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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

     

     


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    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.

     


    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 150 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

    Standard Calibration Substrate Selection Guide
    Calibration
    Substrate
    Pad Size (microns) Calibration
    Types
    Supported
    Footprint Pitch Range
    Recommended
    (microns)
    Pitch Range
    Acceptable
    (microns)
    CS-5 50 X 50 SOLT, LRL,
    LRM
    GSG 75 - 250 75 -250
    CS-9 100 X 100 SOLT, LRL,
    LRM
    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 5

    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 6

    Special Calibration Substrate Designed For Use Above 110 GHz
    Calibration
    Substrate
    Pad Size
    (microns)
    Calibration
    Types
    Supported
    Footprint Pitch Range
    Recommended
    (microns)
    Pitch Range
    Acceptable
    (microns)
    CS-15 25 X 25 SOLT, LRL,
    LRM
    GSG 40 - 150 (SOLT)
    30 - 150 (LRL)
    40 - 150
    FIGURE 7
     
    * 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@ggb.com

    Picoprobe® is a registered trademark of GGB Industries, Inc.