There is an item that stays with you all the time, knows your little secrets, knows your bank card password, and depends on it for eating, drinking, and having fun. If it disappears, you will panic. "Can you guess what it is? In fact, this is easy to guess, after all, we use it every day, yes, it is a smartphone. Think about whether your smartphone is always in your hand, and whether all your password information is input into your smartphone. Now, you have to rely on your smartphone regardless of food, clothing, housing and transportation. After all, your smartphone can help you collect the information you want to know, help you do a good job in advance, and bring a lot of convenience to your life.

The application scenarios of smart phones are constantly enriched, and the high pursuit of functions and performances promotes the improvement of the integration of chips and electronic components. While electronic components are developing towards miniaturization, the use of electronic components in a single mobile phone is rapidly increasing.

In smart phones, the capacitor is an important component. After all, the capacitor is a kind of electric container. The function of the capacitor is to store electric energy and hold electric charges. It is widely used in electronic products, and is widely used in coupling, bypass, filtering, tuning circuits and so on. The capacitor used in smart phones is called MLCC capacitor, which is the abbreviation of Multi-layer Ceramic Capacitors, and belongs to ceramic capacitors.

Ceramic capacitors are made by using ceramic as dielectric, spraying silver layer on ceramic substrate, and firing silver film at low temperature as polar plate. Most of the capacitors are chip-shaped, tubular and round. MLCC capacitor is a capacitor formed by overlapping and combining ceramic dielectric films with printed electrodes in a staggered way for many times and sintering at high temperature at one time. Because MLCC capacitors are overlapped and combined in a staggered way, compared with other capacitors, MLCC capacitors are much smaller, and their volume is about the size of rice grains, which is also a big advantage in smart phones.

MLCC capacitors have excellent performance and have the advantages of high reliability, high precision, high frequency, intelligence, low power, miniaturization, and large capacity. They are used in smartphones. A smartphone uses about a thousand ceramic capacitors. More than 8,000 ceramic capacitors are used in automobiles, and smartphones and automobiles have a large demand for MLCC capacitors, so this is why MLCC capacitors are popular.

Source：zhixuJEC