可以类似带USB盘接口，内有比特币需要的各种信息，以及价值0.1BTC/1BTC 等可选。
感觉公司送礼可以高大上起来啊。

I know at least two companies who developed bitcoins. If you are interest in bitcoin I can forward your emails to them.

The higher process ( 28nm is higher than 40nm), the cheaper each chip gets and with lower power.

At current bitcoin price, the miners don't make any money, and the asic verdors should make some money ( I guess).

As for  scrypt or  x11 , I can ask around if anyone is making it.

谁有芯片面积大小和功耗大小？

这才知道芯片公司赚了大头吗？

The reverse is almost impossible. it's just too many transisters now.

Bitcoin mining algorithm is already out there, it only take a few engineers to implement the code.
(one for coding, one for backend, one for software)

The big money is in the fab mask, it's about 5M for 28nm, 1.5M for 40nm, 0.5M for 65nm.

If you only want to prove your idea, get 3 engineers to finish the chip (around 120k), and do it in a
40nm MPW(~ 120k )which gives your around 100 chips .

So  the minimal money would be around 250k to prove your idea in 40nm, if your chip is small and low-power,
you can raise 6-10M to do it again in 28nm/20nm/14 nm.


There are a lot of company in china which studied the algorithm and implemented in RTL code.
it would be much easier to just select one of those.