Abstract:
In selective oxidation of gate structures known per se, which contain a polycrystalline silicon layer and a tungsten layer, tungsten oxide evaporation is prevented or at least substantially reduced by means of a special process control, whereby the gate structure is exposed to a non-aqueous inert gas containing hydrogen before and optionally after a treatment step with a hydrogen/water mixture.
Abstract:
Ein Verfahren (100) zum Bilden eines Breiter-Bandabstand-Halbleiter-Bauelements (500), das Verfahren (100) umfassend:Bilden einer Gate-Isolierschicht (110) auf einem Breiter-Bandabstand-Halbleiter-Substrat; undTempern der Gate-Isolierschicht (120) unter Verwendung von zumindest einer ersten Reaktivgasspezies und zumindest einer zweiten Reaktivgasspezies, wobei sich die erste Reaktivgasspezies von der zweiten Reaktivgasspezies unterscheidet, wobei das Tempern der Gate-Isolierschicht (120) in einer Reaktivgasatmosphäre ausgeführt wird, die gleichzeitig zumindest 0,1 Vol.-% der ersten Reaktivgasspezies und zumindest 0,1 Vol.-% der zweiten Reaktivgasspezies umfasst,wobei eine Dauer des Temperns der Gate-Isolierschicht unter Verwendung von Wasserstoff als erste oder zweite Reaktivgasspezies zumindest 20 Minuten und höchstens 600 Minuten ist.
Abstract:
Semiconductor structure manufacturing method has the following steps: provision of a semiconductor substrate (1) with a trench (5) and deposition of a filling layer (10b) of doped silicon to fill the trench and cover the surrounding structure using an over-conforming separation method that has an over-conforming separation rate due to a dosing concentration gradient. This ensures that the trench is at least partially filled from the bottom to the top.
Abstract:
Ein Verfahren (100) zum Bilden eines Breiter-Bandabstand-Halbleiter-Bauelements (500) ist bereitgestellt. Das Verfahren (100) umfasst das Bilden einer Gate-Isolierschicht (110) auf einem Breiter-Bandabstand-Halbleiter-Substrat und das Tempern der Gate-Isolierschicht (120) unter Verwendung von zumindest einer ersten Reaktivgasspezies und einer zweiten Reaktivgasspezies, wobei sich die erste Reaktivgasspezies von der zweiten Reaktivgasspezies unterscheidet. Das Verfahren kann das Bilden einer Gate-Elektrode (130) auf der Gate-Isolierschicht nach dem Tempern der Gate-Isolierschicht umfassen.
Abstract:
The capacitor has a first electrode layer (103), a second electrode layer (104,105) and a dielectric intermediate layer (110) between the electrode layers. The dielectric layer contains a high k dielectric and at least one component containing silicon. Independent claims also cover a method of manufacture.
Abstract:
The capacitor has a first electrode layer (103), a second electrode layer (104,105) and a dielectric intermediate layer (110) between the electrode layers. The dielectric layer contains a high k dielectric and at least one component containing silicon. Independent claims also cover a method of manufacture.
Abstract:
In selective oxidation of gate structures known per se, which contain a polycrystalline silicon layer and a tungsten layer, tungsten oxide evaporation is prevented or at least substantially reduced by means of a special process control, whereby the gate structure is exposed to a non-aqueous inert gas containing hydrogen before and optionally after a treatment step with a hydrogen/water mixture.
Abstract:
During a selective oxidation of gate structures that includes a polycrystalline silicon layer and a tungsten layer, which is known per se, a vapor deposition of tungsten oxide is prevented or at least greatly reduced by a special process. The gate structure is acted on by a hydrogen-containing, nonaqueous inert gas before and, if appropriate, after a treatment step with a hydrogen/water mixture.
Abstract:
Memory and method for fabricating it A memory formed as an integrated circuit in a semiconductor substrate and having storage capacitors and switching transistors. The storage capacitors are formed in the semiconductor substrate in a trench and have an outer electrode layer, which is formed around the trench, a dielectric intermediate layer, which is embodied on the trench wall, and an inner electrode layer, with which the trench is essentially filled, and the switching transistors are formed in the semiconductor substrate in a surface region and have a first source/drain doping region, a second source/drain doping region and an intervening channel, which is separated from a gate electrode by an insulator layer.