Heatsinks are large conductive objects which are typically ungrounded and placed above ASICs or other ICs. They may pickup and enhance radiation. With today's SerDes line rates, wavelength sizes in the system are now comparable to heatsink sizes. A design flow is proposed that will allow quick and systematic simulations of heatsinks for EMI.
Jinghan Yu, Philippe Sochoux, Alpesh Bhobe (Cisco Systems); Federico Centola (Flomerics)