51.
    发明专利
    未知

    公开(公告)号:DE10034003A1

    公开(公告)日:2002-01-24

    申请号:DE10034003

    申请日:2000-07-07

    Abstract: Trench capacitor comprises: trench (2) formed in semiconductor substrate (1); conducting capacitor plates (60, 80); a dielectric layer (70) as capacitor dielectric applied by atomic layer deposition, atomic layer chemical vapor deposition or chemical vapor deposition between the plates; insulating collar (5'') in an upper region of trench; and an optional conducting filler material in the trench. Preferred Features: The first plate is a region of high doping in the substrate in the lower region of the trench and the second plate is the conducting filler material. The dielectric layer is made of alumina (Al2O3), tantalum pentoxide (Ta2O5), zirconia (ZrO2), hafnium oxide (HfO2), yttrium oxide (Y2O3), lanthanum oxide (La2O3), titanium oxide (TiO2), aluminum - tantalum oxygen (Al-Ta-O), aluminum - zirconium - oxygen (Al-Zr-O), aluminum - hafnium - oxygen (Al-Hf-O), aluminum - lanthanum - oxygen (Al-La-O), aluminum - titanium oxygen (Al-Ti-O), zirconium yttrium - oxygen (Zr-Y-O), zirconium - silicon - oxygen (Zr-Si-O), hafnium - silicon - oxygen (Hf-Si-O), silicon - oxygen - nitrogen (Si-O-N), tantalum - oxygen - nitrogen (Ta-O-N), gadolinium oxide (Gd2O3), tin oxide (SnO3), lanthanum - silicon - oxygen (La-Si-O), titanium -silicon -oxygen (Ti-Si-O), lanthanum aluminate (LaAlO3), zirconium titanate (ZrTiO4), (zirconium, tin) titanate ((Zr, Sn)TiO4), strontium zirconate (SrZrO4), lanthanum aluminate (LaAlO4) or barium zirconate (BaZrO3).

    58.
    发明专利
    未知

    公开(公告)号:DE102005008478B3

    公开(公告)日:2006-10-26

    申请号:DE102005008478

    申请日:2005-02-24

    Abstract: The method involves preparing substrate (1), forming first auxiliary layer and then second auxiliary layer structure (3,4). The first auxiliary layer is anisotropically etched using the auxiliary structure as a mask to form an anisotropic structured first auxiliary layer structure. This is reverse isotropically etched to remove sections and form an isotropically structured first auxiliary structure. A mask is formed over the sections. This is anisotropically etched to the substrate to form sublithographic structure (5A). Auxiliary structures are removed to reveal the sublithographic structure.

    59.
    发明专利
    未知

    公开(公告)号:DE102005014645A1

    公开(公告)日:2006-10-05

    申请号:DE102005014645

    申请日:2005-03-31

    Inventor: SEIDL HARALD

    Abstract: The electrode (4) has an electrically conducting electrode material (E) with a connection surface for a phase-transition-material. A number of isolation regions (I) are designed at the connection surface within the electrode material for reducing total contact area. The electrode material is coherently designed between the isolation regions, which extend from the connection surface to an opposite main surface. An independent claim is also included for a method of manufacturing a phase-transition-memory unit.

    60.
    发明专利
    未知

    公开(公告)号:DE102005012112A1

    公开(公告)日:2006-08-31

    申请号:DE102005012112

    申请日:2005-03-16

    Abstract: A thin SiGe layer is provided as an additional lower gate electrode layer and is arranged between a thin gate oxide and a gate electrode layer, preferably of polysilicon. The SiGe layer can be etched selectively to the gate electrode and the gate oxide and is laterally removed adjacent the source/drain regions in order to form recesses, which are subsequently filled with a material that is appropriate for charge-trapping. The device structure and production method are appropriate for an integration scheme comprising local interconnects of memory cells, a CMOS logic periphery and means to compensate differences of the layer levels in the array and the periphery.

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