An electrostatic discharge （ESD） detection circuit with a modified RC network for a 90-nm process clamp circuit is proposed. The leakage current is reduced to 4.6 nA at 25 ℃. Under the ESD event, it injects a 38.7 ...An electrostatic discharge （ESD） detection circuit with a modified RC network for a 90-nm process clamp circuit is proposed. The leakage current is reduced to 4.6 nA at 25 ℃. Under the ESD event, it injects a 38.7 mA trigger current into the P-substrate to trigger SCR, and SCR can be turned on the discharge of the ESD energy. The capacitor area used is only 4.2 μm2. The simulation result shows that the proposed circuit can save power consumption and layout area when achieving the same trigger efficiency, compared with the previous circuits.展开更多
The theory of RC uniform ladder networks based upon the recurrence of voltage and cur-rent functions is extended as a vehicle to analyse the dynamic characteristics of reg lines. Meth-ods for computing the time consta...The theory of RC uniform ladder networks based upon the recurrence of voltage and cur-rent functions is extended as a vehicle to analyse the dynamic characteristics of reg lines. Meth-ods for computing the time constants and simplifying the transfer functions for reg lines are alsopresented.展开更多
基金Project supported by the National Natural Science Foundation of China(Nos.61076097,60936005)the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China Program(No.20110203110012)
文摘An electrostatic discharge （ESD） detection circuit with a modified RC network for a 90-nm process clamp circuit is proposed. The leakage current is reduced to 4.6 nA at 25 ℃. Under the ESD event, it injects a 38.7 mA trigger current into the P-substrate to trigger SCR, and SCR can be turned on the discharge of the ESD energy. The capacitor area used is only 4.2 μm2. The simulation result shows that the proposed circuit can save power consumption and layout area when achieving the same trigger efficiency, compared with the previous circuits.
文摘The theory of RC uniform ladder networks based upon the recurrence of voltage and cur-rent functions is extended as a vehicle to analyse the dynamic characteristics of reg lines. Meth-ods for computing the time constants and simplifying the transfer functions for reg lines are alsopresented.
