Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k
Patent
1992-01-21
1994-03-08
King, Roy
Superconductor technology: apparatus, material, process
High temperature , per se
Having tc greater than or equal to 150 k
505728, 427 62, 427 63, 134 1, 134 2, 134 38, H01L 3924
Patent
active
052927172
ABSTRACT:
A method for producing a structured layer of a first material having at least one recess of a predetermined geometrical shape on a substructure formed of at least one second material that includes a metal oxide superconductor material with a high transition temperature which is sensitive to solvents containing acids includes the steps of: forming a first composite by applying a varnish layer to the substructure which is soluble in a first solvent that does not attack the substructure such that the varnish layer has a structure corresponding to the structure of the structured layer of the first material to be produced; cold depositing on the first composite an auxiliary layer of a third material that is soluble in a second solvent which does not attack the first and second materials; forming a second composite from the first composite by removing with the first solvent the varnish layer along with a part of the auxiliary layer resting thereon; applying a coating layer of the first material to the second composite at the elevated deposition temperature that is approximately between 150.degree. C. and 1000.degree. C. in an atmosphere containing oxygen; and removing with the second solvent a remaining part of the auxiliary layer remaining in the area of the at least one recess along with the portion of the coating layer resting thereon. The third material is chosen such that it cannot be attacked by the first solvent and does not enter into any reaction with the first and second materials at an elevated deposition temperature at which the first material is deposited, and further which is itself temperature resistant.
REFERENCES:
patent: 4218532 (1980-08-01), Dunkleberger
patent: 4459321 (1984-07-01), Kim
patent: 4813769 (1990-04-01), Kanda et al.
patent: 4956335 (1990-09-01), Agostinelli et al.
patent: 5126315 (1992-06-01), Nishino et al.
Patent Abstract of Japan, JP-1-161787, Jun. 26, 1989, Yoshida Jiro et al.
Physica C, pp. 185-189 (1991), 2595-2596, North Holland, Elsevier Science Publishers B.V., B. Roas et al.: Basic Elements of High Temperature Superconductor Wiring.
Appl. Phys. Lett. 56 (14), Apr. 2, 1990, pp. 1374-1376, J. R. Phillips et al.: Vapor-deposited superconducting YBa.sub.2 Cu.sub.3 O.sub.7- lines: Effect of thickness and width on morphology.
Appl. Phys. Lett. 59 (20), Nov. 11, 1991, pp. 2594-2596, B. Roas: Patterning of epitaxial YBa.sub.2 Cu.sub.3 O.sub.x insulator multilayers with a high temperature-resistant lift-off mask.
King Roy
Siemens Aktiengesellschaft
LandOfFree
Method for the production of a structured composite with high-te does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the production of a structured composite with high-te, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of a structured composite with high-te will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-153194