After inventing the EPROM, Frohman left Intel to teach electrical engineering at the University of Science and Technology in Kumasi, Ghana. He returned to Intel in 1973, but his long-term vision was to return to Israel to create a center of high-tech research there.[https://archive.is/20130119135136/http://news.com.com/A+culture+of+survival+drives+growth+-+page+2/2009-1008_3-6102135-2.html?tag=st.next] In 1974, he helped Intel establish a small chip design center in Haifa—Intel’s first outside the United States. On his return to Israel, Frohman taught at the School of Applied Sciences at Hebrew University of Jerusalem and worked as a consultant to Intel on the side. In 1985, after negotiations with the Israeli government on the establishment of a semiconductor plant in Jerusalem, Intel’s first outside the United States, he left Hebrew University to become general manager of Intel Israel.