Increasing forward biased safe operating area using different threshold voltage segments

A device comprising:

• a plurality of concentric source segmentation zones extending from a center of the device to edges of the device, wherein each concentric source segmentation zone comprises:
• a gate;
• and
• a segmented source proximate to the gate, wherein the segmented source comprises a plurality of first segments having a first threshold voltage and a plurality of second segments having a second threshold voltage less than the first threshold voltage,
• wherein an area ratio of a total area of the plurality of first segments to a total area of the plurality of second segments varies according to a distance of the concentric source segmentation zone from the center of the device.

A device comprising:

• a plurality of cells, wherein each cell comprises:
• a gate region on an upper surface of a device, wherein an inner perimeter of the gate region defines a source perimeter;
• and
• a segmented source adjacent to the source perimeter, wherein the segmented source comprises a plurality of first segments having a first threshold voltage and a plurality of second segments having a second threshold voltage different from the first threshold voltage.