Accession Number : ADA181963

Title :   Laser and Electrochemical Studies of Metallizations in Electronic Devices.

Descriptive Note : Annual research rept. no. 1, Oct 85-Oct 86,

Corporate Author : ISRAEL INST OF METALS HAIFA

Personal Author(s) : Zahvi, J ; Rotel, M ; Dobbs, B

PDF Url : ADA181963

Report Date : Jan 1987

Pagination or Media Count : 103

Abstract : Environmental and corrosion behavior of Pb-Sn electrodeposits was studied by electrochemical polarization techniques and SEM. Experiments with D.I. water containing .001 to .1 MC1(-) showed that for a given deposit, the corrosion rate increases with C1(-) concentration and decreases with deposit thickness in the 2-25 micro range. The mode of corrosion was associated with preferred dissolution of lead. Deposits were also irradiated with Nd-Yag pulse laser at 530mm and 2x10 to the 8th power -2. 10 to the 9th power watt/sq. cm power density and the treated zones were examined. Keywords: Tin, Lead, Electrochemical, Polarization, Laser, Treatment.

Descriptors :   *ELECTROCHEMISTRY, *METALLIZING, *CORROSION, *ELECTRONIC EQUIPMENT, *PULSED LASERS, DENSITY, POWER, DEPOSITS, THICKNESS, ENVIRONMENTS, POLARIZATION, WATER, RATES, LASERS, NEODYMIUM LASERS, YAG LASERS, TIN

Subject Categories : Properties of Metals and Alloys
      Atomic and Molecular Physics and Spectroscopy
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE