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PODCAST · technology

Making an Integrated Circuit

This podcast is drawn from the "Virtual Lab" of WeCanFigureThisOut.org. This Virtual Lab uses 3D virtual reality animations to explain electronics, microelectronics and nanotechnology. This podcast explains how the transistors of an integrated circuit are made.

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  1. 18

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

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  2. 17

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

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  3. 16

    A shadow mask then exposes a photographic emulsion

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  4. 15

    Exposed nitride is then etched away

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  5. 14

    Oxygen reacts with the Si to grow more oxide

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  6. 13

    By heating in silane, polycrystal Si is then grown

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  7. 12

    A stripe is exposed in a second photographic emulsion

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  8. 11

    Exposed polycrystal Si is etched away leaving the transistor gate

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  9. 10

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

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  10. 9

    Heating in oxygen grows an insulating coat on the gate

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  11. 8

    A third photographic emulsion defines windows above the source and drain

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  12. 7

    Openings are then etched in the exposed oxide

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  13. 6

    Metal is sprayed on to the surface

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  14. 5

    A fourth photographic emulsion is patterned

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  15. 4

    Unwanted metal is etched away completing the transistor

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  16. 3

    And finally, here is the circuit symbol for the transistor

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  17. 2

    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

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  18. 1

    All of the scenes together

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ABOUT THIS SHOW

This podcast is drawn from the "Virtual Lab" of WeCanFigureThisOut.org. This Virtual Lab uses 3D virtual reality animations to explain electronics, microelectronics and nanotechnology. This podcast explains how the transistors of an integrated circuit are made.

HOSTED BY

John C. Bean - WeCanFigureThisOut.org

CATEGORIES

technology

Frequently Asked Questions

How many episodes does Making an Integrated Circuit have?

Making an Integrated Circuit currently has 18 episodes available on PodParley. New episodes are automatically indexed when they're published to the podcast feed.

What is Making an Integrated Circuit about?

This podcast is drawn from the "Virtual Lab" of WeCanFigureThisOut.org. This Virtual Lab uses 3D virtual reality animations to explain electronics, microelectronics and nanotechnology. This podcast explains how the transistors of an integrated circuit are made.

How often does Making an Integrated Circuit release new episodes?

Making an Integrated Circuit has 18 episodes. Check the episode list to see recent publication dates and frequency.

Where can I listen to Making an Integrated Circuit?

You can listen to Making an Integrated Circuit on PodParley by clicking any episode. We provide an embedded audio player for direct listening, and you can also subscribe via your preferred podcast app using the RSS feed.

Who hosts Making an Integrated Circuit?

Making an Integrated Circuit is created and hosted by John C. Bean - WeCanFigureThisOut.org.
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