How to visualize what yu can not see.

Impossible? Almost. But some man have done just that. Think about silicon  CPU in your computer.

About 30 years ago Intel introduced the 036 CPU for desktop computers and workstations. That tiny slice of silicon had some features as small as one micro meter in width. Can you imagine how small one micro meter is?  A human hair is about a 50 micro melter in thickness. Think of a copper wire 50 times smaller.

But now Intel and others make silicon chips with traces as small as 22 nanometers. And they say then can go done to 10 nm and below.

Wikipedia has some articles about how semiconductor chips are made.

Start here:

https://en.wikipedia.org/wiki/Semiconductor_device_fabrication

Here is the copyrighted an image you will find there:

Next, watch a video on you tube:

How hey make Silicon Wafers and Computer Chips.

That is amazing!

 

 

 

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