Changsha Kona Fine Chemical Co., Ltd.

The Hidden Metals in Your Smartphone: A Glimpse into the Technology Behind the Mobile Phone Accessories

Essential Metals in Smartphones

Smartphones are complex devices composed of various metals, each serving specific purposes. Here are a few key examples:


Stainless Steel: Used for SIM card ejector pins, tray frames, and camera brackets, ensuring durability.

Aluminum-Magnesium Alloy: Primarily used for the phone's exterior, this alloy provides strength and protects the internal components.

Aluminum: Found in battery casings due to its excellent plasticity, allowing it to accommodate volume changes during charging and discharging.

Tin: Commonly used in soldering circuit boards, often alloyed with lead, silver, and copper.

Copper: Essential for creating conductive pathways within chips, protecting internal sensors.

Tungsten: Utilized in phone vibrators for its hardness and wear resistance.

Iron: Found in speaker components, where it vibrates to transmit sound through magnetic fields.

Nickel: Used in microphones and fingerprint sensors.

Zirconium: Utilized for fingerprint sensors.

Indium: Critical for the transparent conductive layer in touch screens.

Gallium: Used in semiconductor materials.

Tantalum: Found in capacitors for filtering and frequency tuning.

Rare Earth Elements: Enhance display and antenna performance.

Neodymium, Praseodymium, Gadolinum: Used in magnets for speakers and microphones.

Magnesium Alloy: Employed in casings for electromagnetic interference shielding.

Gold, Silver, Copper: Precious metals extensively used for soldering and conductivity in internal components.

These metals not only contribute to the functionality of smartphones but also demand high standards for surface smoothness and finish. The external components, particularly, require a mirror-like polish, such as the flawless stainless steel ejector pins and the increasingly popular liquid metal phone covers.


What is a Liquid Metal Phone?


The concept of a liquid metal phone first emerged in 2015 with the Turing Phone, touted as the worlds first liquid metal smartphone. It featured a unique Liquidmorphium alloy, offering hardness greater than titanium and steel, albeit at a heavier weight. The phone also included a Binnacle Ocean Master nano-coating, ensuring IPX8 waterproofing, allowing it to be submerged in approximately 10 meters of water.

Today, OPPO has reintroduced the liquid metal phone concept with the Ace 3 Pro, showcasing an innovative liquid metal reflection process that significantly enhances the devices aesthetic appeal. According to official statements, the OnePlus Ace 3 Pro features "Titanium Mirror Silver" with a seamless color design, ultra-sleek 3D glass back, and a flagship metal frame that offers a refined touch and comfortable grip, pushing the limits of glass craftsmanship.

 

What is a Liquid Metal Phone Case?


Not all so-called liquid metal phone cases are made from actual liquid metal. Many simply possess a high-gloss finish with unique liquid-like designs, creating a striking visual effect.

 

Daniel Wang, Chief R&D Officer at KONA, emphasized the importance of surface finish: "Whether its traditional stainless steel ejector pins, aluminum trays, or the latest liquid metal-inspired 3D glass covers, we are dedicated to providing our clients with suitable polishing solutions to achieve excellent surface results."

With the integration of diverse metals in smartphones and the trend towards innovative designs like liquid metal, achieving a perfect surface finish has never been more critical. As technology evolves, so too do the materials and techniques that define the smartphones of tomorrow.