One does not simply "copy a computer chip". Doing that is practically impossible and requires extremely specialized equipment in order to figure out the exact circuitry of the chip and then you have to fab the chip, which is expensive and time consuming.
Thank you so much for your reply @DuddlyDoRight, what do you mean by "buy the IP"?
IP means Intellectual Property. He means your only option is to literally buy the designs for the chip from the current owners of the designs. That's not likely to happen.
as well as "Just hire an FPGA dev"?
Hire someone who knows how to program Field Programmable Gate Arrays, devices similar to Application Specific Integrated Circuits (i.e. ASIC chips) but a bit more general purpose.
No, we don't have the blueprint of the chip @Senior.bla. But the person who wants this job done is a co-developer of the chip but his business partner took all the rights of the chip. and he felt that this was unfair for him and he wants to become independent because of his partner's business practices which was unfortunate.
You and him will be violating copyright laws if you attempt to copy the chip exactly (or even similarly) and attempt to sell it as a product.
Given that you have exhibited a clear lack of knowledge, I suggest you first research how chip production is done and how developing Integrated Circuits (i.e. chips) works before you try copying someone else's chip (which is illegal) or attempt to make a business selling computer chips.
