Rolled Transformers (image) University of Illinois at Urbana-Champaign Share Print E-Mail Caption Illinois engineers roll toward smaller, more efficient radio frequency transformers that take 10 to 100 times less space on a microchip. Credit Wen Huang Usage Restrictions Image may be used in stories related to this press release. Credit is require. Image courtesy Wen Huang. 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.