Mountain Scientifics Inc (MSI), established in 1998, provided wafer level testing solutions for MRAM, magnetic sensors and magnetic head wafers.
The company's QSW-Gen3 (initially released in 1999) product was a Quasi-Static Wafer tester product for STT-MRAM and HDD devices.
The company no longer seems to be in business.
P.O. Box 1400
Lyons, CO 80540