Auxiliary jig for chip heat dissipation pasting machine table

Abstract

The utility model relates to the technical field of semiconductor production, and discloses an auxiliary jig for a chip heat dissipation paste machine table, which is arranged on the heat dissipation paste machine table to paste an I-shaped heat dissipation paste on the back surface of a chip, and comprises a label taking head and a rolling wheel matched and adjacent to the label taking head, the through groove is formed in the length direction of the label taking head in a penetrating mode, a plurality of vacuum holes are formed in the positions, located on the two sides of the through groove, of the label taking head respectively, and the depth of the through groove is matched with the depth of a groove in the I-shaped heat dissipation paster. The distribution positions of the vacuum holes of the label taking head are changed, the positions of the grooves of the I-shaped heat dissipation paste are avoided, the problem of vacuum leakage abnormity in the label taking process can be effectively solved, and the grooves are formed in the surface of the label taking head so that a chip can be prevented from being broken in the labeling process; and meanwhile, the rolling wheel is slotted, so that the problem of abnormal wrinkles of the short edge of the chip is effectively solved, and the chip is effectively prevented from being broken during rolling.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor production, in particular to an auxiliary fixture for a chip heat dissipation pasting machine. Background Art

[0002] During the chip packaging process, a heat sink needs to be attached to the back of the chip to facilitate the heat dissipation of the chip. In the prior art, a heat sink machine is generally used to attach the heat sink. The label head is used as a gripper for transferring the heat sink, and the rolling wheel is used as an assistant to attach the heat sink tightly to the chip. Both play an important role in the heat sink pasting process.

[0003] In the prior art, the bottom of the label removal head is generally set to a flat structure, and a number of vacuum adsorption holes are formed at the bottom of the label removal head. The vacuum adsorption holes are used to adsorb the heat sink to facilitate operation, and the surface of the rolling wheel is set to be flat. However, when the label removal head is working, the vacuum adsorption holes correspond to the grooves of the I-shaped heat sink, and there is a vacuum leakage phenomenon. In addition, the surface of the label removal head is flat, and there is a risk that the label removal head will break the heat sink during the pasting process; and the rolling wheel with a flat surface may cause wrinkles on the short side of the chip during rolling, and there is even a risk of breaking the chip. Utility Model Content

[0004] The purpose of the utility model is to provide an auxiliary fixture for a chip heat dissipation mounting machine to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an auxiliary fixture for a chip heat dissipation sticker machine, which is arranged on the heat dissipation sticker machine to stick an I-shaped heat dissipation sticker on the back of a chip, including a label removal head and a rolling wheel arranged adjacent to the label removal head. A through groove is provided on the outer end surface of the label removal head that contacts the chip, and the through groove is arranged to penetrate along the length direction of the label removal head. A plurality of vacuum holes are respectively provided on the label removal head located on both sides of the through groove, and the depth of the through groove matches the depth of the groove on the I-shaped heat dissipation sticker.

[0006] The following improvement is made in the solution of the present application: a stepped depression is provided at an edge position away from the through slot on the outer end surface of the label removal head that contacts the chip, so as to avoid mutual influence between adjacent heat dissipation stickers.

[0007] The following improvement is made in the present application: the vacuum holes are arranged in three rows parallel to the axis of the through slot, two rows of vacuum holes are arranged between the stepped recess and the through slot, and the remaining row of vacuum holes is arranged on the other side of the through slot.

[0008] The following improvement is made in the solution of the present application: the distance between two adjacent rows of vacuum holes is consistent with the width of the through slot, and the distance between the two rows of vacuum holes close to the through slot and the through slot is 3 mm respectively.

[0009] The following improvements are made in the present application: the rolling wheel includes a fixed shaft rotatably connected to the heat dissipation patch machine, and an elastic sleeve arranged on the fixed shaft, and an annular groove is opened in the middle of the elastic sleeve along the length direction, and the width of the annular groove is consistent with the width of the through groove.

[0010] The following improvement is made in the solution of the present application: the elastic sleeve is made of an antistatic rubber material.

[0011] Compared with the prior art, the utility model provides an auxiliary fixture for a chip heat dissipation mounting machine, which has the following beneficial effects:

[0012] The utility model changes the distribution position of the vacuum holes of the label taking head to avoid the position of the I-shaped heat dissipation sticker groove, which can effectively solve the problem of abnormal vacuum leakage during label taking, and grooves are made on the surface of the label taking head to avoid the chip being crushed during labeling; at the same time, grooves are made on the rolling wheel to effectively improve the problem of abnormal wrinkles on the short side of the chip and effectively avoid the chip being crushed during rolling. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0014] Figure 1 It is a structural schematic diagram of the header in the utility model;

[0015] Figure 2 It is a structural schematic diagram of the rolling wheel in the utility model.

[0016] In the figure: 1, labeling head; 11, through groove; 12, vacuum hole; 13, stepped depression; 2, rolling wheel; 21, fixed shaft; 22, elastic sleeve; 23, annular groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] Example

[0020] like Figure 1-2 As shown, an auxiliary fixture for a chip heat dissipation sticker machine is arranged on the heat dissipation sticker machine to stick an I-shaped heat dissipation sticker on the back of the chip, and is mainly composed of a labeling head 1 and a rolling wheel 2; wherein, a through groove 11 is provided on the outer end surface of the labeling head 1 that contacts the chip, and the through groove 11 is provided through the length direction of the labeling head 1, and the depth of the through groove 11 matches the depth of the groove on the I-shaped heat dissipation sticker, and a groove is provided on the surface of the labeling head 1 to avoid breaking the chip during labeling; the labeling head 1 located on both sides of the through groove 11 is also provided with a plurality of rollers 20, 21 and 26. A plurality of vacuum holes 12 are provided, and the plurality of vacuum holes 12 are arranged in three rows parallel to the axis of the through slot 11, wherein two rows of vacuum holes 12 are arranged between the step recess 13 and the through slot 11, and the remaining row of vacuum holes 12 is arranged on the other side of the through slot 11, and the distance between two adjacent rows of vacuum holes 12 is consistent with the width of the through slot 11, and the distance between the two rows of vacuum holes 12 close to the through slot 11 and the through slot 11 is 3 mm respectively; a stepped recess 13 is provided on the outer end surface of the label taking head 1 that contacts the chip, away from the edge of the through slot 11. By changing the distribution position of the vacuum holes 12 on the label taking head 1 and avoiding the position of the I-shaped heat dissipation paste groove, the problem of abnormal vacuum leakage during label taking can be effectively solved.

[0021] The rolling wheel 2 is arranged adjacent to the labeling head 1, and includes a fixed shaft 21 rotatably connected to the heat dissipation sticker machine and an elastic sleeve 22 arranged on the fixed shaft 21, and an annular groove 23 is opened in the middle of the elastic sleeve 22 along the length direction, and the width of the annular groove 23 is consistent with the width of the through groove 11; and the elastic sleeve 22 is made of anti-static rubber material.

[0022] Working principle: first assemble the labeling head 1 and the rolling wheel 2 to the heat sink machine respectively, and make the labeling head and the rolling wheel 2 move along the X-axis, Y-axis and Z-axis by rotating and lifting the cylinder, and adjust according to the position of the heat sink, rotate the labeling head 1 to adjust the angle, align the chip, and complete the precise attachment by the labeling head 1; the chip with the heat sink attached moves forward through the machine material belt, and the rolling wheel 2 is driven down by the lifting cylinder, and then the rolling wheel 2 is driven forward by the rotating cylinder to complete the rolling, so that the heat sink is tightly attached to the chip.

Claims

1. An auxiliary fixture for a chip heat dissipation paste machine, which is arranged on the heat dissipation paste machine to paste an I-shaped heat dissipation paste on the back of the chip, characterized in that: The invention comprises a label taking head (1) and a rolling wheel (2) arranged adjacent to the label taking head (1), wherein a through groove (11) is provided on the outer end surface of the label taking head (1) in contact with the chip, and the through groove (11) is arranged to penetrate along the length direction of the label taking head (1), and a plurality of vacuum holes (12) are respectively provided on the label taking head (1) at both sides of the through groove (11), and the depth of the through groove (11) matches the depth of a groove on an I-shaped heat dissipation paste.

2. The auxiliary fixture for a chip heat dissipation mounting machine according to claim 1, characterized in that: A stepped recess (13) is provided on the outer end surface of the labeling head (1) that contacts the chip and is away from the edge of the through groove (11).

3. The auxiliary fixture for a chip heat dissipation mounting machine according to claim 2, characterized in that: The plurality of vacuum holes (12) are arranged in three rows parallel to the axis of the through slot (11), wherein two rows of vacuum holes (12) are arranged between the stepped recess (13) and the through slot (11), and the remaining row of vacuum holes (12) is arranged on the other side of the through slot (11).

4. The auxiliary fixture for a chip heat dissipation mounting machine according to claim 3, characterized in that: The distance between two adjacent rows of vacuum holes (12) is consistent with the width of the through slot (11), and the distance between the two rows of vacuum holes (12) close to the through slot (11) and the through slot (11) is 3 mm respectively.

5. The auxiliary fixture for a chip heat dissipation mounting machine according to claim 1, characterized in that: The rolling wheel (2) comprises a fixed shaft (21) rotatably connected to a heat dissipation patch machine, and an elastic sleeve (22) arranged on the fixed shaft (21), and an annular groove (23) is provided in the middle of the elastic sleeve (22) along the length direction, and the width of the annular groove (23) is consistent with the width of the through groove (11).

6. The auxiliary fixture for a chip heat dissipation mounting machine according to claim 5, characterized in that: The elastic sleeve (22) is made of antistatic rubber material.

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