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- 41
Function Details
Bias Hold Function
Setup method This function can be set by using the Advanced Setup window.
• Bias hold after measurement
Set the function ON (enable) or OFF (disable, default setting).
• Output value after measurement
Select the bias output value START (default) or
STOP fo
r the I/V or C-V sweep
measurement, or BASE or SOURCE (default) for the sampling measurement.
This is invalid for the VAR2, CONST, and constant source for C-V Sweep.
Table 7-6 SPGU Channel Output after Execution when Bias Hold is ON
SPGU output
op
eration mod
e
SPGU output
FREE RUN Continues the pulse output in the VPULSE mode or the
sequence outpu
t in the ALWG mode.
SPGU trigger reset is performed at the beginning of the
simultaneou
s sampling measurement.
COUNT Continues the base voltage output in the VPULSE mode
or the in
itial voltage output in the ALWG mode.
SPGU channel initialization is performed at the beginning
of the next measu
rement.
DURATION