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A New Concept for the Lateral DMOS Transistor for Smart Power IC's:
A new type LDMOS with U-shape trench, filled with oxide is introduced, the U-trench can play a great role of enhancing the breakdown voltage, which is improved by the vertical current flow direction and buried breakdown point.
And the technique can also reduce the die size, A higher breakdown voltage can be obtained from the same drift length by U-trench than conventional LDMOS.
[ 本帖最后由 suk.qi 于 2008-7-3 09:50 编辑 ] |
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