Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Patent
1998-02-12
2000-05-02
Niebling, John F.
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
438306, 438734, H01L 21336
Patent
active
060571993
ABSTRACT:
The process produces a semiconductor body with a first region that has a self-aligning structure and with a further second region. The insulation layer lying on a semiconductor layer in the first region is fully removed in the second region using a photographic technique and a subsequent etching process. Subsequently, or at the same time, the requisite structuring of the semiconductor layer and of the insulation layer is carried out in the first region. This leads to substantially lesser topography changes and steps and thus higher packing density in the further region of the semiconductor body.
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Peri Hermann
Stecher Matthias
Greenberg Laurence A.
Lattin Christopher
Lerner Herbert L.
Niebling John F.
Siemens Aktiengesellschaft
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