TMS320C6454: TMS320C6454BGTZA

Can you elaborate on your question.

Karabo Kgokong said:

I would like to find out what would make the top late to dislodge in the device

What do you mean by top (p)late dislodge?    

Karabo Kgokong said:

and the marking to be removed all together

Do you mean all the symbolization has gone?

What are the circumstances?  New parts?  Mounted? Time in service?  Environment? 

--Paul 

The part is very new, the process washing. (vigon600) the marking and the place came off. the marking wiped off.

Thanks, so, just to be sure I understand,  no damage to the device, just loss of symbolization.

Did this happen to only one device or several out of how many?

From where were they purchased?

Do you have any pictures of the symbolization pre-wash?

--Paul 

Good day Paul.

These are new products, They are acquired via buying houses not sure which one was that.

The top marking on the heatsink As follows;

2021 - 1BAAL5TW

             T 2005 TI

Do you have any pictures of the symbolization pre-wash?

Heatsink?  Is the just referring to the top of the package, not an actual heatsink?

Did this just happen to a single device,  multiple, or all?   How many total? 

--Paul 

OK,  I think understand the "heatsink", top layer is referred to as a "heat slug" in the datasheet. 

The package was not compromised/damaged by the wash, only the symbolization removed, correct.  

Herewith the pictures of the device, the heat slug came off, the affected were 5, however only the x4 came off. If you have to recommend the glue, which one would we use?

Yes, as is it does not look dammed, We sent one for the PCB-A functional testing. Will advice with the results soon.

That's for the additional information. I am checking internally. 

How many total boards went through the process?

Please do update with the results of the functional testing. 

Paul 

The total numbers of boards were 5.

Will advice with the functional test outcome.

For now, please only test the the board/part with the heat slug still attached. 

Correct, we only intent to test the board with the slug still attached.

Karabo

Can you provide copies of documentation on the purchase history of the parts and pictures of any  labels on the ESD packaging? 

--Paul 

Hi Paul, 

Let me look into the info then revert.