The simulation analysis of cross-talk behavior in SOI mixed-mode integrated circuits

With the two-dimensional (2D) TMA medici simulator, the systematic analysis of cross-talk behavior is presented for different SOI mixed-mode integrated circuits such as PD (partially-depleted), FD (fully-depleted) and BC (body-contacted) structures. It is found that the substrate-grounded SOI structure can lower the noise coupling to a large extent compared to the substrate-floating one. Besides, the efficiency of different strategies for reducing cross-talk such as trench isolation, capacitive guard ring and distance separating is also investigated. The results are very important for evaluating cross-talk effects in low-noise coupling SOI mixed-mode IC´s.