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Silicon-based metal alloy thin film, casing and electronic device with the thin film, and manufacturing method

A technology of alloy film and electronic device, which is applied in metal material coating process, ion implantation plating, coating, etc., can solve the problems of uneven distribution of decorative coating, large color difference between batches, and low production yield. Achieve the effect of increasing product value, high production yield, and small color difference

Inactive Publication Date: 2012-02-22
CHINA STEEL
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the decorative coating 12 has disadvantages such as uneven distribution, easy discoloration, low production yield, large color difference between batches, poor weather resistance, poor adhesion, and cannot be applied to high-production-efficiency in-mold injection processes.

Method used

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  • Silicon-based metal alloy thin film, casing and electronic device with the thin film, and manufacturing method
  • Silicon-based metal alloy thin film, casing and electronic device with the thin film, and manufacturing method
  • Silicon-based metal alloy thin film, casing and electronic device with the thin film, and manufacturing method

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Embodiment Construction

[0023] FIG. 2A shows a schematic diagram of the silicon-based metal alloy thin film of the present invention. In this embodiment, the silicon-based metal alloy thin film 2 is made by sputtering using a silicon-based metal alloy target (not shown). Wherein, according to different applications, the sputtering method can be selected to use direct current (DC) sputtering, direct current plus pulse (DC and pulse) sputtering or radio frequency (RF) sputtering.

[0024] In this embodiment, the silicon content of the silicon-based metal alloy thin film 2 is 62% to 85% by weight, and the rest is metal. Wherein, the metal is selected from the group of aluminum, nickel, titanium, zinc or a combination thereof, preferably, the silicon-based metal alloy is silicon-aluminum alloy. The thickness of the silicon-based metal alloy thin film 2 is preferably 200 to 600 nanometers. In this embodiment, the thickness of the silicon-based metal alloy thin film 2 is 500 nanometers, and the resistance...

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Abstract

The silicon content of the silicon-based metal alloy thin film of the present invention is 62% to 85% by weight, and the remaining weight percentage is metal, and the metal is selected from the group of aluminum, nickel, titanium, zinc or a combination thereof. In addition, the electronic device with the silicon-based metal alloy thin film can be manufactured by disposing the silicon-based metal alloy thin film on the casing, for example, the surface of the casing of the electronic device. The silicon-based metal alloy thin film of the present invention does not attenuate any electromagnetic wave signal, and has metal light and shadow and texture to increase product value, and is not easy to change color, high production yield, small color difference between batches, and good weather resistance , strong adhesion, long storage time of semi-finished products and other effects. Moreover, the silicon-based metal alloy thin film can be directly applied to a high-yield in-mold injection process to increase the output, and can be manufactured by a low-cost DC sputtering method, so the production cost can be reduced.

Description

technical field [0001] The present invention relates to a kind of coating film, shell with coating film and electronic device and the manufacturing method of forming coating film on the shell surface, in particular to a kind of silicon base metal alloy film, shell with silicon base metal alloy film and electronic device and A manufacturing method for forming a silicon-based metal alloy thin film on the surface of a case. Background technique [0002] In order to increase the beauty and added value of the product, a decorative coating will be provided on the surface of the product. Taking mobile 3C products (such as mobile phones or personal digital assistants) as an example, in order to achieve the purpose of reducing production costs and mass production, most conventional mobile 3C products use plastic as the material for the shell, and only high-end models use magnesium alloys and other metal materials. In order to improve the cheap feeling produced by plastic materials,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C14/14C23C14/34
Inventor 董寰乾邱军浩张瑞东洪胤庭李至隆
Owner CHINA STEEL
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