Method of making a fuel cell component having an interdigitated flow field configuration

A method of making a fuel cell component, comprising:

• removing material from a plate at a first plurality of locations on a surface of the plate to simultaneously form a plurality of first channels in the surface, each first channel having a first length extending from a first end of the first channel at a first edge of the surface to a second end of the first channel spaced apart from a second edge of the surface opposite to the first edge of the surface, each of the first channels having a first width;
• removing material from the plate at a second plurality of locations on the surface to simultaneously form a plurality of second channels in the surface, each second channel having a second length extending from a first end of the second channel spaced apart from the first edge to a second end of the second channel at the second edge;
• and
• removing material from the plate at the surface near the first ends of the first channels to simultaneously form a plurality of inlet portions that are immediately adjacent to and merged with respective sections of the first lengths of the first channels and which are useful for directing fluid into the first channels, each of the inlet portions having a second width, the inlet portions extending to the first edge of the surface of the plate, the inlet portions being fluidically isolated from one another between the first and second edges of the plate, and each of the sections of the first lengths of the first channels having a width that is a sum of the first width and the second width.