Design of SRAM cell for low power portable healthcare applications

A low‐leakage single‐bitline 9T SRAM cell with read‐disturbance removal and high writability for low‐power biomedical applications

“…Therefore, it is essential to design an SRAM cell with reliable functioning that can meet the needs of low‐power applications, especially biomedicine 6 . With the biomedicine's rapid progress, the vital signs of a patient like blood pressure 11 can be ceaselessly monitored with the aid of very small and accurate sensors worn to his/her body, which are able to communicate with each other wirelessly 12 . This forms a wireless network system (WNS), known as wireless body area network (WBAN), 13 which is of very small form factor (<1 cm 3 ) 12 .…”

“…This reduces the WBAN nodes' on‐sensor battery energy, constraining to a very low power budget. Furthermore, the processing unit collects all the sensors' data transferred wirelessly to it, which consumes a huge portion of power for the process performing 12,14 . Minimization of the amount of data through processing on the sensor nodes can reduce the power consumption, but it requires very large density SRAM cells coupled with intelligent processor 14 .…”

“…6 With the biomedicine's rapid progress, the vital signs of a patient like blood pressure 11 can be ceaselessly monitored with the aid of very small and accurate sensors worn to his/her body, which are able to communicate with each other wirelessly. 12 This forms a wireless network system (WNS), known as wireless body area network (WBAN), 13 which is of very small form factor (<1 cm 3 ). 12 This reduces the WBAN nodes' on-sensor battery energy, constraining to a very low power budget.…”

“…12 This forms a wireless network system (WNS), known as wireless body area network (WBAN), 13 which is of very small form factor (<1 cm 3 ). 12 This reduces the WBAN nodes' on-sensor battery energy, constraining to a very low power budget. Furthermore, the processing unit collects all the sensors' data transferred wirelessly to it, which consumes a huge portion of power for the process performing.…”

“…Furthermore, the processing unit collects all the sensors' data transferred wirelessly to it, which consumes a huge portion of power for the process performing. 12,14 Minimization of the amount of data through processing on the sensor nodes can reduce the power consumption, but it requires very large density SRAM cells coupled with intelligent processor. 14 As mentioned earlier, the WBAN nodes continually collect the data and finally transfer them from the patient's body to processing unit for the timely diagnosis of a disease.…”