>>4438168>>4438171>>4438179>>4438184>>4438186>The only reason larger sensors cost more is because fewer are made.to expand on what the other anons said
the cost of a single chip basically has three parts (ignoring any tech licensing):
>1. development costs>2. raw manufacture cost>3. manufacture loss compensationfirst one is constant for a given design, other two decrease roughly by the area of the chip
third one increases by the area of the chip: errors are constant rate based on surface area of wafer, one error = useless chip
let's make up some numbers
say you manufacture 500k of a 10x10mm chip, 100 per wafer, that cost 5mil to develop and 5k per wafer to manufacture, at a failure rate of 1 error per wafer
minimum cost of each chip is then
(dev cost + (per-wafer cost * (chip count / chips per wafer))) / (chip count * (chips per wafer - bad chips per wafer) / chips per wafer) = 60.61 per chip
increase the chip size to 20x20mm and now you can fit a little less than a quarter of the count per wafer (square chip on round wafer); assuming 20 per this gives you 273.68 per chip
super rough approximation with unrealistic numbers but you get the idea
