People don't build ASIC miners. Companies do. People just buy them.
Really?
Companies hire people to build and manufacture the chips for the company so they can sell them.
Who do you think companies design, research and test their chips?
+1 correct thanks
I could argue all day about this. But this is clearly someone who is in over their head. And asking about chips from a known scam company (BlackArrow) boldly illustrates this.