Michael M Collver

Title: Michael M. Collver: Magnetoresistive Sensor Inventor

Introduction

Michael M. Collver is an inventor based in Afton, Minnesota, whose patent work focuses on magnetoresistive sensor design. His listed inventions include approaches to sensor structure and electrical contacts that shape read sensitivity. He is associated with Seagate Technology Incorporated and holds 3 patents.

Latest Patents

**Planarized Magnetoresistive Sensor.** This invention describes a magnetoresistive sensor with a track-width oxide layer over a magnetoresistive element. Etch-stop layers sit on opposite sides of the element, while contact and boundary-control layers lie beside the track-width oxide. A separate loft oxide layer covers these layers. The disclosed fabrication approach deposits the track-width oxide to a thickness corresponding to the contact and boundary-control layers.

**Magnetoresistive Sensor with Electrical Contacts Having Variable Resistance.** This sensor design positions the magnetization vector and current-density vector at an angle of approximately 45 degrees. Magnetic flux enters the active region approximately perpendicular to the magnetization vector and travels across it with substantially constant length, producing a rectangular-shaped read-sensitivity function. Electrical contacts adjacent to the active region include high- and low-resistance regions to direct current density.

Career Highlights

Collver’s listed patent work addresses magnetoresistive sensors, including layer arrangement, fabrication, and electrical-contact design. These approaches are intended to influence sensor performance and read sensitivity.

Collaborations

Collver’s listed coworkers include Wei C. Hsie and Charles H. Tolman. His work is associated with Seagate Technology Incorporated.

Conclusion

Michael M. Collver’s patents reflect a focus on magnetoresistive sensor structures and contact designs, contributing technical approaches to sensor fabrication and read sensitivity.