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Jean Amédée Hoerni (September 26, 1924 - January 12, 1997) was a silicon transistor pioneer and a member of the 'traitorous eight'. He developed the planar process for manufacturing semiconductor devices such as transistors.

Biography[edit]

Hoerni was born on September 26, 1924 in Geneva, Switzerland.[1] He received a Doctor of Philosophy (Ph.D.) from the University of Cambridge and another Ph.D. from the University of Geneva.

In 1952, he moved to the United States to work at the California Institute of Technology, where he became acquainted with William Shockley, the "father of the transistor."

A few years later, Shockley recruited Hoerni to work with him at the newly founded Shockley Semiconductor Laboratory division of Beckman Instruments in Mountain View, California. But Shockley's strange behavior would compel the so-called 'traitorous eight': Hoerni, Julius Blank, Victor Grinich, Eugene Kleiner, Jay Last, Gordon Moore, Robert Noyce and Sheldon Roberts, to leave his laboratory and create the Fairchild Semiconductor corporation. At Fairchild Hoerni would go on to invent the planar process,[2][3] which allowed transistors to be created out of silicon rather than germanium.[4] The name "Silicon Valley" refers to this silicon.[5]

Along with the 'traitorous eight' alumni Jay Last and Sheldon Roberts, Hoerni founded Amelco (known now as Teledyne) in 1961.

In 1964, he founded Union Carbide Electronics, and in 1967 Intersil.

He was awarded the Edward Longstreth Medal from the Franklin Institute in 1969[6] and the McDowell Award in 1972.[1]

Hoerni died of myelofibrosis on January 12, 1997 in Seattle, Washington.[7][8]

Personal[edit]

He was married to Jennifer Wilson, and had three children: daughters Annie Blackwell, Susan Killham, son Michael, and five grandchildren. He had one brother, Marc Hoerni of Geneva.[8]

Philanthropy[edit]

An avid mountain climber, Hoerni often visited the Karakoram Mountains in Pakistan and was moved by the poverty of the Balti mountain people who lived there. He contributed the lion's share, $12,000, to Greg Mortenson's project to build a school in the remote village of Korphe, and later founded the Central Asia Institute with an endowment of $1 million to continue providing services for them after his death.[9][10] Hoerni named Greg Mortenson as the first Executive Director of the organization, which continues to build schools in Pakistan and Afghanistan.[11]

In December 2007, an article was published by Michael Riordan on Hoerni and his planar process in IEEE Spectrum. The author claimed that Jay Last pointed out that Hoerni had incredible stamina and could hike for hours on little food or water.[7]

References[edit]

  1. ^ a b Jean A. Hoerni - 1972 W. Wallace McDowell Award Recipient
  2. ^ US 3025589  Hoerni, J. A.: "Method of Manufacturing Semiconductor Devices” filed May 1, 1959
  3. ^ US 3064167  Hoerni, J. A.: "Semiconductor device" filed May 15, 1960
  4. ^ "The Accidental Entrepreneur", Gordon E. Moore, Engineering & Science, Summer 1994
  5. ^ "Jean Hoerni (American engineer)", Encyclopædia Britannicaonline
  6. ^ "Franklin Laureate Database - Edward Longstreth Medal 1969 Laureates". Franklin Institute. Retrieved November 16, 2011. 
  7. ^ a b Michael, Riordan (December 2007). "The Silicon Dioxide Solution: How physicist Jean Hoerni built the bridge from the transistor to the integrated circuit". IEEE Spectrum. IEEE. Retrieved November 27, 2012. 
  8. ^ a b "Jean A. Hoerni". SFGate.com. February 5, 1997. Retrieved November 27, 2012. 
  9. ^ Three Cups of Tea, chapter 5. (disk 2, tracks 16-18 of the audiobook version)
  10. ^ "A gift for an entire village-- A failed mountaineer becomes a philanthropist after a village without a school saves his life", Marilyn Gardner, Christian Science Monitor, September 12, 2006
  11. ^ "Central Asia Institute History", Central Asia Institute

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