is T-shaped, the upper and lower sides of the transverse structure extending along the first direction P of the T-shaped pusher 1 are the third push surface 12 and the fourth push surface 13, respectively, and the left and right sides of the vertical structure extending along the second direction S of the pusher 1 are the first push surface 10 and the second push surface 11, respectively. When the pusher 1 is L-shaped, the upper and lower sides of the transverse structure extending along the first direction P of the L-shaped pusher 1 are the third push surface 12 and the fourth push surface 13, respectively, and the left and right sides of the vertical structure extending along the second direction S of the pusher 1 are the first push surface 10 and the second push surface 11, respectively.

[0035] Furthermore, in this embodiment, the first pushing surface 10, the second pushing surface 11, the third pushing surface 12 and the fourth pushing surface 13 on the pushing member 1 are all provided with silicone layers, which can prevent the pushing member 1 from damaging the sample 7.

[0036] The detection unit 2 in this embodiment includes an industrial camera. The detection unit 2 acquires the position information of the sample 7 and the placement slot 60 through visual positioning. Specifically, the industrial camera first captures the position coordinates of the placement slot 60 on the carrier belt 6, then captures the current coordinates of the sample 7, and calculates the offset information between the two using the coordinate values. For example... Figure 2 As shown, sample 7 has an offset distance D from the placement groove 60 along the opposite direction of the first direction P, and an offset distance d from the placement groove 60 along the second direction S. Visual positioning technology is existing technology and will not be described in detail here.

[0037] Furthermore, such as Figure 2 As shown, the feeding device provided in this embodiment also includes a frame 4 and a linear driver 5 disposed on the frame 4. The detection unit 2 is slidably disposed on the frame 4 and positioned above the carrier belt 6. The linear driver 5 is connected to the detection unit 2 and is used to drive the detection unit 2 to move along the length direction of the carrier belt 6. By setting the linear driver 5, the detection unit 2 can be driven to move along the length direction of the carrier belt 6. Thus, by adjusting the position of the detection unit 2 relative to the placement slot 60 and the sample 7, the detection unit 2 can be positioned at a location suitable for detecting the coordinate position information of the placement slot 60 and the sample 7, thereby improving the accuracy of obtaining the position information of the sample 7 and the placement slot 60.

[0038] Combination Figure 5As shown, the driving component 3 in this embodiment includes a first driving mechanism and a second driving mechanism. The output end of the first driving mechanism is connected to the second driving mechanism and is used to drive the second driving mechanism to reciprocate along a first direction. The output end of the second driving mechanism is connected to the pusher 1 and is used to drive the pusher 1 to reciprocate along a second direction. Through the above structural design, the first driving mechanism can drive the second driving mechanism and the pusher 1, which is located at the output end of the second driving mechanism, to reciprocate along the first direction, thereby enabling the pusher 1 to push the sample 7 relative to the placement groove 60 along the first direction and its direction. Correspondingly, the second driving mechanism can drive the pusher 1 to reciprocate along the second direction, thereby enabling the pusher 1 to push the sample 7 relative to the placement groove 60 along the second direction and its direction.

[0039] Furthermore, in this embodiment, the first driving mechanism includes a first lead screw module 30 and a first piezoelectric actuator 31, and the second driving mechanism includes a second lead screw module 32 and a second piezoelectric actuator 33. The first piezoelectric actuator 31 is disposed at the output end of the first lead screw module 30, and its output end is connected to the second lead screw module 32. The second piezoelectric actuator 33 is disposed at the output end of the second lead screw module 32, and its output end is connected to the pusher 1. The lead screw module is a high-precision linear driving device, while the piezoelectric actuator is a higher-precision driving unit capable of achieving micron- or even nanometer-level displacement adjustment. Through the above structural design, when it is necessary to push the sample 7 into the placement groove 60, millimeter-level displacement driving can be achieved first through the lead screw module. The position information of the adjusted sample 7 and the placement slot 60 is then detected again by the detection unit 2. If the sample 7 has not yet been pushed into the placement slot 60, micron or even nanometer-level displacement can be achieved by the piezoelectric actuator. Thus, the driving accuracy of the first and second driving mechanisms can be improved by the cooperation of the lead screw module and the piezoelectric actuator.

[0040] Furthermore, in this embodiment, grating rulers are also provided on both the first lead screw module 30 and the second lead screw module 32. The displacement information of the pusher 1 along the first and second directions can be measured using the grating rulers. Specifically, the grating rulers can be installed on the outer shells of the first lead screw module 30 and the second lead screw module 32. The displacement information of the pusher 1 along the first and second directions is measured by detecting the displacement of the output terminals of the first piezoelectric actuator 31 and the second piezoelectric actuator 33.

[0041] The driving component 3 in this embodiment also includes a third driving mechanism 34, which is connected to the first driving mechanism and used to drive the first driving mechanism to reciprocate vertically. By setting the third driving mechanism 34, the first driving mechanism, the second driving mechanism, and the pusher 1 can avoid horizontal movement relative to the carrier belt 6 and the sample 7. It is easy to understand that a fourth driving mechanism can also be added, which is connected to the driving component 3 as a whole to drive the driving component 3 to translate, thereby achieving horizontal avoidance of the driving component 3 relative to the detection unit 2.

[0042] To improve driving accuracy, the aforementioned third and fourth driving mechanisms also each include a lead screw module and a piezoelectric actuator.

[0043] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Those skilled in the art should understand that this application includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this application will be included within the scope of the claims.

Claims

1. A pushing device for pushing a sample into a placement groove, characterized in that, The feeding device includes: The pusher has a push surface for pushing against the side of the sample; A detection unit is used to detect the offset information of the sample placed on the carrier tape relative to the placement slot; and, A driving component is connected to the pusher, and the driving component is used to drive the pusher to move along a first direction and a second direction according to the offset information, so as to push the sample into the placement slot through the pushing surface, wherein the first direction and the second direction are both horizontal and perpendicular to each other.

2. The feeding device as described in claim 1, characterized in that, The pushing surface includes a first pushing surface, a second pushing surface, a third pushing surface, and a fourth pushing surface. The first pushing surface faces the first direction, the second pushing surface faces the opposite direction of the first direction, the third pushing surface faces the second direction, and the fourth pushing surface faces the opposite direction of the second direction.

3. The feeding device as described in claim 2, characterized in that, The pusher is in the shape of a square, a T, or an L.

4. The feeding device as described in claim 2, characterized in that, The first, second, third, and fourth pushing surfaces of the pusher are all provided with silicone layers.

5. The feeding device as described in claim 1, characterized in that, The detection unit includes an industrial camera, which acquires the position information of the sample and the placement slot through visual positioning.

6. The feeding device as described in claim 5, characterized in that, The feeding device further includes a frame and a linear driver disposed on the frame. The detection unit is slidably disposed on the frame and positioned above the carrier belt. The linear driver is connected to the detection unit and is used to drive the detection unit to move along the length direction of the carrier belt.

7. The feeding device as described in any one of claims 1 to 6, characterized in that, The drive assembly includes a first drive mechanism and a second drive mechanism. The output end of the first drive mechanism is connected to the second drive mechanism and is used to drive the second drive mechanism to reciprocate along the first direction. The output end of the second drive mechanism is connected to a pusher and is used to drive the pusher to reciprocate along the second direction.

8. The feeding device as described in claim 7, characterized in that, The drive assembly further includes a third drive mechanism, which is connected to the first drive mechanism and is used to drive the first drive mechanism to reciprocate in the vertical direction.

9. The feeding device as described in claim 7, characterized in that, The first driving mechanism includes a first lead screw module and a first piezoelectric actuator. The second driving mechanism includes a second lead screw module and a second piezoelectric actuator. The first piezoelectric actuator is disposed at the output end of the first lead screw module and the output end of the first piezoelectric actuator is connected to the second lead screw module. The second piezoelectric actuator is disposed at the output end of the second lead screw module and the output end of the second piezoelectric actuator is connected to the pusher.

10. The feeding device as described in claim 9, characterized in that, Both the first lead screw module and the second lead screw module are equipped with grating rulers, which are used to measure the displacement information of the pusher along the first direction and the second direction.

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