Apple received a patent for the back cover of the iPhone, which is not afraid of scratches, dents and other mechanical impact.
The lid itself is made of plastic. It is covered with small balls resembling beads that originated from glass and ceramics. As a result of the connection of materials, increased strength is formed.
Engineers can change the properties of the hull. For example, at an angle, you can make it stronger and stiffer than the back cover by using the original composition of the materials.
Apple plans to use such a case not only in smartphones, but also in watches, tablets and laptops. [PhoneArena]
Source: Iphones RU
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