CN103056191B - Novel preparation method for noble composite metallic bond composite wire materials - Google Patents
Novel preparation method for noble composite metallic bond composite wire materials Download PDFInfo
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- CN103056191B CN103056191B CN201210566153.3A CN201210566153A CN103056191B CN 103056191 B CN103056191 B CN 103056191B CN 201210566153 A CN201210566153 A CN 201210566153A CN 103056191 B CN103056191 B CN 103056191B
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Abstract
The invention discloses a preparation method for noble/noble composite wire materials, and noble/cheap composite wire materials, wherein the preparation method is simple to operate, and the composite wire materials are controllable in thickness of a composite layer, clean in limiting surface, good in limiting surface bonding and easy to process subsequently. The preparation process includes that an outer layer of metal is machined to a round pipe by ingot casting, extruding and drawing, and wall thickness is designed according to demand of product design. The noble metal round pipe is placed in a water-cooling mold, core material metal is placed in a vacuum induction melting furnace to be melted, core material molten metal is poured into the water-cooling mode to be fast set, the water-cooling mold is adjusted, and cooling speed of the core material molten metal is changed so as to produce a composite bar of clad materials and a core material binding layer (a transition layer). The composite bar is machined through rotary swaging, and is carried out with heat treatment and wire drawing in the middle process to meet product size requirements of customers. The composite wire materials are wrapped evenly by outer layer metal, and the wrapping layer and the core materials are good in cooperated transformation. The wrapping materials and the core materials are closely combined. The wrapping materials can be used for advanced packing of an integrated circuit and the like, and part of wrapping materials or all wrapping materials can replace the noble metallic bond composite wire materials.
Description
Technical field
The invention belongs to technical field of composite materials, in particular, provide a kind of semiconductor-sealing-purpose noble metal compound bonding wire method.Can be used for the preparation of expensive/your compound bonding wire, expensive/low-priced compound bonding wire, also can be applied to the preparation of other clad metal wire material.
Background technology
Along with integrated circuit and semiconductor device packaging technique are to multilead, high integration and miniaturization, encapsulating material requires to adopt that wire diameter is thinner, electrochemistry can better carry out the bonding of thin space, long distance by bonding wire.Meanwhile, in order to reduce production cost, wish by adopting base metal to replace noble metal.
Up to the present, by integral for two or more Material cladding, the method being applicable to large-scale production mainly contains Mechanical Method, plastic deformation method, metallurgy method.Mechanical Method is divided into the methods such as bushing, hydraulic extend pipe, drawing, and its feature to be each composite bed interface be mechanical bond, interface bond strength are low.Though plastic deformation method can realize metallurgical binding, non-scale be obtained, nothing is mingled with, completely clean compound interface is very difficult.Metallurgy method has reverse solidification method, clad continuous metal cast process, core-filled and continuously casted method, multilayer materials one-step casting forming process.These class methods are conducive to solidifying feeding and rolling processing, generally that outer sphere molten metal is attached to and core solidifies or core molten metal solidifies in outer layer metal tube, but all have some limitations, as all prepared the clad composite material of heavy wall, the core-filled and continuously casted outer layer metal fusing point that is suitable only for is higher than core fusing point composite etc.
Summary of the invention
The object of the invention is to exploitation a kind of simple to operate, highly versatile, coating thickness are controlled, metallurgical interface joint thickness is controlled, interface cleanness, interface cohesion good, be easy to following process expensive/your composite wire material, expensive/low-priced composite wire material preparation method.
Technical process of the present invention is:
(1) by high-purity outer layer metal through ingot casting, extrude, be drawn into pipe, the external diameter of pipe is identical with water cooled mo(u)ld internal diameter, and pipe wall thickness is by product design requirement;
(2) noble metal round tube inner wall is cleaned;
(3) noble metal pipe is placed in water cooled mo(u)ld;
(4) water cooled mo(u)ld is placed in vacuum drying oven, and logical cooling water, the former material of core is positioned in vacuum induction melting furnace, adjusts casting position;
(5) forvacuum applying argon gas clean repeatedly, and pumping high vacuum reaches 1 × 10
-2below Pa, then be filled with argon gas and reach 0.05Mpa, intensification melting;
(6) cast: core molten metal is poured in water cooled mo(u)ld, carries out rapid solidification, obtained composite bar;
(7) forging and stamping processing;
(8) intermediate heat-treatment;
(9) drawing: pole is pulled into silk thread by wire drawing machine;
(10) anneal;
(11) mechanical performance detects and analyzes.
(12) coiling: silk thread is divided the little axle being coiled into different length.
Described high-purity outer layer metal is Au, Ag, Pt or Pd, and core metal is Ag, Cu or Al.
Described high-purity outer layer metal purity >=99.999%, core metal purity >=99.95%.
Described noble metal pipe length and water cooled mo(u)ld deep equality, round tube inner wall acetone or gasoline wiping.
The water inlet pipe of described water cooled mo(u)ld and outlet pipe respectively have a control valve, for regulating water inlet, water yield size, discharge at 1-20L/min, hydraulic pressure 0.1-2MPa, water temperature≤20 DEG C.
Described forging and stamping are processing of swaging, and every time deformation amount controlling is at 10%-20%.
By regulating water cooled mo(u)ld internal diameter size, water cooled mo(u)ld water yield size, noble metal pipe thickness, change the cooling velocity of core molten metal, thus obtained clad material and core binder course (transition zone) thickness controlled, coating thickness is even, interface cohesion is good, composite bar.Through processing of swaging after composite bar, intermediate heat-treatment, wire drawing, heat treatment, obtains customer demand product size.
Advantage of the present invention:
(1) by regulating water cooled mo(u)ld internal diameter size, water cooled mo(u)ld water yield size, noble metal pipe thickness, change the cooling velocity of core molten metal, thus obtained clad material and core binder course (transition zone) thickness controlled, be conducive to following process.
(2) to clad material and the no requirement (NR) of core fusing point.The coated low melting material of materials with high melting point can be prepared, also can prepare the coated materials with high melting point of low melting point.
(3) to the no requirement (NR) of noble metal pipe thickness, the composite of different coating thickness can be prepared as required.
(4) interface cleanness.Because core from bottom to top solidifies, interface impurity can float smoothly.
(5) in the roughing stage, adopt processing of swaging, clad and core homogeneous deformation can be ensured, coating thickness uniformity.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is elaborated.
Embodiment one:
The preparation of Ag/Cu composite wire material
Preparation method:
(1) select purity be greater than the Ag of 99.999% through ingot casting, extrude, be drawn into pipe, the external diameter of pipe is 20mm, wall thickness 2mm, and length is 100mm.
(2) wiping of Ag inside pipe wall acetone is cleaned.
(3) Ag pipe is placed in the water cooled mo(u)ld that internal diameter is 20mm.
(4) water cooled mo(u)ld is placed in vacuum drying oven, and logical cooling water, inflow is 10L/min, hydraulic pressure 0.5MPa, water temperature≤20 DEG C.The Cu of purity >=99.95% is positioned in vacuum induction melting furnace, adjusts casting position.
(5) forvacuum applying argon gas cleans 2 times repeatedly, pumping high vacuum to 6 × 10
-3pa, then be filled with argon gas and reach 0.05Mpa, intensification melting.
(6) cast: pour in water cooled mo(u)ld by core molten metal, carry out rapid solidification, obtained Ag wraps Cu composite bar.
(7) to swage processing: from Φ 20mm-Φ 6mm, every time deformation amount controlling is at 10%-15%.
(8) intermediate heat-treatment: the vacuum annealing of Φ 6mm composite bar, 600 DEG C, 1h.
(9) drawing: silk thread Ag/Cu compound bar being pulled into different-diameter by wire drawing machine.
(10) anneal: according to the different requirements of client, set different annealing parameters, eliminate stress, and be met the mechanical performance of requirement
(11) mechanical performance detects and analyzes: check whether product meets the requirements.
(12) coiling: require Ag to wrap the little axle that Cu composite wire material is coiled into different length according to the difference of client.
(13) final inspection: the detections such as surface, wire diameter, unwrapping wire, stress, mechanical performance, length, coated situation.
(14) pack
Embodiment two
The preparation of Au/Ag composite wire material
Preparation method:
(1) select purity be greater than the Au of 99.999% through ingot casting, extrude, be drawn into pipe, the external diameter of pipe is 18mm, wall thickness 1.5mm, and length is 100mm.
(2) wiping of Au inside pipe wall acetone is cleaned.
(3) Au pipe is placed in the water cooled mo(u)ld that internal diameter is 18mm.
(4) water cooled mo(u)ld is placed in vacuum drying oven, and logical cooling water, inflow is 15L/min, hydraulic pressure 0.5MPa, water temperature≤20 DEG C.The Ag of purity >=99.99% is positioned in vacuum induction melting furnace, adjusts casting position.
(5) forvacuum applying argon gas cleans 2 times repeatedly, pumping high vacuum to 6 × 10
-3pa, then be filled with argon gas and reach 0.05Mpa, intensification melting.
(6) cast: pour in water cooled mo(u)ld by core molten metal, carry out rapid solidification, obtained Au wraps Ag composite bar.
(7) to swage processing: from Φ 18mm-Φ 5mm, every time deformation amount controlling is at 15%-20%.
(8) intermediate heat-treatment: the vacuum annealing of Φ 5mm composite bar, 600 DEG C, 1h.
(9) drawing: silk thread Au/Ag compound bar being pulled into different-diameter by wire drawing machine.
(10) anneal: according to the different requirements of client, set different annealing parameters, eliminate stress, and be met the mechanical performance of requirement
(11) mechanical performance detects and analyzes: check whether product meets the requirements.
(12) coiling: require Au to wrap the little axle that Ag composite wire material is coiled into different length according to the difference of client.
(13) final inspection: the detections such as surface, wire diameter, unwrapping wire, stress, mechanical performance, length, coated situation.
(14) pack
Embodiment three
The preparation of Pd/Cu composite wire material
Preparation method:
(1) select purity be greater than the Pd of 99.999% through ingot casting, extrude, be drawn into pipe, the external diameter of pipe is 15mm, wall thickness 1.5mm, and length is 100mm.
(2) the gasoline wiping of Pd inside pipe wall is cleaned.
(3) Pd pipe is placed in the water cooled mo(u)ld that internal diameter is 15mm.
(4) water cooled mo(u)ld is placed in vacuum drying oven, and logical cooling water, inflow is 8L/min, hydraulic pressure 0.4MPa, water temperature≤20 DEG C.The Cu of purity >=99.99% is positioned in vacuum induction melting furnace, adjusts casting position.
(5) forvacuum applying argon gas cleans 2 times repeatedly, pumping high vacuum to 6 × 10
-3pa, then be filled with argon gas and reach 0.05Mpa, intensification melting.
(6) cast: pour in water cooled mo(u)ld by core molten metal, carry out rapid solidification, obtained Pd wraps Cu composite bar.
(7) to swage processing: from Φ 15mm-Φ 7mm, every time deformation amount controlling is about 10%.
(8) intermediate heat-treatment: the vacuum annealing of Φ 7mm composite bar, 750 DEG C, 1.5h.
(9) drawing: silk thread Pd/Cu compound bar being pulled into different-diameter by wire drawing machine.
(10) anneal: according to the different requirements of client, set different annealing parameters, eliminate stress, and be met the mechanical performance of requirement
(11) mechanical performance detects and analyzes: check whether product meets the requirements.
(12) coiling: require Pd to wrap the little axle that Cu composite wire material is coiled into different length according to the difference of client.
(13) final inspection: the detections such as surface, wire diameter, unwrapping wire, stress, mechanical performance, length, coated situation.
(14) pack.
Claims (1)
1. produce a noble metal compound keys plying material, preparation method, it is characterized in that comprising the following steps:
(1) by high-purity outer layer metal through ingot casting, extrude, be drawn into pipe, the external diameter of pipe is identical with water cooled mo(u)ld internal diameter, and pipe wall thickness is by product design requirement;
(2) noble metal round tube inner wall is cleaned;
(3) noble metal pipe is placed in water cooled mo(u)ld;
(4) water cooled mo(u)ld is placed in vacuum drying oven, and logical cooling water, the former material of core is positioned in vacuum induction melting furnace, adjusts casting position;
(5) forvacuum applying argon gas clean repeatedly, and pumping high vacuum reaches 1 × 10
-2below Pa, then be filled with argon gas and reach 0.05MPa, intensification melting;
(6) cast: core molten metal is poured in water cooled mo(u)ld, carries out rapid solidification, obtained composite bar;
(7) forging and stamping processing;
(8) intermediate heat-treatment;
(9) drawing: pole is pulled into silk thread by wire drawing machine;
(10) anneal;
(11) mechanical performance detects and analyzes;
(12) coiling: silk thread is divided the little axle being coiled into different length,
Described high-purity outer layer metal is Au, Ag, Pt or Pd, and core metal is Ag, Cu or Al,
Described high-purity outer layer metal purity >=99.999%, core metal purity >=99.95%,
Described noble metal pipe length and water cooled mo(u)ld deep equality, round tube inner wall acetone or gasoline wiping,
The water inlet pipe of described water cooled mo(u)ld and outlet pipe respectively have a control valve, for regulating water inlet, water yield size, discharge at 1-20L/min, hydraulic pressure 0.1-2MPa, water temperature≤20 DEG C,
Described forging and stamping are processing of swaging, and every time deformation amount controlling is at 10%-20%.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104308124A (en) * | 2014-10-14 | 2015-01-28 | 昆明贵金属研究所 | High-strength gold clad copper composite wire and preparation method thereof |
| CN105869703B (en) * | 2016-05-30 | 2018-01-23 | 秦斌 | A kind of noble metal recombination line and preparation method thereof |
| CN107634045A (en) * | 2017-07-31 | 2018-01-26 | 贵研铂业股份有限公司 | A kind of compound bonding wire of golden contracted payment and preparation method thereof |
| CN114086021A (en) * | 2021-11-22 | 2022-02-25 | 烟台一诺电子材料有限公司 | Rapid directional casting method for bonding wire |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10063383C1 (en) * | 2000-12-19 | 2002-03-14 | Heraeus Gmbh W C | Production of a tubular target used for cathode sputtering devices comprises forming an outer tube by casting a molten material in a mold, in which the mold has a heated core rod formed from an inner tube |
| CN101549392A (en) * | 2009-04-24 | 2009-10-07 | 中国铝业股份有限公司 | An electromagnetic continuous casting method and device of complex ingot blank |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20030099854A1 (en) * | 2001-11-26 | 2003-05-29 | David Smith | Method for producing a clad metal product |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10063383C1 (en) * | 2000-12-19 | 2002-03-14 | Heraeus Gmbh W C | Production of a tubular target used for cathode sputtering devices comprises forming an outer tube by casting a molten material in a mold, in which the mold has a heated core rod formed from an inner tube |
| CN101549392A (en) * | 2009-04-24 | 2009-10-07 | 中国铝业股份有限公司 | An electromagnetic continuous casting method and device of complex ingot blank |
Non-Patent Citations (3)
| Title |
|---|
| 充芯连铸铜包铝复合材料制备技术的试验研究;薛志勇等;《复合材料》;20080531;第28卷(第5期);第383-384页 * |
| 双金属层状复合材料连铸工艺的研究进展;于治民等;《铸造技术》;20040531;第25卷(第5期);第399-401页 * |
| 铜包铝复合金属线材的制备工艺;谢世坤等;《煤矿机械》;20071231;第28卷(第12期);第118-120页 * |
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