Unit Testing Tools Old Date Code Semiconductors Not Used By Companies

Old Date Code Semiconductors Not Used by Companies - unit testing tools

Hello,
I am a purchasing manager in the manufacture of electronics unit, many providers offer date code of age (date of manufacture) of semiconductors at lower prices. as old as \\ \\ \\ \\ \\ \\ \\ \\ u0026lt; 10 years.

All codes SEMICONDUCT much time if we were to test the use of tools, noted, "OK."

I know the answer to the following, suggest that some new way:

* Former materials at a given time, are the providers of mixed-use defective chips or shavings (Chainia refurbusied pepole experts in this)
* Material former are not PB.
* No imports through legal channels.
* Some Time "Chori ka Maal"
* No right handelen Demag pin chips.
* Rust on the pins.
* Moose in the packaging. etc.
* Dual Chips

If all these disadvantages should be carefully monitored, and if the materials are good, we can purcahse date code of age (in batches) the supplier material?

Some large state-owned companies not before the date of purchase material was old code>> Why?

There is no functional difference between the old (not awarded again) and semiconductors?

Pleasepropose.

Regards