Fabrication of high-value standard resistors

The National Institute of Standards and Technology (NIST) has fabricated stable, transportable 10 M/spl Omega/ and 1 G/spl Omega/ standard resistors for use in an international comparison of high resistances. This fabrication process is being applied to the construction of standard resistors of values up to 10 T/spl Omega/, with initial results indicating significant improvements in stability and fewer adverse effects induced by mechanical shock and vibration.