On the afternoon of December 12, OPPO's new generation of smart flagship, Find 5, finally came out. Apart from other configurations, one of the selling points of OPPO Find 5 is very shocking. It can be said that there is no one before or after it. It can also be said that it has epoch-making revolutionary significance. Although there were not many gorgeous presentations at the press conference, it is still difficult to cover up the light of this advanced technology, that is, the stack CMOS camera equipped with Find 5. Find 5 is the first mobile phone equipped with stack CMOS, and the only mobile phone with stack CMOS camera officially confirmed and released at present. Why is stack CMOS revolutionary? What's good about stack CMOS? In this article, we will briefly introduce.

We know that in order to obtain excellent photo effects, more and more mobile phones are now using back lit CMOS. There are many manufacturers that can produce back lit CMOS, including Sony, Panasonic OmniVision、Aptina、 Samsung, among others, Sony's backlight CMOS is the most famous and outstanding. Why? Because Sony's Backlit CMOS (BSI) uses SOI (Silicon on Insulator) wafers, which are much higher in technology and cost than ordinary silicon wafers (bulk silicon wafers). In terms of cost alone, SOI wafers are 4-5 times higher than ordinary bulk silicon wafers, and the finished products are 2-3 times higher. Even so, the flagship model will still be equipped with Sony cameras, and will also use Sony cameras as a selling point for promotion. Sony products have become a symbol of high-end.

The main camera of iPhone 5 is from Sony

There is no need to talk. What flagship mobile phones use Sonia cameras? It can be said that the most popular flagship computers of major manufacturers have been used, such as iPhone 5, Samsung Galaxy S3, Samsung Galaxy Note 2, Sony LT26ii, etc. You know, Samsung is also a camera maker. With its own products, you can know how advanced Sony's CMOS technology is.

In order to increase recognition, Sony has given a name to its own backlit CMOS, which is called "Exmor R CMOS". I believe most people have heard of it. This Exmor R CMOS is the CMOS technology used by the flagship models just mentioned. Up to now, Exmor R CMOS has accumulated very good user reputation, which can be said to be "successful". At this time, Sony is planning to develop more advanced CMOS technology. This is the "Exmor RS CMOS" we are going to talk about today. Compared with the former, "Exmor RS CMOS" is only one "S" more, but the gap is not a little bit. This "S" refers to "stack", that is, Stacked CMOS, or Stacked CMOS.

Laminated CMOS is more sensitive to light and has better imaging effect

What is Exmor RS stack CMOS? In brief, the Exmor RS stack CMOS sensor is developed from the back illuminated Exmor R CMOS sensor. The new sensor places the circuit part that originally needed to be close to the photosensitive module below the photosensitive module, making more space inside the device. While realizing function diversification, it has also achieved miniaturization. In essence, stack style and backlight style are two different structures. One CMOS can use backlight or stack style design alone, or both. Exmor RS CMOS has both designs.

Find 5 is the first mobile phone with stacked CMOS sensors

The OPPO Find 5 released this time uses stack CMOS, which is from Sony. It can be said that it is basically the Exmor RS CMOS series. So far, only Sony can produce stacked CMOS cameras. It is said that the next generation flagship Sony Yuga will be equipped with stacked CMOS cameras, but after all, it has not been released. Therefore, The Find 5 can be said to be the first mobile phone to use a new stacked CMOS camera. It is not too much to add such gorgeous words as "no one before or after" and "ushering in a new era of mobile camera technology". Of course, these are all from the technical point of view. Find 5 has just been released, and we have not seen the actual shooting effect yet. We are unable to draw a conclusion on the photographic ability of Find 5 for the time being. However, Find 5 has taken the first step, which is epoch-making.

This article will stop here for the moment, and then the author will bring you more "stack CMOS" analysis. Please pay attention!

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