SEU reliability evaluation of 3D ICs

SEU reliability evaluation of 3D ICs

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The single-event-upset (SEU) reliability is a concern for three-dimensional (3D) integrated circuits (ICs), mainly due to the carrier mobility change caused by thermo-mechanical stress from through-silicon vias (TSVs) and the shallow trench isolation (STI). A systematic evaluation method is proposed to identify the vulnerability within 3D ICs at design time. The evaluation flow involves the TSV/STI stress-aware mobility variation calculation, sensitive region marking, insertion of excitation signals and then the simulation of the 3D ICs. This method is able to help 3D IC designers to evaluate and enhance the SEU reliability at design time.


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