Silicon is purified to around 99.9999999%! Then it is sliced into very thin round sheets called wafers.

The type used in the Skywater 130nm process is doped to become p-type.

Here’s a great video about how silicon wafers are made.

And these great videos are about the birth of the Japanese semiconductor industry. Jump to about 12 minutes in to see how they pull the silicon ingot out of the molten material.

After the wafers are ready, they can be patterned using the photolithographic process, using a series of masks.

Course feedback

The course itself is very self sufficient, and on top of that you have the community behind it. People are happy to help and review your work. I would definitely recommend the course!

Louis Ledoux (digital course)