CN105330317A - Ceramic shell brazing method - Google Patents
Ceramic shell brazing method Download PDFInfo
- Publication number
- CN105330317A CN105330317A CN201510926883.3A CN201510926883A CN105330317A CN 105330317 A CN105330317 A CN 105330317A CN 201510926883 A CN201510926883 A CN 201510926883A CN 105330317 A CN105330317 A CN 105330317A
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- Prior art keywords
- graphite boat
- ceramic package
- ark
- described graphite
- boat piece
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Abstract
The invention provides a ceramic shell brazing method. According to the method, a graphite boat is needed to be provided, and the method comprises the specific steps of inserting pins into insertion holes in the graphite boat, and then placing a ceramic shell on the graphite boat; introducing nitrogen into an inlet seal door of a brazing furnace at the speed of 60 ml/min, and introducing nitrogen into the middle of a hearth of the brazing furnace at the speed of 30 ml/min; placing the graphite boat on a conveying belt of the brazing furnace, driving the graphite boat for conducting brazing through the conveying belt, and taking the ceramic shell out of the brazing furnace after brazing is ended. By means of the ceramic shell brazing method, the ceramic shell is heated uniformly, and the production qualified rate of products is high.
Description
Technical field
The present invention relates to a kind of ceramic package method for welding.
Background technology
CPGA (CeramicPinGridArray, ceramic pin grid array) a kind of Chip Packaging form.The ceramic packing that CPGA namely often says, this product needs to use graphite Noah's ark in assembling process, graphite Noah's ark is provided with two row for inserting the jack of pin, pin is inserted among this jack, then ceramic package is positioned over this graphite Noah's ark, bottom contacts with pin, afterwards it is carried out soldering by soldering oven, and ceramic package is provided with one can cut down frame, in this brazing process, design due to graphite Noah's ark result in ceramic package and is heated uneven, thus the cut down frame on ceramic package (or be called and can cut down sealing ring) can be sticked up, it is caused to need again to melt down or scrap, and existing making method is filled with hydrogen and nitrogen to stop ceramic package not oxidized in brazing process in soldering oven, but poor effect, and high expensive.
Summary of the invention
The technical problem to be solved in the present invention, is to provide a kind of ceramic package method for welding.
The present invention is achieved in that a kind of ceramic package method for welding, and described method need provide a kind of graphite Noah's ark, specifically comprises the steps:
Step 1, the jack inserted by pin in graphite Noah's ark, be positioned over ceramic package on graphite Noah's ark afterwards;
Step 2, sealing up a door toward the entrance of soldering oven with the speed of 60ml/min is filled with nitrogen, and the speed with 30ml/min in the middle part of the burner hearth of soldering oven is filled with nitrogen;
Step 3, the travelling belt put into by described graphite Noah's ark on soldering oven, drive graphite Noah's ark to carry out soldering by travelling belt, take soldering oven out of after soldering.
Further, described graphite Noah's ark comprises graphite boat body, described graphite boat body is provided with entrance end and exit end, described entrance end is relative with exit end, the entrance end of described graphite boat body and exit end are symmetrically arranged with a plurality of jut, and be provided with air port between described adjacent protrusions, described graphite boat body is provided with a plurality of graphite boat piece, each described graphite boat piece is provided with plurality of receptacles, described jack is arranged in described graphite boat piece both sides respectively, described air port width is less than the minor increment between the jack of described graphite boat piece both sides, at least one windshied part is provided with between described two relative air ports, described graphite boat piece is located between described windshied part and air port respectively, or described graphite boat piece is located between described windshied part and windshied part.
Further, each described graphite boat piece is detachably located on described graphite boat body.
Further, each described graphite boat piece two sides are respectively equipped with fixed part, and described fixed part is located on described graphite boat body.
Further, the length of described fixed part is less than the length of described graphite boat piece.
Further, the width of described windshied part equals the width in described air port.
Further, each described graphite boat piece is provided with a mark part.
Tool of the present invention has the following advantages: a kind of ceramic package method for welding of the present invention, make oxidized for ceramic package soldering is not easy during pin, its production qualification rate is increased greatly, and make ceramic package be heated evenly in process of production, there will not be the cut down frame on ceramic package owing to being heated inequality and upwarping.
Accompanying drawing explanation
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the vertical view of the graphite boat in a kind of ceramic package method for welding of invention.
Embodiment
Ceramic package method for welding of the present invention, described method need provide a kind of graphite Noah's ark, specifically comprises the steps:
Step 1, the jack inserted by pin in graphite Noah's ark, be positioned over ceramic package on graphite Noah's ark afterwards;
Step 2, sealing up a door toward the entrance of soldering oven with the speed of 60ml/min is filled with nitrogen, and the speed with 30ml/min in the middle part of the burner hearth of soldering oven is filled with nitrogen; The nitrogen flow of sealing up a door out from the outlet of soldering oven is also 60ml/min, wherein entrance is sealed up a door and exported flow of sealing up a door is exactly burner and stove tail nitrogen flow, nitrogen is entered mainly in order to isolate burner hearth with extraneous in this place, avoids extraneous air oxygen to enter burner hearth and causes oxidation.And nitrogen is entered in burner hearth mid-way, ensure that in burner hearth be malleation, like this, only have the gas in burner hearth slowly to overflow outward, but the oxygen in the external world can enter burner hearth, just serve the effect of protection, and take away a part of heat in soldering oven;
Step 3, the travelling belt put into by described graphite Noah's ark on soldering oven, drive graphite Noah's ark to carry out soldering by travelling belt, take soldering oven out of after soldering.
Refer to shown in Fig. 1, graphite Noah's ark of the present invention, comprise graphite boat body 1, described graphite boat body 1 is provided with entrance end 11 and exit end 12, described entrance end 11 is relative with exit end 12, the entrance end 11 of described graphite boat body 1 and exit end 12 are symmetrically arranged with a plurality of jut 13, and be provided with air port 14 between described adjacent protrusions 13, described graphite boat body 1 is provided with a plurality of graphite boat piece 15, each described graphite boat piece 15 is provided with plurality of receptacles 151, described jack 151 is arranged in described graphite boat piece 15 both sides respectively, described air port 14 width is less than the minor increment between described graphite boat piece 15 both sides jack 151, at least one windshied part 16 is provided with between described two relative air ports 14, for the hot blast of coming in from air port 14 is scatter, and the cut down frame in graphite boat piece 15 also can be made to be heated evenly when going out, described graphite boat piece 15 is located between described windshied part 16 and air port 14 respectively, or described graphite boat piece 15 is located between described windshied part 16 and windshied part 16, each described graphite boat piece 15 is detachably located on described graphite boat body 1, be convenient to workman, in graphite boat piece 15, pin be installed, each described graphite boat piece 15 two sides are respectively equipped with fixed part 17, described fixed part 17 is located on described graphite boat body 1, the length of described fixed part 17 is less than the length of described graphite boat piece 15, the width of described windshied part 16 equals the width in described air port 14, each described graphite boat piece 15 is provided with a mark part 152, for reminding the placement direction of workman's graphite boat piece 15.
Wait in use, graphite boat piece 15 is first taken out by workman, backward graphite boat piece 15 jack 151 in insert pin, after being plugged, graphite boat piece 15 is positioned on graphite boat body 1 according to mark part 152 by workman, after successively all graphite boat piece 15 being inserted pin, the ceramic package that CPGA product is used is positioned in graphite boat piece 15, afterwards graphite boat body 1 is put into soldering oven entrance, can soldering be started afterwards.
Although the foregoing describe the specific embodiment of the present invention; but be familiar with those skilled in the art to be to be understood that; specific embodiment described by us is illustrative; instead of for the restriction to scope of the present invention; those of ordinary skill in the art, in the modification of the equivalence done according to spirit of the present invention and change, should be encompassed in scope that claim of the present invention protects.
Claims (7)
1. a ceramic package method for welding, is characterized in that: described method need provide a kind of graphite Noah's ark, specifically comprises the steps:
Step 1, the jack inserted by pin in graphite Noah's ark, be positioned over ceramic package on graphite Noah's ark afterwards;
Step 2, sealing up a door toward the entrance of soldering oven with the speed of 60ml/min is filled with nitrogen, and the speed with 30ml/min in the middle part of the burner hearth of soldering oven is filled with nitrogen;
Step 3, the travelling belt put into by described graphite Noah's ark on soldering oven, drive graphite Noah's ark to carry out soldering by travelling belt, take soldering oven out of after soldering.
2. a kind of ceramic package method for welding according to claim 1, it is characterized in that: described graphite Noah's ark comprises graphite boat body, described graphite boat body is provided with entrance end and exit end, described entrance end is relative with exit end, the entrance end of described graphite boat body and exit end are symmetrically arranged with a plurality of jut, and be provided with air port between described adjacent protrusions, described graphite boat body is provided with a plurality of graphite boat piece, each described graphite boat piece is provided with plurality of receptacles, described jack is arranged in described graphite boat piece both sides respectively, described air port width is less than the minor increment between the jack of described graphite boat piece both sides, at least one windshied part is provided with between described two relative air ports, described graphite boat piece is located between described windshied part and air port respectively, or described graphite boat piece is located between described windshied part and windshied part.
3. a kind of ceramic package method for welding as claimed in claim 2, is characterized in that: each described graphite boat piece is detachably located on described graphite boat body.
4. a kind of ceramic package method for welding as claimed in claim 2, is characterized in that: each described graphite boat piece two sides are respectively equipped with fixed part, and described fixed part is located on described graphite boat body.
5. a kind of ceramic package method for welding as claimed in claim 4, is characterized in that: the length of described fixed part is less than the length of described graphite boat piece.
6. a kind of ceramic package method for welding as claimed in claim 2, is characterized in that: the width of described windshied part equals the width in described air port.
7. a kind of ceramic package method for welding as claimed in claim 2, is characterized in that: each described graphite boat piece is provided with a mark part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926883.3A CN105330317B (en) | 2015-12-14 | 2015-12-14 | A kind of ceramic package method for welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510926883.3A CN105330317B (en) | 2015-12-14 | 2015-12-14 | A kind of ceramic package method for welding |
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| Publication Number | Publication Date |
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| CN105330317A true CN105330317A (en) | 2016-02-17 |
| CN105330317B CN105330317B (en) | 2017-12-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510926883.3A Active CN105330317B (en) | 2015-12-14 | 2015-12-14 | A kind of ceramic package method for welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598316A (en) * | 2017-10-19 | 2018-01-19 | 福建闽航电子有限公司 | A kind of fever tablet nickel wire method for welding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201833087U (en) * | 2010-11-03 | 2011-05-18 | 绍兴科盛电子有限公司 | Metal welding boat for semiconductor packaging soldering process |
| CN102699466A (en) * | 2012-06-19 | 2012-10-03 | 中国振华集团永光电子有限公司 | Brazing method of semiconductor electrode assembly |
| CN103949743A (en) * | 2014-05-04 | 2014-07-30 | 长沙威尔保新材料有限公司 | Welding method of ferrous metal |
-
2015
- 2015-12-14 CN CN201510926883.3A patent/CN105330317B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201833087U (en) * | 2010-11-03 | 2011-05-18 | 绍兴科盛电子有限公司 | Metal welding boat for semiconductor packaging soldering process |
| CN102699466A (en) * | 2012-06-19 | 2012-10-03 | 中国振华集团永光电子有限公司 | Brazing method of semiconductor electrode assembly |
| CN103949743A (en) * | 2014-05-04 | 2014-07-30 | 长沙威尔保新材料有限公司 | Welding method of ferrous metal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107598316A (en) * | 2017-10-19 | 2018-01-19 | 福建闽航电子有限公司 | A kind of fever tablet nickel wire method for welding |
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|---|---|
| CN105330317B (en) | 2017-12-19 |
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