Platinum-free ferroelectric memory cell with intermetallic...

H - Electricity – 01 – L

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

H01L 29/76 (2006.01) H01L 21/02 (2006.01) H01L 29/92 (2006.01) H01L 29/94 (2006.01) H01L 31/062 (2006.01) H01L 31/113 (2006.01) H01L 31/119 (2006.01)

Patent

CA 2241676

A ferroelectric memory cell integrated on a silicon substrate. The ferroelectric stack includes a ferroelectric layer (50), such as PbNbZrTiO, sand- wiched between conductive metal-oxide electrodes (46, 52), such as the perovskite LaSrCoO. The ferroelectric stack is grown over a barrier layer (44) of an intermetallic alloy such as Ni 3A1 or Ti 3A1 , which is highly resistant to oxidation at elevated temperatures. The intermetallic layer is either deposited directly over the silicon substrate (40) or over an intermediate TiN layer (42). The resulting structure does not require a platinum bar- rier layer.

Cette invention concerne un cellule de mémoire ferroélectrique intégrée sur un substrat en silicium. La pile ferroélectrique comprend une couche ferroélectrique (50), par exemple du PbNbZrTiO, laquelle est prise en sandwich entre deux électrodes conductrices (46, 52) d'oxyde métallique, tel que du LaSrCoO de pérovskite. La croissance de la pile ferroélectrique se fait sur une couche faisant barrière (44), laquelle se compose d'un alliage intermétallique, tel que du Ni 3Al ou du Ti 3Al , qui possède une grande résistance à l'oxydation à des températures élevées. Cette couche intermétallique est déposée soit directement sur le substrat de silicium (40), soit sur une couche intermédiaire de TiN (42). La structure ainsi obtenue ne nécessite pas l'ajout d'une couche de platine faisant barrière.

LandOfFree

Say what you really think

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

Rating

Platinum-free ferroelectric memory cell with intermetallic... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Platinum-free ferroelectric memory cell with intermetallic..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Platinum-free ferroelectric memory cell with intermetallic... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1729570

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