METHOD FOR OBTAINING SUBSTRATES FOR SUPERCONDUCTING LAYERS Russian patent published in 2017 - IPC H01L39/24 

FIELD: electricity.

SUBSTANCE: method comprises providing a layered solid element, the layered solid element comprising the lower layer (303) and the upper layer (316), wherein the upper layer is arranged next to the lower layer and at least partially covers the lower layer; forming multiple discontinuous strips in the upper layer (316), by means of which several open areas (323) of the lower layer (303) are formed, wherein each open area is formed along a discontinuous strip; etching the open areas (323) to form etched volumes (330, 332) between the upper layer (316) and the lower layer (303), wherein each etched volume is formed along a discontinuous strip and wherein the etchant is used, in which the etching rate of the lower layer (303) is higher than the etching rate of the upper layer (316).

EFFECT: providing the possibility of creating a substrate with reduced losses of alternating current with continuous treatment of its long lengths.

20 cl, 22 dwg