Willis Whitfield in 2008 (IMAGE) DOE/Sandia National Laboratories Caption Former Sandia National Laboratories physicist Willis Whitfield will be honored posthumously by the National Inventors Hall of Fame in May for his cleanroom invention. In 2008, Whitfield posed outside a cleanroom at Sandia's Microsystems Engineering Sciences & Applications (MESA) complex. Credit Photo by Randy Montoya Usage Restrictions None License Licensed content 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.