Apparatus and method for refreshing or toggling a...

Details Apparatus and method for refreshing or toggling a... Apparatus and method for refreshing or toggling a...

2011-07-26

2011-07-26

Lam, David (Department: 2827)

Static information storage and retrieval

Systems using particular element

Amorphous

C365S222000, C365S189090, C365S185210

Reexamination Certificate

active

07986549

ABSTRACT:
An apparatus and a method for refreshing or toggling a phase-change memory cell are described. The apparatus includes a voltage ramp element coupled to the phase-change memory cell and provided for controlling voltage across the phase-change memory cell. A current control element is coupled to the phase-change memory cell and provided for controlling current through the phase-change memory cell. A current sensor element is coupled to the phase-change memory cell. A write-back timer and control element is coupled to the current sensor element and to the current control element.

REFERENCES:
patent: 7030640 (2006-04-01), Yee et al.
patent: 7593255 (2009-09-01), Happ et al.
patent: 7729163 (2010-06-01), Ramani et al.
patent: 7791935 (2010-09-01), Kang et al.
patent: 7796424 (2010-09-01), Happ et al.
Ielmini, Daniele, et al. “Recovery and Drift Dynamics of Resistance and Threshold Voltages in Phase-Change Memories,” IEEE Transactions on Electron Devices, vol. 54, No. 2, Feb. 2007, pp. 308-315.
Lai, Stefan “Current status of the phase change memory and its future,” IEEE, Electron Devices Meeting, 2003, pp. 255-258.

Affiliated with

Also associated with

Rating

Apparatus and method for refreshing or toggling a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus and method for refreshing or toggling a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus and method for refreshing or toggling a... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2695678