Quote from: blackarrow on September 09, 2014, 08:04:01 PM

Quote from: alfabitcoin on September 09, 2014, 06:36:10 PM

Quote from: Puppet on September 26, 2013, 09:39:56 AM

Quote from: blackarrow on September 26, 2013, 09:10:26 AM

We wish we would be able to do that but the silicon is not this cheap. The only way we could sell 2th @ $1000 would be to loose money on each miner "sold".

Care to give some more insights in to the cost structure?

For the asic, allow me to make a guestimate based on cointerra's specs.
3 100mm² dies in a package yields 502-720 GH /chip
Lets go with the low estimate gives 166GH per die.

A 300mm wafer yields ~600 10x10mm² candidates or 100TH (at 100% yield). AFAIK, processed 28nm wafer cost less than $4000 in volume. Low volume runs may add significantly to that, if you have to go through to an intermediary.
Let be generous and for easy math put it $10,000 per wafer if you include yield, slicing, packaging, handling,.. thats ~$100/TH.

Now thats only silicon cost, excluding NRE and of course there are other costs, like PCB, assembly, housing, cooling, PSU, etc, but I find it hard to understand how over time, you would not be able to sell at (much) less than $500/TH. Am I way off in my silicon cost estimate? Or what else is so expensive? PCBs?

So manufacturer price per asic chip is ~10$

How about packaging? And NRE?

Sure, NRE as stated is excluded, but slicing, packaging etc is not. still that can price up only a small amount.
Fact is that chips alone cost less then ~15$ ( with nre) and you had and have huge profit margin. Fur sure you can do a (partial) refund.
And if any third party made mistake then they should conpesate the future cost and not to be paid for mistakes over and over without any responsibility. You do have contracts with them dont you?
You just do not want to do a right thing and refund. Or name the third party involved so we can investigate ourselves.

Edit
And by all means, you would deserve such a huge profit margins if you delivered working miners on time or with slight delay.
Now is evident you are failed and still want to keep all that profit and giving nada in return.
If Iam wrong then please, provide some documents, inovices etc to back up your claims.