4156A Agilent Semiconductor Parameter Analyzer


Additional Features:

  • High-resolution/accuracy and wide range. I: 1 fA to 1 A (20 fA offset accuracy), V: 1 µV to 200 V
  • Fully-automated I-V sweep measurements with DC or pulse mode, expandable up to 6 SMUs
  • Synchronized stress/measure function, two high-voltage pulse generator units (±40 V)
  • Time-domain measurement: 60 µS variable intervals, up to 10,001 points
  • Easy to use: knob-sweep similar to curve tracer, automatic analysis functions
  • Automation: built-in HP Instrument BASIC, trigger I/O capability

The Agilent HP 4156A is the next generation in precision semiconductor parameter analyzers. You get the best digital sweep parameter analyzer plus a reliability tester, powerful failure-analysis tool, and automated incoming inspection station, all rolled into a single instrument.

This new family was explicitly designed to provide unprecedented accuracy and functionality for evaluating your sub-micron geometry devices. With one flexible instrument, you can improve your semi-conductor quality starting from material evaluation and device characterization all the way through final packaged part inspection and field failure analysis.

The Agilent HP 4156A offers four built-in source/monitor units (SMUs), two voltage source units (VSUs), and two voltage monitor units (VMUs). The Agilent HP 4156A extends current resolution to 1 fA and accuracy to 20 fA. The Agilent HP 4156A utilizes full-kelvin remote sensing on each SMU.

At any time, you can add the Agilent HP 41501A SMU and Pulse Generator Expander, which is supplied with a 0 V/1.6 A Ground Unit. The expander accepts two 100 mA/100 V SMUs or one 1 A/200 V SMU, and two specially- synchronized 40 V/200 mA/1 μs pulse generators.

Setup and Measurement
The Agilent HP 4156A can perform staircase and pulse sweep measurement, and sampling (time-domain) measurement using many measurement units, including units in the HP 41501A, without changing connections. Moreover, you can easily perform stress-measure cycling test for reliability evaluation such as hot carrier injection and flash EEPROM test.

Setup and measurement are made by setting up pages and filling in the blanks from front-panel keys, keyboard, or HP-IB (SCPI commands). You can also instantly measure and find setup conditions by using knob sweep capability, which is similar to curve tracer operation.

Display and Analysis
The measurement and analysis results are displayed on the color CRT, and you can superimpose stored graphics from four graphic memories for comparison. A number of powerful graphical analysis tools make it easy to analyze and extract many parameters such as hFE and Vth. Once you find the parameter extraction conditions, you can automatically get the parameter by using the automatic analysis function.

Output and Storage
Setup, measurement, and analysis data can be output via HP-IB or serial interface to a color plotter and printer. You can also save the data onto a 3-inch disk in MS-DOS or LIF format. Graphic (HP-GL or PCL) output file allows you to transfer graphics to desktop publishing software.

Repeating and Automating Tests
The Agilent HP Instrument BASIC controller built into the Agilent HP 4156A can construct an automatic measurement system using external instruments without a controller. The Agilent HP 4156A can be synchronized with external instruments by the versatile trigger I/O functions.

More Information
ManufacturerAgilent, HP, Keysight