Patent · US Active

Ferroelectric random access memory with isolated power supply during write and write-back cycles

US8964445B1 · kind B1 · utility

4Cited by

1References

19Claims

0Family size

Assignee

TEXAS INSTRUMENTS INCORPORATED · US

Inventors

Ge Shen · Shanghai, CN
Norbert Reichel · Wartenberg, DE
Hao Meng · Singapore, SG
Xiaojiong Fe · Shanghai, CN

Key dates

Filing date	Nov 14, 2013
Grant date	Feb 24, 2015
Priority date	—
Expiry date	Nov 14, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG11C11/2275
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In an embodiment of the invention, a method is provided for isolating a ferroelectric memory from a power supply during a write-back cycle or a write cycle of the ferroelectric memory. After it is determined that a write-back cycle or a write cycle will occur in the ferroelectric memory, the power supply is electrically disconnected from the ferroelectric memory before a write-back cycle or a write cycle occurs. Energy during the write-back cycle or the write cycle is provided to the ferroelectric memory by one or more capacitors in this embodiment. After the write-back cycle or the write cycle has ended, the power supply is electrically connected to the ferroelectric memory and the capacitors.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.