Earlier quoted context omitted.
In most manufacturing, you have a prototype hall or floor where you have somewhat more general purpose/flexible machines with a lot of manual intervention to make small quantities of prototypes, and factories with automated machines set up to make the exact parts you need for your full production. This was always my experience in electronics - you, as the development engineer, set up small-scale production (going fro…
Thank you for your sincere and informed response. I understand that EEs create countless prototypes over the course of the development of a product, and that development PCBs need not (especially for debugging purposes) bear any physical resemblance to the finished product. What is impressive to me is that Toshiba could: Redesign and test a PCB Set up a manufacturing process for pick and place etc Create an injection…
1) The final development PCBs (the engineering validation articles) are actually identical to the production PCBs. Your final EV revision becomes revision 0 in production; only the manufacturing method changes. So the prototype floor definitely has the ability to make production-quality PCBs.
2) The design change may or may not be complicated. Adding a port typically refers to a port already supported by the chipset; so you add a ribbon connector for it and change the layout only.
3) You generally wouldn't have full pick-and-place automation for making prototypes. There are manual tools (sort of semi-automated) for making a few PCBs. A large company is making prototype PCBs all the time. They know how to do it, and they don't stop manufacturing for it.
4) For the case, the easiest would be to rework an existing case (add a slot). Creating custom injection molds is kind of a big deal. Then again, if Fujitsu does that in house, maybe not that big. Don't know.
5) The expense would not involve a cash outlay, but it would definitely involve diverting engineering, manufacturing and sales resources to even communicate and deliver this whole thing, let alone make it. The engineers may have been pulled off something, or may have been waiting for work; business hasn't been that great for most manufacturers, if you haven't noticed. No, I don't know how Fujitsu accounts for this or why they made the decision to go ahead. I am not a manager at Fujitsu. I can tell you that most companies are very loathe to let prototypes and one-offs to leave their hands at all. So it's definitely impressive on Fujitsu's part that they would go to that length.