Precious metal composite wire and preparation method thereof

A technology of precious metal and composite wire, which is applied in the direction of metal/alloy conductor, cable/conductor manufacturing, semiconductor/solid device manufacturing, etc., and can solve the problems of high production cost and large amount of precious metal usage

Inactive Publication Date: 2016-08-17
秦斌 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of large amount of precious metal used and high production cost in the existing precious metal composite wire, the main purpose of the present inventi

Method used

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  • Precious metal composite wire and preparation method thereof

Examples

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Comparison scheme
Effect test

example 1

[0059] In this example, the composite production method of the nickel alloy layer on the outer layer and the precious metal wire core on the inner layer is used to reduce the amount of precious metal used, and then the wire is drawn into a wire through a reasonable combination. Its specific production process is as follows:

[0060] 1. Preparation of hollow tube blank

[0061]In this example, a high-temperature-resistant and corrosion-resistant alloy is selected as the outer layer material. Since nickel has a melting point of 1445°C, nickel with a melting point of 1445°C is used as the main component, and a nickel alloy composed of chromium and iron is added in a certain proportion. The outer layer material is used to form the nickel alloy layer.

[0062] The nickel alloy is specifically a material without obvious magnetism, wherein the proportioning of each component is as follows (by weight):

[0063] Nickel 90 parts;

[0064] Chromium 10 parts;

[0065] 10 servings of i...

example 2

[0077] In this example, the composite production method of the nickel alloy layer on the outer layer and the precious metal wire core on the inner layer is used to reduce the amount of precious metal used, and then the wire is drawn into a wire through a reasonable combination. Its specific production process is as follows:

[0078] 1. Preparation of hollow tube blank

[0079] In this example, a high-temperature-resistant and corrosion-resistant alloy is selected as the outer layer material. Since nickel has a melting point of 1445°C, nickel with a melting point of 1445°C is used as the main component, and a nickel alloy composed of chromium and iron is added in a certain proportion. The outer layer material is used to form the nickel alloy layer.

[0080] The nickel alloy is specifically a material without obvious magnetism, wherein the proportioning of each component is as follows (by weight):

[0081] Nickel 50 parts;

[0082] Chromium 20 parts;

[0083] Iron 30 parts. ...

example 3

[0095] In this example, the composite production method of the nickel alloy layer on the outer layer and the precious metal wire core on the inner layer is used to reduce the amount of precious metal used, and then the wire is drawn into a wire through a reasonable combination. Its specific production process is as follows:

[0096] 1. Preparation of hollow tube blank

[0097] In this example, a high-temperature-resistant and corrosion-resistant alloy is selected as the outer layer material. Since nickel has a melting point of 1445°C, nickel with a melting point of 1445°C is used as the main component, and a nickel alloy composed of chromium and iron is added in a certain proportion. The outer layer material is used to form the nickel alloy layer.

[0098] The nickel alloy is specifically a material without obvious magnetism, wherein the proportioning of each component is as follows (by weight):

[0099] Nickel 30 parts;

[0100] Chromium 25 parts;

[0101] 45 servings of ...

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Abstract

The invention discloses a precious metal composite wire and a preparation method thereof. The composite wire comprises an inner-layer wire core and an outer coating layer coating the wire core. The outer coating layer is a nickel alloy layer. The inner-layer wire core is a precious metal wire core. The outer coating layer and the inner-layer wire core are combined to form the precious metal composite wire. When the precious metal composite wire is prepared, a nickel alloy material is prepared into a hollow bloom, a precious metal material is prepared into the wire core, finally, the wire core is embedded into the hollow bloom, and the precious metal composite wire is formed through drawing. According to the precious metal composite wire, the using amount of precious metal is effectively reduced, the production cost is greatly reduced, the performance and the service life of the precious metal composite wire coincide with those of precious metal for independent use, and the using requirement and technological requirement for a detecting electrode can be well met.

Description

technical field [0001] The invention relates to a metal material, in particular to a precious metal composite wire. Background technique [0002] All countries in the world attach great importance to the research of composite wire, and great progress has been made in the development and application of both alternative materials and preparation technology. [0003] With the development of integrated circuit and semiconductor device packaging technology towards multi-lead, high integration and miniaturization, packaging materials require the use of bonding wires with thinner wire diameters and better electrochemical performance for narrow-pitch and long-distance bonding. . At the same time, in order to reduce production costs, how to effectively reduce the amount of precious metals and save resources is a problem to be solved in this field. [0004] For example, for some electrode materials that need to be used in a high temperature and high pressure environment for a long t...

Claims

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Application Information

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IPC IPC(8): H01B1/02H01B13/00H01L23/49H01L21/48
CPCH01L24/43H01L24/45H01B1/02H01B13/00H01L2224/45178H01L2224/45173H01L2224/45171H01L2224/45169H01L2224/45155H01L2224/45164H01L2224/4516H01L2224/4321H01L2924/0134H01L2924/01077H01L2924/01026H01L2924/01024H01L2924/01045H01L2924/01046H01L2224/45565
Inventor 秦斌
Owner 秦斌
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