Licenciado en Ciencias, University Barcelona, 1955. Doctor of Science, University Madrid, 1958. Master of Science, Harvard University, 1958.
Doctor of Philosophy, Harvard University, 1959. Degree (honorary), Brown University. Doctor (honorary), University Autónoma de, Madrid, 1985.
Doctor (honorary), University Autónom de Barcelona, 1985. Doctor (honorary), University Regensburg, Germany, 1994. Doctor (honorary), Sherbrooke University of Canberra, 1994.
Doctor (honorary), University La Sapienza, Roma, 1995. Doctor (honorary), University Toulouse, 1998. Doctor (honorary), University Thessaloniki, 2001.
Doctor (honorary), Masaryk University, Brno, 2002. Doctor (honorary), Valencia University, 2004. Doctor (honorary), University La Laguna, 2006.
Member technical staff Radio Corporation of America Labs, Zurich, Switzerland, 1959-1961, Princeton, New Jersey, 1961-1964. Associate professor physics Brown University, Providence, 1964-1966, professor physics, 1966-1971. Director Max Planck Institute for Solid State Research, Stuttgart, Germany, 1971-2000, emeritus Germany, since 2000.
Member Medaglia A. Volta University Pavia, 1998, Doctor hockey club Cinvestav, Mexico, 2010. Adjunct professor University Stuttgart, since 1973, University Konstanz, since 1990. Lecturer Air New Zealand, 2001.
Member French National Committee for Evaluation Science Research, 1999—2001.
Fellow: Royal Society of Canada, Institute of Physics (London), American Physical Society (Frank Isakson prize 1984, John Wheatley award 1997, Outstanding Referee award 2008). Member: National Academy of Sciences of the United States (ordinary member), Academia dei Lincei Rome (elected foreign member 2008), International Union Pure and Applied Physics (chairman semiconductors commission 1996—2002), Royal Academy of Sciences of Spain (correspondent member), Mexico Academy of Sciences (correspondent), Academia Europaea, German Physical Society, European Physical Society, Academy of Sciences of Barcelona, Armed Forces Ioffe Institute (honorary).
Married Inge Hecht; children: Michael, Angela, Steven.