Abstract:
According to the invention there is provided a method of filling one or more gaps created during manufacturing of a feature on a substrate by providing a deposition method comprising; introducing a first reactant to the substrate with a first dose, thereby forming no more than about one monolayer by the first reactant; introducing a second reactant to the substrate with a second dose. The first reactant is introduced with a subsaturating first dose reaching only a top area of the surface of the one or more gaps and the second reactant is introduced with a saturating second dose reaching a bottom area of the surface of the one or more gaps. A third reactant may be provided to the substrate in the reaction chamber with a third dose, the third reactant reacting with at least one of the first and second reactant.
Abstract:
Methods of depositing boron and carbon containing films are provided. In some embodiments, methods of depositing B,C films with desirable properties, such as conformality and etch rate, are provided. One or more boron and/or carbon containing precursors can be decomposed on a substrate at a temperature of less than about 400° C. In some embodiments methods of depositing silicon nitride films comprising B and C are provided. A silicon nitride film can be deposited by a deposition process including an ALD cycle that forms SiN and a CVD cycle that contributes B and C to the growing film.
Abstract:
Methods and precursors for forming silicon nitride films are provided. In some embodiments, silicon nitride can be deposited by atomic layer deposition (ALD), such as plasma enhanced ALD. In some embodiments, deposited silicon nitride can be treated with a plasma treatment. The plasma treatment can be a nitrogen plasma treatment. In some embodiments the silicon precursors for depositing the silicon nitride comprise an iodine ligand. The silicon nitride films may have a relatively uniform etch rate for both vertical and the horizontal portions when deposited onto three-dimensional structures such as FinFETS or other types of multiple gate FETs. In some embodiments, various silicon nitride films of the present disclosure have an etch rate of less than half the thermal oxide removal rate with diluted HF (0.5%). In some embodiments, a method for depositing silicon nitride films comprises a multi-step plasma treatment.
Abstract:
Methods of depositing boron and carbon containing films are provided. In some embodiments, methods of depositing B,C films with desirable properties, such as conformality and etch rate, are provided. One or more boron and/or carbon containing precursors can be decomposed on a substrate at a temperature of less than about 400° C. In some embodiments methods of depositing silicon nitride films comprising B and C are provided. A silicon nitride film can be deposited by a deposition process including an ALD cycle that forms SiN and a CVD cycle that contributes B and C to the growing film.
Abstract:
The present invention generally related to adding Indium precursors to deposition processes for thin films. Indium precursors are added in order to increase the growth rate per cycle of the deposition process. A plurality of deposition processes are disclosed herein which comprising a plurality of deposition cycles and providing an In-precursor pulse before at least one reactant pulse in at least one deposition cycle. The In-precursor can be added for increasing the average growth rate per cycle by at least 50% and in many examples above 500% compared to the growth rate of a similar deposition process without providing an In-precursor. Examples disclosed herein include the deposition of thin films comprising pnictides or chalcogenides, made by atomic layer deposition.
Abstract:
Methods and precursors for depositing silicon nitride films by atomic layer deposition (ALD) are provided. In some embodiments the silicon precursors comprise an iodine ligand. The silicon nitride films may have a relatively uniform etch rate for both vertical and the horizontal portions when deposited onto three-dimensional structures such as FinFETS or other types of multiple gate FETs. In some embodiments, various silicon nitride films of the present disclosure have an etch rate of less than half the thermal oxide removal rate with diluted HF (0.5%).
Abstract:
The present invention generally related to adding Indium precursors to deposition processes for thin films. Indium precursors are added in order to increase the growth rate per cycle of the deposition process. A plurality of deposition processes are disclosed herein which comprising a plurality of deposition cycles and providing an In-precursor pulse before at least one reactant pulse in at least one deposition cycle. The In-precursor can be added for increasing the average growth rate per cycle by at least 50% and in many examples above 500% compared to the growth rate of a similar deposition process without providing an In-precursor. Examples disclosed herein include the deposition of thin films comprising pnictides or chalcogenides, made by atomic layer deposition.
Abstract:
Disclosed are methods and systems for filling a gap. An exemplary method comprises providing a substrate to a reaction chamber. The substrate comprises the gap. The method further comprises forming a convertible layer on the substrate and exposing the substrate to a conversion reactant. Accordingly, at least a part of the convertible layer is converted into a gap filling fluid. The gap filling fluid at least partially fills the gap. The methods and systems are useful, for example, in the field of integrated circuit manufacture.
Abstract:
The disclosure relates to methods of filling gaps in semiconductor substrates. A method of filling a gap is disclosed. The method including providing a substrate having a gap in a reaction chamber, providing a first precursor including silicon and carbon into the reaction chamber in a vapor phase, wherein the first precursor includes at least one unsaturated carbon-carbon bond and at least one atom selected from oxygen and nitrogen. The method further includes providing a first plasma into the reaction chamber to polymerize the first precursor for forming a gap filling material, thereby at least partially filling the gap with the gap filling material. In some embodiments, the at least one unsaturated bond is a double bond.
Abstract:
Disclosed are methods and systems for forming a silicon-containing layer on a substrate. The methods comprise executing a plurality of deposition cycles. A deposition cycle comprises a silicon precursor pulse that comprises exposing the substrate to a silicon precursor. The silicon precursor comprises silicon and one or more of a group 13 element and a group 15 element. A deposition cycle further comprises a plasma pulse that comprises exposing the substrate to a plasma treatment. The plasma treatment comprises generating a plasma.