For today's smartphones, performance is no longer the first problem restricting the development of mobile phones, but heat dissipation. Because other conditions remain the same, the stronger the performance of the mobile phone processor, the greater the increase in power consumption, especially for mobile terminals, the internal space is inch inch gold, for the mobile phone itself heat dissipation requirements are higher.
Therefore, heat dissipation has become an essential part of the flagship machine. Because the physical structure inside the fuselage is relatively fixed, for the flagship machine, heat dissipation is competing for the use of sophisticated materials. When it comes to heat dissipation, it is believed that most users will first think of a word ' graphene '.
The word can often be seen in some news announcing major advances in national science and technology, and is now known to be the most accessible to commercial high-tech materials. Graphene is known as the ' Black Gold ' and the ' King of new Materials ' as a new type of nanomaterials found in the scientific community that are thinner, more intense and have stronger conductive thermal properties. Graphene is a single-carbon atomic flake material that is detached from graphite materials and consists of a series of carbon atoms arranged in a honeycomb lattice.
This special structure allows graphene to have better electrical conductivity than copper, more than 100 times times the strength of steel, and can quickly spread heat, is the industry's leading thermal conductivity materials. It is not easy to bring a technology from theory into reality and apply it in commercial use. Since 2004, the first discovery of graphene by physicists Andrei Haim and Constantine Novoshorov of the University of Manchester in the United Kingdom has set off a boom in the application of graphene industry. By 2015, Huawei had worked with the University of Manchester to study how to apply the groundbreaking results of graphene to consumer electronics and mobile communications devices.
Graphene development landed, after more than 10 years of time. Strictly speaking, graphene is only a heat dissipation material, as to how to use it rationally, is to test the difficulties of manufacturers. In order to realize the commercial application of graphene materials, it is necessary to overcome many difficulties, among which mass production process is a major challenge. Huawei and industry partners to achieve mobile phone application specifications Graphene material mass production, the yield from the initial less than 10%, to reach tens of millions of commercial levels.
After more than 3 years of R & amp; d and accumulation by Huawei 2012 Laboratories and a number of partners in academia and industry, graphene membranes were eventually able to appear on mobile phones as heat dissipation materials. Of course, not only graphene, Huawei Mate X also uses a new VC liquid cooling technology, VC liquid Cold board covering the Huawei Mate X Processor's large core, small core, GPU, processor heat through a shorter path to the VC cold board, and through the phase change heat transfer system to spread heat to the entire fuselage.
Compared with the heat pipe, the ultra-wide VC liquid Cooling on the SOC heat source coverage, from the original less than 50% to 100% full coverage, constitute the heat dissipation of the ' highway ' We know that VC liquid Cooling was originally mainly used for high-end data center Server heat dissipation, pipe body is very heavy, after a long period of lightweight improvement and optimization, at present Huawei Mate X can do 0.4mm thickness, the production process requirements are very demanding. The use of semiconductor processing commonly used etching process, processing less than 0.1mm wall thickness of the plate, the use of copper wire thinner than the head hair into the internal liquid capillary structure, after 700 ℃ or so high temperature sintering, welding, vacuum, injection, sealing and other multi-channel technology, the formation of steam flow, liquid reflux of high-efficiency two-phase heat transfer temperature plate
Realize the industry 0.4mm thickness VC mass production application. And the reason why Huawei will make such a big effort, the heat dissipation technology to do so the ultimate, or from the user's actual experience of the point of view. Especially now the phenomenon of hand-swimming hot, resulting in playing games, charging and other scenes of fever more and more serious. Especially now many people have a minute and a second can not leave the mobile phone, even if there is no electricity but also to charge while playing, the phone is like a small stove. Mobile phone heating will not only affect the feel and mood, but also because of the high temperature caused by the phone on the CPU and GPU to reduce frequency, resulting in the Carlton.
In other words, we may be killed by the other regiment in the King's glorious qualifying tournament because of the heat of the cell phone, which may be slain in seconds because the heat of the cell phone becomes a carton in the decider that stimulates the battlefield. With vapor chamber liquid cooling technology and graphene membrane heat dissipation of the dual combination, so that Huawei Mate X's heat dissipation capacity is about 50% higher than the previous mate 10, the temperature of the heating concentration point is more than 3 degrees lower than the previous generation, the realization of room temperature Top Game extreme picture quality, the performance of full frame.