Laser and Electrochemical Studies of Metallizations in Electronic Devices.
Annual research rept. no. 2, 1 Sep 86-31 Aug 87,
ISRAEL INST OF METALS HAIFA
Pagination or Media Count:
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 wattsq 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.
- Lasers and Masers
- Inorganic Chemistry