[PLUG] Flash memory physics: read gentle, write brutal

[Keith Lofstrom]

I (a defrocked chip designer) sent a longer reply to
Russell.  Briefly:

Flash cell read uses low voltages, flash cell write
requires high voltages.  Manufacturing test of write 
is also slower than testing read, hence less tested.

OF COURSE more-stressful write will fail before read.
If read fails, you will never know that write failed
first.

-- 
Keith Lofstrom          keithl at keithl.com