Patent ID: 8779528
Filing Date: 2014-07-15
Classification: H01L

Abstract:
1. A Static Random Access Memory (SRAM) cell comprising: a first pull-up Fin Field-Effect Transistor (FinFET) and a second pull-up FinFET; a first pull-down FinFET and a second pull-down FinFET forming cross-latched inverters with the first pull-up FinFET and the second pull-up FinFET; a first pass-gate FinFET connected to drains of the first pull-up FinFET and the first pull-down FinFET; a second pass-gate FinFET connected to drains of the second pull-up FinFET and the second pull-down FinFET, wherein the first and the second pass-gate FinFETs are p-type FinFETs; a p-well region in a center region of the SRAM cell and underlying the first and the second pull-down FinFETs; and a first and a second n-well region on opposite sides of the p-well region.