Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Reexamination Certificate
2006-02-28
2006-02-28
Pham, Hoai (Department: 2814)
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
C438S270000
Reexamination Certificate
active
07005351
ABSTRACT:
A method for fabricating a transistor configuration including at least one trench transistor cell has a gate electrode and a field electrode disposed in a trench below the gate electrode. The trenches are formed in a semiconductor substrate. A drift zone, a channel zone, and a source zone are in each case provided in the semiconductor substrate. According to the invention, the source zone and/or the channel zone are formed at the earliest after the introduction of the trenches into the semiconductor substrate by implantation and diffusion.
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Henninger Ralf
Hirler Franz
Hofer Heimo
Krumrey Joachim
Pölzl Martin
Grenberg Laurence A.
Infineon - Technologies AG
Mayback Gregory L.
Pham Hoai
Stemer Werner H.
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