Patent ID: 7982582
Filing Date: 2011-07-19
Classification: H01C

Abstract:
1. A sulfuration resistant chip resistor comprising: an insulating substrate having a top surface; first and second top terminal electrodes disposed on the top surface, the first and second top terminal electrodes being susceptible to sulfuration; a resistive element positioned between and electrically connecting the first and second top terminal electrodes; an external protective layer comprising a dielectric material overlaying the resistive element and at least a portion of the first and second top terminal electrodes; first and second metalized edges formed on the external protective layer to allow for plating; a first conducting metal plated layer covering a part of the first top terminal electrode, the first conducting metal plated layer being adhered to the first top terminal electrode and the first metalized edge of the external protective layer; and a second conducting metal plated layer covering a part of the second top terminal electrode, the second conducting metal plated layer being adhered to the second top terminal electrode and the second metalized edge of the external protective layer.