Substrate Noise Reduction Based On Noise Aware Cell Design

— A substrate biasing methodology is introduced based on modifying standard cells by inserting dedicated substrate contacts in those cells behaving as aggressive digital noise generators. These contacts are connected to a dedicated ground network. The proposed approach reduces two primary noise injection mechanisms: ground coupling and source/drain junction coupling. Limitations of the Kelvin biasing scheme are removed while achieving more than a 60% (9 dB) reduction in substrate noise at the cost of a 12% increase in area.

• Type: Conference
• Year: 2007
• Where: ISCAS
• Authors: Emre Salman, Eby G. Friedman, Radu M. Secareanu, Olin L. Hartin
• Keywords: Aggressive Digital Noise, ISCAS 2007, Kelvin Biasing Scheme, Substrate Biasing Methodology