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AR# 3514

Packaging - Will the heat sink on the bottom of the HQ240 (or smaller packages such as HQ160) short signals on the board?

Description


General Description:

The HQ240 and smaller packages have a heat sink on the bottom of the part that, when mounted, will face the PCB. Some customers have expressed concern that the heat sink will create a short between signal traces on the board.

Solution


On the HQ240 and smaller packages, the heat sink on the bottom of the die is insulated. Because of this there is no need for an external patch to achieve insulation.



Please see the following for more information:



http://www.xilinx.com/bvdocs/notifications/pcn97009a.pdf
AR# 3514
Date Created 08/21/2007
Last Updated 05/14/2014
Status Archive
Type General Article
Devices
  • Virtex-E
  • Virtex-E QPro
  • Virtex
  • More
  • Virtex QPro/R
  • 4000E/EX/XL QPro/R
  • 4000/E/XL/XV
  • Less