Description
Impedance Standard Substrates Overview
FormFactor Impedance Standard Substrates (ISSs) supports all of your high-frequency probing applications. Using them ensures greater accuracy and better repeatability in on-wafer calibration of vector network analyzers. Our ISSs offer the proven accuracy of LRRM calibrations with automatic load inductance compensation.
Downloads
| GSG | |||
| Pitch (µm) | P/N | Frequency (GHz)1 | Note |
| 50 to 75 | 162-641 | 325 GHz* | Verification Lines [0.5, 1, 1.1, 1.4, 1.9, 2.3, 2.7, 3, 3.2, 3.8, 4.5,7,14,27,40] ps |
| 50 to 75 | 138-356 | 325 GHz* | |
| 50 to 150 | 104-909 | 67 GHz | Mix of GSG & GS/SG |
| 75 to 150 | 104-783 | 145 GHz* | |
| 100 to 150 | 114-456 | 67 GHz | For probes with contact widths < 30 um |
| 100 to 150 | 138-357 | 325 GHz* | |
| 100 to 250 | 143-033 | 145 GHz* | |
| 100 to 250 | 101-190 | 67 GHz | |
| 100 to 500 | 109-531 | 67 GHz | Right Angle standards; N-E, N-W, E-W |
| 250 to 1250 | 106-682 | 67 GHz | |
| 150 to 3000 | 108-010 | 67 GHz | Recommended > 1250 um pitch |
| 1 Recommended upper frequency * Supports Probe for full range coaxial ranges up to 145 GHz and banded Waveguides to 145 GHz or 325 GHz |
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| GS/SG | |||
| Pitch (µm) | P/N | Frequency (GHz)1 | Note |
| 50 to 150 | 104-909 | 67 GHz | Mix of GSG & GS/SG |
| 100 to 250 | 103-726 | 67 GHz | |
| 250 to 1250 | 106-683 | 67 GHz | |
| 150 to 3000 | 108-011 | 67 GHz | Recommended > 1250 um pitch |
| 1 Recommended upper frequency | |||
| GSGSG / THRU | |||
| Pitch (µm) | P/N | Frequency (GHz)1 | Note |
| 100 to 125 | 129-239 | 67 GHz | Also supports SGS, SGSG, GSGS configurations |
| 150 | 126-102 | 67 GHz | Also supports SGS, SGSG, GSGS configurations |
| 150 to 225 | 129-240 | 67 GHz | Also supports SGS, SGSG, GSGS configurations |
| 250 | 129-241 | 67 GHz | Also supports SGS, SGSG, GSGS configurations |
| 300 to 650 | 129-248 | 67 GHz | General Purpose THRU substrate (Straight, Loop Back, Cross) |
| 700 to 1250 | 129-249 | 67 GHz | General Purpose THRU substrate (Straight, Loop Back, Cross) |
| 1 Recommended upper frequency | |||
| GSSG / THRU | |||
| Pitch (µm) | P/N | Frequency (GHz)1 | Note |
| 100 to 150 | 129-246 | 67 GHz | Also supports SSG, GSS configurations |
| 175 to 250 | 129-247 | 67 GHz | Also supports SSG, GSS configurations |
| 300 to 950 | 129-248 | 67 GHz | General Purpose THRU substrate (Straight, Loop Back, Cross) |
| 1000 to 1250 | 129-249 | 67 GHz | General Purpose THRU substrate (Straight, Loop Back, Cross) |
| 1 Recommended upper frequency
Wide Pitch: (> 250 um) differential / multiport calibration, additionally use the wide pitch, single-ended ISS (106-682 or 106-683) Narrow Pitch: For dual probe with pitches <100um, please use the matching singled-ended (GSG or GS / SG) ISS |
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| Multiple Config | |||
| Pitch (µm) | P/N | Frequency (GHz)1 | Note |
| Variable | 005-016 | Variable | General Purpose |
| 80 to 3000 | 106-686 | 67 GHz | General Purpose Membrane |
| 1 Recommended upper frequency | |||
