Advantage of Flash Programming at ICT
Combination of Test and ISP
When programming flash at ICT the programmable devices are
tested as well as programmed, and in most cases the failures are diagnosed down to the pin
level. An off-line station only produces a go-no-go message. With pre-programmed parts
there is no guarantee that the device was correctly installed.
In many cases programming at ICT is actually faster because
the parts are programmed directly. You are never at the mercy of an inefficient download
utility. Multiple like-kind devices can be programmed concurrently.
It Simplifies Your Inventory
If you have many different programs for a single raw part,
and you have your devices pre-programmed, you have to stock a different device type for
each program. If you program at ICT, you simply stock the one raw part.
ICT programs your part and verifies it. If you pre-program
your parts there is not much to assure that the correct program was installed on the
Get out your calculator and figure out how much money will be
saved when you totally eliminate one station in your test process.
Now, don't take my word for this entirely. There are other
test professionals with a different opinion, and they have a fairly convincing argument.
But please, also read my rebuttal to this opinion.