Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1985-09-23
1987-05-12
Roy, Upendra
Metal working
Method of mechanical manufacture
Assembling or joining
29576B, 29591, 148 15, 148187, 148DIG93, 148DIG140, 156643, 357 91, 427 431, 427 531, H01L 21265, H01L 718, B23K 900
Patent
active
046638261
ABSTRACT:
A method for generating an area of increased conductivity on the surface of a body of dielectric material, such as for the purpose of attaching electrodes or other electrical interconnections to the area includes the steps of enclosing the surface within a reducing atmosphere and irradiating the portion of the surface corresponding to the desired conductive area with laser radiation for a selected period of time. The atmosphere may be a hydrogen atmosphere at a pressure in the range of 0-1000 HPa. Additionally, the surface may be preheated prior to irradiation.
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Bermudez, Jour. Vac. Sci. Technol. 20 (1982) 51.
Antonini et al., Thin Solid Films, 125 (Mar. 1985), p. 187.
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