On chip I/O transistors will differ from normal transistors in a number of ways. Much does depend upon the process. Generally...
larger than minimum L
W sized to meet drive requirements
larger contact to gate spacing
larger S/D overlap of contact
possibly no silicide
maybe thick gate ox
possibly double rows of contacts on S/D
On chip I/O transistors will differ from normal transistors in a number of ways. Much does depend upon the process. Generally...
larger than minimum L
W sized to meet drive requirements
larger contact to gate spacing
larger S/D overlap of contact
possibly no silicide
maybe thick gate ox
possibly double rows of contacts on S/D
Many thanks rangermad!
Now it is more clear to me that they are different from normal transistors.
In the literature, it is mentioned very briefly, these transistors have thicker gate oxide and higher breakdown voltage.