The GGB Industries, Inc., line of CALIBRATION SUBSTRATES allows the user to calibrate any GGB Industries, Inc., microwave Picoprobe® at the probe tip. The underlying principal of the calibration of a measurement system is to provide accurate known standards to which the measurement system can be connected. The GGB Industries, Inc., line of calibration substrates is such a standard. Each calibration substrate contains highly precise elements for calibrating out the unavoidable errors and losses in a microwave network analyzer, its associated cabling, and the microwave probe to ensure accurate on-wafer testing.
Supports Precise SOLT, LRL/TRL, and LRM/TRM calibrations Includes CalKit software for easy loading to Network Analyzer Wide pitch range from 30 to 2,540 microns Suitable for all Picoprobes® from DC to 220 GHz Available for GS, SG, GSG Footprints Convenient alignment structures Individually tested and trimmed to exacting standards
Note: The above specifications may vary.
Our accurate, easy to use calibration substrates, calibration coefficients, and detailed instructions allow you to correct the measurement system (network analyzer + cabling + probe) whenever it produces a reading different than the standard.
The typical elements for calibrating a microwave measurement system consists of opens, shorts, matched loads, and throughs. These four elements have electrical characteristics that are very different from one another so that each element contributes an important part to the overall calibration process. In principle any set of standards could be employed, however, the more identical the standards are, the less accurate the calibration process becomes, which in turn results in inaccurate the on-wafer testing. Our precision crafted calibration substrates, when properly used, assure you of accurate on-wafer test results.
How to select the correct calibration substrate for your probing application(s):1) Identify your Picoprobe's footprint and pitch (tip spacing);
2) Determine which calibration type is appropriate for your application (SOLT, LRL/TRL, or LRM/TRM)*;
3) Using the Calibration Substrate Selection Guide, choose the calibration substrate which matches your Picoprobe's footprint, recommended pitch range, and your preferred calibration type.
Calibration Substrate Selection Guide Calibration
Pad Size (microns) Calibration
Footprint Pitch Range
CS-5 50 X 50 SOLT, LRL,
GSG 75 - 250 75 -250 CS-9 100 X 100 SOLT, LRL,
GSG 250 - 600 150 - 600 CS-10 150 X 150 SOLT, LRM GSG 600 - 1250 225 - 1250 CS-18
300 X 300 SOLT, LRM GSG 1250 - 2540 500 - 2540 FIGURE 2
CS-8 50 X 50
100 X 100
150 X 150
SOLT, LRM GS, SG 50 - 200 50 -300 CS-14 100 X 100 SOLT, LRM GS, SG 200 - 400 150 - 600 CS-11 150 X 150 SOLT, LRM GS, SG 400 - 1250 175 - 1250 CS-17 300 X 300 SOLT, LRM GS, SG 750 - 2540 450 - 2540 FIGURE 3
Special Calibration Substrate Designed For Use Above 110 GHz Calibration
Footprint Pitch Range
CS-15 25 X 25 SOLT, LRL,
GSG 40 - 150 (SOLT)
30 - 150 (LRL)
40 - 150 FIGURE 4
* SOLT = Short-Open-Load-Through
LRL = Line-Reflect-Line (Which is equivalent to TRL = Through-Reflect-Line)
LRM = Line-Reflect-Match (Which is equivalent to TRM = Through-Reflect-Match)
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GGB INDUSTRIES, INC. P.O. BOX 10958 NAPLES, FL 34101 Telephone (239) 643-4400 Fax (239) 643-4403 Email email@example.com Picoprobe® is a registered trademark of GGB Industries, Inc.