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US 10,833,671 B2Granted
Increasing forward biased safe operating area by source segmentation
AssigneeInfnieon Technologies Americas Corp.
InventorPraveen Shenoy
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Abstract
A power device includes two gate stripes formed on an upper surface of the device, a source stripe perimeter comprising the total available shared perimeter between the two gate stripes and a corresponding source stripe, and a segmented source formed between the two gate stripes, wherein an edge length of the segmented source covers between 5% to 95% of the source stripe perimeter.
Claims20
A device comprising:
- a plurality of cells, wherein each cell comprises:
- at least two gate stripes formed on an upper surface of the device;
- and
- a segmented source formed between the at least two gate stripes, wherein an edge length of the segmented source covers between 5% to 95% of an available source stripe perimeter, wherein the available source stripe perimeter is defined as a total edge length of facing edges of the at least two gate stripes, and wherein the edge length varies according to a distance of the segmented source from a center of the device.
1 more element
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 plurality of gate stripes formed on an upper surface of the device;
- and
- a segmented source formed between two of the gate stripes, wherein an edge length of the segmented source covers a percentage of an available source stripe perimeter that varies according to a distance of the concentric source segmentation zone from the center of the device, wherein the available source stripe perimeter is defined as a total edge length of facing edges of the two of the plurality of gate stripes.
1 more element
A device comprising:
- a plurality of cells, wherein each cell comprises:
- a gate region on an upper surface of a device, wherein a total length of an inner perimeter of the gate region defines an available source perimeter;
- and
- a segmented source having an outer perimeter adjacent to the available source perimeter, wherein an outer perimeter of the segmented source is between 5% to 95% of the available source perimeter, and wherein the outer perimeter varies according to a distance of the segmented source from a center of the device.
1 more element
Dependencies are inferred from the claim text.