CN105989909A - Inner electrode conductive silver paste for low temperature co-firing microwave dielectric ceramics and preparation method thereof - Google Patents
Inner electrode conductive silver paste for low temperature co-firing microwave dielectric ceramics and preparation method thereof Download PDFInfo
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- CN105989909A CN105989909A CN201510051970.9A CN201510051970A CN105989909A CN 105989909 A CN105989909 A CN 105989909A CN 201510051970 A CN201510051970 A CN 201510051970A CN 105989909 A CN105989909 A CN 105989909A
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Abstract
The present invention provides an inner electrode conductive silver paste for low temperature co-firing microwave dielectric ceramics and a preparation method thereof. The inner electrode conductive silver paste comprises the following components, by mass ratio: 70-92% of silver particles, 0-10% inorganic substance additive, 5-25% of carrier, 0.3-1% of promoter and 0.5-5% of solvents. The inner electrode conductive silver paste has good co-firing matching with the dielectric ceramics with microwave features, good printing and excellent conductivity. The method is simple in step and easy to realize the industrialization.
Description
Technical field
The present invention relates to a kind of electrocondution slurry and preparation method thereof, particularly relate to one and be applied to low temperature co-fired microwave dielectric pottery
Interior electrodes conduct silver slurry and preparation method thereof.
Background technology
Along with developing rapidly of modern information technologies, to the miniaturization of electronic product, facilitation, multi-functional, highly reliable propose
Demand, LTCC Technology (Low temperature co-fired ceramic, LTCC) is that the one of rising in recent years is made us
The integrated assembly technology of the multi-crossed disciplines attracted attention, because of its excellence electronics, that thermo-mechanical property has become future electronic element is integrated
Change, modular first-selection.LTCC low dielectric constant microwave dielectric material high frequency is the inexorable trend of microwave device development,
And low-k, low-loss are the design basis of device, especially in Military Application field.
During LTCC low dielectric constant microwave dielectric materials application, need in most cases to print in pottery film strips
Conductive silver paste.But, existing conductive silver paste and LTCC low dielectric constant microwave dielectric material on matching, printing or
On electric conductivity the most not fully up to expectations.Wherein, the schematic diagram of interior electrode conductive paste as it is shown in figure 1, in general, including film
Band 10, and the conductor silver slurry 20 being printed between film strips.
Therefore, it is an object of the invention to provide interior electrodes conduct silver slurry of kind and preparation method thereof, this interior electrodes conduct silver slurry needs
There is the advantages such as good with the media ceramic system film strips co-fire match of microwave property, printing is good, electric conductivity is excellent.
Summary of the invention
The shortcoming of prior art in view of the above, it is an object of the invention to provide one and is applied to low temperature co-fired microwave dielectric pottery
Interior electrodes conduct silver slurry of porcelain and preparation method thereof, that it has is good with the media ceramic system film strips co-fire match of microwave property,
The advantages such as printing is good, electric conductivity is excellent.
For achieving the above object and other relevant purposes, the present invention provides a kind of interior electricity being applied to low temperature co-fired microwave dielectric pottery
Pole conductive silver paste, described interior electrodes conduct silver is starched by quality ratio, including following components: Argent grain, 0%～10% of 70%～92%
The carrier of inorganic additive, 5%～25%, 0.3～the auxiliary agent of 1% and the solvent of 0.5%～5%.
As a kind of preferred version of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention, described silver
Powder pattern is spherical and one or both mixing in lamellar；Selected from D50, between 1～3 micron and D90 is not more than particle size
The argentum powder of 5 microns.
As a kind of preferred version of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention, described nothing
Machine thing additive in parts by weight, including following components: the Al of 0～50 part2O3, the SiO of 0～40 part2, the Bi of 0～35 part2O3、
The CaCO of 0～45 part3, and the SrCaO of 0～15 part3。
As a kind of preferred version of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention, described load
Body by quality ratio, including the mixing of following components: 10～the Special Resin of 30% and the solvent of 90%～70%.
Further, described Special Resin is mixed above selected from the one or two kinds of of esters, alkoxide and cellulose family, institute
State the solvent one or two kinds of mixing selected from alcohols and ethers.
As the present invention be applied to low temperature co-fired microwave dielectric pottery interior electrodes conduct silver slurry a kind of preferred version, described in help
The composition of agent includes silane coupler.
As a kind of preferred version of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention, described molten
Agent is selected from the one or two kinds of mixing of alcohols and ethers.
Further, described alcohols includes terpineol, butyl carbitol acetate one or two kinds of mixing, described ethers includes
Butyl, diethylene glycol ether, butyl acetate one or two kinds of are mixed above.
The present invention also provides for the preparation method of a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery, including step
Rapid:
Step 1), proportionally raw material is mixed in the mixing plant with cooling system；
Step 2), the slurry in mixing plant is taken out, is disperseing with on cooling system grinder；
Step 3), use drainage screen to filter the slurry after dispersion with electrodes conduct silver paste in obtaining..
One as the preparation method of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention is the most square
Case, wherein:
Step 1) in, the incorporation time of selection is 20～60 minutes；
Step 2) in, the fineness of dispersion of described slurry controls at no more than 5 microns, and the range of viscosities of slurry controls
50～200Kcps；
Step 3) in, the drainage screen of employing is 325 mesh drainage screens.
As it has been described above, the present invention provides a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery and preparation side thereof
Method, described interior electrodes conduct silver is starched by quality ratio, including following components: Argent grain, 0%～10% of 70%～92% inorganic
The carrier of thing additive, 5%～25%, 0.3～the auxiliary agent of 1% and the solvent of 0.5%～5%.The interior electrodes conduct silver of the present invention
Slurry has the advantages such as the co-fire match of media ceramic system film strips with microwave property is good, printing is good, electric conductivity is excellent.
The inventive method step is simple, easily realizes industrialization.
Accompanying drawing explanation
Fig. 1 is shown as the structural representation formed after interior electrodes conduct silver slurry burns altogether with film strips.
Fig. 2 is shown as the step of the preparation method of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present invention
Schematic flow sheet.
Element numbers explanation
S11～S13 step 1)～step 3)
Detailed description of the invention
Below by way of specific instantiation, embodiments of the present invention being described, those skilled in the art can be by disclosed by this specification
Content understand other advantages and effect of the present invention easily.The present invention can also be added by the most different detailed description of the invention
To implement or application, the every details in this specification can also be based on different viewpoints and application, in the essence without departing from the present invention
Various modification or change is carried out under god.
Refer to Fig. 2.It should be noted that the diagram provided in the present embodiment illustrates that the present invention's is basic the most in a schematic way
Conception, the most graphic in component count, shape and size time only display with relevant assembly in the present invention rather than is implemented according to reality
Drawing, during its actual enforcement, the kenel of each assembly, quantity and ratio can be a kind of random change, and its assembly layout kenel is also
It is likely more complexity.
Embodiment 1
The present embodiment provides a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery, described interior electrodes conduct silver
Starch by quality ratio, including following components: the Argent grain of 70%, the inorganic additive of 10%, the carrier of 15%, 0.5% help
Agent and the solvent of 4.5%.
As example, described Argent grain selected from pattern be spherical, particle size selected from D50 between 1～3 micron and D90 not
Argentum powder more than 5 microns
As example, described inorganic additive in parts by weight, including following components: the Al of 25 parts2O3, the SiO of 40 parts2、
The Bi of 5 parts2O3, the CaCO of 20 parts3, and the SrCaO of 10 parts3。
As example, described carrier by quality ratio, including the mixing of following components: the Special Resin of 30% and 70%
Solvent.Further, described Special Resin is selected from esters, and described solvent is selected from alcohols.
As example, the composition of described auxiliary agent is silane coupler.
As example, described solvent is selected from alcohols, specially terpineol.
As in figure 2 it is shown, the present embodiment provides the preparation of a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery
Method, including step:
First, carry out step 1 as shown in Figure 2) S11, proportionally raw material is carried out in the mixing plant with cooling system
Mixing, in the present embodiment, the incorporation time of selection is 20～60 minutes, specially 30 minutes；
Then, carry out step 2 as shown in Figure 2) S12, takes out the slurry in mixing plant, with cooling system grinder
On disperse, specifically, the fineness of dispersion of described slurry controls at no more than 5 microns, and the range of viscosities of slurry controls
50～200Kcps；
Then, step 3 is carried out as shown in Figure 2) S13, use drainage screen to filter the slurry after dispersion with electrode in obtaining
Conductive silver paste, specifically, the drainage screen of employing is 325 mesh drainage screens.
Being proved by test, the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery of the present embodiment, at 100um
Live width and line-spacing under there is good printing, the media ceramic system film strips matching performance of microwave property is good, without cracking,
Short circuit, warpage, conductive resistance is less than 3m Ω/sq/mil.
Embodiment 2
The present embodiment provides a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery, described interior electrodes conduct silver
Slurry by quality ratio, including following components: the Argent grain of 92%, the inorganic additive of 1%, the carrier of 4%, the auxiliary agent of 0.3%,
And the solvent of 2.7%.
As example, described Argent grain selected from pattern be lamellar, particle size selected from D50 between 1～3 micron and D90 not
Argentum powder more than 5 microns.
As example, described inorganic additive in parts by weight, including following components: the Al of 20 parts2O3, the SiO of 35 parts2、
The Bi of 10 parts2O3, the CaCO of 20 parts3, and the SrCaO of 15 parts3。
As example, described carrier by quality ratio, including the mixing of following components: the Special Resin of 10% and 90%
Solvent.Further, described Special Resin is selected from alkoxide, and described solvent is selected from ethers.
As example, the composition of described auxiliary agent includes silane coupler.
As example, described solvent is selected from ethers, specially butyl.
As in figure 2 it is shown, the present embodiment provides the preparation of a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery
Method, including step:
First, carry out step 1 as shown in Figure 2) S11, proportionally raw material is carried out in the mixing plant with cooling system
Mixing, in the present embodiment, the incorporation time of selection is 20～60 minutes, specially 30 minutes；
Then, carry out step 2 as shown in Figure 2) S12, takes out the slurry in mixing plant, with cooling system grinder
On disperse, specifically, the fineness of dispersion of described slurry controls at no more than 5 microns, and the range of viscosities of slurry controls
50～200Kcps；
Then, step 3 is carried out as shown in Figure 2) S13, use drainage screen to filter the slurry after dispersion with electrode in obtaining
Conductive silver paste, specifically, the drainage screen of employing is 325 mesh drainage screens.
Embodiment 3
The present embodiment provides a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery, described interior electrodes conduct silver
Starch by quality ratio, including following components: the Argent grain of 85%, the inorganic additive of 5%, the carrier of 8%, 1% help
Agent and the solvent of 1%.
As example, selected from D50, between 1～3 micron and D90 is not more than the argentum powder of 5 microns, shape to described Argent grain size
Looks are lamellar 50 parts, spherical 50 powder.
As example, described inorganic additive in parts by weight, including following components: the Al of 20 parts2O3, the SiO of 15 parts2、
The Bi of 35 parts2O3, the CaCO of 25 parts3, and the SrCaO of 5 parts3。
As example, described carrier by quality ratio, including the mixing of following components: the Special Resin of 20% and 80%
Solvent.Further, described Special Resin is cellulose family, and described solvent is alcohols.
As example, the composition of described auxiliary agent includes silane coupler.
As example, described solvent is selected from alcohols, specially terpineol.
As in figure 2 it is shown, the present embodiment provides the preparation of a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery
Method, including step:
First, carry out step 1 as shown in Figure 2) S11, proportionally raw material is carried out in the mixing plant with cooling system
Mixing, in the present embodiment, the incorporation time of selection is 20～60 minutes, specially 30 minutes；
Then, carry out step 2 as shown in Figure 2) S12, takes out the slurry in mixing plant, with cooling system grinder
On disperse, specifically, the fineness of dispersion of described slurry controls at no more than 5 microns, and the range of viscosities of slurry controls
50～200Kcps；
Then, step 3 is carried out as shown in Figure 2) S13, use drainage screen to filter the slurry after dispersion with electrode in obtaining
Conductive silver paste, specifically, the drainage screen of employing is 325 mesh drainage screens.
As it has been described above, the present invention provides a kind of interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery and preparation side thereof
Method, described interior electrodes conduct silver is starched by quality ratio, including following components: Argent grain, 0%～10% of 70%～92% inorganic
The carrier of thing additive, 5%～25%, 0.3～the auxiliary agent of 1% and the solvent of 0.5%～5%.The interior electrodes conduct silver of the present invention
Slurry has the advantages such as the co-fire match of media ceramic system film strips with microwave property is good, printing is good, electric conductivity is excellent.
The inventive method step is simple, easily realizes industrialization.So, the present invention effectively overcome various shortcoming of the prior art and
Tool high industrial utilization.
The principle of above-described embodiment only illustrative present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, such as
All that in art, tool usually intellectual is completed under without departing from disclosed spirit and technological thought etc.
Effect is modified or changes, and must be contained by the claim of the present invention.
Claims (10)
1. the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery, it is characterised in that described interior electrodes conduct silver is starched
By quality ratio, including following components: the inorganic additive of Argent grain, 0%～10%, 5%～25% of 70%～92%
Carrier, 0.3～the auxiliary agent of 1% and the solvent of 0.5%～5%.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 1, it is characterised in that: institute
Stating morphologies is spherical and one or both mixing in lamellar；Particle size selected from D50 between 1～3 micron and D90
It is not more than the argentum powder of 5 microns.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 1, it is characterised in that: institute
State inorganic additive in parts by weight, including following components: the Al2O of 0～50 part3, the SiO of 0～40 part2, 0～35 part
Bi2O3, the CaCO of 0～45 part3, and the SrCaO of 0～15 part3。
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 1, it is characterised in that: institute
State carrier by quality ratio, including the mixing of following components: 10～the Special Resin of 30% and the solvent of 90%～70%.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 4, it is characterised in that: institute
Stating Special Resin mixed above selected from the one or two kinds of of esters, alkoxide and cellulose family, described solvent is selected from alcohols
And the one or two kinds of mixing of ethers.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 1, it is characterised in that: institute
The composition stating auxiliary agent includes silane coupler.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 1, it is characterised in that: institute
State solvent selected from one or both of alcohols and ethers.
The interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 7, it is characterised in that: institute
State alcohols and include that terpineol, butyl carbitol acetate one or two kinds of mix, described ethers include butyl,
Diethylene glycol ether, butyl acetate one or two kinds of are mixed above.
9. one kind as described in claim 1～8 any one be applied to low temperature co-fired microwave dielectric pottery interior electrodes conduct silver slurry
Preparation method, it is characterised in that include step:
Step 1), proportionally raw material is mixed in the mixing plant with cooling system；
Step 2), the slurry in mixing plant is taken out, is disperseing with on cooling system grinder；
Step 3), use drainage screen to filter the slurry after dispersion with electrodes conduct silver paste in obtaining.
The preparation method of the interior electrodes conduct silver slurry being applied to low temperature co-fired microwave dielectric pottery the most according to claim 9, its
It is characterised by:
Step 1) in, the incorporation time of selection is 20～60 minutes；
Step 2) in, the fineness of dispersion of described slurry controls at no more than 5 microns, and the range of viscosities of slurry controls
50～200Kcps；
Step 3) in, the drainage screen of employing is 325 mesh drainage screens.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051970.9A CN105989909A (en) | 2015-01-30 | 2015-01-30 | Inner electrode conductive silver paste for low temperature co-firing microwave dielectric ceramics and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051970.9A CN105989909A (en) | 2015-01-30 | 2015-01-30 | Inner electrode conductive silver paste for low temperature co-firing microwave dielectric ceramics and preparation method thereof |
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| CN105989909A true CN105989909A (en) | 2016-10-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240433A (en) * | 2017-05-12 | 2017-10-10 | 广东风华高新科技股份有限公司 | silver electrode paste and preparation method thereof |
| CN113498406A (en) * | 2020-02-05 | 2021-10-12 | 费罗公司 | M7 LTCC-silver systems and related dielectric compositions for high frequency applications |
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| KR20090067992A (en) * | 2007-12-21 | 2009-06-25 | 제일모직주식회사 | Composition of paste for fabricating the electrode |
| CN103762010A (en) * | 2011-12-31 | 2014-04-30 | 四川虹欧显示器件有限公司 | Conductive silver paste, preparation method and electrode made from conductive silver paste |
| CN104157326A (en) * | 2014-08-05 | 2014-11-19 | 上海蓝沛新材料科技股份有限公司 | Inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and preparation method thereof |
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2015
- 2015-01-30 CN CN201510051970.9A patent/CN105989909A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090067992A (en) * | 2007-12-21 | 2009-06-25 | 제일모직주식회사 | Composition of paste for fabricating the electrode |
| CN103762010A (en) * | 2011-12-31 | 2014-04-30 | 四川虹欧显示器件有限公司 | Conductive silver paste, preparation method and electrode made from conductive silver paste |
| CN104157326A (en) * | 2014-08-05 | 2014-11-19 | 上海蓝沛新材料科技股份有限公司 | Inner electrode conductive gold pulp applied to low temperature co-fired ceramic, and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107240433A (en) * | 2017-05-12 | 2017-10-10 | 广东风华高新科技股份有限公司 | silver electrode paste and preparation method thereof |
| CN113498406A (en) * | 2020-02-05 | 2021-10-12 | 费罗公司 | M7 LTCC-silver systems and related dielectric compositions for high frequency applications |
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Application publication date: 20161005 |