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Electrical and Computer Engineering Seminar: Optimum Logic Functions
Friday, February 9, 2007 - 2:00pm to Friday, February 9, 2007 - 3:00pm

The Department of Electrical and Computer Engineering (ECE) at PSU's Maseeh College of Engineering and Computer Science presents as part of the ECE507 Seminar Winter 2007 Series: Optimum Logic Functions.

Title: "Optimum Logic Functions"

Speaker: George Opsahl, Clearbrook Technology, Lake Oswego, Oregon

Date: Friday, February 9, 2007

Time: 2:00 - 3:00 p.m.

Location: BA, 190

This series is free and open to the public. For further information, contact the Department of Electrical and Computer Engineering, (503) 725-3806 or

For more information on upcoming seminars, please visit the Department Web site:


For about 60 years, semiconductors have worked reasonably well. Semiconductors formed the infrastructure for transistors and integrated circuits and that infrastructure defined the basic architecture of digital logic components, microprocessors, DSPs, FPGAs, and other sophisticated electronic circuits. However, as devices approach the size of a single atom the conceptual foundation of semiconductor architecture becomes less appropriate. Instead of allowing new infrastructural devices to define and limit the architecture of digital electronic systems, this presentation starts from scratch and proposes to define the basic architecture before defining the infrastructure. The presentation will describe investigations into possible alternative architectures and will discuss the properties and the improvements of these alternatives when compared to the current technology.

Speaker Biography

George Opsahl received a M.S. in Electrical Engineering from the University of Iowa and an MBA from the University of Portland. As a graduate student George explored architectures that efficiently (minimum number of logic blocks, minimum propagation time, and minimum amount of interconnect) generate digital functions. His professional work in industry began with development of large scale computer systems for computationally intensive problems, large communications systems, and industrial computing applications. Subsequently, George has developed fiber optic bar code systems as well as being part of teams that developed complex test and measurement systems and models for simulation. Currently, he is continuing research on optimum logic functions and is currently creating simulator specific models for digital signal integrity and EMC simulation.