User`s guide
Table Of Contents
- User’s Guide
- 1 Getting Started
- 2 Introduction
- 3 Installation
- 4 Using EasyEXPERT
- 5 Classic Test Definition
- I/V Sweep
- Multi Channel I/V Sweep
- I/V List Sweep
- I/V-t Sampling
- C-V Sweep
- Direct Control
- Function Setup
- Auto Analysis Setup
- Display Setup
- SMU Range Setup Window
- ADC and Integration Time Setup Window
- Advanced Setup Window
- CMU Range Setup Window
- Advanced Setup Window for C-V Sweep
- Switching Matrix Control
- SPGU Control
- SPGU Pulse Setup Window
- Load Z Setup Window
- Pulse Switch Setup Window
- SPGU ALWG Setup Window
- Define ALWG Waveform Window
- 6 Application Test Definition
- 7 Function Details
- I/V Sweep Measurement
- Multi Channel I/V Sweep Measurement
- I/V-t Sampling Measurement
- C-V Sweep Measurement
- SPGU Module
- Sweep Abort Function
- Standby Function
- Bias Hold Function
- Current Offset Cancel
- SMU CMU Unify Unit
- Atto Sense and Switch Unit
- SMU/PG Selector
- SMU Ranging Mode
- SMU Compliance
- SMU Pulse
- SMU Measurement Time
- SMU Filter
- SMU Series Resistor
- Interlock Function
- Auto Power Off Function
- Initial Settings
- 8 Built-in Programming Tool
- 9 If You Have a Problem
- When You Operate B1500A
- When You Perform Measurement
- Measurement Takes More Time than Specified
- Noise Affects the Measured Values
- Voltage Measurement Error is Large
- SMU Oscillates for High-Frequency Device Measurements
- SMU Oscillates for Negative Resistance Measurements
- Large Current Causes High Temperature (Thermal Drift)
- Measurement Damages the Device under Test
- Leaving Connections Damages Devices after Measurement
- Unexpected Sampling Measurement Data is Returned
- MFCMU Causes Unbalance Condition
- Before Shipping to Service Center
- Data Backup and Recovery
- B1500A System Recovery
- Updating EasyEXPERT
- Error Codes
- 10 Application Library and Utilities
Agilent B1500 User’s Guide, Edition 7 7- 51
Function Details
SMU Ranging Mode
Limited Auto Ranging
Limited auto ranging is similar to auto ranging. However, limited auto ranging does
not use the range(s) less than what you specified. For example, if you select 10 mA
limited auto ranging, the measurement unit does not use the 1 mA range or less.
Consequently, the measurement time for limited auto ranging is less than for auto
ranging.
Fixed Range
The channel uses the specified range only.
For the current measurement channel, if yo
u specify a range higher than the
minimum range that covers the compliance value, the measurement channel uses
this range (compliance range).
Compliance Range
The compliance range is effective for the Vf/Im (voltage output and current
measurement) or If/Vm (current output and voltage measurement) channel. The
measurement channel automatically selects and uses the lowest range that covers the
specified compliance value.
For the measurement channel that performs constant voltage or current output, you
can set the complian
ce range.
For the measurement channel that performs sweep output, you can set the power
compliance va
lue. If you set the power compliance value, the channel uses the
lowest range that covers the lower value of either the specified compliance value or
the compliance value given by the following formula.
Current compliance = Specified power compliance valu
e / Step voltage
Voltage compliance = Specified power compliance value / Step cur
rent
For details about setting compliance, refer to “SMU Compliance” on page 7
-53.
NOTE Range change is performed when the compliance value is set, not when the
measurement is performed.