CN102758228A - Sulfonic acid type semi-bright pure tin electroplating solution - Google Patents
Sulfonic acid type semi-bright pure tin electroplating solution Download PDFInfo
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- CN102758228A CN102758228A CN2012102435047A CN201210243504A CN102758228A CN 102758228 A CN102758228 A CN 102758228A CN 2012102435047 A CN2012102435047 A CN 2012102435047A CN 201210243504 A CN201210243504 A CN 201210243504A CN 102758228 A CN102758228 A CN 102758228A
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- sulfonic acid
- pure tin
- acid type
- tin
- electroplate liquid
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 116
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 title claims abstract description 37
- 238000009713 electroplating Methods 0.000 title abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 238000005282 brightening Methods 0.000 claims abstract description 16
- 239000000080 wetting agent Substances 0.000 claims abstract description 10
- -1 alkyl sulfonic acid Chemical compound 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims description 58
- 239000002253 acid Substances 0.000 claims description 27
- 238000007670 refining Methods 0.000 claims description 7
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 claims description 6
- 239000004615 ingredient Substances 0.000 claims description 6
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinyl group Chemical group C1(O)=CC(O)=CC=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 claims description 6
- CCIVGXIOQKPBKL-UHFFFAOYSA-N ethanesulfonic acid Chemical compound CCS(O)(=O)=O CCIVGXIOQKPBKL-UHFFFAOYSA-N 0.000 claims description 4
- 235000013162 Cocos nucifera Nutrition 0.000 claims description 3
- 244000060011 Cocos nucifera Species 0.000 claims description 3
- JALQQBGHJJURDQ-UHFFFAOYSA-L bis(methylsulfonyloxy)tin Chemical compound [Sn+2].CS([O-])(=O)=O.CS([O-])(=O)=O JALQQBGHJJURDQ-UHFFFAOYSA-L 0.000 claims description 3
- 150000002191 fatty alcohols Chemical class 0.000 claims description 3
- 238000007747 plating Methods 0.000 abstract description 35
- 230000007062 hydrolysis Effects 0.000 abstract description 7
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 7
- 238000007254 oxidation reaction Methods 0.000 abstract description 6
- 238000002425 crystallisation Methods 0.000 abstract description 4
- 230000008025 crystallization Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 150000003839 salts Chemical class 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 2
- 239000003381 stabilizer Substances 0.000 abstract 1
- 229910001432 tin ion Inorganic materials 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 32
- 238000000576 coating method Methods 0.000 description 32
- 150000003460 sulfonic acids Chemical class 0.000 description 16
- 238000000034 method Methods 0.000 description 12
- IUTCEZPPWBHGIX-UHFFFAOYSA-N tin(2+) Chemical compound [Sn+2] IUTCEZPPWBHGIX-UHFFFAOYSA-N 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 6
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 229910052802 copper Inorganic materials 0.000 description 6
- 239000010949 copper Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 239000008367 deionised water Substances 0.000 description 4
- 229910021641 deionized water Inorganic materials 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000004062 sedimentation Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011026 diafiltration Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RILZRCJGXSFXNE-UHFFFAOYSA-N 2-[4-(trifluoromethoxy)phenyl]ethanol Chemical compound OCCC1=CC=C(OC(F)(F)F)C=C1 RILZRCJGXSFXNE-UHFFFAOYSA-N 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 208000003464 asthenopia Diseases 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 125000002485 formyl group Chemical class [H]C(*)=O 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- RCIVOBGSMSSVTR-UHFFFAOYSA-L stannous sulfate Chemical compound [SnH2+2].[O-]S([O-])(=O)=O RCIVOBGSMSSVTR-UHFFFAOYSA-L 0.000 description 1
- 238000005494 tarnishing Methods 0.000 description 1
- 229910000375 tin(II) sulfate Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
Abstract
The invention discloses a sulfonic acid type semi-bright pure tin electroplating solution. The sulfonic acid type semi-bright pure tin electroplating solution comprises the following components: 60-150 g/L of alkyl sulfonic acid, 150-280 g/L of tin alkyl sulfate, 0.1-10 g/L of brightening agent, 0.5-10 g/L of stabilizer, 1.0-20 g/L of wetting agent and 0.1-6 g/L of grain refiner. According to the sulfonic acid type semi-bright pure tin electroplating solution disclosed by the invention, the tin alkyl sulfate is adopted as main salt and cooperated with the other components, so that the components in the tin electroplating solution have good dispersity, and the hydrolysis of tin ions and the oxidization of the brightening agent and the like are effectively avoided; the sulfonic acid type semi-bright pure tin electroplating solution guarantees that the semi-bright pure tin electroplating solution has the advantages of clearness and transparency, high stability, good compatibility, high generality, safety and environmental friendliness; the plating solution is high in current efficiency and fast in plating speed; and the obtained pure tin-plated layer has fine crystallization, uniform matte degree and excellent performance.
Description
Technical field
The invention belongs to technical field of surface, concrete a kind of sulfonic acid type half bright pure tin electroplate liquid that relates to.
Background technology
The tin coating good stability, corrosion-resistant, anti-tarnishing ability is strong, coating is nontoxic, soft, and good weldability and ductility are arranged, and therefore in industry, is widely used.In order to prevent operation or user of service's eyestrain, current trend adopts coating and the surface decoration tech that hangs down reflective or no-reflection.Different with bright tin plating, this type is zinc-plated to be called half bright tin plating, or mute light tin plating technique, and its gained coating is called as half bright tin or mute tin, mist tin.Half bright tin plating additive is single simple, and plating bath is manageable, and the crystallization of ability refinement coating improves dispersive ability, but do not make coating produce light.This technology helps improving coating adhesion and compactness, on assembling line, has reduced the luminous reflectance pollution simultaneously.On unicircuit, printed wiring version, electronic devices and components, all be widely used.For reaching the effect of half bright coating, adopted tinsel coating in the past more.Along with increasingly high environmental requirement, plumbous use receives strict restriction more, thereby half light plating pure tin technology will become main selection.
With respect to sophisticated electroplating bright pure tin is technological day by day, actually rare about the technology and the document of half light plating pure tin.What be used for half bright pure tin technology at present is mainly the acid tin plating technique of sulfate-type plating bath; Promptly in the composition that with sulfuric acid and stannous sulfate is basic plating bath, add the mute zinc-plated additive of light, its principal feature plating bath current efficiency is high, and is easy and simple to handle; But coating is easy to long whisker; The internal stress of coating is restive, and bath stability is relatively poor, needs often to handle.The domestic half bright acid tin plating electrolyte that discloses a kind of based on sulfuric acid system is characterized in that each additive amount significantly reduces, and has reduced cost recently; But binder component is too much, and plating bath is wayward, and stability fails to improve.Being used for half bright pure tin technology also has methylsulphonic acid system and fluoroboric acid system zinc-plated etc. except that the acid tin plating technique of vitriol type plating bath.Fluoroborate tin plating electrolyte cost is higher than sulfate bath, also exists the shortcomings such as pollution of fluorochemical, is used hardly at present.The methylsulphonic acid system is high with its sedimentation rate, and waste water is advantage such as processings and being applied in the continuous electroplating production easily, but the dispersive ability of most of plating baths of current application is poor, the Bivalent Tin facile hydrolysis.The recently domestic half bright pure tin electroplate liquid that discloses a kind of based on the sulfonic acid system is characterized in and can under the weak acid scope, operates that the pH value is between 0.5 – 6.5; Bath stability and coating performance are good, but exist owing to service temperature and the low relatively low defective of plating speed that causes of current density.
Therefore, be necessary to strengthen the research of double bright pure tin electroplate liquid and technology thereof, develop a kind of electroplate liquid of stability and high efficiency, to satisfy the demand in practical application and market.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, provide the sulfonic acid type that a kind of dispersive ability is strong, stable, efficient, gained pure tin coating performance is excellent half bright pure tin electroplate liquid.
In order to realize the foregoing invention purpose, technical scheme of the present invention is following:
A kind of sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
It is main salt that sulfonic acid type of the present invention half bright pure tin electroplate liquid adopts the inferior tin of alkylsulphonic acid, under the synergy of components such as brightening agent, stablizer, alkylsulphonic acid, wetting agent, grain-refining agent, makes this tin bath solution have following beneficial effect:
1. do not contain fluoroborate and heavy metals such as lead, bismuth, cerium, also do not contain formaldehyde and inflammable substance, the discarded liquid processing cost after the plating is low, environmentally safe, safety, environmental protection;
2. each component good dispersivity in this sulfonic acid type half bright pure tin electroplate liquid; Coordinative role through each component; Effectively avoided the oxidation of the component such as hydrolysis and brightening agent of stannous ion; Guaranteed that this sulfonic acid type half bright pure tin electroplate liquid is limpid transparent, stability is high, has effectively overcome the deficiency that exists in the tin bath solution that existing acid tin plating technique adopted;
3. this sulfonic acid type half bright pure tin electroplate liquid consistency is good, highly versatile;
4. when this sulfonic acid type half bright pure tin electroplate liquid being electroplated; Sedimentation velocity is fast; Production efficiency is high, and in the current density range from the height district to low district broadness, all can obtain half consistent bright pure tin coating of outward appearance; And crystallization is careful in the tin electrolytic coating; The tin electrolytic coating is even, and it has excellent solidity to corrosion, resistance toner and weldability, electronics electroplating industry fields such as the rolling of the connector of particularly suitable electronic apparatus, terminal and IC and semi-conductor discrete device, the mute matte pure tin coating of rack plating.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the present invention will be solved, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The embodiment of the invention provides that a kind of dispersive ability is strong, stability and high efficiency, the excellent sulfonic acid type half bright pure tin electroplate liquid of gained pure tin coating performance.This sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
Like this; It is main salt that the foregoing description sulfonic acid type half bright pure tin electroplate liquid adopts the inferior tin of alkylsulphonic acid; Under the synergy of components such as brightening agent, stablizer, alkylsulphonic acid, wetting agent, grain-refining agent, each component good dispersivity in the sulfonic acid type half bright pure tin electroplate liquid is through the coordinative role of each component; Effectively avoided the oxidation of the component such as hydrolysis and brightening agent of stannous ion; Guaranteed that this sulfonic acid type half bright pure tin electroplate liquid is limpid transparent, stability is high, has effectively overcome the deficiency that exists in the tin bath solution that existing acid tin plating technique adopted.Simultaneously, this sulfonic acid type half bright pure tin electroplate liquid consistency is good, highly versatile.In addition, this sulfonic acid type half bright pure tin electroplate liquid does not contain fluoroborate and lead, does not contain formaldehyde and inflammable substance yet, and the discarded liquid processing cost after the plating is low, environmentally safe, safety, environmental protection.When making this sulfonic acid type half bright pure tin electroplate liquid mute the tin plating, sedimentation velocity is fast, and production efficiency is high, and distinguishes in the broad current density range like 10～100A/dm from the height district to low
2All can obtain half consistent bright pure tin coating of outward appearance; And crystallization is careful in the tin electrolytic coating; The tin electrolytic coating is even, and it has excellent solidity to corrosion, resistance toner and weldability, electronics electroplating industry fields such as the rolling of the connector of particularly suitable electronic apparatus, terminal and IC and semi-conductor discrete device, the mute matte pure tin coating of rack plating.
Particularly, among the embodiment of above-mentioned half bright pure tin plating solution formula, the alkylsulphonic acid component is that sulfonic acid type half bright pure tin electroplate liquid provides sour environment, plays solvent and electrolytical effect.The contriver finds that under study for action the stability and the electroconductibility of this alkylsulphonic acid component concentrations and kind p-sulfonic acid type half bright pure tin electroplate liquid have material impact.Therefore; When alkylsulphonic acid concentration was 60～150g/L, alkylsulphonic acid was preferably when one or both are composite in methylsulphonic acid, the ethylsulfonic acid, and this alkylsulphonic acid can make other components dissolve fully; The stability of the sulfonic acid type of being prepared half bright pure tin electroplate liquid is best, and electroconductibility is stronger.
The inferior tin of abovementioned alkyl sulfonic acid is preferably stannous methanesulfonate or/and the inferior tin of ethylsulfonic acid, and its content is preferably 180～230g/L.The inferior tin of this preferred alkylsulphonic acid can better ionization go out stannous ion, when electroplating, can also stablize the stable of stannous ion content in the sulfonic acid type half bright pure tin electroplate liquid, reduces the frequency of when electroplating the inferior tin component of alkylsulphonic acid being replenished.Further improve coating uniformity simultaneously, and make coating have good weldability and ductility.In addition, in electroplating process,, therefore, need suitably replenish the inferior tin component of this alkyl sulfonic acid, guarantee the stannous ion concentration in this sulfonic acid type half bright pure tin electroplate liquid based on situation because along with the carrying out of electroplating, the content of stannous ion can decrease.
Above-mentioned brightening agent is preferably a kind of β-Nai Fen ethoxylate, and like the LugalvanBNO-12 of BASF AG, its preferred content is 2～6g/L.As far as existing tin bath solution, brightening agent can make the tin coating light.This area brightener commonly used generally is made up of the organism of aldehyde, phenol and so on and the tensio-active agent of solubilising etc.But the contriver finds that under study for action such existing brightener content can reduce cathode efficiency too much, and the too much oxidation of brightener in plating bath simultaneously can be quickened the muddiness of tin plating electrolyte again.The preferred β-Nai Fen ethoxylate of contriver brightening agent; Particularly BNO-12 and preferred content can effectively overcome the deficiency that existing brightening agent exists; Guarantee that the foregoing description sulfonic acid type half bright pure tin electroplate liquid keeps very high cathode efficiency when electroplating; And prevent that high Current Zone from burning, increase covering power; Avoid the oxidation of himself simultaneously, guarantee the limpid transparent of this sulfonic acid type half bright pure tin electroplate liquid.And the inferior tin master of the brightening agent of this preferred content and kind and alkylsulphonic acid salt system acts synergistically, and can also obtain half bright pure tin coating of uniformity.
The aforementioned stable agent is preferably Resorcinol, and preferred content is 0.8 ~ 3g/L.Concerning tin bath solution; Stablizer can make each component be uniformly dispersed; Guarantee the stability of this electroplate liquid; Existing stablizer mainly is the mixture of complexing agent, oxidation inhibitor and reductive agent; Like Yi Yansuan, ferrous sulfate etc., but such existing stablizer can not well prevent the stannous stannous ion hydrolysis of alkylsulphonic acid in the foregoing description sulfonic acid type half bright pure tin electroplate liquid, and the stannous ion that can cause the inferior tin ionization of alkylsulphonic acid in the present embodiment to go out like this is milky turbidity because of hydrolysis causes electroplate liquid.Therefore, this preferred Resorcinol stablizer on the finely dispersed basis of each component, can also effectively prevent the stannous ion hydrolysis in guaranteeing the foregoing description sulfonic acid type half bright pure tin electroplate liquid, guarantee the limpid transparent of this electroplate liquid.In electroplating process particularly, stablizer can could keep the stability of acid bright tinning solution with the taking out of and need in time to replenish of plating bath.
Above-mentioned wetting agent is preferably polyoxyethylene nonylphenol NP series, and like non-ionics such as NP-10 to NP-20, wherein, wetting agent is preferably NP-12, and preferred content is 1.5 ~ 6.0g/L.This wetting agent plays the solvent and the effect of carrier of component such as brightening agent in this sulfonic acid type half bright pure tin electroplate liquid, thereby has guaranteed that electroplate liquid is stable and limpid transparent, has improved the cathode efficiency of electroplate liquid.
Above-mentioned grain-refining agent is preferably the coconut fatty alcohols Soxylat A 25-7, and like the GENAPOL C-050 that Clariant company produces, preferred content is 0.5 ~ 3.0g/L.This preferred coconut fatty alcohols Soxylat A 25-7; Particularly GENAPOL C-050 can improve the dispersive ability of this sulfonic acid type half bright each component of pure tin electroplate liquid; Make grain refining in the tin layer, the tin layer is even, thereby guarantees mute uniformly luminosity of pure tin coating and good performance.
Using embodiment of the invention sulfonic acid type half bright pure tin electroplate liquid preparation steps is: in the aqueous solution of alkylsulphonic acid, add brightening agent, wetting agent, grain-refining agent and stablizer successively to dissolving fully; Add the inferior tin of alkylsulphonic acid then, make each component mix.In addition, before plating bath is opened cylinder, preferred 10% methylsulphonic acid diafiltration coating bath, filtration pump, anode and the anode of adopting earlier, water flushing then thoroughly cleans up with deionized water again.
For the present invention is further elaborated, more preferred instances are following:
Embodiment 1
A kind of sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
This sulfonic acid type half bright pure tin electroplate liquid open cylinder:
1. with 10% methylsulphonic acid diafiltration coating bath, filtration pump, anode and anode, water flushing then thoroughly cleans up with deionized water again; Add deionized water to cell body long-pending 25%;
2. add required alkylsulphonic acid while stirring;
3. add brightening agent, wetting agent, grain-refining agent and stablizer successively to dissolving fully while stirring;
4. add stannous methanesulfonate while stirring;
5. add deionized water to final volume.
The above-mentioned sulfonic acid type half bright pure tin electroplate liquid of opening cylinder was electroplated on copper sheet 2 minutes according to the electroplating operations method, and the plating condition is current density 10A/dm
2, 40～45 ℃ of temperature.The result plates the pure tin coating that 10.5um is evenly mute light on copper sheet.
Embodiment 2
A kind of sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
The cylinder method of opening of this sulfonic acid type half bright pure tin electroplate liquid is with reference to embodiment 1.
The above-mentioned sulfonic acid type half bright pure tin electroplate liquid of opening cylinder was electroplated on copper sheet 1 minute according to the electroplating operations method, and the plating condition is current density 30A/dm
2, 40～45 ℃ of temperature.The result plates the pure tin coating that is evenly mute light of 15um on copper sheet.
Embodiment 3
A kind of sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
The cylinder method of opening of this sulfonic acid type half bright pure tin electroplate liquid is with reference to embodiment 1.
The above-mentioned sulfonic acid type half bright pure tin electroplate liquid of opening cylinder was electroplated on copper sheet 0.5 minute according to the electroplating operations method, and the plating condition is current density 50A/dm
2, 40～45 ℃ of temperature.The result plates the pure tin coating that is evenly mute light of 13.5um on copper sheet.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a sulfonic acid type half bright pure tin electroplate liquid comprises following recipe ingredient:
2. sulfonic acid type according to claim 1 half bright pure tin electroplate liquid is characterized in that: the inferior tin content of said alkylsulphonic acid is 180～230g/L.
3. sulfonic acid type according to claim 1 half bright pure tin electroplate liquid is characterized in that: said brightening agent 2～6g/L.
4. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: the inferior tin of said alkylsulphonic acid is that stannous methanesulfonate is or/and the inferior tin of ethylsulfonic acid.
5. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: said brightening agent is the β-Nai Fen ethoxylate.
6. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: said stablizer is a Resorcinol.
7. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: said wetting agent is a polyoxyethylene nonylphenol NP series.
8. sulfonic acid type according to claim 7 half bright pure tin electroplate liquid, it is characterized in that: said wetting agent is NP-12.
9. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: said grain-refining agent is the coconut fatty alcohols Soxylat A 25-7.
10. according to the arbitrary described sulfonic acid type of claim 1～3 half bright pure tin electroplate liquid, it is characterized in that: said alkylsulphonic acid is that methylsulphonic acid is or/and ethylsulfonic acid.
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| CN201210243504.7A CN102758228B (en) | 2012-07-13 | 2012-07-13 | A kind of sulfonic acid type semi-bright Pure Tin Plating Process liquid |
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| CN104060307A (en) * | 2014-06-30 | 2014-09-24 | 句容市博远电子有限公司 | Pure tin electroplating solution for inhibiting growth of tin whiskers and application thereof |
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| CN111197174A (en) * | 2018-11-16 | 2020-05-26 | 丰田自动车株式会社 | Tin solution for forming tin film and method for forming tin film using same |
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| CN104060307A (en) * | 2014-06-30 | 2014-09-24 | 句容市博远电子有限公司 | Pure tin electroplating solution for inhibiting growth of tin whiskers and application thereof |
| CN104562100B (en) * | 2014-12-31 | 2016-09-07 | 苏州禾川化学技术服务有限公司 | A kind of multi-functional half white bright tin plating additive |
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| CN105063680A (en) * | 2015-08-21 | 2015-11-18 | 无锡桥阳机械制造有限公司 | Sulfonic acid type semi-bright pure-tin electroplating liquid |
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| CN105755512B (en) * | 2016-03-04 | 2018-01-05 | 昆山艾森半导体材料有限公司 | A kind of tin methane sulfonate antioxidant and preparation method thereof and application method |
| CN105755512A (en) * | 2016-03-04 | 2016-07-13 | 昆山艾森半导体材料有限公司 | Antioxidant for tin methane-sulfonate, preparation method and use method thereof |
| CN105648483A (en) * | 2016-04-11 | 2016-06-08 | 济南德锡科技有限公司 | High-speed tinning solution and preparation method thereof |
| CN105648483B (en) * | 2016-04-11 | 2018-09-18 | 济南德锡科技有限公司 | A kind of high speed tin plating solution and preparation method thereof |
| CN108103540A (en) * | 2018-01-24 | 2018-06-01 | 永星化工(上海)有限公司 | Tin alloy electric plating liquid |
| CN108103540B (en) * | 2018-01-24 | 2020-01-07 | 永星化工(上海)有限公司 | Tin alloy electroplating solution |
| CN111197174A (en) * | 2018-11-16 | 2020-05-26 | 丰田自动车株式会社 | Tin solution for forming tin film and method for forming tin film using same |
| CN109338408A (en) * | 2018-12-04 | 2019-02-15 | 中华全国供销合作总社天津再生资源研究所 | A kind of electrolyte and a kind of electrorefining method of useless electronic solder |
| CN110306213B (en) * | 2019-07-08 | 2020-08-04 | 广州三孚新材料科技股份有限公司 | Tin plating solution for solar cells and preparation method thereof |
| CN115948776A (en) * | 2023-02-14 | 2023-04-11 | 艾森半导体材料(南通)有限公司 | High-speed bright electroplating additive and electroplating solution |
| CN115948776B (en) * | 2023-02-14 | 2025-02-07 | 艾森半导体材料(南通)有限公司 | High-speed bright electroplating additives and electroplating solutions |
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