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Electronic Measurement

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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

Why does my Keysight 4155A/B/C or Keysight 4156A/B/C show spikes in my GM curve when using DIFF or DELTA function?
You may see notches or spikes in MOSFET GM curves with small Vg step size (<50mV)...

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

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 get a Keysight 4155A/B/C or Keysight 4156A/B/C screen display into text editor or presentation software?
To get a screen display into text editor compatible format, we strongly recommend the purchase of graphics manipulation software such as IMSI's HiJaaK® Pro (US: 1-800-833-8082)...

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

Why does the Keysight 4156A/B/C default to Keysight 4155A/B/C accuracy at boot up?
The Keysight 4156A/B/C can trade off speed vs. accuracy. The Keysight 4156A/B/C boots up optimized for speed. It does this by limiting the lowest measurement range to 1nA (lowest Keysight 4155A/B/C current range)...

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 can I use my Keysight 4072A to make high-frequency ring oscillator measurements?
You can use a spectrum analyzer and the high-frequency (HF) matrix of the Keysight 4072A to make ring oscillator 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

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

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

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

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

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

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

FAQ 2003-06-13

How do I connect a networked printer to the Keysight 4155B or Keysight 4156B?
You need a server on which a Line Printer Daemon (LPD) is running (anywhere within the gateway)...

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

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

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

What is SPECS?
SPECS (Semiconductor Process Evaluation Core Software) is a semiconductor parametric test shell that runs on the Keysight 4072A, 4072B, 4073A and 4073B Parametric Test Systems...

FAQ 2003-06-13

Can I force currents or voltages beyond 1A or 200V using the Keysight 4155A/B/C and Keysight 4156A/B/C?
You can force currents or voltages beyond 1A or 200V by adding an external power supply. You only need a simple front panel setup file...

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

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 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

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