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DIFFERENTIAL CALIBRATION SUBSTRATES

The GGB Industries, Inc., line of DIFFERENTIAL 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 and LRM calibrations Includes CalKit software for easy loading to Network Analyzer Pitch range from 45 to 1325 microns Suitable for all Picoprobes® from DC to 110 GHz Available for GSGSG , GSSG, and SGS Footprints Load standards individually trimmed to 0.25% accuracy 25 mil (635 micron) thick alumina substrate
	FIGURE 1

Our accurate, easy to use calibration substrates, calibration coefficients, and detailed instructions allow you to precisely calibrate the measurement system to the probe tips.

The typical elements for calibrating a microwave measurement system consists of opens, shorts, 50 ohm loads, and throughs.  Our precision crafted calibration substrates, when properly used, assure you of accurate on-wafer test results.

All load standards are individually inspected and trimmed to within 0.25% accuracy using NIST traceable equipment.

Easy to use step by step instructions are provided for use with Agilent ENA four port network analyzers and Agilent PNA network analyzers with PLTS software.

 

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Differential Calibration Substrate Selection Guide
Calibration Substrate	Pad Size (microns)	Calibration Types Supported	Footprint	Recommended Pitch (microns)	Acceptable Pitch (microns)
CS-2-50	25 X 25	SOLT, LRL LRM	GSGSG	50	45-55
CS-2-75	25 X 25	SOLT, LRL LRM	GSGSG	75	70-80
CS-2-100	50 X 50	SOLT, LRL LRM	GSGSG	100	90 - 110
CS-2-125	50 X 50	SOLT, LRL LRM	GSGSG	125	115 - 135
CS-2-150	50 X 50	SOLT, LRL LRM	GSGSG	150	140 -160
CS-2-200	50 X 50	SOLT, LRL LRM	GSGSG	200	190 - 210
CS-2-225	50 X 50	SOLT, LRL LRM	GSGSG	225	215 - 235
CS-2-250	50 X 50	SOLT, LRL LRM	GSGSG	250	240 -260
CS-2-300	100 X 100	SOLT, LRL LRM	GSGSG	300	275 - 325
CS-2-350	100 X 100	SOLT, LRL LRM	GSGSG	350	325 - 375
CS-2-400	100 X 100	SOLT, LRL LRM	GSGSG	400	375 - 425
CS-2-450	100 X 100	SOLT, LRL LRM	GSGSG	450	425 - 475
CS-2-500	100 X 100	SOLT, LRL LRM	GSGSG	500	490 - 510
CS-2-750	150 X 150	SOLT, LRL LRM	GSGSG	750	700 - 800
CS-2-1000	150 X 150	SOLT, LRL LRM	GSGSG	1000	990 - 1010
CS-2-1250	150 X 150	SOLT, LRL LRM	GSGSG	1250	1225 - 1275
FIGURE 2

Calibration Substrate	Pad Size (microns)	Calibration Types Supported	Footprint	Recommended Pitch (microns)	Acceptable Pitch (microns)
CS-3-50	25 X 25	SOLT, LRM	GSSG	50	45-60
CS-3-75	25 X 25	SOLT, LRM	GSSG	75	65-85
CS-3-100	50 X 50	SOLT, LRM	GSSG	100	85 - 115
CS-3-125	50 X 50	SOLT, LRM	GSSG	125	110 - 140
CS-3-150	50 X 50	SOLT, LRM	GSSG	150	135 -165
CS-3-175	50 X 50	SOLT, LRM	GSSG	175	160 - 190
CS-3-200	50 X 50	SOLT, LRM	GSSG	200	185 - 215
CS-3-250	100X 100	SOLT, LRM	GSSG	250	200 - 300
CS-3-350	100 X 100	SOLT, LRM	GSSG	350	300 - 400
CS-3-450	100 X 100	SOLT, LRM	GSSG	450	400 - 500
CS-3-500	150 X 150	SOLT, LRM	GSSG	500	425 - 525
CS-3-600	100 X 100	SOLT, LRM	GSSG	600	550 - 625
CS-3-800	300 X 300	SOLT, LRM	GSSG	800	600 - 1000
CS-3-1000	300 X 300	SOLT, LRM	GSSG	1000	800 - 1075
CS-3-1250	300 X 300	SOLT, LRM	GSSG	1250	1050 - 1325
FIGURE 3
Calibration Substrate	Pad Size (microns)	Calibration Types Supported	Footprint	Recommended Pitch (microns)	Acceptable Pitch (microns)
CS-4-100	50 X 50	SOLT, LRM	SGS	100	90 - 110
CS-4-150	50 X 50	SOLT, LRM	SGS	150	140 - 160
CS-4-250	100 X 100	SOLT, LRM	SGS	250	225 - 275
CS-4-300	100 X 100	SOLT, LRM	SGS	300	275 - 325
CS-4-350	100 X 100	SOLT, LRM	SGS	350	325 - 375
FIGURE 4

* SOLT = Short-Open-Load-Through
LRL = Line-Reflect-Line
LRM = Line-Reflect-Match