Data Storage Market

With our extensive history of designing and delivering both permanent and electro- magnetic 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.

In addition, to providing magnets with special coatings for corrosive environments, vacuum applications and ESD sensitive applications, our services include comprehensive magnetic circuit analysis, hermetic encasement, and field mapping of magnetic assemblies.

Our Featured Magnetic Assemblies

• Z-Gun™ and T-Gun™ Magnetron Sputter Sources - Patented technology allows for 45% or better target utilization.
• EraseTrack™ Bulk Eraser - Erases multiple disks in a single pass that is 25 times faster than servo erasing.
• EraseTrack™ Bulk Degausser - NSA Approved bulk degausser that fully erases both longitudinal and perpendicular in a single pass conveyor belt system.
• Electromagnets - Patented technology allows sputtering within a magnetic bias field with minimal skew and flux lines that are parallel to within 1.5 degrees.
• Halbach & Stelter Array Dipoles - Patented technology that allows for highly uniform magnetic fields of over 2-3T in a range of air gaps.

Our Magnets and Magnetic Assemblies Can Also Be Found In

• Wafer Processing
• Metrology and Production Testing
• Media

Wafer Processing

We offer patented permanent magnet and electro-magnet 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 serveral patented devices, including switchable wafer bias magnets, high field head initializers and high field magnetrons for use with ferrous targets.

Expertise includes:

• Annealing
• Sputtering Magnetrons
• Thin Film Alignment Frames
• Electroplating Magnets
• Initialization Magnets

Metrology and Production Testing

We design and deliver permanent and electro-magnets 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 "quadropole" magnets (Dual axis, independtly 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 eeasy field to be applied while the hard axis field is swept.  The magnets can be provided with special ESD coatings and plastics.

Expertise includes:

• Slider Test Magnets
• Wafer Mapping Magnets
• HGA Test Magnets
• Stack Assembly Test Magnets
• Quasistatic Test Magnets
• Environmental Test Magnets
• Setting Magnets
• Kerr Effect Test Magnets

Media

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.

Expertise includes:

• Hard Disk Erase Tools
• Sputtering Magnetrons
• Annealing Magnets
• Web Alignment
• Initializing Magnets