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Agilent EasyEXPERT User’s Guide Vol. 2, Edition 1 8-19
Application Library
QSCV Maximum Measurement Value and Accuracy
Measurement Accuracy
NOTE The measurement accuracy is not the specifications but the supplemental data.
Applicable conditions for supplemental data: Leak current compensation function
ON, Offset cancel function ON, QSO mode OFF
The measurement accuracy can be calculated by the following formula:
Measurement accuracy = A (%) + B (F)
A: Reading accuracy. % accuracy of the measured value.
B: Offset accuracy.
where,
Tinteg: Integration time for the capacitance measurement, in seconds
Tleak: Integration time for the leakage current measurement, in seconds
Vstep: QSCV measurement voltage, in V
Rdut: Equivalent parallel resistance of DUT, in
Cg: Guard capacitance of the measurement path, in F
Ax, Bx, Cx, and Dx values are the constant. For the values, see Table 8-2 to Table
8-4.
Calculation examples of the measurement accuracy are shown in Figure 8-6 through
Figure 8-30. Conditions of the calculation are shown in Table 8-5.
NOTE
Settings for the QSCV Measurement Mode
The measurement mode should be selected based on the measurement conditions.
Normal mode is effective for large leakage currents. The 4155C/4156C compatible
mode is effective if the leakage current is low, or the QSCV measurement voltage is
low.
AAp
Bp Cp Tinteg Dp
Tinteg
Tleak
-----------------++
Vstep
---------------------------------------------------------------------------------+=
B
Ao
Rdut
------------
Bo Boc+ Cg Co Coc Cg+ + Tinteg Do Doc Cg+
Tinteg
Tleak
-----------------+
Vstep
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+=
- Keysight EasyEXPERT Software 1
- For B1500A Users 5
- For B1505A Users 5
- In This Manual 6
- Contents 10
- 6 Remote Control Interface 13
- Sample programs 14
- About socket services 14
- Introduction 15
- Supported Operations 16
- Preparation for Communication 17
- Common Commands 22
- BENCh Subsystem 23
- [:BENCh]:COUNt:RESet 24
- [:BENCh]:LOAD[:SETup] 24
- [:BENCh]:PRESet:CATalog? 24
- [:BENCh]:PRESet:OPEN 24
- [:BENCh]:PRESet:SETup:SELect 25
- [:BENCh][:SELected]:ABORt 26
- [:BENCh][:SELected]:NAME 26
- [:BENCh][:SELected]:NUMBer 26
- [:BENCh][:SELected]:STRing 27
- [:BENCh]:TAG 28
- CALibration Subsystem 29
- :CALibration[:SMU]:ZERO[:ON] 30
- :CALibration[:SMU]:ZERO:PLC 31
- RESult Subsystem 32
- :RESult:FORMat 33
- :RESult:FORMat:ESCape 33
- :RESult:RECycle:ALL 34
- :RESult:RECycle[:LATest] 34
- STANDby Subsystem 35
- SYSTem Subsystem 36
- WORKspace Subsystem 37
- :WORKspace[:SELected]:NAME? 38
- :WORKspace:STATe? 38
- Error Messages 39
- 7 Utilities 41
- System Requirements 43
- Desktop EasyEXPERT 44
- About Desktop EasyEXPERT 45
- To Install Desktop EasyEXPERT 46
- To Start Desktop EasyEXPERT 47
- Execution Mode dialog box 47
- Start EasyEXPERT window 48
- Using 4155B/4156B/4155C/4156C 50
- License Management Tool 53
- License Management Tool GUI 54
- Setup File Converter 55
- Setup File Converter GUI 56
- MDM File Converter 57
- MDM File Converter GUI 58
- Utility Programs 59
- SetupFileConverter.exe 60
- MdmFileConverter.exe 63
- Utilities 72
- 8 Application Library 77
- Application Test Definitions 79
- Application Library 81
- Accuracy 91
- Capacitance (F) 92
- Capa citance (F) 93
- HRSMU, ASU+SMU 94
- Measurement Accuracy 95
- Reading Accuracy (%) 102
- Offset Accuracy (F) 102
- 9 If You Have a Problem 127
- When You Operate B1500 129
- ASU is not Detected 130
- To Simplify the Connections 131
- When You Perform Measurement 132
- )HUULWHEHDGV 134
- 7HVWGHYLFH 134
- Measurement 136
- To Make Backup 138
- To Check Module Slots 138
- To Check ASU/SMU Combination 138
- Data Backup and Recovery 140
- Folders to Backup 141
- To Make Database Backup 141
- To Restore Database Backup 142
- To Make Backup of Other Data 143
- B1500 System Recovery 144
- To Initialize Database 146
- To Restore Database 147
- Updating EasyEXPERT 148
- If You Have a Problem 150
- 10 Error Message 151
- Agilent FLEX Execution Error 182
- DAC test 209
- 3465 IM short test failed 213
- *B1540-90020* 228
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