Full Member level 3
I recently have a request to design high-voltage analog ICs (Supply voltage at +5 and -70 Volt). I don't have much experience in this. Particularly, can I use voltage below the substrate voltage (substrate at ground potential)? What are the design rules regarding transistor sizing, width of metal layer tracks, etc? Anyone has experience in this? Anyone can recommend any books on the matter? Anything you can provide is much appreciated.