Inventors:
Douglas Maly - Canton MI
Sayeed Ahmed - Canton MI
Scott Parkhill - Perrysburg OH
Fred Flett - Bloomfield MI
Assignee:
Ballard Power Systems Corporation - Dearborn MI
International Classification:
H05K 900
US Classification:
361818, 361816, 361715, 361723, 257666, 257700, 315194
Abstract:
A high frequency, low impedance network is integrated into the substrate level of a power module for the reduction of electromagnetic interference (âEMIâ). In one embodiment, capacitance is electrically connected to at least one of the positive conducting layer in a substrate or the negative conducting layer in a substrate and a ground. Integrating a capacitive network of low stray inductance in a substrate of a power module allows relatively small, inexpensive capacitors to be used.