Patent · US Active

Automatic selective slow program convergence

US8411508B2 · kind B2 · utility

6Cited by

0References

23Claims

0Family size

Assignee

Micron Technology, Inc. · US

Inventors

Pranav Kalavade · San Jose, US
Krishna K. Parat · Palo Alto, US
Paul D. Ruby · Folsom, US

Key dates

Filing date	Oct 5, 2009
Grant date	Apr 2, 2013
Priority date	—
Expiry date	Dec 3, 2031

Classification

Technology area (CPC G)Physics
CPC primaryG11C2211/5621
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

Apparatus, methods, and systems are disclosed, including those to improve program voltage distribution width using automatic selective slow program convergence (ASSPC). One such method may include determining whether a threshold voltage (Vt) associated with a memory cell has reached a particular pre-program verify voltage. In response to the determination, a voltage applied to a bit-line coupled to the memory cell may be automatically incremented at least twice as the program voltage is increased, until the cell is properly programmed. Additional embodiments are also described.

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