I am using the M6E Nano [(SEN-14066) Simultaneous RFID Tag Reader (SRTR) as a RedBoard [(DEV-13975) shield and I am having a hard time finding thermal parameters such as the desired termal resistance of the heat sink (area / size) and most importantly, how to attach the heat sink under this configuration (arduino shield instead of hardware serial), because [this post (item 4) says that the metal in the top (with the Novanta M6E sticker) is a metal RFI shield and doesnt have heat producing components thermally bonded to it.
If a heatsink can be attached there (the 2 center screw holes, because the headers woulnt let the heat sink be attached with the corner holes), should I remove the sticker to apply thermal compound or is it safe to apply it over the sticker (unlikely)?
Thanks!](Power for Simultaneous RFID Tag Reader (SRTR) - SparkFun Electronics Forum)](https://www.sparkfun.com/products/13975)](https://www.sparkfun.com/products/14066)