CN109616242A - A kind of inductance is with exempting to plate termination electrode silver paste - Google Patents
A kind of inductance is with exempting to plate termination electrode silver paste Download PDFInfo
- Publication number
- CN109616242A CN109616242A CN201910134275.7A CN201910134275A CN109616242A CN 109616242 A CN109616242 A CN 109616242A CN 201910134275 A CN201910134275 A CN 201910134275A CN 109616242 A CN109616242 A CN 109616242A
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- Prior art keywords
- silver paste
- termination electrode
- exempt
- inductance
- plate termination
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/14—Conductive material dispersed in non-conductive inorganic material
- H01B1/16—Conductive material dispersed in non-conductive inorganic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/29—Terminals; Tapping arrangements for signal inductances
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Coils Or Transformers For Communication (AREA)
- Conductive Materials (AREA)
Abstract
Exempt to plate termination electrode silver paste the present invention relates to the technical field of electronic materials of electronic component more particularly to a kind of inductance.Its weight percent composition are as follows: ball shape silver powder 25%-35%, flake silver powder 15%-25%, oxidation silver powder 10%-15%, glass powder and other inorganic material 2%-4%, organic carrier 20%~25%, the sum of weight percent composition of each substance are 100%.Exempt to plate termination electrode silver paste using the inductance that silver paste of the present invention produces, baked strength is big, and sealing end presentation quality is good, and it is fine and close to be burnt into rear electrode layer; end adhesive force is high, and meets SMT encapsulation and require not film dancing, and resistivity is low; D.C. resistance RDC is small, and environmental protection exempts to plate, and protects environment.
Description
Technical field
The present invention relates to the technical field of electronic materials of electronic component more particularly to a kind of inductance with exempting to plate termination electrode
Silver paste and preparation method thereof.
Background technique
With the high speed development of the electronics and information industries such as mobile phone, computer, domestic electronic component market has welcome new
Fast-developing opportunity, in terms of laminated inductance element, as domestic manufacturer's production technology is increasingly mature, the whole world is existing close
50% inductor product has belonged to made in China, and 999sunlord, elegance and talent also have become global inductance yield and quality public affairs among the best
Department.In the molding of inductor product, termination electrode use or electroplating technologies most at present after burning end, electroplating technology by
In pollution of its nickel to environment, there is very big environmentally friendly drawbacks, and it is most regional at home at present that production is electroplated
Inside forbid.
Summary of the invention
For prior art defect, the present invention provides that a kind of to exempt from plating, environmental protection, the sense of excellent electrical properties silver-colored with exempting to plate termination electrode
Slurry.
To solve above-mentioned technical problem present invention provide the technical scheme that a kind of inductance with exempt from plate termination electrode silver paste,
Weight proportion are as follows: ball shape silver powder 25%-35%, flake silver powder 15%-25%, oxidation silver powder 10%-15%, glass powder and other
Inorganic material 2%-4%, organic carrier 20%~25%, the sum of weight percent composition of each substance are 100%.
Further, the ball silver belongs to our company and voluntarily develops, sphericity in above-mentioned inductance with exempting to plate in termination electrode silver paste
Height, good fluidity, 0.2-0.6 microns of partial size.The sheet silver, belongs to our company and voluntarily develops, chip type is good, and silver strip is thin, partial size
0.5-0.8 microns.The nano phase ag_2 o belongs to our company and voluntarily develops, and chip type is good, and silver strip is thin, and 50-150 nanometers of partial size.Institute
The borosilicate system glass that glass powder is 2-5 microns of partial size is stated, the inorganic material is di-iron trioxide, copper oxide, zinc oxide, oxygen
At least one of SiClx, boric acid.The organic carrier, using ethyl cellulose resin as the bonding of its organic carrier
Agent, the content 3-10% in organic carrier；A small amount of rosin is added, slurry stickiness is improved, helps to improve baked strength,
Its content 0.1-1% in organic carrier；Using the one or more of alcohols solvent, as main solvent, in organic carrier
In content 50-60%；Content 20- using the one or more of esters solvent, as cosolvent, in organic carrier
40%；The organic carrier of electrode slurry is made, excellent printing performance is provided for slurry, improves the presentation quality of product after sealing end
And baked strength.
Above-mentioned inductance with exempt from plate termination electrode silver paste preparation method: be fabricated to silver paste according to the conventional slurry technological process of production,
That is: resin, rosin and solvent are first prepared into organic carrier；After slurry is matched honest material by formula again, it is mixed using power
Machine is mixed, and is then fully ground that roller is thin using three-roll grinder, is reached certain fineness, viscosity requirement, was finally passed through
Filter adjusts, and bottling is formed silver-colored terminal electrode paste.
Compared with prior art, in addition to being prepared using ethyl cellulose, rosin, alcohols and esters solvent by certain formula
Organic carrier is provided outside one good rheological property of slurry, and the ball silver for taking sphericity high is matched with flake silver powder, that is, is guaranteed
The good mobile performance of slurry, and provide one good thixotropic property of slurry makes slurry i.e. not sagging, and end after patch silver
Smoothly, make inductor product electrode tip presentation quality good, the electrode tip occurred in the prior art is avoided, due to electrode slurry
Material thixotropic property and mobility matching problem occur sagging, tip, pit, pin hole the problems such as.Using Pyrex body
System, no bismuth is unleaded to comply fully with environmental requirement, and adhesive force is good with end for firing rear electrode layer densification, meets SMT encapsulation jump
Blade technolgy technical requirements；And surface is floated without glass, electrode solderability is good, provides condition for the performance requirement of exempting to plate of slurry, adds
It has used our company voluntarily to research and develop nano phase ag_2 o in upper formula, has kept slurry electrode activity after firing high, solderability is good, in turn
Slurry is set to realize the production technology for exempting from plating.
Specific embodiment:
Present subject matter is mutually to be arranged in pairs or groups by using the high ball silver of sphericity with flake silver powder, adulterates a certain proportion of receive
Rice oxidation silver powder selects suitable grain using borated silicate glass powder and the rational proportion of other inorganic adding materials, organic carrier
Diameter, obtain sealing end presentation quality it is good, excellent electrical properties exempt from plating environmental protection termination electrode silver paste.It is produced using this termination electrode silver paste
Inductor product, meet the film dancing requirement in SMT encapsulation technique.Inductance of the invention with exempt from plate termination electrode silver paste: one, using from
The organic carrier of row research and development, is provided in one good rheological property of slurry, with a strong baked strength；Two, this electrode slurry
The collocation that ball shape silver powder and flake silver powder are voluntarily researched and developed using our company is provided slurry one good thixotropic property, there is slurry
One good sealing end appearance, and, excellent electrical properties fine and close by firing rear electrode layer.Three, this electrode slurry uses our company
Nano phase ag_2 o is voluntarily researched and developed, keeps slurry electrode activity after firing high, solderability is good, realizes the production technology for exempting from plating.Four, originally
Electrode slurry voluntarily researches and develops borated silicate glass powder using our company, so that slurry is realized easy fired, while being lower than in glass content
It is supplied to one, slurry good end adhesive force under conditions of 3%, meets SMT of the inductor product produced in patch encapsulation
Film dancing requirement.The present invention is further illustrated below by embodiment, and the proportion content mentioned in embodiment is not to the present invention
Restriction, it is other made under present inventive concept silver paste formulation selection can adaptation to local conditions and substantial effect is had no to result.
The formula design of borosilicate glass powder is as shown in table 1 in the present invention.
Table 1:
As shown in table 2, selected glass powder is either table 1 case to the design of preferred embodiment formula in embodiment
:
Table 2:
The inorganic oxide is at least one of di-iron trioxide, nickel sesquioxide, copper oxide, zinc oxide, boric acid.
They can mix according to arbitrary proportion, and this mixing is the common means of those skilled in the art.
By the proportion material of above-described embodiment, it is fabricated to silver-colored terminal electrode paste according to the conventional slurry technological process of production, i.e.,
Slurry is mixed with after honest material using power mixing and blending machine by formula, three-roll grinder is recycled to be fully ground roller think of,
Reach certain fineness, viscosity requirement, using filtering, adjust, bottling is formed silver-colored terminal electrode paste.Resulting silver paste
Also inductor product is made according to the common laminated inductance preparation method of those skilled in the art, each embodiment resulting product takes
10, test performance is as shown in table 4:
Table 4:
As can be seen from the above Table 4, the resulting slurry of the present invention and MLCI porcelain body associativity are good, and firing electrode is fine and close, and
Electrode performance is excellent.
The above embodiment of the present invention is only intended to clearly illustrate examples made by the present invention, and is not to of the invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.It is all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the protection model of the claims in the present invention within mind and principle
Within enclosing.
Claims (6)
1. a kind of inductance with exempt from plate termination electrode silver paste, weight proportion are as follows: ball shape silver powder 25%-35%, flake silver powder 15%-
25%, silver powder 10%-15%, glass powder and other inorganic material 2%-4%, organic carrier 20%~25%, each substance are aoxidized
Weight percent composition the sum of be 100%.
2. inductance according to claim 1 with exempt from plate termination electrode silver paste, it is characterised in that: the ball shape silver powder partial size 0.2-
0.6 micron.
3. inductance according to claim 1 is with exempting to plate termination electrode silver paste, it is characterised in that: the partial size of the sheet silver is
0.5-0.8 microns.
4. inductance according to claim 1 with exempt from plate termination electrode silver paste, it is characterised in that: the nano phase ag_2 o is grain
50-150 nanometers of diameter.
5. inductance according to claim 1 with exempt from plate termination electrode silver paste, it is characterised in that: the glass powder is partial size 2-5
The borosilicate system glass of micron, the inorganic material be di-iron trioxide, copper oxide, zinc oxide, silica, in boric acid at least
It is a kind of.
6. inductance according to claim 1 with exempt from plate termination electrode silver paste, it is characterised in that: the weight of the organic carrier
Percentage composition be ethyl cellulose resin 3-10%, rosin 0.1-1%, alcohols solvent 50-60%, esters solvent 20-40%, respectively
The weight percent group of component becomes 100%.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811308675.7A CN109215843A (en) | 2018-11-05 | 2018-11-05 | A kind of inductance is with exempting to plate termination electrode silver paste |
| CN2018113086757 | 2018-11-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109616242A true CN109616242A (en) | 2019-04-12 |
| CN109616242B CN109616242B (en) | 2020-07-10 |
Family
ID=64994459
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811308675.7A Withdrawn CN109215843A (en) | 2018-11-05 | 2018-11-05 | A kind of inductance is with exempting to plate termination electrode silver paste |
| CN201910134275.7A Active CN109616242B (en) | 2018-11-05 | 2019-02-22 | End electrode silver paste without plating for inductor |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811308675.7A Withdrawn CN109215843A (en) | 2018-11-05 | 2018-11-05 | A kind of inductance is with exempting to plate termination electrode silver paste |
Country Status (1)
| Country | Link |
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| CN (2) | CN109215843A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115602437A (en) * | 2022-10-24 | 2023-01-13 | 清远市海之澜电子科技有限公司（Cn） | Preparation method of inductance magnetic core |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111292873B (en) * | 2020-02-24 | 2021-08-27 | 贵研铂业股份有限公司 | Electrode silver paste for functional ceramics and preparation method thereof |
| WO2022128177A1 (en) * | 2020-12-16 | 2022-06-23 | Heraeus Deutschland GmbH & Co. KG | Sintering paste and use thereof for connecting components |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728002A (en) * | 2010-01-15 | 2010-06-09 | 贵阳晶华电子材料有限公司 | End-blocking slurry for flaky component |
| CN103000251A (en) * | 2012-11-10 | 2013-03-27 | 江苏瑞德新能源科技有限公司 | Solar cell silver-backed slurry with wide sintering process window |
| CN106098150A (en) * | 2016-08-30 | 2016-11-09 | 中国振华集团云科电子有限公司 | The inductor ends of low-temperature sintering low silver content is coated with formula of silver slurry and preparation method thereof |
| CN107093489A (en) * | 2017-05-05 | 2017-08-25 | 肇庆市辰业电子有限公司 | A kind of inductance silver paste of inner electrode and preparation method thereof |
-
2018
- 2018-11-05 CN CN201811308675.7A patent/CN109215843A/en not_active Withdrawn
-
2019
- 2019-02-22 CN CN201910134275.7A patent/CN109616242B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728002A (en) * | 2010-01-15 | 2010-06-09 | 贵阳晶华电子材料有限公司 | End-blocking slurry for flaky component |
| CN103000251A (en) * | 2012-11-10 | 2013-03-27 | 江苏瑞德新能源科技有限公司 | Solar cell silver-backed slurry with wide sintering process window |
| CN106098150A (en) * | 2016-08-30 | 2016-11-09 | 中国振华集团云科电子有限公司 | The inductor ends of low-temperature sintering low silver content is coated with formula of silver slurry and preparation method thereof |
| CN107093489A (en) * | 2017-05-05 | 2017-08-25 | 肇庆市辰业电子有限公司 | A kind of inductance silver paste of inner electrode and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115602437A (en) * | 2022-10-24 | 2023-01-13 | 清远市海之澜电子科技有限公司（Cn） | Preparation method of inductance magnetic core |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109616242B (en) | 2020-07-10 |
| CN109215843A (en) | 2019-01-15 |
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