Laser and Electrochemical Studies of Metallizations in Electronic Devices.

Abstract

The research during this year was concerned with application of excimer laser (193nm, 24 nsec, 10 to the 6th power - 10 to the 7th power watt/sq cm pulse) to Pb-Sn surfaces. The laser induced melting of the Pb-Sn coating resulted in bright area in which lead-rich zone were observed. Perferential dissolution of lead was observed during electrochemical potentiodynamic polarization of both the as -deposited and laser treated surfaces. Calculation showed that the laser-treated specimen had higher corrosion rates than as-deposited counter-parts. Keywords: Laser treatment; Pb-Sn coating, Corrosion, and Potentiodynamic polarization.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA193786

Entities

People

  • B. Dobbs
  • J. Zahavi
  • M. Rotel

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Boric Acids
  • Chemistry
  • Coatings
  • Corrosion
  • Corrosion Resistance
  • Current Density
  • Electron Microscopes
  • Excimer Lasers
  • Laser Beams
  • Lasers
  • Linear Polarization
  • Materials
  • Metals
  • Polarization
  • Resistance
  • Scanning Electron Microscopes

Readers

  • Materials Science and Engineering.
  • Pulsed Power and Plasma Physics.
  • Thin Film Deposition Science.

Technology Areas

  • Directed Energy
  • Directed Energy - Pulsed-Laser Deposition
  • Microelectronics
  • Microelectronics - Graphene