Keithley 7072 Instruction Manual page 13

List of Illustrations
2
Figure 2. I
Figure 2-2
Figure 2-3
Figure 2-4
Figure 2-5
Figure 2-6
Figure 2-7
Figure 2-8
Figure 2-9
Figure 2-10
Figure 2-l 1
Figure 2-12
Figure 2- 13
Figure 2-14
Figure 2.15
Figure 2- I6
Figure 2- I7
Figure 2-18
Figure 2- I9
Figure 2-20
Figure 2-21
Figure 2-22
Figure 2-23
Figure 2-24
3 Applications
Stand Alone CV System Configuration.. ....................................................................................................
3-2
Computerized CV System Configuration ...................................................................................................
3-3
Typical Quasistatic CV Curve Generated by Model 595 ............................................................................ 3-5
Typical High-frequency CV Curve Generated by Model 590.. .................................................................. 3-6
Semiconductor Test Matrix .........................................................................................................................
3-7
System Configuration for Measuring Common-Emitter Characteristics.. .................................................. 3-8
Typical Common-Source FET IV Characteristics.. ....................................................................................
3-9
Resistivity Test Configuration ..................................................................................................................
3-10
Resistivity Measurement Conventions ......................................................................................................
3-l 1
Semiconductor Parameter Analysis Switching System ............................................................................ 3-13
SPA Connections ......................................................................................................................................
3-14
System Configuration for JFET Test ........................................................................................................ 3-l 6
Typical JFET Plot ..................................................................................................................................... 3-17
Figure 3- 1
Figure 3-2
Figure 3-3
Figure 3-4
Figure 3-S
Figure 3-6
Figure 3-7
Figure 3-8
Figure 3-9
Figure 3-10
Figure 3-l I
Figure 3-12
Figure 3- 13
Operation
Model 7072 Installation ..............................................................................................................................
2-2
Card Connectors.. ........................................................................................................................................
2-3
Triax Connector Configuration.. .................................................................................................................
2-4
Triaxial Cable Preparation ..........................................................................................................................
2-5
General Instrument Connections.. ...............................................................................................................
2-6
Model 617 Electrometer Connections.. .....................................................................................................
2-1 1
Model 196 DMM Connections .................................................................................................................
2-13
Model 230 Voltage Source Connections ..................................................................................................
2-14
Model 590 CV Analyzer Connections ......................................................................................................
2-l 5
Model 220 Current Source Connections.. .................................................................................................
2-16
Typical Test Fixture Connections.. ...........................................................................................................
2-17
Equivalent Circuit of Test Fixture Connections .......................................................................................
2-18
Model 7072 Matrix Organization .............................................................................................................
2-19
Connecting Three Cards for 8 x 36 Matrix.. .............................................................................................
2-21
Jumper Connector Locations ....................................................................................................................
2-21
Three Cards in Daisy Chain Configuration ...............................................................................................
2-22
I6 x 36 Matrix Constructed by External Jumpering. ................................................................................ 2-23
Using Triax Tee Adapters to Daisy Chain Cards.. ....................................................................................
2-24
Power Line Ground Loops.. ......................................................................................................................
2-25
Eliminating Ground Loops ........................................................................................................................
2-25
Shielding Example ....................................................................................................................................
2-27
Dual Shield Test Fixture ...........................................................................................................................
2-27
Guarded Circuit .........................................................................................................................................
2-28
Typical Guarded Signal Connections .......................................................................................................
2-29
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