We will probably be unable to settle this in a satisfactory manner.
Let me summarize the situation:
From the own words of the industry, the costs for CMOS chips are rather high and the word is spreading that those are like $30/300/3000 or $50/500/5000 for APS-C/FF/MF. But all sources are vague or by spoken word.
From the only source which we can probe and which is public (the one I provided above):
IC Knowledge - Wafer Costs
we learn, however, that an
entire 300mm wafer is only
$2500 to make!
Of course, you have to add for yield, testing, cutting, packaging, development depreciation, reticle depreciation and seller's margins. What I tried to do in my above posts. And what would still lead to a much lower cost estimate.
The purpose of ICKnowledge is to make the mysterious costs in semiconductor industry transparent for competitors and prospective buyers (purchase of their cost model is $2000 per copy!). Which means that it must be standard practice to obfuscate those costs.
The only logical conclusion seems to be this: semiconductor industry has obfuscated costs of (large) CMOS chips to the point where user's of (large) CMOS chips can ask high market prices. And nobody on the vendor side of things can possibly have an interest to make the true costs transparent. Including semiconductor or camera makers.
Which is why it is our (the consumer's) task to make these costs as transparent as possible and insist to get the products which we actually already should get for the money we pay anyway.
Any help in this mission will be appreciated.
As is providing a source
which can be probed that the true costs have been underestimated by me. But we need hard facts.
To say it again: The word as it is spreading means that an MF chip is twice as expensive as an entire 300mm wafer!! Something goes wrong here...