Program check for a non-volatile memory

Details Program check for a non-volatile memory Program check for a non-volatile memory

1986-06-05

1990-07-24

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Testing

365185, 365104, G11C 700

Patent

active

049439480

ABSTRACT:
A non-volatile memory has memory cells which are programmable to a programmed state from an unprogrammed state. Programming changes the conductivity of the memory cell which is being programmed. The particular state of a selected memory cell is determined by comparing the conductivity of the selected memory cell to that of a normal reference. In order to assure that a memory cell has been programmed to a conductivity which is sufficient for reliable detection, a substitute reference with a different conductivity is used immediately after programming. If the selected cell is detected as being programmed when compared to the substitute reference, the selected cell is then determined to have been sufficiently programmed for reliable detection using the normal reference.

REFERENCES:
patent: 3656106 (1972-04-01), Stein
patent: 4458338 (1984-07-01), Giebel et al.
patent: 4612630 (1986-09-01), Rosier
patent: 4625311 (1986-11-01), Fitzpatrick et al.
patent: 4631724 (1986-12-01), Shimizu

Affiliated with

Also associated with

Rating

Program check for a non-volatile memory does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Program check for a non-volatile memory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Program check for a non-volatile memory will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1271423