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AN3994 데이터시트(PDF) 5 Page - STMicroelectronics |
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AN3994 데이터시트(HTML) 5 Page - STMicroelectronics |
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5 / 53 page ![]() AN3994 ST multidrain technology evolution Doc ID 022380 Rev 1 5/53 1 ST multidrain technology evolution At the beginning of 2000, STMicroelectronics introduced the super junction MOSFET technology to the market, the basic structure of which is clear from Figure 1: Figure 1. Standard HV MOSFET device cross section Figure 2. MD device cross section As concerns standard MOSFET technology, designers understand that RDS(on) * area and breakdown voltage are associated with a theoretical limit which strictly depends on the material and can not be overcome. Development efforts of the major suppliers have mainly focused on making the RDS(on)* area as close as possible to this physical limit, by reducing the most important contributions of a high voltage Power MOSFET to the total RDS(on). |
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