Heat Sink Attachment Process Considerations - Heat Sink Attachment Process Considerations - AM013

Versal Adaptive SoC Packaging and Pinouts Architecture Manual (AM013)
Document ID
AM013
Release Date
2026-05-08
Revision
1.9 English

After placing the component on the PCB, carefully consider the factors in the following table when attaching a heat sink to the bare-die package. See also to the following figure.

Table 1. Heat Sink Attachment Considerations
Consideration(s) Effect(s) Recommendation(s)
In a heat sink attach process, what factors can cause damage to the exposed die and passive capacitors?
  • Uneven heat sink placement
  • Uneven TIM thickness
  • Uneven force applied when placing heat sink placement
  • Even heat sink placement
  • Even TIM thickness
  • Even force applied when placing heat sink placement
Does the heat sink tilt or tip the post attachment?
  • Uneven heat sink placement damages silicon and leads to field failures
  • Careful handling not to contact the heat sink with the post attachment
  • Use a fixture to hold the heat sink in place with post attachment until it is glued to the silicon
Figure 1. Recommended Application of Heat Sink