2022-09-25 12:19 Status: # Design Rule Types Due to manufacturing tolerances and accuracies - you need to adhere to design rules while laying out. ## Minimum Dimension Tolerances might give you funny shapes!  Shrinking - if too little, it will likely not function - might even disappear! Therefore minimum dimension specified. Depends on layer: e.g. Poly smaller than metal ## Minimum Spacing e.g. 2 polys side by side.  Minimum spacing rule - don't want them to be connected. Differs across layers. ## Alignment Alot of alignment needs to be correct before they work properly.  Crooked alignment - desired cross-section vs. manufactured:  Drain and source have been shorted! Min overlap of poly beyond active, active beyond poly, unrelated poly - min distance between the drawn poly and the active so they don't interact.  [^1] --- # References [^1]: [vr-4602-wk02-sc02-ruletypes](../../Spaces/University/ELEC4602%20–%20Microelectronics%20Design%20and%20Technology/Lectures/W2/vr-4602-wk02-sc02-ruletypes.mp4)