{"id":2750,"date":"2024-06-07T12:33:44","date_gmt":"2024-06-07T12:33:44","guid":{"rendered":"https:\/\/partstack.com\/blog\/?p=2750"},"modified":"2024-06-07T12:33:44","modified_gmt":"2024-06-07T12:33:44","slug":"freescale-to-everspin-mram-technology-evolution","status":"publish","type":"post","link":"https:\/\/partstack.com\/blog\/freescale-to-everspin-mram-technology-evolution\/","title":{"rendered":"From Freescale to EverSpin: The Journey of MRAM Technology"},"content":{"rendered":"<h2><strong>Introduction to Magnetoresistive RAM (MRAM) Technology<\/strong><\/h2>\n<p><a href=\"https:\/\/partstack.com\/c\/memory-ics\/mrams\" target=\"_blank\" rel=\"noopener\">Magnetoresistive RAM (MRAM)<\/a> is a type of non-volatile random-access memory that stores data using magnetic domains. Instead of depending on a current or electric charge, MRAM employs magnetic storage components, which is different from regular RAM. Two ferromagnetic plates with a small insulating layer between them make up these elements. While the magnetization on one plate is always there, it is able to retain memory on the other. In this article, we will be diving into the transition from <a href=\"https:\/\/en.wikipedia.org\/wiki\/Freescale_Semiconductor\">Freescale Semiconductor<\/a> to <a href=\"https:\/\/www.everspin.com\/\">Everspin Technologies<\/a> (MRAM companies) and the advancements in MRAM Technology.<\/p>\n<h2><strong>Freescale semiconductor<\/strong><\/h2>\n<p>A major contributor to the development of magnetoresistive random access memory (MRAM) technology was Freescale Semiconductor. Freescale contributed significantly to Austin&#8217;s technological advancement. Motorola was responsible for a large portion of the early MRAM research. In 2004, it spun off its semiconductor division to form Freescale Semiconductor. Motorola (and subsequently Freescale) employed thousands of people when they established many chip facilities in Austin.<\/p>\n<h2><strong>Technological Overview<\/strong><\/h2>\n<p>Listed below are some properties of the Freescale MRAM Technology:<\/p>\n<ul>\n<li>One transistor and one magnetic tunnel junction (MTJ) memory cell were used in Freescale MRAM<\/li>\n<li>They were fabricated using five layers of metal utilizing a 180 nm CMOS technology.<\/li>\n<li>The storage density of MRAM was high.<\/li>\n<li>Production was made affordable by combining CMOS circuitry with magnetic storage.<\/li>\n<li>When the power was cut, MRAM still saved the data and provided quick read and write times.<\/li>\n<\/ul>\n<h2><strong>Working Principle<\/strong><\/h2>\n<ul>\n<li>Magnetic tunnel junctions (MTJs) were the storage components utilized in MRAM.<\/li>\n<li>A thin dielectric tunnel barrier, a free magnetic layer, and a fixed magnetic layer made up each MTJ.<\/li>\n<li>Via tunneling, electrons spin-polarized by the magnetic layers passed through the dielectric barrier.<\/li>\n<li>When the magnetic moment of the free layer was parallel to that of the fixed layer, the MTJ exhibited low resistance; when it was antiparallel, it exhibited high resistance.<\/li>\n<li>By measuring resistance without altering the magnetic state, data was detected and stored in a magnetic state.<\/li>\n<li>No magnetic polarization leakage over time, in contrast to charge-based storage.<\/li>\n<\/ul>\n<h2><strong>Transition From Freescale to EverSpin<\/strong><\/h2>\n<p>Freescale decided to establish a new business, EverSpin, in 2008. Founders established EverSpin with the express purpose of concentrating on MRAM technology. Several venture capital companies contributed $20 million to EverSpin, including Epic Ventures, Draper Fisher Jurvetson, Sigma Partners, New Venture Partners, and Lux Capital. Freescale situated the new business in a section of its <a href=\"https:\/\/partstack.com\/c\/other-function-semiconductors\" target=\"_blank\" rel=\"noopener\">semiconductor<\/a> foundry in Chandler, Arizona, USA. About fifty Freescale staff members working on MRAM technologies joined EverSpin.EverSpin utilized toggle-mode writing, which depended on magnetic field-induced switching, in its first MRAM product. In 2006, the company released the 4Mb MRAM product (MR2A16A) for sale. EverSpin persisted in creating associated MRAM components, such as a 16Mb circuit.<\/p>\n<h2><strong>Everspin MRAM Technologies<\/strong><\/h2>\n<p>Everspin&#8217;s MRAM devices are appropriate for cloud computing, industrial IoT, and data analytics because of their durability, persistence, and low latency. High-performance STT-MRAM devices are among Everspin&#8217;s PERSYST line of persistent memory solutions. Recently, they added additional capacity points and wider temperature ranges to their industrial STT-MRAM product line. Everspin also has Toggle MRAM, SOT-MRAM, and eMRAM technologies. Below is an overview of the technologies they offer:<\/p>\n<h2><strong>Offerings of Everspin Technology<\/strong><\/h2>\n<h3><strong>PERSYST Persistent Memory<\/strong><\/h3>\n<ul>\n<li>The company markets Everspin&#8217;s premium line of permanent memory families under the PERSYST name.<\/li>\n<li>MRAM is the perfect solution for mission-critical data security because it combines the finest features of random access memory with non-volatility.<\/li>\n<li>Applications include industrial Internet of Things (IoT), cloud computing, artificial intelligence (AI), and data analytics.<\/li>\n<li>With their FlashCore Module 4, IBM has notably selected Everspin&#8217;s 1Gb STT-MRAM, guaranteeing crucial data integrity even in the event of a power outage.<\/li>\n<\/ul>\n<h3><strong>Industrial STT-MRAM Devices<\/strong><\/h3>\n<ul>\n<li>High-density STT-MRAM is available from Everspin via its EMxxLX product line.<\/li>\n<li>Everspin designs products from its STT-MRAM line to meet various memory demands and use scenarios. They provide a 1Gb density device that functions like a persistent DRAM and has an interface similar to DDR4 for data center and enterprise storage applications.<\/li>\n<li>The company recently expanded it to have a larger industrial temperature range of 105\u00b0C, a lower footprint container, and a new 4Mb capacity point.<\/li>\n<li>These MRAM chips provide minimal latency, easy design integration, and performance comparable to SRAM.<\/li>\n<li>Using the JEDEC standard xSPI interface for high-speed data transfers, they have created STT-MRAM devices with increased temperature range, write endurance, and data retention for Industrial IoT and wider embedded systems.<\/li>\n<li>Densities of 8 Mb, 16 Mb, 32 Mb, and 64 Mb are available in the xSPI STT-MRAM lineup. It has an unrestricted write endurance, a maximum throughput of 400 MB\/s, and a 10-year data retention span across temperature ranges.<\/li>\n<\/ul>\n<h3><strong>Toggle MRAM<\/strong><\/h3>\n<ul>\n<li>Toggle MRAM offers non-volatile memory with quick read and write speeds.<\/li>\n<li>The MR5A16A 32Mb Toggle MRAM and the EMD4E001G 1Gb STT-MRAM are notable products.<\/li>\n<\/ul>\n<h3><strong>Spin-Orbit Torque MRAM (SOT-MRAM)<\/strong><\/h3>\n<ul>\n<li>SOT-MRAM is a newly developed MRAM variation that switches the memory cell&#8217;s magnetic state using spin-orbit torque.<\/li>\n<li>It has low power consumption, great scalability, and compatibility with current CMOS technologies.<\/li>\n<li>Wearables, mobile devices, and edge computing are examples of applications.<\/li>\n<\/ul>\n<h3><strong>Embedded MRAM (eMRAM)<\/strong><\/h3>\n<ul>\n<li>Embedded MRAM, or eMRAM, directly integrates MRAM cells into microcontrollers (MCUs) or system-on-chip (SoC) designs.<\/li>\n<li>Storing important data non-volatilely negates the requirement for external flash memory.<\/li>\n<li>Smart sensors, IoT gadgets, and automotive electronics all employ eMRAM.<\/li>\n<\/ul>\n<h2><strong>conclusion<\/strong><\/h2>\n<p>In conclusion, Magnetoresistive RAM (MRAM) technology represents a major advancement in non-volatile memory systems in the semiconductor industry, as demonstrated by its path from Freescale Semiconductor to Everspin. With the merging of single transistors and single magnetic tunnel junction memory cells, Freescale&#8217;s ground-breaking work in MRAM established the foundation for high-density, low-power, and quick data storage. The switch to Everspin in 2008 signaled a deliberate effort to advance MRAM technology. The applications of MRAM in a variety of industries, including industrial IoT, cloud computing, artificial intelligence, and data analytics, have expanded thanks to Everspin&#8217;s developments, which include Toggle MRAM, Spin-Orbit Torque MRAM (SOT-MRAM), and embedded MRAM (eMRAM).<\/p>\n<p>MRAM has the ability to combine the speed and efficiency of SRAM with the non-volatility of conventional storage, as demonstrated by Everspin&#8217;s permanent memory solutions, especially the PERSYST line and high-density STT-MRAM devices, guaranteeing data integrity and performance in mission-critical applications. This advancement in technology not only improves memory performance and reliability but also reaffirms Everspin&#8217;s leadership in the semiconductor industry by securing MRAM&#8217;s place in next-generation computing and storage products.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Introduction to Magnetoresistive RAM (MRAM) Technology Magnetoresistive RAM (MRAM) is a type of non-volatile random-access memory that stores data using magnetic domains. Instead of depending on a current or electric charge, MRAM employs magnetic storage components, which is different from regular RAM. Two ferromagnetic plates with a small insulating layer between them make up these [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":2751,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[49],"tags":[],"class_list":["post-2750","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-partstack-guides"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>The MRAM Technology Journey | From Freescale to EverSpin<\/title>\n<meta name=\"description\" content=\"Explore the transition of MRAM technology from Freescale to EverSpin. 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