Micro Magnetics is a leader in commercial applications of spintronics. The company provides innovative solutions, products, and services in magnetic sensing and semiconductor metrology. Micro Magnetics manufactures and supplies magnetic tunneling junction sensors, magnetic current imaging systems, magnetic field generators, and semiconductor process equipment. It also provides failure analysis and magnetic imaging services, and custom sensing and imaging solutions.



			TMR Magnetic Microsensor Probe STJ-020 Click here for full STJ-020 TMR sensor description and datasheet Order Online Features and Benefits Superior field sensitivity of 5 nanotesla Active areas as small as 1x2 microns On-board ESD protection Tapered vertical probe design allows easy access to cramped areas Probe length is customizable Optional sensor polishing allows an approach distance of < 5 microns (0.0002") Designed for use with the AL-05 signal conditioning board Product Description The STJ-020 is a low-field magnetic sensor probe designed for magnetic imaging and scanning applications. The sensor probe features a Micro Magnetics SpinTJ sensor with an active (sensing) area of just a few microns (~0.0001") in size. This allows the STJ-020 to detect field signatures from single magnetic particles or microscopic magnetic media. The field sensitivity of the STJ-020 is 5 nT, which is ten thousand times smaller than the magnetic field of the Earth. The geometry of the STJ-020 probe makes it perfect for magnetic imaging of currency, magnetic films, or media (see our image library for some relevant results). The STJ-020 comes with a shielded multi-pin connector. This connector is designed to mate to our AL-05 signal conditioning board to create a full micron-resolution magnetic sensing solution. Micro Magnetics also supplies the mating connector for custom applications. [Return to SpinTJ Product Page] Copyright © 2002-2025 Micro Magnetics, Inc. All rights reserved.