FinFET Array (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption An array fin transistors made by the MacEtch method. The fins are tall and thin, with a higher aspect ratio and smoother sides than other methods can produce. Credit Yi Song, University of Illinois Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.