Let's go inside an Intel 4004 microprocessor to see an individual transistor
Jul 24, 2017 - 0:13
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This podcast is drawn from the Virtual Lab presentations of WeCanFigureThisOut.org. The copyrighted material of this site was developed under funding from National Science Foundation CCLI, NIRT, MRSEC and NUE programs. This project is led by John C. Bean
This podcast is drawn from the Virtual Lab presentations of WeCanFigureThisOut.org. The copyrighted material of this site was developed under funding from National Science Foundation CCLI, NIRT, MRSEC and NUE programs. T...
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To make this transistor, first oxide then nitride layers are grown
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A shadow mask then exposes a photographic emulsion
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Exposed nitride is then etched away
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Oxygen reacts with the Si to grow more oxide
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By heating in silane, polycrystal Si is then grown
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A stripe is exposed in a second photographic emulsion
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Exposed polycrystal Si is etched away leaving the transistor gate
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