Hon Hai Precision Industry Co., Ltd (Tu-Cheng, Taipei Hsien, TW) technologist Ga-Lane Chen reveals nanostructured boron based protective films for portable electronic devices. The protective film nanomaterials have an average grain size in the range from about 5 nanometers to about 200 nanometers. Hon Hai’s nanoparticle protective film structure exhibits good corrosion resistance, good surface roughness and hardness, as well as good mechanical properties.
According to U.S. Patent 7,646,080, the protective film structure, is comprised of: a nanoparticle base comprised of amorphous boron nitride and amorphous boron carbide; an adhesive layer containing chromium or titanium formed on the base; an intermediate layer containing chromium nitride and titanium nitride formed on the adhesive layer. The intermediate layer is corrosion resistant.
The outermost layer formed on the intermediate layer is formed from a group consisting of diamond-like carbon, aluminum nitride, and titanium dioxide. The diamond-like carbon has better resistance with high hardness. Aluminum nitride is a good heat conductor, so that it is good for heat dissipation use in mobile phones and notebooks. Titanium dioxide is a kind of photo catalyst, when applied to an outer surface of an electrical product it improves attributes including anti-bacteria and anti-viral disinfection, deodorization, detoxification, self-cleaning, and anti-fogging.
The protective film structure includes nanoparticles that are comprised of a material selected from the group consisting of carbon nano tubes, carbon nano sticks, fullerenes, carbon particles, nano-sized conductive metals, nano-sized semiconductors, and any combination of them.
With the development of wireless communication technology and information processing technology, portable electronic devices, such as mobile telephones and notebooks, are now in widespread use. These electronic devices enable consumers to enjoy the convenience of high technology services, anytime and at virtually any location.
Generally, an electronic device has most of its electronics in one housing, called a body. The exterior surface of the body is normally made of light weight plastics or magnesium alloy. However, plastic products give customers a "cheap" feeling. The mechanical properties of magnesium alloy decay overtime. The magnesium alloy also has a rough surface, poor corrosion resistance and is highly inflammable.
The protective film structure includes nanoparticles that are comprised of a material selected from the group consisting of carbon nano tubes, carbon nano sticks, fullerenes, carbon particles, nano-sized conductive metals, nano-sized semiconductors, and any combination of them.
With the development of wireless communication technology and information processing technology, portable electronic devices, such as mobile telephones and notebooks, are now in widespread use. These electronic devices enable consumers to enjoy the convenience of high technology services, anytime and at virtually any location.
Generally, an electronic device has most of its electronics in one housing, called a body. The exterior surface of the body is normally made of light weight plastics or magnesium alloy. However, plastic products give customers a "cheap" feeling. The mechanical properties of magnesium alloy decay overtime. The magnesium alloy also has a rough surface, poor corrosion resistance and is highly inflammable.
