What This Document Is
This is a detailed laboratory experiment guide for characterizing Metal-Oxide-Semiconductor (MOS) devices, specifically n-channel MOSFETs. Developed for the Microelectronic Devices and Circuits course (ELENG 105) at the University of California, Berkeley, this resource provides a practical, hands-on approach to understanding the fundamental behavior of these critical semiconductor components. It’s designed to bridge the gap between theoretical concepts and real-world measurements.
Why This Document Matters
This experiment guide is essential for students enrolled in microelectronics courses seeking to solidify their understanding of MOS device physics. It’s particularly valuable when you’re ready to move beyond simulations and begin working with actual hardware. It will be useful for completing lab assignments, preparing for exams, and building a strong foundation for more advanced coursework in analog and digital circuit design. Students will benefit from the detailed procedures and the opportunity to compare experimental results with industry-standard analysis tools.
Topics Covered
* MOSFET Regions of Operation (Triode, Saturation)
* Extraction of Key Device Parameters
* Drain Current (Id) vs. Drain-Source Voltage (Vds) Characteristics
* Drain Current (Id) vs. Gate-Source Voltage (Vgs) Characteristics
* SPICE Modeling and Simulation of MOSFETs
* Comparison of Experimental Data with SPICE Simulations
* Use of Parameter Analyzers and Semiconductor Measurement Units (SMUs)
What This Document Provides
* A comprehensive experimental procedure for characterizing an n-channel MOSFET.
* Detailed instructions for setting up and using laboratory equipment.
* Guidance on interpreting experimental data and relating it to theoretical concepts.
* Preparation steps for SPICE simulations to validate experimental findings.
* Figures illustrating circuit configurations and expected results.
* A prelab section designed to reinforce core concepts before entering the lab.
