Patent ID: 6259161
Filing Date: 2001-07-10
Classification: H01L,H05K

Abstract:
A circuit electrode to be electrically connected to a pattern formed on an organic substrate, the electrode comprising:an electroless high-concentration Ni--P plating film which contains phosphorous at a concentration of 7 to 12 wt. % and has a thickness of 3 to 10 .mu.m so as to cover predetermined portions of the pattern;an electroless low-concentration Ni--P plating film which contains phosphorous at a concentration of 3 wt. % or less and has a thickness of 0.5 to 10 .mu.m so as to cover the electroless high-concentration Ni--P plating film; andan oxidation prevention film which covers the surface of the electroless low-concentration Ni--P plating film.