Everspin Technologies, Inc is a global leader in the design and manufacture of MRAM and STT-MRAM. Its market and application areas involve data persistence and integrity, and low latency and security are essential. Everspin MRAM products are widely used in data center, cloud storage, energy, industrial, automotive and transportation markets, laying the strongest and fastest growing foundation for global MRAM users.
This article mainly introduces common questions about Everspin MRAM
Is Everspin developing process/technical solutions to increase resistance to magnetic fields?
The magnetic shield of Everspin MRAM standard products has excellent immunity to electromagnetic interference in all conventional applications. Everspin will always be looking for ways to increase its resistance to external magnetic fields. As long as qualified products with higher resistance are developed, changes will be announced. The product data sheet provides specific immunity specifications for any product.
How is MRAM affected by external magnetic fields?
The maximum external magnetic field that Everspin MRAM can withstand without influence depends on the working state of the device. For the maximum tolerable external magnetic field, two different absolute maximum magnetic field specifications are specified. Hmax_write is the maximum allowable external magnetic field during data programming. Hmax_read is the maximum external magnetic field that can be tolerated during read operation, standby mode or no power (no write) operation. The specific values of these parameters are given in the data sheets of all Everspin MRAM devices.
Using magnetic tools around disks
Can I use magnetized tools around MRAM? (Answered)
A typical magnetized tool, such as a screwdriver with a magnetic drill bit, can be safely used around an unpowered MRAM without any negative effects, as long as the tool is at least one millimeter away from the MRAM device. Care should be taken to avoid direct contact with the MRAM package. As with any electronic components, it is not recommended to use tools near active circuits.
How does the magnetic field specification of MRAM compare to the magnetic field specification of a hard disk drive?
Everspin MRAM has an absolute maximum magnetic field specification comparable to a hard disk drive.
What is MRAM?
MRAM is a storage technology that uses electron spin to store information (MRAM devices are Spintronics devices). MRAM has the potential to become a general-purpose memory-it can combine the density of storage memory with the speed of SRAM, while always maintaining non-volatility and high energy efficiency. MRAM can resist high radiation, can operate under extreme temperature conditions, and is tamper-proof. This makes MRAM suitable for automotive, industrial, military and space applications, which are an important part of MRAM developers.