Semiconductor memory device

Static information storage and retrieval – Systems using particular element – Capacitors

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

365174, G11C 1140, G11C 1124

Patent

active

043553745

ABSTRACT:
A semiconductor memory comprising a memory cell disposed on a p-type semiconductor substrate and including an insulated-gate field effect transistor and a storage capacitor. The storage capacitor comprises: an insulator capacitor including a first electrode disposed on the substrate, a film of Si.sub.3 N.sub.4 disposed on the first electrode, and a second electrode disposed on the Si.sub.3 N.sub.4 film; and a pn junction capacitor including a first n-type impurity region for constituting either the source or drain of the insulated-gate field effect transistor, and a second p-type impurity region disposed in contact with the first impurity region and having a higher impurity concentration than the substrate.

REFERENCES:
patent: 4164751 (1979-08-01), Tasch, Jr.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Semiconductor memory device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor memory device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1341297

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.