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Tim Edwards

01/07/2021, 2:49 PM
@User: If you flip the wells like that, you no longer have transistors, but varactors. Your source and drain become tied to the bulk underneath.
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promach

01/08/2021, 3:05 AM
@Tim Edwards that is clearly FDSOI transistor , may I know why you say that it is a varactor? https://www.st.com/content/st_com/en/about/innovation---technology/FD-SOI/learn-more-about-fd-soi.html
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Tim Edwards

01/08/2021, 3:41 AM
Since this slack channel is devoted to the sky130 process, I was not thinking of FDSOI.