CSR Cal Substrates

The CSR family of calibration substrates delivers the highest accuracy available due to the high quality of each substrate. The calibration standards are manufactured using rugged, hard gold, which ensures a long lifetime.

All CSR calibration substrates include the Open standard on the substrate itself, providing a more accurate calibration when compared to simply lifting the probes for Open. Since our probe systems are used in the laser-trimming process, the typical accuracy is better than 0.1% for all Load standards. Also, the resistance of the Load standard remains stable within 0.3% of the ideal value (50 Ω), over a temperature range from 10 to 430 K.

Finally, the design of the Line standard is optimized, resulting in accuracy of the characteristic impedance within 1.0% of the ideal value (50 Ω) for frequencies up to 110 GHz and beyond. For these reasons, the CSR family guarantees the best calibration, and thus the most accurate measurements.