lecture_1_chex42

lecture_1_chex42 - Course Objective Course Objective ¾...

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Unformatted text preview: Course Objective Course Objective ¾ Review and practice fundamental chemical engineering concepts (mass, energy, and momentum transport coupled with heterogeneous and homogeneous reactions and thermodynamics). ¾ Apply these concepts to problems in unit operations for fabrication of integrated circuits and electronic and optoelectronic devices. ¾ Learn about the field of microelectronics processing, its history, and its future. Transistor and Integrated Circuits: History Transistor and Integrated Circuits: History ¾ 1906: Lee DeForest developed the triode in vacuum tube that could amplify signals. – “Killer Application” = transcontinental telephone service. – It worked but was unreliable, used and produced too much power. ¾ 1915: Coast-to-coast telephone system. ¾ 1920-30: Quantum mechanics ¾ 1930s: Mervin Kelly, Bell Labs Director of Research envisioned something made of semiconductors to replace the vacuum tube. ¾ 1940: Russel Ohl discovered p-n junction. ¾ 1945: Bill Shockley assembles solid state research team at Bell Labs ¾ 1946: ENIAC, the 1 st digital computer, uses 18,000 vacuum tubes Transistor and Integrated Circuits: History Transistor and Integrated Circuits: History ¾ 1947: Christmas Eve; Bill Shockley, John Bardeen & Walter Brattain invented the point contact transistor http://www.pbs.org/transistor/science/index.html Transistor and Integrated Circuits: History...
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This note was uploaded on 12/29/2011 for the course CHE 142 taught by Professor Ceweb during the Fall '09 term at UCSB.

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lecture_1_chex42 - Course Objective Course Objective ¾...

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