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- 59
Function Details
SMU Measurement Time
Overhead Time
The overhead time is the time required for range changing and so on. This time
depends on the measurement condition, and cannot be specified. Major elements of
the overhead time are:
• Range changing time during measurement (when measurement ranging mode is
set to auto or
limited auto)
• Range changing time at measurement start (when the measur
ement range is less
than the compliance value)
To Specify Source Output Time
You cannot specify the measurement time. However, in sweep measurement mode,
you can specify a source output time that includes the measurement time. To specify
the source output time, set the delay time and the step delay time. The step delay
time is defined as the time from the measurement trigger up to the trigger for
changing the source output value. See the figure below. The step delay time must
cover the measurement time to keep the source output time constant.
The EasyEXPERT does not support the step delay time. It is available only for the
GP
IB remote mode.
9VWDUW
+ROGWLPH
0HDVXUHPHQWWLPH
'HOD\WLPH7G
6WHSGHOD\WLPH7VG
RQO\IRU5HPRWHPRGH
7G 7VG
7G 7VG
6RXUFHRXWSXWWLPH