Frank Wanlass

Frank Marion Wanlass
Born	(1933-05-17)17 May 1933 Thatcher, AZ
Died	9 September 2010(2010-09-09) (aged 77) Santa Clara, California
Alma mater	University of Utah
Known for	Complementary metal–oxide–semiconductor
Scientific career
Fields	Engineering and Physics

Frank Marion Wanlass (May 17, 1933, in Thatcher, AZ – September 9, 2010, in Santa Clara, California) was an American electrical engineer. He is best known for inventing CMOS (complementary MOS) logic with Chih-Tang Sah in 1963. CMOS has since become the standard semiconductor device fabrication process for MOSFETs (metal–oxide–semiconductor field-effect transistors).^[1]