Housing and electronic device using the same

Patent metadata

Field	Value
Publication number	US-9219803-B2
Application number	US-201313914923-A
Country	US
Kind code	B2
Filing date	Jun 11, 2013
Priority date	Jan 23, 2013
Publication date	Dec 22, 2015
Grant date	Dec 22, 2015

Abstract

A housing includes a substrate, a transition layer disposed on the substrate, and a color layer disposed on the transition layer. The transition layer is a layer of titanium-nitride and M-nitride, wherein the M is chromium, aluminum, or silicon. The color layer is a titanium-aluminum-nitride layer. The color layer provides the appearance of enamel on the exterior of the housing. The transition layer enhances the hardness of the housing. An electronic device using the housing is also described.

First claim

What is claimed is:

1. A housing, comprising:
a substrate;
a transition layer disposed on the substrate; and
a color layer disposed on the transition layer;
wherein the transition layer is a layer of titanium-nitride and M-nitride, the M being chromium, aluminum, or silicon;
wherein the color layer is a titanium-aluminum-nitride layer.

2. The housing as claimed in claim 1 , wherein in the transition layer, the titanium nitride has a mass percentage of about 50% to about 60%, and the M-nitride has a mass percentage of about 40% to about 50%.

3. The housing as claimed in claim 1 , wherein the transition layer has a thickness ranging from about 0.3 μm to about 0.5 μm.

4. The housing as claimed in claim 1 , wherein the color layer comprises titanium nitride phase and aluminum nitride phase, the titanium nitride has a mass percentage of about 30% to about 40%, and the aluminum nitride has a mass percentage of about 60% to about 70%.

5. The housing as claimed in claim 1 , wherein the color layer has a thickness ranging from 0.5 μm to about 0.8 μm.

6. The housing as claimed in claim 1 , wherein the substrate is made of aluminum, or stainless steel.

7. The housing as claimed in claim 1 , further comprising a base layer formed between the substrate and the transition layer, the base layer is a metal layer of Ti—M, wherein M is chromium, aluminum, or silicon.

8. The housing as claimed in claim 7 , wherein in the base layer, Ti has a mass percentage of about 50% to about 60%, and M has a mass percentage of about 40% to about 50%.

9. The housing as claimed in claim 7 , wherein the base layer has a thickness ranging from about 0.1 μm to about 0.2 μm.

10. The electronic device as claimed in claim 1 , further comprising a base layer formed between the substrate and the transition layer, the base layer is a metal layer of Ti—M, wherein M is chromium, aluminum, or silicon.

11. The electronic device as claimed in claim 10 , wherein in the base layer, Ti has a mass percentage of about 50% to about 60%, and M has a mass percentage of about 40% to about 50%.

12. The electronic device as claimed in claim 10 , wherein the base layer has a thickness ranging from about 0.1 μm to about 0.2 μm.

13. An electronic device, comprising:
a main body; and
a housing configured to assemble with the main body, the housing comprising:
a substrate;
a transition layer disposed on the substrate; and
a color layer disposed on the transition layer;
wherein the transition layer is a layer of titanium-nitride and M-nitride, the M being chromium, aluminum, or silicon;
wherein the color layer is a titanium-aluminum-nitride layer.

14. The electronic device as claimed in claim 13 , in the transition layer, the titanium nitride has a mass percentage of about 50% to about 60%, and the M-nitride has a mass percentage of about 40% to about 50%.

15. The electronic device as claimed in claim 13 , wherein the transition layer has a thickness ranging from about 0.3 μm to about 0.5 μm.

16. The electronic device as claimed in claim 13 , wherein the color layer comprises titanium nitride phase and aluminum nitride phase, the titanium nitride has a mass percentage of about 30% to about 40%, and the aluminum nitride has a mass percentage of about 60% to about 70%.

17. The electronic device as claimed in claim 13 , wherein the color layer has a thickness ranging from 0.5 μm to about 0.8 μm.

18. The housing as claimed in claim 10 , wherein the substrate is made of aluminum, or stainless steel.

Assignees

• Shenzhen Futaihong Prec Ind Co
• Fih Hong Kong Ltd
• Fih Hong Long Ltd

Inventors

• Zhang chun-jie

Classifications

• C03C25/106

  Single coatings · CPC title

• H04M1/0202

  Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets (constructional features of telephone transmitters or receivers, e.g. of speakers or microphones H04M1/03) · CPC title

• Y10T428/266

  of base or substrate · CPC title

• Y10T428/265

  1 mil or less · CPC title

• G06F1/181

  Enclosures (for portable computers G06F1/1613) · CPC title