What is eMMC?

EMMC (Embedded Multi Media Card) is an embedded memory standard specification formulated by MMC Association, which is mainly aimed at products such as mobile phones or tablet computers. An obvious advantage of eMMC is that it integrates a controller in the package, provides a standard interface and manages flash memory, so that mobile phone manufacturers can focus on other parts of product development and shorten the time to market. These characteristics are equally important for NAND suppliers who want to reduce the size and cost of lithography.

Advantages of EMMC:

1. Simplify the design of mobile phone memory. At present, eMMC is the most popular local storage solution for mobile devices, aiming at simplifying the design of mobile phone memory. Because different brands of NAND flash memory chips include Samsung, KingMax, Toshiba or Hynix, Micron and so on. They need to be redesigned according to the product and technical characteristics of each company. No technology can be used for all brands of NAND flash memory chips before.

2. The update speed is fast. Every time the process technology of NAND Flash changes, including 70 nm to 50 nm, and then to 40 nm or 30 nm, mobile phone customers have to redesign it. However, the process technology of semiconductor products is introduced every 1 year, and the memory problem will also slow down the introduction of new mobile phone models. Therefore, the concept of eMMC, which wraps all the memory and control chips that manage NAND Flash on 65,438+0 MCP, has gradually become popular in the market.

3. Accelerate product development. The design concept of eMMC is to simplify the use of mobile phone memory. The NAND Flash chip and the control chip are designed as 1 MCP chip. Mobile phone customers only need to buy eMMC chips and put them into new phones, without dealing with other complicated NAND flash memory compatibility and management issues. The biggest advantage is to shorten the market cycle and research and development cost of new products and accelerate product innovation.