Very strange monolith
October 25th, 2015, 2:07
Hi, guys!
Got really startled with this monolith when I open Silicon Motion SD case. There are no any markings on the monolith itself, and it seems like some kind of a glue on it. So I would like to ask you:
1. Has anyone encountered such a pretty mystery?
2. What kind of a chemical should I use to get to pinout layer?
3. Can anyone share the layout if you are so kind?
Got really startled with this monolith when I open Silicon Motion SD case. There are no any markings on the monolith itself, and it seems like some kind of a glue on it. So I would like to ask you:
1. Has anyone encountered such a pretty mystery?
2. What kind of a chemical should I use to get to pinout layer?
3. Can anyone share the layout if you are so kind?
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Re: Very strange monolith
October 25th, 2015, 3:29
If that bottom picture is all the same device, then I am not sure, but it looks like the device itself is split in half - when it shouldn't be. I think, if true, this is broken beyond recovery, with NANDs and discretes ripped from PCB and attached to the top layer, plastic or whatever it is usually coated/filled with.
It is a little hard to see from the photos. a high res of the bottom photo would be great. a flatbed scanner will work. I will try and find a pic of a similar thing to show you what I mean
It is a little hard to see from the photos. a high res of the bottom photo would be great. a flatbed scanner will work. I will try and find a pic of a similar thing to show you what I mean
Re: Very strange monolith
October 25th, 2015, 4:50
Really sorry for the quality of the pics, but at the moment neither a highrez camera nor a scanner is available.
So posting the pics as is.
So posting the pics as is.
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- the chip itself
- DSCN3817.JPG (77.06 KiB) Viewed 5862 times
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- The chip itself
- DSCN3816.JPG (107.92 KiB) Viewed 5862 times
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- The PCB the chip was attached to
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- The PCB the chip was attached to
Re: Very strange monolith
October 25th, 2015, 5:03
here is annotated pic of what I think is happening
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Re: Very strange monolith
October 25th, 2015, 5:08
Got it!!!
I should not have unsoldered it. My bad!!!
Thanks for help in understanding the problem!!!
I should not have unsoldered it. My bad!!!
Thanks for help in understanding the problem!!!
Re: Very strange monolith
October 25th, 2015, 5:08
normally with cases like this, 2 pieces are intact. you would sand off the side in this attached pic exposing the traces, vias and other contacts like in the circled area, find the pinout and read like any other monolith.
your case is totally unrecoverable I think.
they build the device by adding the controller and nands with thin bonding wires to the PCB, then discreets onto the PCB, then pouring the plastic or whatever on top encasing it all.
your case is totally unrecoverable I think.
they build the device by adding the controller and nands with thin bonding wires to the PCB, then discreets onto the PCB, then pouring the plastic or whatever on top encasing it all.
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Re: Very strange monolith
October 25th, 2015, 5:17
I fully and completely agree. Normally, there are any jutting edges on monoliths, that is why I thought...
Re: Very strange monolith
October 25th, 2015, 5:27
Device is damaged. No chance to recover
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