The Keysight Agilent 4156B is a Precision Semiconductor Parameter Analyzer designed for highly accurate device characterization. It features four built-in High-Resolution Source/Monitor Units (HRSMUs), two Voltage Source Units (VSUs), and two Voltage Monitor Units (VMUs), making it an industry-standard instrument for evaluating semiconductor device parameters down to fA and µV resolutions.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (HP-IB), Parallel (Centronics), External I/O |
| Display | 8.4-inch TFT color LCD |
| Recommended Calibration Cycle | 1 year |
Physical
| Parameter | Value |
|---|---|
| Power Supply | 90 V to 264 V AC, 47 Hz to 63 Hz, 450 VA maximum |
| Operating Temperature | 10 to 40 °C |
| Dimensions (W×H×D) | 426 mm × 235 mm × 524 mm |
| Weight | 21 kg |
SMU Performance
| Parameter | Value |
|---|---|
| Number of SMUs | 4 |
| SMU Type | HRSMU (High-Resolution Source/Monitor Unit) |
| SMU Maximum Voltage Range | ±100 V |
| SMU Maximum Current Range | ±100 mA |
| SMU Current Measurement Resolution | 1 fA |
| SMU Voltage Measurement Resolution | 2 µV |
| SMU Voltage Output Ranges | 2 V, 20 V, 100 V |
| SMU Current Output Ranges | 10 pA, 100 pA, 1 nA, 10 nA, 100 nA, 1 µA, 10 µA, 100 µA, 1 mA, 10 mA, 100 mA |
VSU Performance
| Parameter | Value |
|---|---|
| Number of VSUs | 2 |
| VSU Output Voltage Range | ±20 V |
| VSU Output Voltage Resolution | 20 mV |
| VSU Maximum Output Current | 100 mA |
VMU Performance
| Parameter | Value |
|---|---|
| Number of VMUs | 2 |
| VMU Measurement Voltage Range | ±20 V |
| VMU Maximum Resolution | 0.2 µV |
| VMU Measurement Ranges | 2 V, 20 V |
| VMU Input Impedance | ≥ 10 GΩ |
Measurement Capabilities
| Parameter | Value |
|---|---|
| Measurement Sweep Modes | Linear, logarithmic, and feedback |
| Maximum Measurement Channels | 8 (using 4 SMUs, 2 VSUs, 2 VMUs) |
| Maximum Sweep Points | 1001 |
| Maximum Sampling Points | 10001 |
| Minimum Sampling Interval | 60 µs |
System and Hardware
| Parameter | Value |
|---|---|
| Floppy Disk Drive | 3.5-inch (1.44 MB and 720 KB formats) |
| Display Resolution | 640 × 480 pixels |
| Compatible Expander Unit | Agilent 41501A or 41501B |
General Specifications
| Parameter | Value |
|---|---|
| Cooling Method | Forced air cooling with internal fan |
| Warm-up Time | 40 minutes |
| Operating Humidity Range | 20% to 70% RH (non-condensing) |
Ground Unit (GNDU)
| Parameter | Value |
|---|---|
| GNDU Maximum Sink Current | 1.6 A |
| GNDU Output Voltage | 0 V ± 100 μV |
| GNDU Connector Type | Triaxial |
High-Resolution SMU (HRSMU)
| Parameter | Value |
|---|---|
| HRSMU Maximum Power | 2 W |
| HRSMU Connector Type | Triaxial |
Voltage Source Unit (VSU)
| Parameter | Value |
|---|---|
| VSU Connector Type | BNC |
Voltage Monitor Unit (VMU)
| Parameter | Value |
|---|---|
| VMU Connector Type | BNC |
| VMU Differential Measurement Mode | Supported (using VMU1 and VMU2) |
System & Control
| Parameter | Value |
|---|---|
| Internal Controller | HP Instrument BASIC (IBASIC) |
| Hardcopy Output Formats | HP-GL, PCL, EPSON |
Power
| Parameter | Value |
|---|---|
| Line Voltage | 90 V to 264 V (automatic selection) |
| Maximum Power Consumption | 450 VA |
Inputs & Outputs
| Parameter | Value |
|---|---|
| Trigger I/O Ports | BNC (Trigger In, Trigger Out) |
| GPIB Ports Configuration | 1x System Control, 1x External I/O |
| Interlock Connector | 6-pin circular connector |
| R-Box Control Port | Dedicated connector for 16440A Selector or 16441A R-Box |
Controller & Software
| Parameter | Value |
|---|---|
| Built-in Programming Language | Instrument BASIC (IBASIC) |
Performance
| Parameter | Value |
|---|---|
| Time Stamp Resolution | 100 μs |
Technology
Semiconductor Parameter Analysis
Applications
Semiconductor Device Characterization and Parametric Testing
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