Trench gate IGBT chip
The invention provides a trench gate IGBT chip. The trench gate IGBT chip comprises a plurality of cells connected in parallel, each cell comprises a first trench gate and a second trench gate, each first trench gate and the corresponding second trench gate are isolated through a first conduction ty...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a trench gate IGBT chip. The trench gate IGBT chip comprises a plurality of cells connected in parallel, each cell comprises a first trench gate and a second trench gate, each first trench gate and the corresponding second trench gate are isolated through a first conduction type region, each second trench gate is located on one side of the corresponding first trench gate, and an emitter and a second conduction type source electrode region are arranged on the other side of the corresponding first trench gate. The trench gate IGBT chip further comprises third trench gates formed in the first conduction type region, and the straight line where the gate lengths of the third trench gates are located is intersected with the straight line where the gate lengths of the second trench gates are located. Compared with the prior art, the trench gate IGBT chip has the advantages that technology difficulty and technology cost for manufacturing cannot be increased. In addition, as the third trench gat |
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