Electricity: electrical systems and devices – Electrostatic capacitors – Fixed capacitor
Patent
1993-06-08
1996-07-23
Walberg, Teresa J.
Electricity: electrical systems and devices
Electrostatic capacitors
Fixed capacitor
3613211, 361329, 361330, 257532, H01G 433
Patent
active
055396135
ABSTRACT:
In a semiconductor device which has a substrate, at least one thin film capacitor having a lower electrode layer deposited on the substrate, a dielectric layer overlaid on the lower electrode layer, and an upper electrode layer stacked on the dielectric layer, the lower electrode layer is surrounded by an insulator layer of Si.sub.3 N.sub.4.
REFERENCES:
patent: 5046043 (1991-09-01), Miller et al.
patent: 5198384 (1993-03-01), Dennison
patent: 5206788 (1993-04-01), Larson et al.
patent: 5212620 (1993-05-01), Evans, Jr. et al.
patent: 5227855 (1993-07-01), Momose
patent: 5303182 (1994-04-01), Nakao et al.
patent: 5335138 (1994-08-01), Sandhu et al.
"3-Dimensional Stacked Capacitor Cell For 16M and 64M DRAMS" by EMA et al., MOS Division, Fujitsu Limited, Kawasaki, Japan, 1988 IEEE, pp. 592-595.
IEDM, Dec. 1991, pp. 32.1.1-32.1.4, "A stacked capacitor with (Ba.sub.x Sr.sub.1-x)TiO.sub.3 for 256M DRAM" by Koyama et al.
Miyasaka Yoichi
Sakuma Toshiyuki
Yamamichi Shintaro
Mills Gregory L.
NEC Corporation
Walberg Teresa J.
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