CN102903422A - Silk print full-silver-end electrode slurry for capacitor - Google Patents
Silk print full-silver-end electrode slurry for capacitor Download PDFInfo
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- CN102903422A CN102903422A CN2012104047031A CN201210404703A CN102903422A CN 102903422 A CN102903422 A CN 102903422A CN 2012104047031 A CN2012104047031 A CN 2012104047031A CN 201210404703 A CN201210404703 A CN 201210404703A CN 102903422 A CN102903422 A CN 102903422A
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Abstract
The invention discloses silk print full-silver-end electrode slurry for a capacitor. The silk print full-silver-end electrode slurry for the capacitor comprises the following components in percentage by weight: 75-79% of silver powder, 2-4% of glass powder and the balance of organic carriers, wherein the organic carriers consist of 2-4% of resin in percentage by weight of the whole slurry, 13-21% of an organic solvent in percentage by weight of the whole slurry and an organic additive. The fineness of the slurry can reach 4-5mu m, and the slurry is suitable for a silk-screen printing technology, and is widely applied to the production of wafer capacitors, core penetration capacitors and the like.
Description
Technical field
The present invention relates to a kind of electric slurry, but relate in particular to a kind of electric capacity complete silver-colored terminal electrode paste of silk-screen.
Background technology
Ceramic capacitor is one of the highest electronic component of present chip rate.In the low-voltage field, chip multilayer ceramic capacitor is replacing Disk Ceramic Capacitors.But the demand of minitype high voltage, interchange Disk Ceramic Capacitors is still very powerful, and the application in telecommunications and audio/video devices progressively enlarges.China, Southeast Asia, Korea S, Brazil waited, and had become the main grown place of world's Disk Ceramic Capacitors.This patent is intended to introduce a kind of Disk Ceramic Capacitors and starches with silver, this silver slurry is by the size matching to silver powder in the slurry system, the an amount of interpolation of flake silver powder, adopt simultaneously the good organic carrier of bismuth borated silicate glass powder and rheological characteristic, applicable craft is extensive, can print, and can spray etc., and electrical property is good after burning, and solderability is good.
Summary of the invention
But the technical problem to be solved in the present invention provides the good electric capacity of a kind of good dispersion, superior performance, the feature of environmental protection with the complete silver-colored terminal electrode paste of silk-screen.
The technical problem to be solved in the present invention is achieved through the following technical solutions: but a kind of electric capacity complete silver-colored terminal electrode paste of silk-screen, and percentage by weight consists of: silver powder 75-79%, glass dust 2-4%, surplus are organic carriers; Described organic carrier is 2-4% resin and to account for whole slurry weight percentage be that 13-21% organic solvent and organic additive form by accounting for whole slurry weight percentage.
Further: but use in the complete silver-colored terminal electrode paste of silk-screen at above-mentioned electric capacity, described silver powder comprises flake silver powder and ball shape silver powder, and described glass dust is bismuth borosilicate system, and its percentage by weight consists of and comprises Bi
2O
370%, SiO
210%, B
2O
315%, also have 5% to be other materials that those skilled in the art commonly use.Described resin is one or both in abietic resin, the ethyl cellulose.Described organic solvent is one or both in terpinol, the isooctanol.Described organic additive is one or both in castor oil, the lecithin.
Compared with prior art, but the electric capacity of the present invention complete silver-colored terminal electrode paste of silk-screen, and its percentage by weight consists of: silver powder 75-79%, glass dust 2-4%, surplus are organic carriers; Described organic carrier is 2-4% resin and to account for whole slurry weight percentage be that 13-21% organic solvent forms by accounting for whole slurry weight percentage.The effect of organic carrier is for slurry provides certain good silk screen printing performance, to satisfy the manufacturing technique requirent of wafer capacitance silk-screen.Glass dust adopts bismuth borated silicate glass powder, and its Main Function is to help the silver powder sintering, and an adhesive force between silver layer and the substrate is provided simultaneously.Silver powder is the key component of slurry, also is functional material.Silver powder among the present invention adopts the size particles mix and match; the particle diameter of silver powder is (0.05-0.6) μ m; also having added simultaneously the percentage that accounts for the silver powder total weight and be 0-50% flake silver powder, all is to burn till rear electrode compactness in order to increase, and improves solderability.In slurry manufacturing process of the present invention, owing to adopt multiple silver powder, therefore, we were mixed with slurry with various silver powder first separately before the preparation slurry, then mix by component design, finally make the finished product slurry, guarantee slurry dispersing uniformity, stability.The fineness of finished product slurry of the present invention can reach 4～5 μ m, and suitable silk-screen printing technique; Be widely used in the production of wafer capacitance, feedthrough capacitor etc.
Embodiment
Purport of the present invention is by adjusting the proportioning of each component in the all-silver electronic paste, select suitable silver powder, organic solvent, macromolecule resin, inorganic additive, obtains superior performance, all-silver electronic paste that the feature of environmental protection is good.Below in conjunction with embodiment content of the present invention is described in further detail, mentioned content is not limitation of the invention among the embodiment, and the selection of the process conditions such as temperature, time and material prescription can be suited measures to local conditions and the result be there is no substantial effect among the preparation method.
Embodiment
The formulation Example prescription of the best of the present invention forms as shown in table 1:
Table 1
But the complete silver-colored terminal electrode paste of silk-screen that the present invention makes according to above prescription, the performance of making again the wafer capacitance device is shown in Table 2.
Table 2
| Production code member | Outward appearance | Conventional electrical property | Solderability | Product hierarchy |
| 1 | Generally | Generally | Generally | Generally |
| 2 | Generally | Well | Generally | Generally |
| 3 | Generally | Generally | Poor | Poor |
| 4 | Excellent | Excellent | Excellent | Excellent |
| 5 | Excellent | Excellent | Excellent | Excellent |
| 6 | Excellent | Excellent | Generally | Generally |
| 7 | Generally | Generally | Generally | Generally |
By above-mentioned experimental result, equal OK on electrical property, the solderability behind the silver slurry sintering of experiment numbers 4 and 5 design preparations, but taking cost into account, final choice experiment numbering 4 is preferred plan.
The electric performance test data of experiment numbers 4 capacitors
Claims (5)
1. but an electric capacity is with the complete silver-colored terminal electrode paste of silk-screen, and its percentage by weight consists of: silver powder 75-79%, glass dust 2-4%, surplus are organic carriers; Described organic carrier is 2-4% resin and to account for whole slurry weight percentage be that 13-21% organic solvent and organic additive form by accounting for whole slurry weight percentage.
2. but electric capacity according to claim 1 is with the complete silver-colored terminal electrode paste of silk-screen, and it is characterized in that: described silver powder comprises flake silver powder and ball shape silver powder, and described glass dust is bismuth borosilicate system, and its percentage by weight consists of and comprises Bi
2O
370%, SiO
210%, B
2O
315%.
3. but electric capacity according to claim 2 is with the complete silver-colored terminal electrode paste of silk-screen, and it is characterized in that: described resin is one or both in abietic resin, the ethyl cellulose.
4. but electric capacity according to claim 3 is with the complete silver-colored terminal electrode paste of silk-screen, and it is characterized in that: described organic solvent is one or both in terpinol, the isooctanol.
5. but electric capacity according to claim 4 is with the complete silver-colored terminal electrode paste of silk-screen, and it is characterized in that: described organic additive is one or both in castor oil, the lecithin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210404703.1A CN102903422B (en) | 2012-10-23 | 2012-10-23 | Silk print full-silver-end electrode slurry for capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210404703.1A CN102903422B (en) | 2012-10-23 | 2012-10-23 | Silk print full-silver-end electrode slurry for capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102903422A true CN102903422A (en) | 2013-01-30 |
| CN102903422B CN102903422B (en) | 2015-06-17 |
Family
ID=47575621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210404703.1A Active CN102903422B (en) | 2012-10-23 | 2012-10-23 | Silk print full-silver-end electrode slurry for capacitor |
Country Status (1)
| Country | Link |
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| CN (1) | CN102903422B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390444A (en) * | 2013-07-31 | 2013-11-13 | 广东风华高新科技股份有限公司 | Lead-free electrode slurry used for chip resistor |
| CN109346322A (en) * | 2018-10-17 | 2019-02-15 | 成都宏明电子科大新材料有限公司 | A kind of pulse power ceramic capacitor, termination electrode and preparation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206939A (en) * | 2007-12-14 | 2008-06-25 | 广东风华高新科技股份有限公司 | Method for manufacturing piece type base metal resistor |
| CN101692410A (en) * | 2009-08-21 | 2010-04-07 | 广东风华高新科技股份有限公司 | Silver paste of MLCC terminal electrode |
| CN101986390A (en) * | 2010-11-23 | 2011-03-16 | 肇庆市羚光电子化学品材料科技有限公司 | Silver paste for disk capacitor electrode |
| CN102157221A (en) * | 2011-03-28 | 2011-08-17 | 彩虹集团公司 | Method for preparing electrode silver paste for environment-friendly semiconductor capacitor |
-
2012
- 2012-10-23 CN CN201210404703.1A patent/CN102903422B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206939A (en) * | 2007-12-14 | 2008-06-25 | 广东风华高新科技股份有限公司 | Method for manufacturing piece type base metal resistor |
| CN101692410A (en) * | 2009-08-21 | 2010-04-07 | 广东风华高新科技股份有限公司 | Silver paste of MLCC terminal electrode |
| CN101986390A (en) * | 2010-11-23 | 2011-03-16 | 肇庆市羚光电子化学品材料科技有限公司 | Silver paste for disk capacitor electrode |
| CN102157221A (en) * | 2011-03-28 | 2011-08-17 | 彩虹集团公司 | Method for preparing electrode silver paste for environment-friendly semiconductor capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390444A (en) * | 2013-07-31 | 2013-11-13 | 广东风华高新科技股份有限公司 | Lead-free electrode slurry used for chip resistor |
| CN109346322A (en) * | 2018-10-17 | 2019-02-15 | 成都宏明电子科大新材料有限公司 | A kind of pulse power ceramic capacitor, termination electrode and preparation method |
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| Publication number | Publication date |
|---|---|
| CN102903422B (en) | 2015-06-17 |
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