Trouble reading Micron BGA-152 Chips

[jeremyb]

Is there some trick I don't know about for reading Micron BGA-152 chips with NR/FE?

I've tried reading @ 3.3v & 1.8v, also tried converting the 3.3v signals to 1.8v.
Donor PCB's all use 1.8v..

There are always random groupings of uncorrectable bit errors..

[arvika]

NR is not so good for modern memory flash. Many many reading errors.

[wksk]

I get same thing with Micron BGA-152 chips. PC3k, FE, and i even tried on VNR where you can control the various voltages but i get same results no matter which power scheme used.

[arvika]

@wksk - can I check this via TV? You can contact me on PM.

[HaQue]

I am about to read one today - will report on how it went.

[Suitsof]

There are always random groupings of uncorrectable bit errors..

Did you use ReadRetry?

[HaQue]

The BGA I read - with 2 different tools, had bit errors as well, spread over the dump though.