A positioning component and semiconductor integrated circuit manufacturing system

Abstract

The present invention relates to the field of semiconductor circuit board printing technology, specifically to a positioning component and a semiconductor integrated circuit manufacturing system, wherein the side walls of a first scraper and a second scraper are slidably fitted to the side walls of a fixed block, a lower piston fitting to the inner wall of an extension column is arranged at the end of a lifting rod, a screw is inserted at the upper end of an adjusting column, an upper piston is arranged at the lower end of the screw, and the upper piston is slidably inserted on the inner wall of the extension column, and the beneficial effects are as follows: by setting the coordination of a fixed block and a positioning block, a telescopic column is used to adjust the height of the positioning block, thereby limiting the extension height of the folding tube, and the screw and the upper piston are used to adjust the internal pressure, thereby realizing convenient adjustment of the lifting height, and an integrated synchronous lifting and dislocation adjustment between adjacent scrapers is realized by an air pump, thereby achieving the purpose of protecting the printed board while realizing fast and precise positioning.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor circuit board printing, in particular to a positioning component and a semiconductor integrated circuit manufacturing system. Background Art

[0002] Existing semiconductor circuit boards are divided into two types: hard boards and soft boards. Most of the soft boards are etched to expose the connection positions, and then the semiconductor components are installed on the printed board through printing solder paste and patch installation.

[0003] In the prior art, solder paste printers are mostly used to print integrated circuit flexible boards. In order to control the thickness of the printed solder paste, the printed boards are usually mostly rigid thin boards.

[0004] However, in the actual printing process, due to the thin thickness of the printing plate, it is unable to withstand the cleaning and squeezing of the scraper. Therefore, in the actual printing process, it is necessary to accurately position and control the downward pressure height of the scraper to avoid the printing plate from being deformed by pressure. However, the existing telescopic height adjustment has low accuracy, insufficient adaptability, and difficulty in adjustment, and it is difficult to adapt to the requirements of rapid replacement and adjustment. Summary of the invention

[0005] The object of the present invention is to provide a positioning component and a semiconductor integrated circuit manufacturing system to solve the problem of convenient and accurate positioning of the scraper height.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A positioning component, the positioning component comprising:

[0008] A mounting base, wherein the mounting base is fixed on a circuit board solder paste printer, a solder paste board is mounted on the upper end of the mounting base, and a thin plate-shaped printing board is arranged in the middle of the upper end of the solder paste board;

[0009] The scraper assembly comprises a fixed block, a positioning block and a pair of first scrapers and a second scraper distributed on the left and right. The lower end of the fixed block is provided with an extension column, and the upper end of the fixed block is vertically provided with a telescopic column, the end of the telescopic column is fixedly connected to the lower end surface of the positioning block, and the upper end of the positioning block is provided with an adjusting column corresponding to the extension column. The extension column and the adjusting column are connected by a folding tube, and the pair of adjacent adjusting columns on the left and right are connected by an air pump. The inner sides of the first scraper and the second scraper are vertically provided with a lifting rod slidably inserted in the inner cavity of the lower end of the extension column, the side walls of the first scraper and the second scraper slidably fit the side walls of the fixed block, and the end of the lifting rod is provided with a lower piston fitting the inner wall of the extension column, the upper end of the adjusting column is inserted with a screw, and the lower end of the screw is provided with an upper piston, and the upper piston is slidably inserted on the inner wall of the extension column.

[0010] Preferably, a positioning buckle is provided on one side of the mounting base, a positioning hole is provided on the other side of the mounting base, an insertion rod is provided at the end of the solder paste board, the insertion rod is slidably inserted in the positioning hole, and the other side of the solder paste board is pressed onto the positioning buckle.

[0011] Preferably, the outer walls at both ends of the fixing block are provided with connecting frames, and the upper end of the connecting frame is vertically provided with a lifting column, and the lifting column is fixed on the upper inner wall of the circuit board solder paste printer.

[0012] Preferably, a connecting rod is vertically arranged in the middle of the lower end of the fixing block, and a blocking bar parallel to the printing plate is transversely arranged at the lower end of the connecting rod, and the ends of the blocking bar are in contact with the inner walls of the first scraper and the second scraper.

[0013] Preferably, the air pump is fixed in the inner cavity of the positioning block, connecting pipes are provided at both ends of the air pump, the inner cavity of the adjusting column is set as a compression cavity, the two ends of the air pump are connected to adjacent compression cavities through connecting pipes, and the connecting position between the air pump and the adjusting column is located at the lower end of the upper piston.

[0014] Preferably, a receiving groove is provided at the lower end of the positioning block, the folding tube is located in the receiving groove, and sealing end plates are provided at both upper and lower ends of the folding tube. A pair of sealing end plates distributed upper and lower are respectively plugged into the lower end port of the adjusting column and the upper end port of the extension column.

[0015] Preferably, an annular sealing groove is provided on the outer side of the lower end port of the adjusting column and the upper end port of the extension column, and mounting holes distributed in a circumferential array are provided on the outer side of the sealing groove. A sealing ring pressed into the sealing groove is provided on the sealing end plate, and the sealing end plate is fixedly installed by screws inserted into the mounting holes.

[0016] Preferably, a limiting vertical groove is provided on the outer wall of the fixed block, and side bars slidably inserted in the limiting vertical groove are provided on the side walls of the first scraper and the second scraper.

[0017] Preferably, a limiting end block is provided at the lower end port of the extension column, and the outer wall of the lifting rod slides through the limiting end block.

[0018] A semiconductor integrated circuit manufacturing system comprises the above positioning component.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention sets the coordination of a fixed block and a positioning block, uses a telescopic column to adjust the height of the positioning block, and further limits the extension height of the folding tube, uses a screw rod and an upper piston to adjust the internal pressure, realizes convenient adjustment of the lifting height, and realizes integrated synchronous lifting and misalignment adjustment between adjacent scrapers through an air pump, thereby achieving the purpose of protecting the printing plate while realizing fast and precise positioning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the installation structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the scraper lifting and adjusting structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the positioning block structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the structure of the fixing block of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing block of the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning block of the present invention.

[0027] In the figure: 1. Mounting base; 2. Solder paste board; 3. Positioning buckle; 4. Positioning hole; 5. Insert rod; 6. Printed board; 7. Lifting column; 8. Baffle bar; 9. First scraper; 10. Second scraper; 11. Fixing block; 12. Connecting frame; 13. Positioning block; 14. Screw; 15. Upper piston; 16. Air pump; 17. Folding tube; 18. Limiting vertical groove; 19. Extension column; 20. Lower piston; 21. Limiting end block; 22. Lifting rod; 23. Side strip; 24. Connecting rod; 25. Adjusting column; 26. Sealing end plate; 27. Compression inner cavity; 28. Sealing ring; 29. ​​Storage groove; 30. Connecting tube; 31. Telescopic column; 32. Sealing groove; 33. Mounting hole. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figures 1 to 6 , the present invention provides a technical solution:

[0030] A positioning component comprises a mounting base 1 and a scraping paste component.

[0031] Embodiment 1:

[0032] The mounting base 1 is fixed on the circuit board solder paste printer, a solder paste board 2 is mounted on the upper end of the mounting base 1, a thin plate-shaped printed board 6 is arranged in the middle of the upper end of the solder paste board 2, a positioning buckle 3 is arranged on one side of the mounting base 1, a positioning hole 4 is arranged on the other side of the mounting base 1, an insertion rod 5 is arranged at the end of the solder paste board 2, the insertion rod 5 is slidably inserted in the positioning hole 4, and the other side of the solder paste board 2 is pressed on the positioning buckle 3.

[0033] The positioning plug-in installation of the solder paste board 2 is achieved by plugging and installing the positioning buckle 3 and the insertion rod 5 in the positioning hole 4.

[0034] The scraper assembly includes a fixed block 11, a positioning block 13 and a pair of first scrapers 9 and second scrapers 10 distributed on the left and right. The outer walls at the front and rear ends of the fixed block 11 are provided with a connecting frame 12. The upper end of the connecting frame 12 is vertically provided with a lifting column 7, and the lifting column 7 is fixed on the upper inner wall of the circuit board solder paste printer.

[0035] An extension column 19 is provided at the lower end of the fixed block 11, and a telescopic column 31 is vertically provided at the upper end of the fixed block 11. The end of the telescopic column 31 is fixedly connected to the lower end surface of the positioning block 13. The height between the fixed block 11 and the positioning block 13 is adjusted by the telescopic column 31, thereby limiting the volume of the extrusion cavity.

[0036] An adjusting column 25 corresponding to the extending column 19 is disposed at the upper end of the positioning block 13 , and the extending column 19 and the adjusting column 25 are connected via a folding tube 17 .

[0037] The folding tube 17 is used to adapt the communication between the fixing blocks 11 and the positioning blocks 13 at different heights.

[0038] A pair of adjacent adjusting columns 25 on the left and right are connected through an air pump 16. The inner sides of the first scraper 9 and the second scraper 10 are vertically provided with a lifting rod 22 slidably inserted in the inner cavity of the lower end of the extension column 19. The side walls of the first scraper 9 and the second scraper 10 slide in contact with the side walls of the fixed block 11. The end of the lifting rod 22 is provided with a lower piston 20 that fits the inner wall of the extension column 19. The upper end of the adjusting column 25 is inserted with a screw rod 14. The lower end of the screw rod 14 is provided with an upper piston 15. The upper piston 15 is slidably inserted on the inner wall of the extension column 19.

[0039] The height of the upper piston 15 is adjusted by the screw rod 14, thereby achieving the purpose of controlling the volume of the inner cavity of the extension column 19, the adjustment column 25 and the folding tube 17, and then by controlling the volume, achieving the purpose of controlling the lifting height of the lower piston 20.

[0040] When the first scraper 9 is scraping, the gas in the inner cavity corresponding to the upper end of the second scraper 10 is pumped into the adjusting column 25 at the upper end of the first scraper 9 through the air pump 16, so that the internal pressure increases, driving the first scraper 9 to descend and press against the upper end surface of the printing plate 6, and the inner cavity pressure at the upper end of the second scraper 10 decreases, driving the second scraper 10 to rise, forming a synchronous adjustment. The descending height of the first scraper 9 is limited by the volume of the compressed inner cavity 27 defined by the upper piston 15.

[0041] When the first scraper 9 reaches the other side, the air pump 16 is used to reversely pump air, so that the first scraper 9 rises and the second scraper 10 descends, and the solder paste is scraped back by the second scraper 10, forming a reciprocating printing cycle.

[0042] Embodiment 2:

[0043] On the basis of Example 1, in order to prevent the solder paste from adhering to the scraper, a connecting rod 24 is vertically arranged in the middle of the lower end of the fixed block 11, and a baffle 8 parallel to the printed board 6 is horizontally arranged at the lower end of the connecting rod 24, and the ends of the baffle 8 are in contact with the inner walls of the first scraper 9 and the second scraper 10.

[0044] The baffle 8 is provided to clean the inner walls of the first scraper 9 and the second scraper 10 that are reset and lifted, so as to prevent the solder paste from adhering.

[0045] Embodiment 3:

[0046] On the basis of Example 2, in order to achieve the connection between the air pump 16 and the adjusting column 25, the air pump 16 is fixed in the inner cavity of the positioning block 13, and connecting pipes 30 are arranged at both ends of the air pump 16. The inner cavity of the adjusting column 25 is set as a compression cavity 27. The two ends of the air pump 16 are connected to the adjacent compression cavities 27 through connecting pipes 30, and the connecting position between the air pump 16 and the adjusting column 25 is located at the lower end of the upper piston 15.

[0047] The connecting pipe 30 is provided to realize the two-way air extraction of the air pump 16 , and the cooperation between the compression inner chamber 27 and the upper piston 15 is provided to achieve the purpose of adjusting the volume of the compression inner chamber 27 .

[0048] Embodiment 4:

[0049] On the basis of Example 3, in order to achieve a sealed connection of the folding tube 17, a receiving groove 29 is provided at the lower end of the positioning block 13, and the folding tube 17 is located in the receiving groove 29. Sealing end plates 26 are provided at both upper and lower ends of the folding tube 17. A pair of sealing end plates 26 distributed upper and lower are respectively plugged into the lower end port of the adjusting column 25 and the upper end port of the extension column 19.

[0050] An annular sealing groove 32 is provided on the outer side of the lower end port of the adjusting column 25 and the upper end port of the extending column 19, and mounting holes 33 distributed in a circumferential array are provided on the outer side of the sealing groove 32. A sealing ring 28 pressed into the sealing groove 32 is provided on the sealing end plate 26, and the sealing end plate 26 is fixedly installed by screws inserted into the mounting holes 33.

[0051] The sealing ring 28 and the sealing end plate 26 are provided to achieve a sealed connection between the two ends of the folded tube 17, so that the folded tube 17 can be used to adapt to positioning requirements of different heights.

[0052] Embodiment 5:

[0053] On the basis of Example 4, in order to limit the lifting stability of the scraper, a limiting vertical groove 18 is provided on the outer wall of the fixed block 11, and side strips 23 slidably inserted in the limiting vertical groove 18 are provided on the side walls of the first scraper 9 and the second scraper 10. A limiting end block 21 is provided at the lower end port of the extension column 19, and the lifting rod 22 slides through the limiting end block 21.

[0054] By setting the cooperation between the limiting vertical groove 18 and the side strip 23, the first scraper 9 and the second scraper 10 can be lifted and lowered vertically. By setting the limiting end block 21, the lifting and lowering adjustment height of the lifting rod 22 can be limited to prevent the lower piston 20 from falling off.

[0055] A semiconductor integrated circuit manufacturing system comprises the above positioning component.

[0056] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning component, characterized in that: The positioning component comprises: A mounting base (1), wherein the mounting base (1) is fixed on a circuit board solder paste printer, a solder paste board (2) is mounted on the upper end of the mounting base (1), and a thin plate-shaped printing board (6) is arranged in the middle of the upper end of the solder paste board (2); A scraper assembly, the scraper assembly comprising a fixed block (11), a positioning block (13) and a pair of first scrapers (9) and second scrapers (10) distributed on the left and right, the lower end of the fixed block (11) is provided with an extension column (19), the upper end of the fixed block (11) is vertically provided with a telescopic column (31), the end of the telescopic column (31) is fixedly connected to the lower end surface of the positioning block (13), the upper end of the positioning block (13) is provided with an adjustment column (25) corresponding to the extension column (19), the extension column (19) and the adjustment column (25) are connected through a folding tube (17), and the pair of adjustment columns (25) adjacent to the left and right are connected to each other. ) are connected through an air pump (16), the inner sides of the first scraper (9) and the second scraper (10) are vertically provided with a lifting rod (22) which is slidably inserted in the inner cavity of the lower end of the extension column (19), the side walls of the first scraper (9) and the second scraper (10) are slidably fitted to the side walls of the fixed block (11), the end of the lifting rod (22) is provided with a lower piston (20) which fits the inner wall of the extension column (19), the upper end of the adjusting column (25) is inserted with a screw rod (14), the lower end of the screw rod (14) is provided with an upper piston (15), and the upper piston (15) is slidably inserted on the inner wall of the extension column (19).

2. A positioning assembly according to claim 1, characterized in that: A positioning buckle (3) is provided on one side of the mounting base (1), a positioning hole (4) is provided on the other side of the mounting base (1), an insertion rod (5) is provided at the end of the solder paste plate (2), the insertion rod (5) is slidably inserted in the positioning hole (4), and the other side of the solder paste plate (2) is pressed onto the positioning buckle (3).

3. A positioning assembly according to claim 1, characterized in that: The outer walls at the front and rear ends of the fixed block (11) are provided with a connecting frame (12), and the upper end of the connecting frame (12) is vertically provided with a lifting column (7), and the lifting column (7) is fixed on the upper inner wall of the circuit board solder paste printer.

4. A positioning assembly according to claim 3, characterized in that: A connecting rod (24) is vertically arranged in the middle of the lower end of the fixed block (11), and a blocking bar (8) parallel to the printing plate (6) is horizontally arranged at the lower end of the connecting rod (24), and the ends of the blocking bar (8) are in contact with the inner walls of the first scraper (9) and the second scraper (10).

5. A positioning assembly according to claim 1, characterized in that: The air pump (16) is fixed in the inner cavity of the positioning block (13), and connecting pipes (30) are arranged at both ends of the air pump (16). The inner cavity of the adjusting column (25) is arranged as a compression inner cavity (27). The two ends of the air pump (16) are connected to adjacent compression inner cavities (27) through the connecting pipes (30), and the connecting position between the air pump (16) and the adjusting column (25) is located at the lower end of the upper piston (15).

6. A positioning assembly according to claim 1, characterized in that: The lower end of the positioning block (13) is provided with a receiving groove (29), the folding tube (17) is located in the receiving groove (29), and the upper and lower ends of the folding tube (17) are provided with sealing end plates (26), and a pair of sealing end plates (26) distributed up and down are respectively plugged into the lower end port of the adjustment column (25) and the upper end port of the extension column (19).

7. A positioning assembly according to claim 6, characterized in that: An annular sealing groove (32) is arranged on the outer side of the lower end port of the adjusting column (25) and the upper end port of the extending column (19); mounting holes (33) distributed in a circumferential array are arranged on the outer side of the sealing groove (32); a sealing ring (28) pressed into the sealing groove (32) is arranged on the sealing end plate (26); and the sealing end plate (26) is fixedly installed by screws inserted into the mounting holes (33).

8. A positioning assembly according to claim 4, characterized in that: The outer wall of the fixed block (11) is provided with a limiting vertical groove (18), and the side walls of the first scraper (9) and the second scraper (10) are provided with side strips (23) which are slidably inserted in the limiting vertical groove (18).

9. A positioning assembly according to claim 8, characterized in that: A limiting end block (21) is disposed at the lower end of the extension column (19), and the outer wall of the lifting rod (22) slides through the limiting end block (21).

10. A semiconductor integrated circuit manufacturing system, characterized in that: The invention comprises a positioning component as described in any one of claims 1 to 9.

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