CN112828414B - Integrated sintering tool for micro-assembly substrate connector - Google Patents
Integrated sintering tool for micro-assembly substrate connector Download PDFInfo
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- CN112828414B CN112828414B CN202011630503.9A CN202011630503A CN112828414B CN 112828414 B CN112828414 B CN 112828414B CN 202011630503 A CN202011630503 A CN 202011630503A CN 112828414 B CN112828414 B CN 112828414B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
- B23K3/087—Soldering or brazing jigs, fixtures or clamping means
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- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
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Abstract
The invention discloses an integrated sintering tool for a micro-assembly substrate connector, wherein a box body is a hollow box body without a cover plate at the upper part and the lower part, an upper press block is arranged at the top of an upper substrate and a vertical connector, a lower press block is arranged at the bottom of a lower substrate, a plurality of magnets are respectively arranged on a pair of opposite sides of the upper press plate and a pair of opposite sides of the lower press plate, the positions of the magnets on the upper press plate correspond to the positions of the magnets on the lower press plate one by one, the upper substrate, the lower substrate, the vertical connectors, the upper press block and the lower press block are all positioned in the box body, and the box body, the upper substrate, the lower substrate, the vertical connectors, the upper press block, the lower press block, the upper press plate and the lower press plate are fixed into a whole through the magnetic attraction force of the magnets; the first side pressing plate and the second side pressing plate are symmetrically fixed on the other pair of opposite sides of the lower pressing plate, the welding rings are sleeved on the side wall connectors, and the plurality of spring pins penetrate through the first side pressing plate and the second side pressing plate and are used for fixing the side wall connectors.
Description
Technical Field
The invention belongs to a micro-assembly process, and particularly relates to an integrated sintering tool for a micro-assembly substrate connector.
Background
In recent years, microelectronic assembly technology has become an important guarantee for the development of electronic products toward miniaturization, portability and light weight. The constant innovation of microfabrication techniques and processes enables more efficient and reliable development of production. At present, a substrate sintering process and a connector sintering process in a micro-assembly process are frequently carried out separately, compression joint of a substrate is usually pressed by screws, time consumption is long, if the sequence of screw installation is incorrect, local sintering cavities of the substrate are large, connector sintering often uses soldering paste, soldering wires or soldering rings to be sintered in a hot table or a reflow furnace, the defect efficiency is low, connector pins are easy to deviate, certain temperature steps are required for the two processes to be sintered separately, and the situation of local solder co-melting can occur during sintering.
Disclosure of Invention
The invention aims to provide an integrated sintering tool for a micro-assembly substrate connector, which solves the problems that in the existing microwave module assembly process, the substrate sintering and the connector sintering have solder co-melting caused by stepped temperature sintering, the operation steps of the sub-process are complicated, the operation time is relatively long, the operation technology of personnel has higher requirements, and the like.
The technical solution for realizing the purpose of the invention is as follows: the utility model provides a micro-assembly base plate connector integration sintering frock, includes top board, holding down plate, goes up the briquetting, first side clamp plate, second side clamp plate, box body, top board, infrabasal plate, a plurality of magnet, a plurality of spring pin, a plurality of perpendicular form connector and a plurality of lateral wall connector.
The box body is a hollow box body without cover plates at the upper part and the lower part, wherein an upper pressing block is arranged at the top of an upper base plate and a vertical connector, a lower pressing block is arranged at the bottom of a lower base plate, a pair of opposite sides of the upper pressing plate and a pair of opposite sides of the lower pressing plate are respectively provided with a plurality of magnets, the positions of the magnets on the upper pressing plate correspond to the positions of the magnets on the lower pressing plate one by one, the upper base plate, the lower base plate, the vertical connectors, the upper pressing block and the lower pressing block are all positioned in the box body, and the box body, the upper base plate, the lower base plate, the vertical connectors, the upper pressing block, the lower pressing block, the upper pressing plate and the lower pressing plate are fixed into a whole through the magnetic attraction of the magnets; the first side pressing plate and the second side pressing plate are symmetrically fixed on the other pair of opposite sides of the lower pressing plate, the welding rings are sleeved on the side wall connectors, and the plurality of spring pins penetrate through the first side pressing plate and the second side pressing plate and are used for fixing the side wall connectors.
Compared with the prior art, the invention has the remarkable advantages that:
(1) the invention uses the original In25Pb75 solder with the melting point of 250 ℃ to sinter the substrate, uses the Sn63Pb37 solder with the melting point of 183 ℃ to sinter the connector, and changes the method into the method using an integrated tool, and simultaneously uses the In25Pb75 solder with the melting point of 250 ℃ to sinter the substrate and the connector, the operation efficiency can be improved by 50-60% before and after the process improvement, except that the production efficiency is obviously improved before the sub-process, because only one solder is used In the process, the problem of the co-melting of the solder is effectively avoided, a larger temperature space is reserved for the subsequent process, meanwhile, the magnetic force can also ensure that the substrate is tightly contacted with the box body, the uniform stress is carried out, the sintering void ratio meets the requirement, and the reliability of the product is also improved.
(2) The invention effectively improves the operation efficiency, quality reliability and consistency of the previous procedure in the micro-assembly.
Drawings
Fig. 1 is a general assembly schematic of the present invention.
FIG. 2 is a structural outline diagram of the integrated sintering tooling of the present invention.
FIG. 3 is a sequence diagram of the pressing blocks on the integrated sintering tool of the invention.
FIG. 4 is a conical drawing of a compact on the integrated sintering tooling of the present invention.
Detailed Description
The present invention is described in further detail below with reference to the attached drawing figures.
With reference to fig. 1 and 2, the integrated sintering tool for the micro-assembly substrate connector of the invention comprises an upper pressing plate 2, a lower pressing plate 10, an upper pressing block 3, a lower pressing block 9, a first side pressing plate 7, a second side pressing plate 13, a box body 5, an upper substrate 4, a lower substrate 11, a plurality of magnets 1, a plurality of spring pins 8, a plurality of vertical connectors 12 and a plurality of side wall connectors 6.
The box body 5 is the cavity box body that all does not have the apron from top to bottom, and wherein go up briquetting 3 and set up at the top of last base plate 4 and perpendicular form connector 12, and lower briquetting 9 sets up the bottom at base plate 11 down, a pair of opposite side of top board 2 and a pair of opposite side of holding down plate 10 are provided with a plurality of magnet 1 respectively, and the magnet position on the top board 2 and the magnet position one-to-one on the holding down plate 10, and top board 4, infrabasal plate 11, a plurality of perpendicular form connector 12, top briquetting 3, holding down block 9 all are located box body 5, and box body 5, top board 4, infrabasal plate 11, a plurality of perpendicular form connector 12, top briquetting 3, holding down block 9, top board 2 and holding down plate 10 are fixed as a whole through the magnetic attraction of magnet 1. The first side pressing plate 7 and the second side pressing plate 13 are symmetrically fixed on the other pair of opposite sides of the lower pressing plate 10, the welding rings are sleeved on the side wall connector 6, and the plurality of spring pins 8 penetrate through the first side pressing plate 7 and the second side pressing plate 13 and are used for fixing the side wall connector 6.
Furthermore, the shape of the lower pressing block 9 is consistent with that of the lower substrate 11, and the thickness of the lower pressing block is 1mm higher than that of the box body in the box body; the shape of the upper pressing block 3 is consistent with that of the upper base plate 4, and the thickness of the upper pressing block is 1mm higher than that of the box body in the box body. Because the vertical connector 12 needs to be fixed by the upper pressing block 3, in order to accurately align and conveniently sleeve the insulator, the upper pressing block 3 comprises a plurality of sub pressing blocks (as shown in fig. 3), and tapered holes (as shown in fig. 4) are arranged on the sub pressing blocks; the upper substrate 4 and the lower substrate 11 are respectively provided with solder pieces, and a plurality of vertical connectors 12 are sleeved with solder rings, and the assembly is completed as shown in fig. 2.
The integrated sintering tool for the micro-assembly substrate connector comprises the following specific implementation cases:
the upper pressing plate 2 (two sides are respectively provided with 3 pieces of 20 x 10 x 5mm magnets 1), the lower pressing plate 10 (one pair of opposite sides are respectively provided with 3 pieces of 20 x 10 x 5mm magnets 1, the other pair of opposite sides are respectively provided with 3M 3 screw holes), the upper pressing block 3 (consisting of 6 sub pressing blocks), the lower pressing block 9, the first side pressing plate 7, the second side pressing plate 13, the box body 5, the upper substrate 4, the lower substrate 11, a plurality of magnets 1, spring pins 8 (9), vertical connectors 12 (52) and side wall connectors 6 (9). The installation process is described with reference to fig. 1, and comprises the following steps:
step one, the lower substrate 11 with the solder pieces is placed on the bottom surface of the box body 5.
And step two, arranging the lower pressing block 9 at the bottom of the lower substrate 11.
And step three, arranging a lower pressing plate 10 at the bottom of the lower pressing block 9.
And step four, placing the upper substrate 4 adhered with the solder sheet on the top surface of the box body 5.
And step five, placing 52 vertical connectors 12 at the positions of the connector holes in the box body 5 and sleeving the welding rings.
And step six, arranging the 6 upper pressing blocks 3 on the top of the upper substrate 4 after sequencing according to the figure 3.
And step seven, arranging the upper pressing plate 2 at the top of the upper pressing block 3 (note that the operation is carried out in a mode of slowly pushing from one side to the other side, so that the magnetic force is ensured to be gradually increased instead of instantly generating magnetic attraction force to cause overlarge impact force to damage the box body).
Step eight, arranging the side wall connectors 6 of the 9 sleeved welding rings on the side wall of the box body 5.
And step nine, respectively fixing the two ends of the lower pressure plate 10 by the first side pressure plate 7 and the second side pressure plate 13 through countersunk head screws of M3 × 5.
Step ten, 9 spring pins 8 are respectively arranged on the first side pressing plate 7 and the second side pressing plate 13 to fix the side wall connector 6, so that the side wall connector 6 can be pushed to a set position in the box body 5 when the welding rings are melted.
The original operation method before the integrated tool of the micro-assembly substrate connector is used is that 55M 1.6 x 5 screws are sequentially pressed and connected with the lower substrate 11 in a M1.6kgf.cm torque locking mode, the vertical connector 12 and the side wall connector 6 are sintered on a hot table, the connectors need to be manually aligned in the sintering process, and the comparison ratio of the operation time before and after the integrated tool of the micro-assembly substrate connector is used is shown in table 1.
TABLE 1 comparison of run times before and after Process improvement
It can be seen from table 1 that the efficiency is improved by 51.5% after the processes are combined, and the efficiency is also improved by 9.6% in the whole assembly.
Claims (4)
1. The utility model provides a micro-assembly base plate connector integration sintering frock which characterized in that: the device comprises an upper pressing plate (2), a lower pressing plate (10), an upper pressing block (3), a lower pressing block (9), a first side pressing plate (7), a second side pressing plate (13), a box body (5), an upper substrate (4), a lower substrate (11), a plurality of magnets (1), a plurality of spring pins (8), a plurality of vertical connectors (12) and a plurality of side wall connectors (6);
the box body (5) is a hollow box body without cover plates at the upper part and the lower part, wherein the upper pressing block (3) is arranged at the top parts of the upper base plate (4) and the vertical connector (12), the lower pressing block (9) is arranged at the bottom part of the lower base plate (11), a plurality of magnets (1) are respectively arranged on a pair of opposite sides of the upper pressing plate (2) and a pair of opposite sides of the lower pressing plate (10), the positions of the magnets on the upper pressing plate (2) correspond to the positions of the magnets on the lower pressing plate (10) one by one, the upper substrate (4), the lower substrate (11), a plurality of vertical connectors (12), the upper pressing block (3) and the lower pressing block (9) are all positioned in the box body (5), the box body (5), the upper substrate (4), the lower substrate (11), a plurality of vertical connectors (12), the upper pressing block (3), the lower pressing block (9), the upper pressing plate (2) and the lower pressing plate (10) are fixed into a whole through the magnetic attraction of the magnet (1); the first side pressing plate (7) and the second side pressing plate (13) are symmetrically fixed on the other pair of opposite sides of the lower pressing plate (10), the side wall connector (6) is sleeved with a welding ring, and a plurality of spring pins (8) penetrate through the first side pressing plate (7) and the second side pressing plate (13) and are used for fixing the side wall connector (6);
the lower pressing block (9) is consistent with the lower substrate (11) in shape, and the upper pressing block (3) is consistent with the upper substrate (4) in shape;
the upper pressing block (3) comprises a plurality of sub pressing blocks, and tapered holes are formed in the sub pressing blocks.
2. The integrated sintering tool for the micro-assembly substrate connector according to claim 1, wherein: the upper substrate (4) and the lower substrate (11) are respectively provided with solder sheets, and a plurality of vertical connectors (12) are sleeved with solder rings.
3. The integrated sintering tool for the micro-assembly substrate connector according to claim 1, wherein: the thickness of the lower pressing block (9) and the lower substrate (11) is used for placing the box body (5), and the height of the lower pressing block and the lower substrate is 1mm higher than the box body (5).
4. The integrated sintering tool for the micro-assembly substrate connector according to claim 1, wherein: the thickness of the upper pressing block (3) and the upper substrate (4) is used for placing the box body (5), and the height of the upper pressing block and the upper substrate is 1mm higher than the box body (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011630503.9A CN112828414B (en) | 2020-12-30 | 2020-12-30 | Integrated sintering tool for micro-assembly substrate connector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011630503.9A CN112828414B (en) | 2020-12-30 | 2020-12-30 | Integrated sintering tool for micro-assembly substrate connector |
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| CN112828414A CN112828414A (en) | 2021-05-25 |
| CN112828414B true CN112828414B (en) | 2022-09-13 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113210793A (en) * | 2021-05-31 | 2021-08-06 | 北京无线电测量研究所 | Automatic brazing tool |
| CN115213513B (en) * | 2022-07-14 | 2023-09-26 | 中国电子科技集团公司第二十九研究所 | Multi-chip vacuum eutectic welding device and method |
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