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

7- 46 Agilent B1500 User’s Guide, Edition 7
Function Details
Atto Sense and Switch Unit
Atto Sense and Switch Unit
The Atto Sense and Switch Unit (ASU) can be used with the high resolution SMU
(HRSMU). Using the ASU permits use of the 1 pA range. Also the ASU can switch
the measurement resources, HRSMU or an instrument connected to the AUX input
connectors. The ASU can configure two setups shown in Figure 7-22. When the
B1500A is turned on, the ASU will be the Setup 1 condition. See “To Connect
ASU” on page 3-17 to install the ASU properly.
The ASU has input connectors, one triaxial an
d two coaxial. The triaxial connector
must be connected to the HRSMU Force, and the coaxial connectors must be
connected to an instrument. Also the ASU has the control connector to be connected
to the HRSMU by using the ASU cable.
Figure 7-22 ASU Input/Output Connections
The ASU has the following status indicators (LED).
SMU The HRSMU can be used (Setup 1).
AUX The AUX instrument can be used (Setup 2).
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