Bachelor of Science, Stanford University, 1962; Doctor of Philosophy in Applied Physics, Stanford University, 1970; Master of Arts, Wesleyan University, Middletown, Connecticut, 1966.
National Science Foundation research assistant materials science department, Stanford University, 1961; lectr in physics, United States Peace Corps, Kathmandu, Nepal, 1962-1964; research assistant, Wesleyan University, 1964-1966; research assistant, Stanford Electronics Laboratory, 1966-1970; research associate, Stanford Electronics Laboratory, 1970-1971; research staff, Solid State Physics Laboratory, Swiss Federal Institute Technology, 1971-1975; physicist, National Institute Standards and Technology (formerly National Bur Standards), Gaithersburg, Maryland., since 1975.
Trustee Unitarian Church of Rockville, Maryland., 1994-1996. Executive Committee Materials Physics Division, American Physical Society, since 1998. Fellow American Physical Society, American Vacuum Society (surface science Executive Committee 1984-1988, Gaede-Langmuir prize 1994).
Married BarbaraHarrison, November 19, 1988. Children: Jed, Maia, Stephen.