High Performance YBCO Films

reportActive / Technical Report | Accession Number: ADA286567 | Open PDF

Abstract:

The focus for the remainder of our program, which will end during the next quarter, is on oxygen annealing the buried YBCO ground plane through the Ag power plane and glassmetal handle as well as making an MCM structure with YBCO being used for only the signal layer. Oxygen annealing of a YBCO-covered lanthanum aluminate through five microns of thermally evaporated silver, after subjecting the sample to glass-firing conditions, recovered the microwave Q of the sample to within 16-18 of its original value measured before the silver was deposited. The oxygen annealing time was only 4 hours. This Q degradation is believed to be acceptable for the YBCO ground plane of an MCM module. Addition of the STO dielectric layer between the YBCO ground plane and the silver makes the oxygen annealing time very long 18 hours.

Author(s):
Denlinger, Edgar J. ; Fathy, Aly ; Kalokitis, David ; Pendrick, Valerie ; Thaler, Barry ; Harshavardhan, K. S. ; Venkatesan, T.
Author Organization(s):
DAVID SARNOFF RESEARCH CENTER PRINCETON NJ
Descriptive Note:
Rept. for 25 Aug 1994-25 Nov 1995
Supplementary Note:
Sponsored in part by DARPA.
Pagination:
0007

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-91-C-0216, DARPA ORDER-8100
Monitor Series:
ONR
 Subject Terms
Modernization Areas:
Microelectronics
Communities of Interest:
Air Platforms
Descriptor(s):
*ANNEALING, *FILMS, *OXYGEN, *CHIPS(ELECTRONICS), METALS, DEGRADATION, MILLIMETER WAVES, SIGNALS, FLUORIDES, ALUMINATES, SILVER, LANTHANUM, MODULES(ELECTRONICS), GLASS, MICROWAVES, LAYERS, DIELECTRICS, PERFORMANCE(ENGINEERING), MAGNESIUM
Field(s)/Group(s):
Inorganic Chemistry, Physical Chemistry, Electrical and Electronic Equipment, Coatings, Colorants and Finishes
Keyword(s):
*YBCO(YTTRIUM BARIUM COPPER OXIDE), HIGH PERFORMANCE, MCM(MULTICHIP MODULES), GROUND PLANE, GLASS FIRING
Report Date:
1994 Aug 25