CN217451939U - Two-side auxiliary vacuumizing heating module special for wire bonding machine - Google Patents
Two-side auxiliary vacuumizing heating module special for wire bonding machine Download PDFInfo
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- CN217451939U CN217451939U CN202220895663.4U CN202220895663U CN217451939U CN 217451939 U CN217451939 U CN 217451939U CN 202220895663 U CN202220895663 U CN 202220895663U CN 217451939 U CN217451939 U CN 217451939U
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Abstract
The utility model discloses a two-side auxiliary vacuumizing heating module special for a wire welding machine, which comprises a heating plate, wherein the heating plate is provided with an upper surface and a lower surface; the upper surface is provided with a first vacuum suction hole, a second vacuum suction hole, an even number of rows of auxiliary vacuum holes and a plurality of through grooves corresponding to the even number of rows of auxiliary vacuum holes, one end of each through groove is communicated with the air suction hole, and the other end of each through groove is communicated with the auxiliary vacuum holes in different rows; the long side surface of the heating plate is provided with a plurality of through holes corresponding to the through grooves, each through hole is internally provided with a jackscrew, and each jackscrew is used for plugging the corresponding through groove. Under the condition of not changing the hot plate, can realize adsorbing not unidimensional lead frame better, improve laminating degree and compactness between frame and the hot plate.
Description
Technical Field
The utility model belongs to the technical field of the semiconductor chip encapsulation, concretely relates to dedicated both sides auxiliary vacuum heating module of bonding wire machine.
Background
As the variety of frames in the semiconductor industry continues to increase, different types of packaging have evolved. At present, the size of a semiconductor frame is between 15mm and 100mm, but because the size of a QFN (quad Flat No lead) rear film packaging type chip is not fixed and various, the requirement on vacuum adsorption of a welding wire machine table is very high. At present, heating modules in the semiconductor industry are mainly divided into two types, one type is that according to the size of a lead frame, a pressing plate with a corresponding size is matched during operation, and one-to-one correspondence is achieved. The other is a heating module with full capillary blood holes and a pressing plate matched with the size of the product.
Because the mechanical principle of the welding line machine is limited, the middle pressing of the first type of heating module is relatively stable, but because of differences between the inner side pressing and the outer side pressing, the machine can frequently give an alarm when the heating plate is replaced, and the difficulty of modifying the production line machine is increased. Therefore, the pressing plate of the welding head needs to be correspondingly accurate every time when the product is subjected to wire welding operation, otherwise, the operation space of the welding head is narrow during the welding operation, and therefore the operation difficulty and the process parameter difficulty of workers are greatly improved. The second capillary blood hole is designed to be universal, but the large area of the capillary blood holes formed in the heating module often causes dust impurities to be blocked in the capillary blood holes due to vacuum adsorption, so that the subsequent maintenance difficulty is increased. Because of the fretwork design of the rear film pasting part of the QFN frame, the frame can lead to insufficient vacuum suction on the heating module, so that the frame leaks vacuum, products cannot be effectively adsorbed, and the machine can not normally operate when alarming.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dedicated both sides of bonding wire machine are assisted to evacuation heating module to when solving among the prior art semiconductor chip encapsulation, the laminating degree is not high between lead frame and the hot plate, leads to the encapsulation unqualified and need to change different hot plates to not unidimensional lead frame, use cost is high, packaging efficiency low scheduling problem.
In order to solve the problem, the utility model provides a following technical scheme, a dedicated both sides auxiliary vacuum pumping heating module of bonding wire machine, its characterized in that: comprises a heating plate, wherein the heating block is provided with an upper surface and a lower surface; the upper surface is provided with a first vacuum suction hole and a second vacuum suction hole, the lower surface is provided with an air suction hole, and the air suction hole is communicated with the first vacuum suction hole and the second vacuum suction hole; the four corners of the heating plate are respectively provided with a first vacuum suction hole, and a first interval is formed between two opposite first vacuum suction holes along the length direction of the heating plate; a plurality of second vacuum suction holes are formed in the central area of the heating block, the second vacuum suction holes are arranged in two rows along the width direction of the heating block, the two rows of second vacuum suction holes are parallel to each other, and a second interval is formed between the second vacuum suction holes along the length direction of the heating plate; the upper surface also comprises even rows of auxiliary vacuum holes which are opposite in pairs and are respectively arranged at two sides of the two rows of second vacuum suction holes; a third interval is arranged between the two corresponding rows of auxiliary vacuum holes along the length direction of the heating block, and the third interval is larger than the second interval and smaller than the first interval; the vacuum pump also comprises a plurality of through grooves corresponding to the auxiliary vacuum holes in the even number of rows, one end of each through groove is communicated with the air suction holes, and the other end of each through groove is communicated with the auxiliary vacuum holes in different rows; a plurality of through holes corresponding to the through grooves are formed in the side surface of the long side of the heating block, jackscrews are arranged in each through hole, and each jackscrew is used for plugging the corresponding through groove; the first vacuum suction hole has a diameter greater than diameters of the second vacuum suction hole and the auxiliary vacuum hole.
Preferably, the number of rows of the auxiliary vacuum holes is at least 2 rows.
Preferably, the first interval is 90mm, the second interval is 30-60mm, and the third interval is 40-80 mm.
Preferably, the diameter of the first vacuum suction hole is 2mm, the diameter of the second vacuum suction hole is 0.5-1.0 mm, and the diameter of the through hole is 0.5-1.0 mm.
Preferably, the upper surface of the heating block is further provided with a positioning hole.
Preferably, the positioning holes are bolt holes or threaded holes.
Compared with the prior art, the utility model discloses the beneficial effect who reaches: the utility model discloses an inhale hole both sides in the vacuum of heating piece central zone and add even number row auxiliary vacuum hole again to through the jackscrew that the heating piece side set up, the different auxiliary vacuum hole of shutoff is with the vacuum adsorption power of adjusting the heating piece upper surface, thereby under the condition of not changing the hot plate, can realize adsorbing not unidimensional lead frame better, improves laminating degree and compactness between frame and the heating piece, avoids the perk at frame both ends, and then improves encapsulation quality.
Drawings
FIG. 1 is a schematic view of a heating module having two rows of auxiliary vacuum holes
FIG. 2 is a schematic view of a heating module having four rows of auxiliary vacuum holes
FIG. 3 is a schematic view of a heating module having six rows of auxiliary vacuum holes
FIG. 4 is a schematic side view of a heating module
FIG. 5 is a schematic view of the internal through slots and jackscrews of the heating module
1 heating plate
2 first vacuum suction hole
3 second vacuum suction hole
4 auxiliary vacuum hole
5-through groove
6 through hole
7 jackscrew
8 exhaust hole
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below. The described embodiments are only some, but not all embodiments of the invention. Based on the embodiments in the present invention, other embodiments obtained by the person skilled in the art without creative work all belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, 4 and 5, a two-side auxiliary vacuum-pumping heating module dedicated for a wire bonding machine is characterized in that: comprises a heating plate, wherein the heating block is provided with an upper surface and a lower surface; the upper surface is provided with a first vacuum suction hole and a second vacuum suction hole, and the lower surface is provided with an air suction hole; the air suction hole is communicated with the first vacuum suction hole and the second vacuum suction hole; the four corners of the heating plate are respectively provided with a first vacuum suction hole, and a first interval is formed between two opposite first vacuum suction holes along the length direction of the heating plate; a plurality of second vacuum suction holes are formed in the central area of the heating block, the second vacuum suction holes are arranged in two rows along the width direction of the heating block, the two rows of second vacuum suction holes are parallel to each other, and a second interval is formed between the second vacuum suction holes along the length direction of the heating plate; the upper surface also comprises even rows of auxiliary vacuum holes which are opposite in pairs and are respectively arranged at two sides of the two rows of second vacuum suction holes; a third interval is arranged between the two corresponding rows of auxiliary vacuum holes along the length direction of the heating block, and the third interval is larger than the second interval and smaller than the first interval; the vacuum pump also comprises a plurality of through grooves corresponding to the auxiliary vacuum holes in the even number of rows, one end of each through groove is communicated with the air suction holes, and the other end of each through groove is communicated with the auxiliary vacuum holes in different rows; a plurality of through holes corresponding to the through grooves are formed in the side surface of the long side of the heating block, jackscrews are arranged in each through hole, and each jackscrew is used for plugging the corresponding through groove; the first vacuum suction hole has a diameter greater than diameters of the second vacuum suction hole and the auxiliary vacuum hole. The number of rows of the auxiliary vacuum holes is two.
As shown in fig. 5, the through grooves corresponding to two different rows of auxiliary vacuum holes are arranged in a staggered manner in the thickness direction of the heating plate, and correspondingly, the through holes corresponding to the through grooves are also arranged in a staggered manner in the thickness direction of the heating plate.
Preferably, the first spacing is 90mm, the second spacing is 30mm and the third spacing is 40 mm.
Preferably, the diameter of the first vacuum suction hole is 2mm, the diameter of the second vacuum suction hole is 0.5-1.0 mm, and the diameter of the through hole is 0.5-1.0 mm.
Preferably, the upper surface of the heating block is further provided with a positioning hole.
Preferably, the positioning holes are bolt holes or threaded holes.
Example 2
As shown in fig. 2, the upper surface of the heating block is provided with four rows of auxiliary vacuum holes, the first interval is 90mm, the second interval is 30mm, the third interval of two opposite rows of auxiliary vacuum holes close to two rows of second vacuum suction holes is 40mm, and the third interval of two opposite rows of auxiliary vacuum holes far away from two rows of second vacuum suction holes is 50 mm. The rest is the same as any other embodiment of the present invention.
Example 3
As shown in fig. 3, the upper surface of the heating block is provided with six lines of auxiliary vacuum holes, the first interval is 90mm, the second interval is 30mm, the third interval of two lines of auxiliary vacuum holes opposite to each other, which is closest to two lines of second vacuum suction holes, is 40mm, the third interval of two lines of auxiliary vacuum holes opposite to each other, which is next closest to two lines of second vacuum suction holes, is 50mm, and the third interval of two lines of auxiliary vacuum holes opposite to each other, which is closest to the first vacuum suction holes, is 60 mm. The rest is the same as any other embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments do not depart from the content of the technical solution of the present invention, and still fall within the scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a dedicated both sides of bonding wire machine are supplementary to be evacuated heating module which characterized in that: comprises a heating plate, wherein the heating module is provided with an upper surface and a lower surface; the upper surface is provided with a first vacuum suction hole and a second vacuum suction hole, the lower surface is provided with an air suction hole, and the air suction hole is communicated with the first vacuum suction hole and the second vacuum suction hole; the four corners of the heating plate are respectively provided with a first vacuum suction hole, and a first interval is formed between two opposite first vacuum suction holes along the length direction of the heating plate; the central area of the heating module is provided with a plurality of second vacuum suction holes which are arranged in two rows along the width direction of the heating module, the two rows of second vacuum suction holes are parallel to each other, and a second interval is formed between the second vacuum suction holes along the length direction of the heating plate;
the upper surface also comprises even rows of auxiliary vacuum holes which are opposite in pairs and are respectively arranged at two sides of the two rows of second vacuum suction holes; a third interval is arranged between the two corresponding rows of auxiliary vacuum holes along the length direction of the heating module, and the third interval is larger than the second interval and smaller than the first interval;
the vacuum pump also comprises an even number of through grooves corresponding to the even number of rows of auxiliary vacuum holes, one end of each through groove is communicated with the air suction holes, and the other end of each through groove is communicated with the auxiliary vacuum holes in different rows; the side surface of the long side of the heating module is provided with an even number of through holes corresponding to the even number of through grooves, each through hole is internally provided with a jackscrew, and each jackscrew is used for plugging the corresponding through groove; the first vacuum suction hole has a diameter greater than diameters of the second vacuum suction hole and the auxiliary vacuum hole.
2. The heating module of claim 1, wherein: the number of rows of auxiliary vacuum holes is at least 2.
3. A heating module as set forth in claim 2, wherein: the number of the through grooves is the same as that of the row number, and the number of the through holes is the same as that of the through grooves.
4. The heating module of claim 3, wherein: the first interval is 90mm, the second interval is 30-60mm, and the third interval is 40-80 mm.
5. The heating module of claim 4, wherein: the diameter of the first vacuum suction hole is 2mm, the diameter of the second vacuum suction hole is 0.5-1.0 mm, and the diameter of the through hole is 0.5-1.0 mm.
6. The heating module of claim 5, wherein: the upper surface of the heating plate is also provided with a positioning hole.
7. The heating module of claim 6, wherein: the positioning holes are bolt holes or threaded holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220895663.4U CN217451939U (en) | 2022-04-18 | 2022-04-18 | Two-side auxiliary vacuumizing heating module special for wire bonding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220895663.4U CN217451939U (en) | 2022-04-18 | 2022-04-18 | Two-side auxiliary vacuumizing heating module special for wire bonding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217451939U true CN217451939U (en) | 2022-09-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220895663.4U Active CN217451939U (en) | 2022-04-18 | 2022-04-18 | Two-side auxiliary vacuumizing heating module special for wire bonding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217451939U (en) |
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2022
- 2022-04-18 CN CN202220895663.4U patent/CN217451939U/en active Active
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