Webinar Introduction
Electrical resistivity is a basic material property and is a very common electrical measurement. Specific resistivity measurement methods are used depending upon the type of material, whether conductor, insulator, or semiconductor. This webinar provides details on the various resistivity methods and techniques used to achieve optimal results.
Participants will learn the fundamentals of making resistivity measurements on bulk materials. The methods vary depending on if the material is a conductor, an insulator, or a semiconductor. Some of the specific methods include making four-wire resistance measurements of metals, volume and surface resistivity measurements of insulators, and four-point collinear probe and van der Pauw measurement methods of semiconductor materials. In addition to discussing these methods, measurements techniques that pertain to the method are also detailed. Some of the many techniques and sources of error discussed include electrostatic interference and shielding, leakage current and guarding, thermoelectric EMFs and offset compensation, and others. Along with using the proper method and techniques, the appropriate instrumentation must also be used to make the desired measurements.

Target Audience
This webinar is recommended for materials researchers, research labs, physicists, universities, and companies who need to test resistivity of their products (solar cell, plastics, paper, tires, semiconductor, etc.)
Mary Anne Tupta - Lead Applications Engineer

Mary Anne Tupta is a lead applications engineer at Keithley Instruments, Inc. in Cleveland, Ohio. Mary Anne has a Masters of Science in Physics and a Bachelor of Science in Physics/Electronic Engineering from John Carroll University in Cleveland, Ohio. She has been an engineer at Keithley for over 20 years.
Company Introduction
Keithley Instruments, Inc. designs, develops, manufactures and markets complex electronic instruments and systems geared to the specialized needs of electronics manufacturers for high-performance production testing, process monitoring, product development and research. The Company has approximately 500 products used to source, measure, connect, control or communicate direct current (DC), radio frequency (RF) or optical signals. Product offerings include integrated systems solutions, along with instruments and personal computer (PC) plug-in boards that can be used as system components or stand-alone solutions. The Company's customers are engineers, technicians and scientists in manufacturing, product development and research functions. Additional company and product information is available at www.keithley.com.
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