CN219150586U - Bottom sealing glue filling needle - Google Patents
Bottom sealing glue filling needle Download PDFInfo
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- CN219150586U CN219150586U CN202223083223.8U CN202223083223U CN219150586U CN 219150586 U CN219150586 U CN 219150586U CN 202223083223 U CN202223083223 U CN 202223083223U CN 219150586 U CN219150586 U CN 219150586U
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- dispensing
- glue
- needle
- bottle
- rotating piece
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a bottom sealing glue filling needle, which comprises a glue dispensing bottle (1), a glue dispensing needle (2) and a rotating piece (3); one end of the dispensing needle (2) is connected with a bottom discharge hole of the dispensing bottle (1), a dispensing end (21) at the other end of the dispensing needle (2) is in a horn-shaped structure, and the bottom width of the dispensing end (21) is larger than the diameter of the needle body of the dispensing needle (2); the rotating piece (3) is arranged on the dispensing bottle (1), so that the dispensing end (21) of the dispensing needle (2) can be rotatably arranged at the gap between the chip (5) and the substrate (6) through the rotating piece (3). The utility model can improve the problem of the quality of the climbing colloid.
Description
Technical Field
The utility model relates to a chip packaging tool, in particular to a bottom sealing adhesive filling adhesive needle.
Background
The bottom sealing glue filling refers to glue dispensing to a gap between the chip and the substrate by using a glue needle, but due to the height difference between the chip and the substrate, glue flows are unevenly distributed during dispensing, so that the problem of glue climbing quality is formed, and the product quality of the chip is affected.
FCBGA (Flip Chip Ball Grid Array) is a packaging method of flip chip ball grid array, under the pressure of cost, the size of the substrate of the FCBGA product is smaller and smaller, the size of the chip is thinner and smaller, and the gap between the chip and the substrate is smaller and smaller. Because the needle end of the glue needle in the prior art is of a circular structure, an oval structure with the width of about 1.1-1.5mm and the length of about 0.9-1.2mm is formed during glue dispensing, the glue-climbing problem is easily caused by wider glue dispensing width, the glue-dispensing stroke needs to be increased due to shorter glue dispensing length, and the glue-climbing problem is further caused. Along with the continuous improvement of the size and precision of FCBGA packaging, the problem of glue climbing quality is serious when the glue needle in the prior art is used for dispensing, especially when the bottom sealing glue of a thin chip is used for filling packaging, and the production requirement of products cannot be met. Accordingly, there is a need to provide a underfill filled needle that can ameliorate the problem of the amount of creepage.
Disclosure of Invention
The utility model aims to provide a bottom sealing glue filling glue needle which can improve the problem of glue climbing quality.
The utility model is realized in the following way:
a bottom sealing glue filling needle comprises a glue dispensing bottle, a glue dispensing needle and a rotating piece; one end of the dispensing needle is connected with a bottom discharge hole of the dispensing bottle, the dispensing end at the other end of the dispensing needle is in a horn-shaped structure, and the bottom width of the dispensing end is larger than the diameter of the needle body of the dispensing needle; the rotating piece is arranged on the dispensing bottle, so that the dispensing end of the dispensing needle can be rotatably arranged at the gap between the chip and the substrate through the rotating piece.
The glue dispensing end and the needle body of the glue dispensing needle form an obtuse included angle, so that the glue dispensing end is obliquely arranged facing the gap between the substrate and the chip.
One end of the rotating piece is arranged at the top of the dispensing glue bottle, and the other end of the rotating piece is externally connected with a driver, so that the dispensing glue bottle and the dispensing glue needle are rotatably arranged on the packaging equipment through the rotating piece.
One end of the rotating piece is arranged at the bottom of the dispensing glue bottle, so that the dispensing glue needle is rotatably arranged at the bottom of the dispensing glue bottle through the rotating piece, the other end of the rotating piece is externally connected with a driver, and the dispensing glue bottle is fixedly arranged on the packaging equipment.
Compared with the prior art, the utility model has the following beneficial effects:
1. the glue dispensing end of the horn-shaped structure is arranged, so that glue flows downwards along the glue dispensing end of the horn-shaped structure during glue dispensing, the glue dispensing width can be reduced, the glue dispensing length can be prolonged, and the glue dispensing stroke can be shortened, thereby effectively avoiding the problem of glue climbing quality, and particularly the problem of glue climbing quality during glue dispensing on a thin chip; meanwhile, through the inclined arrangement of the dispensing end, glue can be more fully and uniformly filled into a gap between the chip and the substrate, the problem of glue climbing quality is avoided, and further the filling and packaging quality of the FCBGA chip bottom sealing glue is improved.
2. The utility model has the advantages that the rotating piece is arranged, and the dispensing needle can rotate through the rotating piece, so that the steering of the dispensing end at the corner of the chip is realized, continuous and effective dispensing is ensured, and the filling and packaging quality of the bottom sealing glue is further ensured.
Drawings
FIG. 1 is a front view of a underfill filling needle of the present utility model (with a rotating member mounted on top of the dispensing needle);
FIG. 2 is a front view of the underfill dispensing needle of the present utility model (with the rotating member mounted to the bottom of the dispensing needle);
FIG. 3 is a side view of a dispensing needle of the underfill filling needle of the present utility model;
fig. 4 is a schematic diagram of the use of the underfill dispensing needle of the present utility model.
In the figure, 1 point glues bottle, 2 point gluey needles, 21 point glue ends, 3 rotation piece, 4 driver, 5 chips, 6 base plates.
Detailed Description
The utility model will be further described with reference to the drawings and the specific examples.
Referring to fig. 1 to 4, a underfill filling needle includes a dispensing bottle 1, a dispensing needle 2 and a rotating member 3; one end of the dispensing needle 2 is connected with a bottom discharge hole of the dispensing bottle 1, a dispensing end 21 at the other end of the dispensing needle 2 is in a horn-shaped structure, and the bottom width of the dispensing end 21 is larger than the diameter of the needle body of the dispensing needle 2; the rotating piece 3 is arranged on the dispensing bottle 1, so that the dispensing end 21 of the dispensing needle 2 can be rotatably arranged at the gap between the chip 5 and the substrate 6 through the rotating piece 3.
The needle size of the dispensing needle 2 can be consistent with that of the prior art, through the arrangement of the dispensing end 21 of the horn-shaped structure, glue flows towards the lower sides along the horn-shaped structure during dispensing, the shape of the dispensing is elongated from the oval structure of the prior art to form a strip-shaped structure, the dispensing width is reduced, the dispensing length is prolonged, and therefore the problem of glue climbing is effectively avoided while the sealing and filling quality of the bottom sealing glue is ensured. The horn-shaped structure size of the dispensing end 21 can be manufactured according to the sizes of the chip 5 and the substrate 6 and the gap width thereof so as to ensure the filling quality of the bottom sealing glue.
At the clearance corner of base plate 6 and chip 5, realize the rotation of point gum needle 2 and point gum end 21 through rotating piece 3, guarantee that point gum end 21 is along the clearance circumference continuous motion of base plate 6 and chip 5 to guarantee the sealed filling quality of bottom seal glue.
The glue dispensing end 21 and the needle body of the glue dispensing needle 2 form an obtuse included angle, so that the glue dispensing end 21 is obliquely arranged facing the gap between the substrate 6 and the chip 5.
Through the slope setting of point gum terminal 21, be favorable to glue more abundant, even packing to the clearance of base plate 6 and chip 5 in, improve chip packaging quality, also be favorable to reducing the incidence of climbing colloid quality problem.
One end of the rotating piece 3 is arranged at the top of the dispensing glue bottle 1, and the other end of the rotating piece 3 is externally connected with a driver 4, so that the dispensing glue bottle 1 and the dispensing glue needle 2 are rotatably arranged on packaging equipment through the rotating piece 3.
Preferably, the rotating member 3 may adopt a rotating bearing, the driver 4 may adopt a small motor in the prior art, and the forward and reverse rotation of the driver 4 controls the synchronous rotation of the dispensing bottle 1 and the dispensing needle 2, so that the dispensing end 21 rotates at the gap corner between the substrate 6 and the chip 5, the steering of the dispensing end 21 is realized, the continuous dispensing operation is facilitated, and the dispensing quality is guaranteed.
One end of the rotating piece 3 is arranged at the bottom of the dispensing glue bottle 1, so that the dispensing glue needle 2 is rotatably arranged at the bottom of the dispensing glue bottle 1 through the rotating piece 3, the other end of the rotating piece 3 is externally connected with a driver 4, and the dispensing glue bottle 1 is fixedly arranged on packaging equipment.
Preferably, the rotating member 3 may adopt a rotating bearing, the driver 4 may adopt a rotating handle, and the control system of the packaging device controls the rotating handle to rotate forward or backward, so that the rotating bearing drives the dispensing needle 2 to rotate relative to the dispensing bottle 1, thereby realizing the rotation of the dispensing needle 2 at the gap corner between the substrate 6 and the chip 5, realizing the steering of the dispensing end 21, facilitating the continuous dispensing operation, and being beneficial to guaranteeing the dispensing quality.
The installation position of the rotating member 3 and the rotating structure and form thereof can be selected and adjusted according to the installation space, the use requirement and the like of the actual packaging equipment so as to meet the rotating function of the dispensing end 21 at the corner.
Referring to fig. 1 to 3, the working principle of the present utility model is:
glue is filled into the dispensing glue bottle 1, the dispensing glue bottle 1 is rotatably arranged on packaging equipment through a rotating piece 3, or the dispensing glue bottle 1 is arranged on the packaging equipment, and a dispensing glue needle 2 is rotatably arranged at a bottom discharge hole of the dispensing glue bottle 1 through the rotating piece 3; the rotating member 3 is externally connected with a driver 4.
In the bottom sealing glue filling procedure, glue enters the glue dispensing needle 2 through the glue dispensing bottle 1, the horn-shaped structure plays a role in guiding the glue to flow downwards at two sides in the glue dispensing end 21, glue is dispensed at the gap between the substrate 6 and the chip 5 to form a strip-shaped structure, the glue dispensing width is reduced to 0.7-1.0mm from 1.1-1.5mm in the prior art, the glue dispensing length is increased to 1.8-2.2mm from 0.9-1.2mm in the prior art, the glue dispensing width is reduced, and the glue dispensing length is prolonged, so that the glue dispensing stroke is shortened, and the problem of glue climbing quality, especially the problem of glue climbing quality when dispensing on the thinner chip 5, is effectively avoided.
When dispensing is performed to the corner of the gap between the substrate 6 and the chip 5, the rotating piece 3 drives the dispensing needle 2 to rotate, so that the dispensing end 21 turns around the corner of the chip 5, and continuous and effective filling of the underfill in the gap between the substrate 6 and the chip 5 is ensured.
The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model should be included in the scope of the present utility model.
Claims (4)
1. A kind of bottom seal glue fills the glue needle, characterized by: comprises a dispensing glue bottle (1), a dispensing glue needle (2) and a rotating piece (3); one end of the dispensing needle (2) is connected with a bottom discharge hole of the dispensing bottle (1), a dispensing end (21) at the other end of the dispensing needle (2) is in a horn-shaped structure, and the bottom width of the dispensing end (21) is larger than the diameter of the needle body of the dispensing needle (2); the rotating piece (3) is arranged on the dispensing bottle (1), so that the dispensing end (21) of the dispensing needle (2) can be rotatably arranged at the gap between the chip (5) and the substrate (6) through the rotating piece (3).
2. The underfill dispensing needle of claim 1, wherein: the glue dispensing end (21) forms an obtuse angle with the needle body of the glue dispensing needle (2), so that the glue dispensing end (21) is obliquely arranged facing the gap between the substrate (6) and the chip (5).
3. The underfill dispensing needle of claim 1, wherein: one end of the rotating piece (3) is arranged at the top of the dispensing glue bottle (1), and the other end of the rotating piece (3) is externally connected with a driver (4), so that the dispensing glue bottle (1) and the dispensing glue needle (2) are rotatably arranged on the packaging equipment through the rotating piece (3).
4. The underfill dispensing needle of claim 1, wherein: one end of the rotating piece (3) is arranged at the bottom of the dispensing bottle (1), the dispensing needle (2) is rotatably arranged at the bottom of the dispensing bottle (1) through the rotating piece (3), the other end of the rotating piece (3) is externally connected with a driver (4), and the dispensing bottle (1) is fixedly arranged on packaging equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083223.8U CN219150586U (en) | 2022-11-21 | 2022-11-21 | Bottom sealing glue filling needle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223083223.8U CN219150586U (en) | 2022-11-21 | 2022-11-21 | Bottom sealing glue filling needle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219150586U true CN219150586U (en) | 2023-06-09 |
Family
ID=86644281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223083223.8U Active CN219150586U (en) | 2022-11-21 | 2022-11-21 | Bottom sealing glue filling needle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219150586U (en) |
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2022
- 2022-11-21 CN CN202223083223.8U patent/CN219150586U/en active Active
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