Controlled carbon content MOD precursor materials using organic

Coating processes – Electrical product produced – Metallic compound coating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

427226, 427240, B05D 302

Patent

active

057210098

ABSTRACT:
Metal organic acid salt solutions for use as precursor materials for forming layered ferroelectric thin films are synthesized using an organic acid anhydride as the exchange reagent. The reaction is much faster than previous techniques, allows exact control of exchange with control of hydrolysis product, and may be used to control the solvent of the final solution. The reaction creates no water, and can be used to exactly control the extent of reaction of all metals. By using less than or equal to a stoichiometric amount of anhydride and then further reacting the remaining alkoxides, lower carbon content solutions with less decomposable organic can be formed. As such, the present invention discloses a much improved and faster synthesis technique giving improved solutions and corresponding thin film metal oxide compositions with improved and consistent electrical performance.

REFERENCES:
patent: 4963390 (1990-10-01), Lipeles et al.
patent: 5423285 (1995-06-01), Paz de Araujo et al.
patent: 5434102 (1995-07-01), Watanabe et al.
patent: 5439845 (1995-08-01), Watanabe et al.
patent: 5468679 (1995-11-01), Paz de Araujo et al.
patent: 5514822 (1996-05-01), Scott et al.
patent: 5559260 (1996-09-01), Scott et al.
patent: 5614252 (1997-03-01), McMillan et al.
G.M. Vest et al, "Synthesis of Metallo-Organic Compounds For MOD Powders and Films", Mat. Res. Soc. Symp. Proc., vol. 60, pp. 35-42 (1986).
R.W. Schwartz et al, "Solution Chemistry Effects in Pb(Zr, Ti) O3 Thin Film Processing", Integrated Ferroelectrics, 1992, vol. 2, pp. 243-254 (1992).
San-Yuan Chen et al, "Cracking during Pyrolysis of Oxide Thin Films--Phenomenology, Mechanisms, and Mechanics", Journal of American Ceramic Society, vol. 78, No. 11, pp. 2929-2939 (Nov. 1995).
T. Kawahara et al, "Influence of Ti Sources on Properties of (Ba,Sr)TiO.sub.3 Films Prepared by Liquid Source CVD", Mat. Res. Soc. Symp. Proc., vol. 361, pp. 361-366 (1995).
C.A-Paz de Araujo*.dagger. et al, "Fatigue-free ferroelectric capacitors with platinum electrodes", Nature, vol. 374, pp. 627-629 (Apr. 1995).

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

Controlled carbon content MOD precursor materials using organic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controlled carbon content MOD precursor materials using organic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlled carbon content MOD precursor materials using organic will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1873837

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