Let's go inside an Intel 4004 microprocessor to see an individual transistor
Jul 24, 2017 - 0:13
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By heating in silane, polycrystal Si is then grown
By heating in silane, polycrystal Si is then grown is an episode from Making an Integrated Circuit by John C. Bean - WeCanFigureThisOut.org. This technology episode is made for listeners who follow Making an Integrated C...
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By heating in silane, polycrystal Si is then grown is an episode from Making an Integrated Circuit by John C. Bean - WeCanFigureThisOut.org. This technology episode is made for listeners who follow Making an Integrated Circuit and want the...
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Published Jul 24, 2017, 0:04 long, audio available.
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To make this transistor, first oxide then nitride layers are grown
Jul 24, 2017 - 0:11
A shadow mask then exposes a photographic emulsion
Jul 24, 2017 - 0:12
Exposed nitride is then etched away
Jul 24, 2017 - 0:07
Oxygen reacts with the Si to grow more oxide
Jul 24, 2017 - 0:12
A stripe is exposed in a second photographic emulsion
Jul 24, 2017 - 0:10
Exposed polycrystal Si is etched away leaving the transistor gate
Jul 24, 2017 - 0:09
Phosphorus ions then penetrate thin oxide to create the source and drain
Jul 24, 2017 - 0:12