Computer simulation of scattered ion and sputtered species effects in ion beam sputter-deposition of high temperature superconducting thin films

Conference · Wed Jan 01 04:00:00 EST 1992

OSTI ID:5332814

Krauss, A R ^[1]; Auciello, O ^[2]

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1. Argonne National Lab., IL (United States)
2. Microelectronics Center of North Carolina, Research Triangle Park, NC (United States)

Ion beam sputter-deposition is a technique currently used by many groups to produce single and multicomponent thin films. This technique provides several advantages over other deposition methods, which include the capability for yielding higher film density, accurate stoichiometry control, and smooth surfaces. However, the relatively high kinetic energies associated with ion beam sputtering also lead to difficulties if the process is not properly controlled. Computer simulations have been performed to determine net deposition rates, as well as the secondary erosion, lattice damage, and gas implantation in the films, associated with primary ions scattered from elemental Y, Ba and Cu targets used to produce high temperature superconducting Y-Ba-Cu-O films. The simulations were performed using the TRIM code for different ion masses and kinetic energies, and different deposition geometries. Results are presented for primary beams of Ar{sup +}, Kr{sup +} and Xe{sup +} incident on Ba and Cu targets at 0{degrees} and 45{degrees} with respect to the surface normal, with the substrate positioned at 0{degrees} and 45{degrees}. The calculations indicate that the target composition, mass and kinetic energy of the primary beam, angle of incidence on the target, and position and orientation of the substrate affect the film damage and trapped primary beam gas by up to 5 orders of magnitude.

• Research Organization: Argonne National Lab., IL (United States)
• Sponsoring Organization: DOE; DOD; USDOE, Washington, DC (United States); Department of Defense, Washington, DC (United States)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5332814
• Report Number(s): ANL/CP-76122; CONF-920402--31; ON: DE92015227; CNN: N-00014-88-K-0525
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
665300 -- Interactions Between Beams & Condensed Matter-- (1992-)
665411 -- Basic Superconductivity Studies-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
CHALCOGENIDES
COMPUTERIZED SIMULATION
COPPER COMPOUNDS
COPPER OXIDES
DEPOSITION
ENERGY BEAM DEPOSITION
FILMS
HIGH-TC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SIMULATION
SPUTTERING
SUPERCONDUCTING FILMS
SUPERCONDUCTORS
SURFACE COATING
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS