Patent ID: 7188404
Filing Date: 2007-03-13
Classification: H01C,Y10T

Abstract:
1. A method for manufacturing a resistor, said method comprising: forming a plurality of pairs of top electrode layers and a plurality of resistor layers on a top face of an insulated substrate sheet, said top electrode layers and said resistor layers being electrically coupled; applying trimming for adjusting a resistance in respective resistor layers between said plurality of pairs of top electrode layers; forming a protective layer for covering at least said plurality of resistor layers; forming a plurality of first slit dividing portions for dividing said insulated substrate sheet such that a plurality of groups of a pair of top electrode layers and resistor layer exist on said insulated substrate; forming a metal film on an entire rear face of the insulated substrate sheet on which said plurality of first slit dividing portions are formed, by using one of a sputtering method and an electroless plating, and forming a plurality of pairs of side electrode layers on an inner face of said plurality of first slit dividing portions, by using one of the sputtering method and electroless plating method; forming a plurality of pairs of rear electrode layers by removing an unrequired portion of said metal film formed on the entire rear face of said insulated substrate sheet by laser; and forming a plurality of second dividing portions perpendicular to said first slit dividing portions for dividing the insulated substrate sheet into discrete substrates by separating said plurality of groups of top electrode layers, resistor layer, side electrode layers, and rear electrode layer from said insulated substrate sheet to individual groups.