[2] She and her husband Earl soon moved to Philadelphia, where she worked for International Resistance Co. as a research engineer before being promoted to head of process development.
Her teaching seminars, her publications and patents made lasting contributions to advancing the development and implementation of thin film technology.
[2] At her retirement in 1990, she was the Head of Thin Film Laboratory at David Sarnoff Research Center in Penns Neck, where she worked for 28 years.
[3] Dorothy Hoffman was an active member of the Society of Women Engineers (SWE) at a local and national levels, serving on their board of trustees from 1980 to 1989.
In 2002, the American Vacuum Society established the Dorothy M. and Earl S. Hoffman student award "to recognize and encourage excellence in continuing graduate studies in the sciences and technologies of interest to AVS.