CN107644717A - A kind of preparation method and application of anti-oxidant bonding brass wire - Google Patents

A kind of preparation method and application of anti-oxidant bonding brass wire Download PDF

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CN107644717A
CN107644717A CN201710840045.3A CN201710840045A CN107644717A CN 107644717 A CN107644717 A CN 107644717A CN 201710840045 A CN201710840045 A CN 201710840045A CN 107644717 A CN107644717 A CN 107644717A
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copper
liquid
brass wire
bonding brass
mixing
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CN107644717B (en
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邵光伟
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Yingtan Zhongxincheng Copper Co ltd
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Foshan Huichuang Zhengyuan New Mstar Technology Ltd
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Abstract

The invention discloses a kind of preparation method and application of anti-oxidant bonding brass wire; the preparation method of the anti-oxidant bonding brass wire obtains copper liquid after first cathode copper is melted; then molybdenum, bismuth, boron nitride, phenolic resin are added in copper liquid under the protection of inert gas, then mixing copper liquid is obtained through magnetic agitation.Then mixing copper liquid is obtained through crystallisation by cooling to be bonded copper ingot, drawing obtains the bonding brass wire that diameter meets to require repeatedly after calendering, and anticorrosive liquid finally is added dropwise on copper wire surface under inert gas shielding, finished product is obtained after drying.The anti-oxidant bonding brass wire being prepared using this method has good antioxygenic property, mechanical strength and decay resistance, and cost is relatively low, disclosure satisfy that the requirement of industry, has a good application prospect.Meanwhile the application the invention also discloses the copper wire obtained by this method in integrated circuits.

Description

A kind of preparation method and application of anti-oxidant bonding brass wire
Technical field
The present invention relates to metal material processing technical field, the preparation method of more particularly to a kind of anti-oxidant bonding brass wire and Using.
Background technology
New research and development material of the bonding brass wire as microelectronics industry, with its excellent mechanical property, electric property and low Cost factor, bonding gold wire has successfully been substituted applied in road encapsulation after IC with IC package bonding technology technology and equipment Improvement, copper wire apply from low-end product such as DIP, SOP to middle and high end QFP, QFN, multilayer wire, small pitch pad product scope expand Exhibition.Because the performance requirement of encapsulation procedure para-linkage copper wire steps up, copper wire manufacturer is promoted to copper wire processing performance to becoming The development of spun gold processing performance is bordering on, turns into the new material for substituting spun gold encapsulation.But due to itself in the application of current copper cash Easily oxidation, bonding technology is immature etc., and reason, the application in lsi package are restricted, pass through micro- conjunction It is more effective method that aurification, which improves bonding brass wire performance,.
Molybdenum is silvery white non-ferrous metal, and molybdenum atom radius is 0.14nm, atomic volume 235.5px/mol, and ligancy 8 is brilliant Body is Az type body-centered cubic crystallographic systems, and space group is Oh (lm3m).Alloy addition of the molybdenum as iron, helps to form complete pearly-lustre The matrix of body, the intensity and toughness of cast iron can be improved, improve the uniformity of heavy castings tissue, heat treating castings can also be improved Hardenability.The tool of grey cast-iron containing molybdenum has good wearability, and can make brake wheel and brake block of heavy vehicle etc..Molybdenum is mainly used in Steel and iron industry, major part therein are to be smelted into molybdenum-iron to be directly used in steel-making or cast iron, small part after industrial molybdenum oxide briquetting It is used further to make steel after molybdenum foil molybdenum foil.Molybdenum content in low-alloy steel is not more than 1%, but the consumption of this respect accounts for molybdenum and always disappeared 50% or so of the amount of expense.Molybdenum is added in stainless steel, the corrosion resistance of steel can be improved.Molybdenum is added in cast iron, the strong of iron can be improved Degree and anti-wear performance.Nickel based super alloy containing molybdenum 18% has fusing point height, density low and the characteristics such as coefficient of thermal expansion is small, for manufacturing The various high temperature resistant components of aerospace.Metal molybdenum obtains extensively in terms of the electronic devices such as electron tube, transistor and rectifier General application.
Bismuth is metal of the silvery white to pink, and matter is crisp easily to be crushed, and the chemical property of bismuth is relatively stable.Bismuth in nature with The form of free metal and mineral is present.Mineral have bismuthine, bismite etc..Bismuth metal aoxidizes two after calcining by mineral into three Bismuth, then heat-treat and obtain altogether with carbon, it can use pyro-refining and electrorefining that high purity bismuth is made.Pure bismuth is soft metal, no Property is crisp when pure.It is stable under normal temperature.Main ore is bismuthine (Bi2S3) and reddish brown bismuth stone (Bi2O5).Liquid bismuth has expansion when solidifying Phenomenon.The conduction and thermal conductivity of bismuth are all poor.The selenides and tellurides of bismuth have semiconductor property.Bismuth is mainly for the manufacture of easy Fusion gold, the alloy of 47~262 DEG C of melting range, the most commonly metal such as the same lead of bismuth, tin, antimony, indium composition, is filled for fire-fighting Put, the flame-arrester vent plug of automatic water sprayer, boiler.Add people's trace bismuth in steel, the processing characteristics of steel can be improved, malleable cast iron adds micro Bismuth, malleable cast iron can be made to possess the performance of similar stainless steel.
Boron nitride is the crystal being made up of nitrogen-atoms and boron atom.The boron and 56.4% that chemical composition is 43.6% Nitrogen, there are four kinds of different variants:Hexagonal boron nitride (HBN), water chestnut side's boron nitride (RBN), cubic boron nitride (CBN) and buergerite Boron nitride (WBN).Boron nitride has chemical resistance of concrete property, not by inorganic acid and water erosion.Boron nitrogen key is broken in hot concentrated alkali Open.More than 1200 DEG C start to aoxidize in atmosphere.Fusing point starts to distil when being 3000 DEG C, slightly less than 3000 DEG C.The side of boron nitride six Crystallographic system crystallizes, most commonly graphite lattice, also has amorphous variant, in addition to hexagonal structure, boron carbide also has other crystal formations. Its application mainly has:(1) lubricant of the releasing agent of metal forming and metal wire-drawing;(2) the special electrolysis of the condition of high temperature, resistance Material;(3) high temperature solid lubricant, antiwear additive is extruded, produces the additive of ceramic composite, refractory material and antioxygen Change the occasion of additive, especially resist melt metal erosion, heat enhancing additive, resistant to elevated temperatures insulating materials;(4) heat of transistor Seal the additive of the polymer such as drier and plastic resin;(5) be pressed into variously-shaped boron nitride product, can be used as high temperature, High pressure, insulation, thermal component.
Phenolic resin is also bakelite, also known as phenolic moulding powder.There is particle, powdered.Weak acid resistant and weak base, meet strong acid and occur to divide Solution, meet highly basic and corrode.It is not soluble in water, it is dissolved in the organic solvents such as acetone, alcohol.It is high that phenolic resin is often applied to some Warm field, such as refractory material, friction material, binding agent and casting industry.One important application of phenolic resin is exactly conduct Binding agent.Phenolic resin be it is a kind of multi-functional, with various organic and inorganic filler can be compatible material.Design is correct Phenolic resin, wetting speed is especially fast.And can be grinding tool, refractory material, friction material and phenolic moulding powder after cross-linking Mechanical strength required for providing, heat resistance and electrical property.
Based on bonding brass wire performance this research direction is improved by microalloying at present, a kind of new bonded copper is developed Silk is to strengthen its inoxidizability, so as to promote the large-scale application of bonding brass wire to be in integrated circuits just particularly important.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of preparation method of anti-oxidant bonding brass wire, the anti-oxidant key The preparation method of conjunction copper wire obtains copper liquid after first cathode copper is melted, then by molybdenum, bismuth, nitridation under the protection of inert gas Boron, phenolic resin are added in copper liquid, then obtain mixing copper liquid through magnetic agitation.Then mixing copper liquid is obtained through crystallisation by cooling Be bonded copper ingot, after calendering repeatedly drawing obtain diameter meet require bonding brass wire, finally under inert gas shielding Anticorrosive liquid is added dropwise in copper wire surface, and finished product is obtained after drying.The anti-oxidant bonding brass wire being prepared using this method has good Good antioxygenic property, mechanical strength and decay resistance, and cost is relatively low, disclosure satisfy that the requirement of industry, has good Application prospect.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of preparation method of anti-oxidant bonding brass wire, comprises the following steps:
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050~1080 DEG C, is incubated to cathode copper after being completely melt and obtains To copper liquid, then to being passed through inert gas in copper liquid, while add the molybdenum for accounting for copper liquid quality 6wt%, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3150~3180 DEG C are risen to after the completion of addition by furnace temperature immediately, are being continued Magnetic agitation is carried out in the case of being passed through inert gas, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire is passed through in inert gas according to 2.5~3.5m/s speed, while with 3ml/min's Anticorrosive liquid is uniformly added dropwise to copper wire for speed, and finished product is obtained after drying.
Preferably, in the step (1) and step (4), inert gas is used as nitrogen, and the flow of gas is 175L/h.
Preferably, in the step (1), the speed of magnetic agitation is 350r/min, mixing time 45min.
Preferably, in the step (4), anticorrosive liquid be polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, indium sulfate with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%.
Preferably, in the step (4), drying process is specifically in 70 DEG C of dry 12h in vacuum drying chamber.
It is a further object to provide the application of the copper wire obtained by this preparation method in integrated circuits.
Compared with prior art, its advantage is the present invention:
(1) molybdenum, bismuth, boron nitride, phenolic resin are added in copper liquid so as to which bonding brass wire be prepared by the present invention, pass through Caused synergy between molybdenum, bismuth, boron nitride, phenolic resin and copper, the inoxidizability of copper wire itself can be greatly improved Can, while also improve the mechanical strength of copper wire.
(2) present invention using polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, indium sulfate as raw material carry out proportioning be prepared into it is anti- Corrosive liquid, through applying behind bonding brass wire surface, anticorrosion ability can be persistently played, substantially increases copper wire product Service life.
(3) technique used in the preparation method of anti-oxidant bonding brass wire of the invention is simple, is used suitable for heavy industrialization, It is practical.
Embodiment
The technical scheme of invention is described in detail with reference to specific embodiment.
Embodiment 1
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3150 DEG C are risen to after the completion of addition by furnace temperature immediately, Carrying out magnetic agitation in the case where being continually fed into nitrogen, the speed of magnetic agitation is 350r/min, mixing time 45min, Copper liquid must be mixed;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 2.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Embodiment 2
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3180 DEG C are risen to after the completion of addition by furnace temperature immediately, Carrying out magnetic agitation in the case where being continually fed into nitrogen, the speed of magnetic agitation is 350r/min, mixing time 45min, Copper liquid must be mixed;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h..
Comparative example 1
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3150 DEG C are risen to after the completion of addition by furnace temperature immediately, are being continually fed into nitrogen Magnetic agitation is carried out in the case of gas, the speed of magnetic agitation is 350r/min, mixing time 45min, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 2.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 2
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3150 DEG C are risen to after the completion of addition by furnace temperature immediately, are being continually fed into nitrogen Magnetic agitation is carried out in the case of gas, the speed of magnetic agitation is 350r/min, mixing time 45min, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 3
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 0.5wt% phenolic resin, 3180 DEG C are risen to after the completion of addition by furnace temperature immediately, are being continually fed into nitrogen In the case of carry out magnetic agitation, the speed of magnetic agitation is 350r/min, mixing time 45min, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 4
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 3180 DEG C are risen to after the completion of addition by furnace temperature immediately, are being continually fed into the feelings of nitrogen Magnetic agitation is carried out under condition, the speed of magnetic agitation is 350r/min, mixing time 45min, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 5
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3150 DEG C are risen to after the completion of addition by furnace temperature immediately, Carrying out magnetic agitation in the case where being continually fed into nitrogen, the speed of magnetic agitation is 350r/min, mixing time 45min, Copper liquid must be mixed;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 2.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polyacrylate, citric acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 6
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3180 DEG C are risen to after the completion of addition by furnace temperature immediately, Carrying out magnetic agitation in the case where being continually fed into nitrogen, the speed of magnetic agitation is 350r/min, mixing time 45min, Copper liquid must be mixed;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with Anticorrosive liquid is uniformly added dropwise to copper wire for 3ml/min speed, and anticorrosive liquid is polytetrafluoroethylene (PTFE), tannic acid, sodium potassium tartrate tetrahydrate, sulphur Sour indium is with 7:4:3:1 weight is than the manufactured aqueous solution after mixing, concentration 0.5%, in 70 DEG C of dryings in vacuum drying chamber Finished product is obtained after 12h.
Comparative example 7
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to nitrogen is passed through in copper liquid, the flow of gas is 175L/h, at the same add account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% boron nitride, 0.5wt% phenolic resin, 3180 DEG C are risen to after the completion of addition by furnace temperature immediately, Carrying out magnetic agitation in the case where being continually fed into nitrogen, the speed of magnetic agitation is 350r/min, mixing time 45min, Copper liquid must be mixed;
(2) mixing copper liquid is released by melting outlet of still, flows into crystallization groove by guiding gutter, then entered using cooling water Row cooling, makes mixing copper liquid crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, work as bonded copper When silk diameter is less than 0.05mm, stop drawing;
(4) gained bonding brass wire being passed through in nitrogen according to 3.5m/s speed, the flow of gas is 175L/h, while with 3ml/min speed is uniformly added dropwise anticorrosive liquid to copper wire, anticorrosive liquid be polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate with 7:4:3 weight concentration 0.5%, obtains than the manufactured aqueous solution after mixing in vacuum drying chamber after 70 DEG C of dry 12h Finished product.
It will be aoxidized respectively by anti-oxidant bonding brass wire made from embodiment 1-2 and comparative example 1-7 preparation method Thickness degree (being tested after placing 120h in the environment of 25 DEG C of temperature, humidity 70%), tensile property, hydrochloric acid, polysulfide test This several performance tests, the test result of gained are shown in Table 1, it is seen that each raw material used in the present invention has not to copper wire overall performance The influence that can or lack.
Table 1
The preparation method of anti-oxidant bonding brass wire involved in the present invention obtains copper liquid after first cathode copper is melted, and then exists Molybdenum, bismuth, boron nitride, phenolic resin are added in copper liquid under the protection of inert gas, then mixed copper is obtained through magnetic agitation Liquid.Then mixing copper liquid is obtained through crystallisation by cooling to be bonded copper ingot, drawing obtains what diameter satisfaction required repeatedly after calendering Bonding brass wire, anticorrosive liquid finally is added dropwise on copper wire surface under inert gas shielding, finished product is obtained after drying.Utilize this method The anti-oxidant bonding brass wire being prepared has good antioxygenic property, mechanical strength and a decay resistance, and cost compared with It is low, the requirement of industry is disclosure satisfy that, is had a good application prospect.
Embodiments of the invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow conversion that bright description is made, or directly or indirectly it is used in other related technology necks Domain, it is included within the scope of the present invention.

Claims (6)

1. a kind of preparation method of anti-oxidant bonding brass wire, it is characterised in that comprise the following steps:
(1) cathode copper is placed in smelting furnace, furnace temperature rises to 1050~1080 DEG C, is incubated to cathode copper after being completely melt and obtains copper Liquid, then to being passed through inert gas in copper liquid, while add and account for copper liquid quality 6wt% molybdenum, 3.5wt% bismuth, 1.8wt% The phenolic resin of boron nitride, 0.5wt%, furnace temperature is risen to 3150~3180 DEG C immediately after the completion of addition, be continually fed into inertia Magnetic agitation is carried out in the case of gas, obtains mixing copper liquid;
(2) mixing copper liquid is released by melting outlet of still, crystallization groove is flowed into by guiding gutter, then carried out using cooling water cold But, mixing copper liquid is made to crystallize into bonding copper ingot;
(3) bonding copper ingot is subjected to drawing repeatedly after calendering, gained bonding brass wire diameter is progressively reduced, when bonding brass wire is straight When footpath is less than 0.05mm, stop drawing;
(4) gained bonding brass wire is passed through in inert gas according to 2.5~3.5m/s speed, while with 3ml/min speed Anticorrosive liquid is uniformly added dropwise to copper wire, finished product is obtained after drying.
2. the preparation method of anti-oxidant bonding brass wire according to claim 1, it is characterised in that:The step (1) and step Suddenly in (4), inert gas is used as nitrogen, and the flow of gas is 175L/h.
3. the preparation method of anti-oxidant bonding brass wire according to claim 1, it is characterised in that:In the step (1), magnetic The speed of power stirring is 350r/min, mixing time 45min.
4. the preparation method of anti-oxidant bonding brass wire according to claim 1, it is characterised in that:In the step (4), resist Corrosive liquid is polyacrylate, tannic acid, sodium potassium tartrate tetrahydrate, indium sulfate with 7:4:3:1 weight is manufactured more water-soluble than after mixing Liquid, concentration 0.5%.
5. the preparation method of anti-oxidant bonding brass wire according to claim 1, it is characterised in that:In the step (4), do Dry operation is specifically in 70 DEG C of dry 12h in vacuum drying chamber.
6. the application of the copper wire obtained by preparation method in integrated circuits described in any one of Claims 1 to 5.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182830A (en) * 2018-09-21 2019-01-11 广东华科新材料研究院有限公司 A kind of preparation method of oxidation-resistant alloy copper wire

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1949493A (en) * 2006-11-03 2007-04-18 宁波康强电子股份有限公司 Bonded copper wire and preparing method thereof
US20100213613A1 (en) * 2005-06-22 2010-08-26 Infineon Technologies Ag Arrangement for electrically connecting semiconductor circuit arrangements to an external contact device and method for producing the same
CN104818404A (en) * 2015-04-22 2015-08-05 苏州劲元油压机械有限公司 Corrosion-resistant copper wire for oil filter screen and manufacturing process thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100213613A1 (en) * 2005-06-22 2010-08-26 Infineon Technologies Ag Arrangement for electrically connecting semiconductor circuit arrangements to an external contact device and method for producing the same
CN1949493A (en) * 2006-11-03 2007-04-18 宁波康强电子股份有限公司 Bonded copper wire and preparing method thereof
CN104818404A (en) * 2015-04-22 2015-08-05 苏州劲元油压机械有限公司 Corrosion-resistant copper wire for oil filter screen and manufacturing process thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109182830A (en) * 2018-09-21 2019-01-11 广东华科新材料研究院有限公司 A kind of preparation method of oxidation-resistant alloy copper wire
CN109182830B (en) * 2018-09-21 2020-08-21 广东华科新材料研究院有限公司 Preparation method of antioxidant alloy copper wire

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