Patent ID: 6507993
Filing Date: 2003-01-21
Classification: H01C,H05K,Y10T

Abstract:
A method of manufacturing a polymer thick-film resistor, the method comprising the steps of:forming a first conductive layer on a dielectric substrate, the first conductive layer having an opening therein that exposes a region of the substrate, the exposed region having two side sections separated by a mid-section, the first conductive layer having two edge regions adjacent the mid-section of the exposed region and separated by the opening and the mid-section of the exposed region; forming a dielectric layer that covers the mid-section of the exposed region of the substrate, the dielectric layer having two end sections that cover the two edge regions of the first conductive layer, the first conductive layer having a surface region left exposed by the dielectric layer; depositing a second conductive layer on at least a portion of the surface region adjacent the two end sections of the dielectric layer; depositing a polymer thick-film resistive material on the dielectric layer and the second conductive layer; and then removing a portion of the second conductive layer and a portion of the first conductive layer so as to define a pair of terminations separated by the dielectric layer, the polymer thick-film resistive material and the terminations defining the polymer thick-film resistor.