Crystalline rare earth alkaline earth copper oxide thick film ci

Superconductor technology: apparatus – material – process – High temperature – per se – Having tc greater than or equal to 150 k

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427 62, 427 63, 427 97, 1741251, 174261, 428209, 428220, 428334, 428689, 428901, 428930, H05K 100, H05K 116, B32B 300, B32B 702

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049083465

ABSTRACT:
Thick film circuit elements are disclosed comprised of an insulative substrate selected from the group consisting of strontium titanate, magnesia, alumina, and aluminum nitride, and providing a conductive path between at least two locations on the substrate, a crystalline rare earth alkaline earth copper oxide layer exhibiting a superconducting onset transition temperature in excess of 77.degree. C. comprised on an R.sub.1 A.sub.2 C.sub.3 crystalline phase.

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