Patent ID: 6935016

Claim:
A method for manufacturing a resistor, said method comprising: forming a plurality of pairs of top electrode layers on a top face of an insulated substrate sheet; forming a resistor layer respectively between each pair of top electrode layers in said plurality of pairs of top electrode layers, a part of said resistor layer overlapping said each pair of top electrode layers; trimming resistor layers between said plurality of pairs of top electrode layers for adjusting resistance; forming a protective layer for covering at least said resistor layers; forming a first resist layer for covering at least said protective layer; forming a second resist layer for covering a part of a rear face of said insulated substrate sheet, said part of said rear face facing said first resist layer; forming a plurality of first slit dividing portions for dividing said insulated substrate sheet such that a plurality of groups of said pair of top electrode layers and said resistor layer providing an ineffective area to which said plurality of groups are connected after forming said plurality of groups, so that said plurality of groups are retained on said insulated substrate sheet; forming a plurality of pairs of side electrode layers on an inner face of said plurality of first slit dividing portions on said insulated substrate sheet on which said plurality of first slit dividing portions are formed, by applying electroless plating to said insulated substrate sheet after at least said forming said first resist layer and said second resist layer, said side electrode layers being electrically coupled to said plurality of pairs of top electrode layers; removing said first resist layer and said second resist layer, after forming said plurality of pairs of side electrodes; and after forming said plurality of pairs of side electrode layers, 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, and side electrode layers on said insulated substrate sheet to individual resistors which are separated from said ineffective area.