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Electronic Measurement

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Do I need a wafer prober with a fully guarded chuck for use with my Keysight 4155A/B/C or Keysight 4156A/B/C?
It depends upon the type of measurements you plan to make on your wafer prober...

FAQ 2003-06-13

What is a Kelvin measurement?
A Kelvin measurement is a 4 terminal measurement. Two of the terminals are used to source and sink current. The other two terminals are used to measure voltage...

FAQ 2003-06-13

What are the differences between the Keysight 4155A/B/C and the Keysight 4156A/B/C?
Accuracy is increased from 3pA (Keysight 4155A/B/C) to 20fA (Keysight 4156A/B/C). The Keysight 4156A/B/C SMUs (Source Monitor Units) are designed with low noise inputs (+/- 3fA typical)...

FAQ 2003-06-13

How can I use a power supply without pin A6 (e.g. Keysight E361XA) with the Keysight 4155A/B/C or Keysight 4156A/B/C?
All new Keysight E361XA power supplies will not have terminal A6. Click the link above to learn which connections to use.

FAQ 2003-06-13

How do I connect the Keysight 4155A/B/C or Keysight 4156A/B/C to coaxial probes?
Click the above link for details.

FAQ 2003-06-13

How is the Keysight 4142B different from the Keysight 4155C and 4156C?
The key difference between the Keysight 4142B and the Keysight 4155C/4156C is that the Keysight 4142B lacks front panel control.

FAQ 2003-06-13

What hardware do I need to integrate low-level IV and CV measurements?
For making IV measurements, Keysight recommends either the Keysight 4155C or the 4156C Parameter Analyzer...

FAQ 2003-06-13

The Keysight 4156A/B/C noise level is over 100fA, what am I doing wrong?
Most likely, the current measurement range is limited to 1nA or higher. Make sure the range is set to AUTO...

FAQ 2003-06-13

How do I test Flash memory cells using the Keysight 4155A/B/C or Keysight 4156A/B/C?
For pulse characterizations during read and write modes, the Keysight 41501A/B with PGUs is recommended. For life testing of Flash cells to 1 million or more cycles, the Keysight 16440A SMU/PGU Selector is required...

FAQ 2003-06-13

Can I use the Keysight 4155A/B/C and Keysight 4156A/B/C to make time domain measurements?
Yes. The time domain features are called time SAMPLING measurements in the Keysight 4155A/B/C and Keysight 4156A/B/C...

FAQ 2003-06-13

How do I read the fault log of the Keysight 4155A/B/C or Keysight 4156A/B/C?
Press the "System" key on the front of the instrument. Press the "Calib/Diag" softkey at the bottom of the display. Press the "Green" key on the front of the instrument. Press the rightmost softkey at the bottom of the display.

FAQ 2003-06-13

Can I hookup Keysight 4155A/B/C and Keysight 4156A/B/C SMUs in series or parallel to double the output?
Yes, you can double the voltage to 200V or current to 200mA. See Module 2 of the Self-Paced Training Manual

FAQ 2003-06-13

My Keysight 4155A/B/C or Keysight 4156A/B/C pulsed measurements are not the width I specified, why?
When you set an SMU to Vpulse or Ipulse mode, it assumes you are using FIXED ranging and SHORT integration time. With short pulse widths there is not enough time to AUTO range or make LONG integration measurements...

FAQ 2003-06-13

What are the CV measurement capabilities of the 4140B, 4280A, and 4284A?
Click the above link for details.

FAQ 2003-06-13

How do I connect a Centronics (parallel port) printer to my Keysight 4155A or Keysight 4156A?
By using an inexpensive converter, you can connect parallel printers directly to the buffered serial port of the Keysight 4155A/4156A.

FAQ 2003-06-13

How do I find my Keysight 4155A/B/C or Keysight 4156A/B/C firmware revision?
Click the above link for details.

FAQ 2003-06-13

What 4284A configuration do I need to make semiconductor CV measurements?
For semiconductor CV measurements, you must order option 001 (Power Amplifier/DC BIAS) and option 006 (2m/4m Cable Length Operation)...

FAQ 2003-06-13

Why do my Keysight 4156A/B IV sweeps saturate around 10mA?
You could be using the SMU SENSE lines instead of the SMU FORCE lines. Check your cable connections to the SMUs. With single triax cable connections it is easy to reverse the connections...

FAQ 2003-06-13

What is the Keysight 4155A/4155B/4155C and Keysight 4156A/4156B/4156C interlock feature?
Click the above link for details.

FAQ 2003-06-13

When should I use Kelvin Triaxial cables?
The Keysight 4156A/B Kelvin Triax cables are ideal for use with a low-level analytical prober using manual probe positioners. Specify a Kelvin Triax interface when purchasing your prober...

FAQ 2003-06-13

Which versions of the 4062 are supported systems?
Click the above link to view the status of the 4062 family.

FAQ 2003-06-13

Are Keysight 4145B setup files compatible with the Keysight 4155A/B/C or Keysight 4156A/B/C?
Yes, but check your 4145B disk format. If it is a 1.44MB disk (two sensing holes), the 4155A/B/C or 4156A/B/C thinks it is the older 750KB format. When reading the setup files, a format error occurs. Place cellophane tape over the media density ho...

FAQ 2003-06-13

What is the minimum number of Source Monitor Units (SMUs) recommended for parametric test?
Since a MOSFET is a 4 terminal device (Source, Gate, Drain, and Bulk), the minimum number of SMUs recommended for parametric test is four...

FAQ 2003-06-13

Why do the Keysight 4155 and 4156 source measurement units (SMUs) use triaxial cables?
The Keysight 4155A/B/C and Keysight 4156A/B/C are designed for low-current measurement...

FAQ 2003-06-13

Is IC-MS a supported product?
IC-MS was discontinued on September 1, 1998. It is under support until August 31, 2003...

FAQ 2003-06-13

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