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- 34 Agilent B1500 User’s Guide, Edition 7
Function Details
SPGU Module
ALWG Operation Mode
In the ALWG mode (arbitrary linear waveform generator operation mode), SPGU
can output an arbitrary linear waveform voltage as shown in Figure 7-19. The
waveform is the voltage pattern sequence specified by the pattern data and the
sequence data, which
can be created by using the Define ALWG Waveform Window
(p. 5-64).
For a summary of source output operation in sweep or sampling measurement mode,
see “Pulse O
utput Operation Summary” on page 7-30. One sequence output will be
handled as same as one pulse output.
Pattern data Specifies all of the voltage patterns set to a channel. A pattern consists of some
v
ector da
ta. A vector data is defined by the output level and the time data.
• Number of patterns: maximum 512 for a channel
• Number of vector data: maximum 1024-N (N: number of patterns) for defining
all patterns to
a channel
• Output level: 0 to ± 40 V (open load, 1 mV resolution)
• Time data (incremental time): 10 ns to 671.088630 ms (10 ns resolution)
Sequence data Specifies the output channel, the output
pattern, the repeat count of the pattern, and
the output sequence of patterns applied in a single sequence.
• Repeat count of a pattern: 1,048,576
• Number of patterns in a sequence: maximum 512
Figure 7-19 ALWG Output Example
SPGU1
SPGU2
Start
Pattern2
Pattern2
Pattern1
Pattern1
Pattern2
Pattern2
Pattern1
Pattern1
initial value
initial value
initial value
initial value
1 sequence
Pattern1
setup change (50 ns)
SPGU2 pulse switch
(normally open)
0: Open
1: Close
0
1
1
1
1
1
1
0
0
1
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
1
1
1
1
1
1
1
1
0
1
1
1
1
1
0
Pattern1