Shulou(Shulou.com)06/01 Report--

Today, I will talk to you about the working principle and technology of MRAM, which may not be well understood by many people. in order to make you understand better, the editor has summarized the following contents for you. I hope you can get something according to this article.

RAM is a storage technology that uses electron spins to store information. Non-volatile MRAM has the potential to become a general-purpose memory, which can combine the density of memory with the speed of SRAM memory while maintaining non-volatility and high energy efficiency all the time. MRAM memory chips are resistant to high radiation and can operate at extreme temperatures and are tamper-proof. In this article, everspin Agent introduces the working principle and technology of MRAM.

The data in the MRAM chip is stored by magnetic storage elements. These elements are made up of two ferromagnetic plates separated by a thin layer of insulation, each of which remains magnetized. This structure is called magnetic tunnel junction (MTJ). One of the two plates is a permanent magnet set to a specific polarity during manufacturing; the magnetic susceptibility of the other plate can be changed with the stored data. Renesas recently added a MRAM device that uses a proprietary spin transfer torque MRAM (STT-MRAM) based on vertical magnetic tunnel junctions (p-MTJ). The p-MTJ includes a fixed and immutable magnetic layer, a dielectric barrier layer and a changeable ferromagnetic storage layer.

In the programming operation, according to the current direction of the p-MTJ element, the magnetic field direction of the storage layer is electrically switched from a parallel state (low resistance state "0") to an anti-parallel state (high resistance state "1). These two different resistance states are used for data storage and sensing.

After reading the above, do you have any further understanding of the working principle and technology of MRAM? If you want to know more knowledge or related content, please follow the industry information channel, thank you for your support.

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.