公开(公告)号：US10665425B2

公开(公告)日：2020-05-26

申请号：US16390319

申请日：2019-04-22

Applicant: ASM IP Holding B.V.

Inventor： Tom E. Blomberg ,  Varun Sharma ,  Suvi P. Haukka ,  Marko J. Tuominen ,  Chiyu Zhu

IPC: H01J37/32 ,  C23F1/12 ,  H01L21/311 ,  C23G5/00 ,  H01L21/3213

Abstract: Atomic layer etching (ALE) processes are disclosed. In some embodiments, the methods comprise at least one etch cycle in which the substrate is alternately and sequentially exposed to a first vapor phase non-metal halide reactant and a second vapor phase halide reactant. In some embodiments both the first and second reactants are chloride reactants. In some embodiments the first reactant is fluorinating gas and the second reactant is a chlorinating gas. In some embodiments a thermal ALE cycle is used in which the substrate is not contacted with a plasma reactant.

公开(公告)号：US20190088555A1

公开(公告)日：2019-03-21

申请号：US15707786

申请日：2017-09-18

Applicant: ASM IP Holding B.V.

Inventor： Qi Xie ,  Chiyu Zhu ,  Kiran Shrestha ,  Pauline Calka ,  Oreste Madia ,  Jan Willem Maes ,  Michael Eugene Givens

IPC: H01L21/8238 ,  H01L29/49 ,  H01L27/092 ,  H01L29/51

Abstract: A method for forming a semiconductor device structure is disclosure. The method may include, depositing an NMOS gate dielectric and a PMOS gate dielectric over a semiconductor substrate, depositing a first work function metal over the NMOS gate dielectric and over the PMOS gate dielectric, removing the first work function metal over the PMOS gate dielectric, and depositing a second work function metal over the NMOS gate dielectric and over the PMOS gate dielectric. Semiconductor device structures including desired metal gate electrodes deposited by the methods of the disclosure are also disclosed.

公开(公告)号：US20190067095A1

公开(公告)日：2019-02-28

申请号：US16117530

申请日：2018-08-30

Applicant: ASM IP Holding B.V.

Inventor： Chiyu Zhu ,  Kiran Shrestha ,  Qi Xie ,  Bhushan Zope

IPC: H01L21/768 ,  C23C16/455 ,  C23C16/448

Abstract: There is provided a method of forming a layer, comprising depositing a seed layer on the substrate; and depositing a bulk layer on the seed layer. Depositing the seed layer comprises supplying a first precursor comprising metal and halogen atoms to the substrate; and supplying a first reactant to the substrate. Depositing the bulk layer comprises supplying a second precursor comprising metal and halogen atoms to the seed layer; and, supplying a second reactant to the seed layer.

公开(公告)号：US20190067016A1

公开(公告)日：2019-02-28

申请号：US15691241

申请日：2017-08-30

Applicant: ASM IP Holding B.V.

Inventor： Chiyu Zhu ,  Kiran Shrestha ,  Qi Xie

IPC: H01L21/285 ,  C23C16/455

Abstract: There is provided a method of forming a layer, comprising depositing a seed layer on the substrate and depositing a bulk layer on the seed layer. Depositing the seed layer comprises supplying a first precursor comprising metal and halogen atoms to the substrate; and supplying a first reactant to the substrate. Depositing the bulk layer comprises supplying a second precursor comprising metal and halogen atoms to the seed layer and supplying a second reactant to the seed layer.

公开(公告)号：US10190213B2

公开(公告)日：2019-01-29

申请号：US15135333

申请日：2016-04-21

Applicant: ASM IP Holding B.V.

Inventor： Chiyu Zhu ,  Kiran Shrestha ,  Suvi Haukka

IPC: C23C16/38 ,  C23C16/455

Abstract: A method for depositing a metal film onto a substrate is disclosed. In particular, the method comprises pulsing a metal halide precursor onto the substrate and pulsing a decaborane precursor onto the substrate. A reaction between the metal halide precursor and the decaborane precursor forms a metal film, specifically a metal boride.

公开(公告)号：US20180286675A1

公开(公告)日：2018-10-04

申请号：US15917262

申请日：2018-03-09

Applicant: ASM IP Holding B.V.

Inventor： Tom Blomberg ,  Chiyu Zhu

IPC: H01L21/02

Abstract: Methods for forming a doped metal oxide film on a substrate by cyclical deposition are provided. In some embodiments, methods may include contacting the substrate with a first reactant comprising a metal halide source, contacting the substrate with a second reactant comprising a hydrogenated source and contacting the substrate with a third reactant comprising an oxide source. In some embodiments, related semiconductor device structures may include a doped metal oxide film formed by cyclical deposition processes.

公开(公告)号：US20170154806A1

公开(公告)日：2017-06-01

申请号：US15432263

申请日：2017-02-14

Applicant: ASM IP Holding B.V.

Inventor： Han Wang ,  Qi Xie ,  Delphine Longrie ,  Jan Willem Maes ,  David de Roest ,  Julian Hsieh ,  Chiyu Zhu ,  Timo Asikainen ,  Krzysztof Kachel ,  Harald Profijt

IPC: H01L21/768 ,  H01L21/311 ,  H01L23/532 ,  H01L21/02

CPC classification number: H01L21/7685 ,  H01L21/02178 ,  H01L21/02205 ,  H01L21/02274 ,  H01L21/0228 ,  H01L21/02315 ,  H01L21/0234 ,  H01L21/283 ,  H01L21/31122 ,  H01L21/31144 ,  H01L23/53266

Abstract: Methods are provided for selectively depositing Al and N containing material on a first conductive surface of a substrate relative to a second, dielectric surface of the same substrate. In some aspects, methods of forming an Al and N containing protective layer or etch stop layer for use in integrated circuit fabrication are provided.

公开(公告)号：US20170040164A1

公开(公告)日：2017-02-09

申请号：US14819274

申请日：2015-08-05

Applicant: ASM IP Holding B.V.

Inventor： Han Wang ,  Qi Xie ,  Delphine Longrie ,  Jan Willem Maes ,  David de Roest ,  Julian Hsieh ,  Chiyu Zhu ,  Timo Asikainen

IPC: H01L21/02 ,  H01L21/311 ,  H01L21/283

Abstract: Methods are provided for selectively depositing Al and N containing material on a first conductive surface of a substrate relative to a second, dielectric surface of the same substrate. In some aspects, methods of forming an Al and N containing protective layer or etch stop layer for use in integrated circuit fabrication are provided.

Abstract translation: 提供了用于相对于同一衬底的第二电介质表面在衬底的第一导电表面上选择性地沉积含Al和N的材料的方法。 在一些方面，提供了形成用于集成电路制造中的含有Al和N的保护层或蚀刻停止层的方法。

公开(公告)号：US20160118261A1

公开(公告)日：2016-04-28

申请号：US14919180

申请日：2015-10-21

Applicant: ASM IP Holding B.V.

Inventor： Suvi Haukka ,  Michael Givens ,  Eric Shero ,  Jerry Winkler ,  Petri Räisänen ,  Timo Asikainen ,  Chiyu Zhu ,  Jaakko Anttila

IPC: H01L21/285 ,  H01L29/49

CPC classification number: H01L29/4966 ,  C23C16/06 ,  C23C16/34 ,  C23C16/45523 ,  C23C16/45525 ,  C23C16/45531 ,  H01L21/28562 ,  H01L21/32051 ,  H01L29/517

Abstract: A process for depositing titanium aluminum or tantalum aluminum thin films comprising nitrogen on a substrate in a reaction space can include at least one deposition cycle. The deposition cycle can include alternately and sequentially contacting the substrate with a vapor phase Ti or Ta precursor and a vapor phase Al precursor. At least one of the vapor phase Ti or Ta precursor and the vapor phase Al precursor may contact the substrate in the presence of a vapor phase nitrogen precursor.

Abstract translation: 在反应空间中在基板上沉积包含氮的钛铝或钽铝薄膜的方法可以包括至少一个沉积循环。 沉积循环可以包括交替地和顺序地接触基底与气相Ti或Ta前体和气相Al前体。 气相Ti或Ta前体和气相Al前体中的至少一种可以在气相氮前体存在下与基底接触。

公开(公告)号：US12283520B2

公开(公告)日：2025-04-22

申请号：US18215249

申请日：2023-06-28

Applicant: ASM IP Holding B.V.

Inventor： Chiyu Zhu

IPC: H01L21/768 ,  H01L21/02

Abstract: A method for depositing a film to form an air gap within a semiconductor device is disclosed. An exemplary method comprises pulsing a metal halide precursor onto the substrate and pulsing an oxygen precursor onto a selective deposition surface. The method can be used to form an air gap to, for example, reduce a parasitic resistance of the semiconductor device.