Retired materials sciences principal investigator Jack Washburn passed away on Oct. 26 at the age of 92. During his Ph.D. study at UC Berkeley, he served in the US Navy in the World War II. He returned to Berkeley after the war and joined the UC Berkeley as a professor in the Department of Materials Sciences and Engineering. While there he piloted research in materials properties, dislocations, and ion implantation semiconductors. He pioneered the application of the transmission electron microscopy of dislocations in semiconductor materials. He retired from teaching in 1981 but continued research at Berkeley Lab until 2002.