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Method for reducing circuit losses based on single crystal copper

A high-frequency circuit and single-crystal copper technology, which is applied in the field of reducing high-frequency circuit loss based on single-crystal copper, can solve the problems of high-frequency transmission loss, high price, and high conductivity, and achieve low energy loss and reduce The effect of mass and volume, good electrical conductivity

Inactive Publication Date: 2019-06-28
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to factors such as grain boundaries and defects, the former has higher conductivity and higher high-frequency transmission loss; the latter is more expensive

Method used

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  • Method for reducing circuit losses based on single crystal copper
  • Method for reducing circuit losses based on single crystal copper

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Embodiment 1

[0014] With the gradual popularization of smart phones, and due to the innovation of hardware technology, the configuration of smart phones is getting higher and higher, the CPU has developed from single-core to quad-core, and the frequency is getting higher and higher, and the software occupies more and more memory. Mobile phones are becoming thinner and thinner in pursuit of aesthetics, resulting in increasing heat generated by mobile phones. Therefore, it is very necessary to reduce the energy consumption of the mobile phone. At present, most of the integrated circuits in mobile phones use copper foil made of hot pressing or electroplating as the circuit layer of the integrated circuit. Using the conductive properties of single crystal copper superior to polycrystalline copper, single crystal copper can be used as a conductive layer in integrated circuit chips , thereby reducing the energy loss of the mobile phone.

Embodiment 2

[0016] High-frequency lines and cables place extremely high demands on the properties of conductive materials. It is better than that there are a large number of grain boundaries and defects in polycrystalline copper, which cause huge signal loss when transmitting high-frequency signals. Therefore, the current high-end high-frequency signal lines and cables mostly use silver and other precious metals as conductive materials. Taking advantage of the advantages of no grain boundaries, almost no defects, and high surface flatness in single crystal copper, single crystal copper can be used to make high-frequency signal lines and cables. Compared with high-frequency signal cables made of polycrystalline copper, single-crystal copper high-frequency cables have lower signal loss; compared with high-frequency signal cables made of silver, single-crystal copper high-frequency cables have lower production cost.

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Abstract

The invention provides a method for reducing circuit losses based on single crystal copper. The single crystal copper is formed by the growth of one grain and thus has no grain boundary and less lattice imperfection. Compared to polycrystalline copper, the single crystal copper has better electrical conductivity and transmission characteristics, and thus has an excellent effect of reducing energyloss. The method for reducing circuit loss based on single crystal copper, includes, but not limited to, using the single crystal copper as a material for manufacturing high-frequency cables, wires and integrated circuits, so as to reduce energy loss and high-frequency signal transmission loss of the circuit.

Description

technical field [0001] The invention belongs to the field of electronic circuits, and in particular relates to a method for reducing high-frequency circuit loss based on single crystal copper. Background technique [0002] Copper is a transition element with the chemical symbol Cu and is one of the earliest metals used by humans. Due to its good electrical conductivity, thermal conductivity, ductility and corrosion resistance, it is widely used in electrical, light industry, machinery manufacturing, construction industry, national defense industry and other fields, and it is second only to nonferrous metal materials in China's consumption of nonferrous metal materials aluminum. At present, the method of annealing can recrystallize polycrystalline industrial copper foil to regenerate single crystal copper foil, such as the patent "Preparation method of large-size Cu(111) single-crystal copper foil and super-large-size single-crystal graphene" (application publication No. CN...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/02C30B29/02
Inventor 刘开辉尚念泽俞大鹏王恩哥
Owner PEKING UNIV
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