Confused about FFG900 with 'stamped lid'

[diverger]

In UG865, for FFG900, there are two options, one is with 'Stamped Lid', the other not. 

FFG900 with stamped lid:

FFG900 lidless:

I have two questions:

• Are they have different part nubmer when I order them?
• I know the difference between 'forged lid' and 'stamped lid'. But, what's the differnce between 'metal heat sink' and 'stamped lid'? Or, 'metal heat sink'  just equal to 'forged lid'?

[simon]

Hi @diverger 

Please refer xtp474:https://www.xilinx.com/member/forms/download/design-license.html?cid=f4783abc-d083-4cc2-9a75-5b1c954a16c2&filename=xtp474.pdf

[diverger]

So, the 'metal heat sink' in the above picture is actually 'forged lid'?

[simon]

yes, metal heat sink means the foged lid.