Dual selective deposition
AssigneeASM IP Holding B.V.
InventorsSuvi P. Haukka, Raija H. Matero, Eva Tois, Antti Niskanen, Marko Tuominen, Hannu Huotari, Viljami J. Pore
Life of this patent
Estimating the term…
Abstract
Methods are provided for dual selective deposition of a first material on a first surface of a substrate and a second material on a second, different surface of the same substrate. The selectively deposited materials may be, for example, metal, metal oxide, or dielectric materials.
Claims52
A method for selectively depositing a first metallic material on a first surface of a substrate and a second dielectric material on a second surface of the same substrate, wherein the first surface is a surface of metal or semiconductor material and the second surface comprises OH, NHx or SRx-terminations, the method comprising:
- selectively depositing the first metallic material on the first surface of the substrate relative to the second surface comprising OH, NHx or SHx-terminations by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant;
- and
- selectively depositing the second dielectric material on the second surface comprising OH, NHx or SHx-terminations relative to the first surface by a vapor deposition process comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant,
- wherein the second surface comprises OH, NHx or SHx-terminations when the first metallic material is selectively deposited.
A method for selectively depositing two different materials on two different surfaces of a substrate, wherein a first surface is a surface comprising a metal or semiconductor material and a second surface comprises OH, NHx or SHx-terminations, the method comprising:
- selectively depositing a first material on the first surface of the substrate relative to the second surface comprising OH, NHx or SHx-terminations by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant;
- and
- selectively depositing a second material on the second surface comprising OH, NHx or SHx-terminations relative to the first surface by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant,
- wherein at least one of selectively depositing the first material and selectively depositing the second material is an atomic layer deposition (ALD) process,
- wherein the second surface comprises OH, NHx or SHx-terminations when the first material is selectively deposited.
A method for selectively depositing a first metallic material on a first metal or semiconductor surface of a substrate and a second dielectric material on a second surface of the same substrate, wherein the second surface comprises a surface of a material that is not conducting or semiconducting and comprises OH terminations, the method comprising:
- selectively depositing the first metallic material on the first surface of the substrate relative to the second surface comprising OH terminations by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant;
- and
- selectively depositing the second dielectric material on the second surface comprising OH terminations relative to the first surface by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant,
- wherein the second surface comprises OH terminations during the selectively depositing the first metallic material step.
A method for selectively depositing tungsten on a first surface of a substrate and antimony on a second different surface of the same substrate comprising OH, NHx or SHx-terminations, the method comprising:
- selectively depositing the tungsten on the first surface of the substrate relative to the second surface comprising OH, NHx or SHx-terminations by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first tungsten precursor and a second reactant;
- and
- selectively depositing the antimony on the second surface comprising OH, NHx or SHx-terminations relative to the first surface by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first antimony precursor and a second reactant,
- wherein the second surface comprises OH, NHx or SHx-terminations when the tungsten is selectively deposited.
A method for selectively depositing a material comprising nickel on a first surface of a substrate comprising OH, NHx or SHx-terminations and germanium oxide on a second surface different of the same substrate, the method comprising:
- selectively depositing the material comprising nickel on the first surface comprising OH, NHx or SHx-terminations relative to the second surface of the substrate by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first nickel precursor and a second reactant;
- and
- selectively depositing the germanium oxide on the second surface of the substrate relative to the first surface by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first germanium precursor and a second reactant,
- wherein the first surface comprises OH, NHx or SHx-terminations during the selectively depositing the material comprising nickel step.
A method for selectively depositing ruthenium on a first surface of a substrate and germanium oxide or silicon dioxide on a second surface of the same substrate comprising OH surface terminations, the method comprising:
- selectively depositing the ruthenium on the first surface of the substrate relative to the second surface comprising OH surface terminations by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant;
- and
- selectively depositing the germanium oxide or the silicon dioxide on the second surface comprising OH surface terminations relative to the first surface by a vapor deposition process comprising at least one deposition cycle comprising alternately and sequentially contacting the substrate with a first metal precursor and a second reactant,
- wherein the second surface comprises OH terminations when the ruthenium is selectively deposited.
Dependencies are inferred from the claim text.