公开(公告)号：US11072622B2

公开(公告)日：2021-07-27

申请号：US16406532

申请日：2019-05-08

Applicant: ASM INTERNATIONAL N.V.

Inventor： Viljami Pore ,  Timo Hatanpaa ,  Mikko Ritala ,  Markku Leskelä

IPC: C07F11/00 ,  C23C16/30 ,  C23C16/455 ,  H01L45/00 ,  H01L21/02

Abstract: Atomic layer deposition (ALD) processes for forming Te-containing thin films, such as Sb—Te, Ge—Te, Ge—Sb—Te, Bi—Te, and Zn—Te thin films are provided. ALD processes are also provided for forming Se-containing thin films, such as Sb—Se, Ge—Se, Ge—Sb—Se, Bi—Se, and Zn—Se thin films are also provided. Te and Se precursors of the formula (Te,Se)(SiR1R2R3)2 are preferably used, wherein R1, R2, and R3 are alkyl groups. Methods are also provided for synthesizing these Te and Se precursors. Methods are also provided for using the Te and Se thin films in phase change memory devices.

公开(公告)号：US11056385B2

公开(公告)日：2021-07-06

申请号：US16213479

申请日：2018-12-07

Applicant: ASM International N.V.

Inventor： Suvi P. Haukka ,  Antti Niskanen ,  Marko Tuominen

IPC: H01L21/768 ,  H01L21/285 ,  C23C16/04 ,  C23C16/14 ,  H01L21/02 ,  H01L21/3105 ,  C23C16/455 ,  H01L23/532

Abstract: Metallic layers can be selectively deposited on one surface of a substrate relative to a second surface of the substrate. In some embodiments, the metallic layers are selectively deposited on copper instead of insulating or dielectric materials. In some embodiments, a first precursor forms a layer on the first surface and is subsequently reacted or converted to form a metallic layer. The deposition temperature may be selected such that a selectivity of above about 50% or even about 90% is achieved.

公开(公告)号：US20200263300A1

公开(公告)日：2020-08-20

申请号：US16833937

申请日：2020-03-30

Applicant: ASM International N.V.

Inventor： Ernst Hendrik August GRANNEMAN ,  Leilei HU

IPC: C23C16/455 ,  H01L21/677 ,  C23C16/54 ,  C23C16/458 ,  C23C16/44

Abstract: An atomic layer deposition apparatus, having a first series of high pressure gas injection openings and a first series of exhaust openings that are positioned such that they together create a first high pressure/suction zone within each purge gas zone, wherein each first high pressure/suction zone extends over substantially the entire width of the process tunnel and wherein the distribution of the gas injection openings that are connected to the second purge gas source and the distribution of the gas exhaust openings within the first high pressure/suction zone, as well as the pressure of the second purge gas source and the pressure at the gas exhaust openings are such that the average pressure within the first high pressure/suction zone deviates less than 30% from a reference pressure which is defined by the average pressure within process tunnel when no substrate is present.

公开(公告)号：US10699899B2

公开(公告)日：2020-06-30

申请号：US16105312

申请日：2018-08-20

Applicant: ASM International N.V.

Inventor： Raija H. Matero ,  Linda Lindroos ,  Hessel Sprey ,  Jan Willem Maes ,  David de Roest ,  Dieter Pierreux ,  Kees van der Jeugd ,  Lucia D'Urzo ,  Tom E. Blomberg

IPC: H01L21/02 ,  H01L21/033 ,  H01L21/311 ,  H01L29/51 ,  H01L21/28 ,  H01L21/22 ,  C23F1/26

Abstract: Antimony oxide thin films are deposited by atomic layer deposition using an antimony reactant and an oxygen source. Antimony reactants may include antimony halides, such as SbCl3, antimony alkylamines, and antimony alkoxides, such as Sb(OEt)3. The oxygen source may be, for example, ozone. In some embodiments the antimony oxide thin films are deposited in a batch reactor. The antimony oxide thin films may serve, for example, as etch stop layers or sacrificial layers.

公开(公告)号：US20200185218A1

公开(公告)日：2020-06-11

申请号：US16702915

申请日：2019-12-04

Applicant: ASM International N.V.

Inventor： Noboru Takamure ,  Atsuki Fukazawa ,  Hideaki Fukuda ,  Antti Niskanen ,  Suvi Haukka ,  Ryu Nakano ,  Kunitoshi Namba

IPC: H01L21/02 ,  H01L21/324 ,  H01L21/225 ,  H01L21/22 ,  H01L29/66

Abstract: The present disclosure relates to the deposition of dopant films, such as doped silicon oxide films, by atomic layer deposition processes. In some embodiments, a substrate in a reaction space is contacted with pulses of a silicon precursor and a dopant precursor, such that the silicon precursor and dopant precursor adsorb on the substrate surface. Oxygen plasma is used to convert the adsorbed silicon precursor and dopant precursor to doped silicon oxide.

公开(公告)号：US10648078B2

公开(公告)日：2020-05-12

申请号：US15322653

申请日：2015-11-03

Applicant: ASM International N.V.

Inventor： Ernst Hendrik August Granneman ,  Leilei Hu

IPC: C23C16/455 ,  C23C16/44 ,  C23C16/458 ,  H01L21/677 ,  C23C16/54 ,  H01J37/32

Abstract: An atomic layer deposition apparatus, having a first series of high pressure gas injection openings and a first series of exhaust openings that are positioned such that they together create a first high pressure/suction zone within each purge gas zone, wherein each first high pressure/suction zone extends over substantially the entire width of the process tunnel and wherein the distribution of the gas injection openings that are connected to the second purge gas source and the distribution of the gas exhaust openings within the first high pressure/suction zone, as well as the pressure of the second purge gas source and the pressure at the gas exhaust openings are such that the average pressure within the first high pressure/suction zone deviates less than 30% from a reference pressure which is defined by the average pressure within process tunnel when no substrate is present.

公开(公告)号：US20190382887A1

公开(公告)日：2019-12-19

申请号：US16460139

申请日：2019-07-02

Applicant: ASM International N.V.

Inventor： Timo Hatanpaa ,  Jaakko Niinisto ,  Mikko Ritala ,  Markku Leskela ,  Suvi Haukka

IPC: C23C16/40 ,  C23C16/455 ,  C01G23/07 ,  C01G25/02 ,  C01G27/02

Abstract: Methods are provided herein for forming transition metal oxide thin films, preferably Group IVB metal oxide thin films, by atomic layer deposition. The metal oxide thin films can be deposited at high temperatures using metalorganic reactants. Metalorganic reactants comprising two ligands, at least one of which is a cycloheptatriene or cycloheptatrienyl (CHT) ligand are used in some embodiments. The metal oxide thin films can be used, for example, as dielectric oxides in transistors, flash devices, capacitors, integrated circuits, and other semiconductor applications.

公开(公告)号：US20190267231A1

公开(公告)日：2019-08-29

申请号：US16411957

申请日：2019-05-14

Applicant: ASM International N.V.

Inventor： Antti Rahtu ,  Eva Tois ,  Kai-Erik Elers ,  Wei-Min Li

IPC: H01L21/02 ,  C23C16/455 ,  H01L21/768 ,  H01L21/28 ,  C23C16/32 ,  H01L21/3205 ,  H01L21/285

Abstract: Methods of producing metal-containing thin films with low impurity contents on a substrate by atomic layer deposition (ALD) are provided. The methods preferably comprise contacting a substrate with alternating and sequential pulses of a metal source chemical, a second source chemical and a deposition enhancing agent. The deposition enhancing agent is preferably selected from the group consisting of hydrocarbons, hydrogen, hydrogen plasma, hydrogen radicals, silanes, germanium compounds, nitrogen compounds, and boron compounds. In some embodiments, the deposition-enhancing agent reacts with halide contaminants in the growing thin film, improving film properties.

公开(公告)号：US20190263848A1

公开(公告)日：2019-08-29

申请号：US16406532

申请日：2019-05-08

Applicant: ASM INTERNATIONAL N.V.

Inventor： Viljami Pore ,  Timo Hatanpaa ,  Mikko Ritala ,  Markku Leskelä

IPC: C07F11/00 ,  H01L45/00 ,  C23C16/455 ,  C23C16/30

Abstract: Atomic layer deposition (ALD) processes for forming Te-containing thin films, such as Sb—Te, Ge—Te, Ge—Sb—Te, Bi—Te, and Zn—Te thin films are provided. ALD processes are also provided for forming Se-containing thin films, such as Sb—Se, Ge—Se, Ge—Sb—Se, Bi—Se, and Zn—Se thin films are also provided. Te and Se precursors of the formula (Te,Se)(SiR1R2R3)2 are preferably used, wherein R1, R2, and R3 are alkyl groups. Methods are also provided for synthesizing these Te and Se precursors. Methods are also provided for using the Te and Se thin films in phase change memory devices.

公开(公告)号：US10308673B2

公开(公告)日：2019-06-04

申请号：US15711690

申请日：2017-09-21

Applicant: ASM INTERNATIONAL N.V.

Inventor： Viljami Pore ,  Timo Hatanpaa ,  Mikko Ritala ,  Markku Leskelä

IPC: C23C16/30 ,  C07F11/00 ,  C23C16/455 ,  H01L45/00 ,  H01L21/02

Abstract: Atomic layer deposition (ALD) processes for forming Te-containing thin films, such as Sb—Te, Ge—Te, Ge—Sb—Te, Bi—Te, and Zn—Te thin films are provided. ALD processes are also provided for forming Se-containing thin films, such as Sb—Se, Ge—Se, Ge—Sb—Se, Bi—Se, and Zn—Se thin films are also provided. Te and Se precursors of the formula (Te,Se)(SiR1R2R3)2 are preferably used, wherein R1, R2, and R3 are alkyl groups. Methods are also provided for synthesizing these Te and Se precursors. Methods are also provided for using the Te and Se thin films in phase change memory devices.