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It's not really "Stamped". It's more of a photographic process. My basic understanding is that they apply a photographic reactive chemical, expose it. From th
by swalsh 6y ago
It's not really "Stamped". It's more of a photographic process. My basic understanding is that they apply a photographic reactive chemical, expose it. From there they apply another chemical process to form an oxidation layer, and then use an acid process to "etch" away material creating channels of positively charged particles. Then they can apply a mask, and throw tiny amounts of metal which will become the gate.
- geerlingguy 6y agoThe process of photolithography [1] involves a lot of complex optics, and interestingly you find a lot of lens manufacturers involved in it since it involves a lot of steps where light (e.g. lasers in this case) gets passed through a set of very precise optics until it hits the wafer and etches in the correct pattern from a larger 'reference copy'. [1] https://en.wikipedia.org/wiki/Photolithography https://en.wikipedia.org/wiki/Photolithography
- baybal2 6y agoActually, the process of actually "stamping" ICs mechanically is being pursued to make IC production even more cheaper. https://en.m.wikipedia.org/wiki/Nanoimprint_lithography https://en.m.wikipedia.org/wiki/Nanoimprint_lithography