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Electronic power device integrated on a semiconductor material and related manufacturing process
Electronic power device integrated on a semiconductor material and related manufacturing process
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机译:集成在半导体材料上的电子功率器件及其相关制造工艺
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摘要
An electronic power device is integrated on a semiconductor substrate having a first conductivity type, on which an epitaxial layer of the same conductivity type is grown. The power device comprises a power stage and a control stage, this latter enclosed in an isolated region having a second conductivity type. The power stage comprises a first buried area having the second conductivity type and a second buried area, partially overlapping the first buried area and having the first conductivity type. The control stage comprises a third buried area, having the second conductivity type, and a fourth buried area, partially overlapped to the third buried area and having the first conductivity type. Said first, second, third and fourth buried areas are formed in the epitaxial layers at a depth sufficient to allow the power stage and the control stage to be entirely formed in the epitaxial layer.
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