摘要:
Charge-trapping regions are arranged beneath lower edges of the gate electrode separate from one another. Source/drain regions are formed in self-aligned manner with respect to the charge-trapping regions by means of a doping process at low energy in order to form shallow junctions laterally extending only a small distance beneath the charge-trapping regions. The self-alignment ensures a large number of program-erase cycles with high effectiveness and good data retention, because the locations of the injections of charge carriers of opposite signs are narrowly and exactly defined.
摘要:
A process for modifying sections of a semiconductor includes covering the sections to remain free of doping with a metal oxide, e.g., aluminum oxide. Then, the semiconductor is doped, for example, from the gas phase, in those sections that are not covered by the aluminum oxide. Finally, the aluminum oxide is selectively removed again, for example using hot phosphoric acid. Sections of the semiconductor surface which are formed from silicon, silicon oxide or silicon nitride remain in place on the wafer.
摘要:
A method for fabricating a semiconductor trench structure includes forming a trench in a semiconductor substrate and filling it with a filler. A first thermal process having a first maximum temperature cures the filler. Removing the filler from an upper region of the trench as far as a boundary surface defines a collar region. In a second thermal process having a second maximum temperature that is not significantly higher than the first maximum temperature, a liner is deposited on the collar region and the boundary surface. The liner is removed from the boundary surface, thereby exposing the filler. The filler is then removed from a lower region of the trench.
摘要:
A process for modifying sections of a semiconductor includes covering the sections to remain free of doping with a metal oxide, e.g., aluminum oxide. Then, the semiconductor is doped, for example, from the gas phase, in those sections that are not covered by the aluminum oxide. Finally, the aluminum oxide is selectively removed again, for example using hot phosphoric acid. Sections of the semiconductor surface which are formed from silicon, silicon oxide or silicon nitride remain in place on the wafer.
摘要:
On a substrate surface, which has been patterned in the form of a relief, of a substrate, typically of a semiconductor wafer, a deposition process is used to provide a covering layer on process surfaces which are vertical or inclined with respect to the substrate surface. The covering layer is patterned in a direction which is vertical with respect to the substrate surface by limiting a process quantity of at least one precursor material and/or by temporarily limiting the deposition process, and is formed as a functional layer or mask for subsequent process steps.
摘要:
A method for providing interlocking strained silicon on a silicon substrate, comprises providing a mask on a surface of the substrate. The mask comprises a first plurality of openings corresponding to a first plurality of holes to be etched and comprises a second plurality of openings corresponding to a second plurality of holes to be etched. The surface of the substrate is etched through the mask to form the first and second pluralities of holes. A first strain type material is deposited into the first plurality of holes to form a plurality of first strain type portions. A plurality of second strain type portions are formed at the second plurality of holes.
摘要:
The invention relates to an electrode arrangement for charge storage with an external trench electrode (202; 406), embodied along the wall of a trench provided in a substrate (401) and electrically insulated on both sides in the trench by a first and a second dielectric (104; 405, 409); an internal trench electrode (201; 410), serving as counter-electrode to the external trench electrode (201; 406) and insulated by the second dielectric (104; 409) and a substrate electrode (201; 403), which is insulated by the first dielectric (104; 405) outside the trench, which serves as counter-electrode to the external trench electrode (202; 406) and is connected to the internal trench electrode (201; 410) in the upper trench region.
摘要:
The present invention relates to a transistor comprising a gate channel area and a gate stack having mechanical stress arranged on the gate channel area.
摘要:
A method of formation of contacts with cobalt silicide since is disclosed. For example, after siliciding with the SOM solution, both unreacted sections of the deposition layer including, for example, cobalt as initial layer for the siliciding and an oxidation protection layer including titanium and deposited by means of cathode beam sputtering, for instance, may be removed rapidly and with high selectivity relative to the cobalt silicide and other, densified metal structures and metal layers.
摘要:
The invention relates to a method for manufacturing a semiconductor device. A silicon substrate comprising at least one structured area in which a dopant is implanted is provided. A contact modifying material is provided on the surface of the at least one structured area. A silicide layer is formed on the surface of the at least one structured area, the silicide layer comprising at least one of titan silicide, titan nitride silicide and cobalt silicide.