Data Storage
We provide magnetic solutions for the data storage market. We offer a wide range of permanent and soft magnetic materials and assemblies. Whether your device requires the maximum energy product of NdFeB and the high saturation induction of 2V permendur pole pieces, or a low loss, high frequency ferrite or powdered iron, we can assist you in the selection of the correct material for your application. With our extensive history of designing and delivering both permanent and electromagnetic assemblies to our customers' exacting requirements, process and manufacturing engineers can rely on our products to contribute measurably to improved throughput and higher product yields.
Our services include comprehensive magnetic circuit analysis, hermetic encasement, and field mapping of magnetic assemblies. In addition, we can provide magnets with special coatings for corrosive environments, vacuum applications and ESD sensitive applications.
We understand the dynamics of the data storage market and are committed to offering the shortest lead-times in the industry. Next time you have a magnetic requirement, please contact us and schedule a meeting to review your needs.
Wafer Processing
We offer proprietary permanent magnet and electromagnet technology for the processing of disk drive recording heads, MR, GMR, TJ and M-RAM devices. Our magnetic assemblies can be designed to operate under a variety of conditions and environments for the precision alignment of ferromagnetic and antiferromagnetic materials. They are also designed to offer high field uniformity and minimal dispersion angles. Additionally, we offer several patented devices including switchable wafer bias magnets, high field head initializers and high field magnetrons for use with ferrous targets.
 Solutions:
- Annealing
- Sputtering Magnetrons
- Thin Film Alignment Frames
- Electroplating Magnets
- Initialization Magnets
Metrology and Production Testing
For years, we've been designing and delivering both permanent magnets and electromagnets for material analysis and production testing. We have designed both static and alternating field magnets. Magnets can be optimized for high field operation. We can provide dipole or "quadrapole" magnets (dual axis, independently driven). Both axes can be driven simultaneously to create fields at any angle. This capability allows pinning direction measurements on GMR films and devices. Dual axis capability also allows a DC easy field to be applied while the hard axis field is swept. The magnets can be provided with special ESD coatings and plastics.
Solutions
- Slider Test Magnets
- Wafer Mapping Magnet
- HGA Test Magnets
- Stack Assembly Test Magnets
- Quasistatic Test Magnet
- Environmental Test Magnets
- Setting Magnets
- Kerr Effect Test Magnets
Media
 We design and deliver both permanent and electromagnets for magnetic and magneto-optical media processing. We have experience designing both static and alternating field magnets. Magnets can be optimized for high field operation. We can provide high gradient dipole magnets for media alignment on disks or tapes. Permanent magnet designs offer the benefits of no additional power supply or control circuitry.
Solutions
- Hard Disk Erase Tools
- Sputtering
- Annealing
- Web Alignment
- Initializing
For further inquiries, please e-mail us at info@dextermag.com -or- call us at: 800-345-4082 (In North America) or +44 (0) 1189 602430 (In Europe).
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