Making an Integrated Circuit | Podcast on Podbay

Making an Integrated Circuit

Making an Integrated Circuit

John C. Bean - WeCanFigureThisOut.org

Making the tranistors of an integrated circuit in virtual reality

Let's go inside an Intel 4004 microprocessor to see an individual transistor

Let's go inside an Intel 4004 microprocessor to see an individual transistor

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Jul 24, 2017

13 sec

To make this transistor, first oxide then nitride layers are grown

To make this transistor, first oxide then nitride layers are grown

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Jul 24, 2017

11 sec

A shadow mask then exposes a photographic emulsion

A shadow mask then exposes a photographic emulsion

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Jul 24, 2017

12 sec

Exposed nitride is then etched away

Exposed nitride is then etched away

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Jul 24, 2017

7 sec

Oxygen reacts with the Si to grow more oxide

Oxygen reacts with the Si to grow more oxide

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Jul 24, 2017

12 sec

By heating in silane, polycrystal Si is then grown

By heating in silane, polycrystal Si is then grown

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Jul 24, 2017

4 sec

A stripe is exposed in a second photographic emulsion

A stripe is exposed in a second photographic emulsion

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Jul 24, 2017

10 sec

Exposed polycrystal Si is etched away leaving the transistor gate

Exposed polycrystal Si is etched away leaving the transistor gate

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Jul 24, 2017

9 sec

Phosphorus ions then penetrate thin oxide to create the source and drain

Phosphorus ions then penetrate thin oxide to create the source and drain

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Jul 24, 2017

12 sec

Heating in oxygen grows an insulating coat on the gate

Heating in oxygen grows an insulating coat on the gate

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Jul 24, 2017

6 sec

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